iHP Owner’s Manual
iHP Manual 2 | P a g e
iHP Owners Manual
Contents
Overview ........................................................................................................................................................ 10
1.1 General Description .............................................................................................................................. 10
1.2 Operational Overview ........................................................................................................................... 10
1.3 Specification Summary .......................................................................................................................... 11
1.3.1 Environmental ................................................................................................................................... 14
1.3.2 Electrical Specifications ..................................................................................................................... 14
1.3.3 Mechanical Outline ........................................................................................................................... 17
1.3.4 Front and Rear Panel ......................................................................................................................... 17
Installation ..................................................................................................................................................... 19
2.1 Inspection of Packaging and IHP System............................................................................................... 19
2.2 Package Contents .................................................................................................................................. 19
2.3 Installation Requirements ..................................................................................................................... 20
2.3.1 Location Requirements ..................................................................................................................... 20
2.3.2 Lifting Provision ................................................................................................................................. 21
2.3.3 Mounting ........................................................................................................................................... 21
2.4 Inserting Modules ................................................................................................................................. 21
2.5 Input and Output Wiring ....................................................................................................................... 23
2.5.1 AC Input Wiring ................................................................................................................................. 24
2.5.2 DC Output Wiring .............................................................................................................................. 26
2.5.3 Remote Sense Wiring ........................................................................................................................ 27
2.5.4 Parallel Module Connection .............................................................................................................. 27
2.5.5 Current Share Signal Wiring .............................................................................................................. 28
2.5.6 Series Modules Connection ............................................................................................................... 28
2.5.7 Output Blocking Diode and Antiparallel Diode Recommendation ................................................... 29
Digital Communication .................................................................................................................................. 32
3.1 iHP Digital Communication Identifier .................................................................................................... 33
3.1.1 iHP Address ....................................................................................................................................... 34
3.1.2 Internal Device Address inside iHP .................................................................................................... 35
3.2 iHP Commands ...................................................................................................................................... 35
iHP Manual 3 | P a g e
iHP Owners Manual
3.3 Interval Between User Commands ....................................................................................................... 36
3.4 Ethernet Communication ...................................................................................................................... 36
3.5 RS485 Communication .......................................................................................................................... 40
3.6 CAN Communication ............................................................................................................................. 41
Operation ....................................................................................................................................................... 43
4.1 iHP System Power-up ............................................................................................................................ 43
4.1.1 Initial Power-up ................................................................................................................................. 43
4.1.2 iHP Module Default Settings ............................................................................................................. 44
4.1.3 ISOCOMM Default Settings ............................................................................................................... 46
4.2 Module and Rack Hardware Signals ...................................................................................................... 46
4.2.1 Module Interface Signals ................................................................................................................... 47
4.2.1.1 Module’s J1 Signal ..................................................................................................................... 47
4.2.1.1.1 Analog Voltage Programming ............................................................................................. 48
4.2.1.1.2 Analog Current Programming ............................................................................................. 49
4.2.1.1.3 SYS_RTN .............................................................................................................................. 50
4.2.1.1.4 Isolated Output Inhibit ........................................................................................................ 50
4.2.1.1.5 Isolated Output Enable ....................................................................................................... 51
4.2.1.1.6 Isolated Fault Signal ............................................................................................................ 52
4.2.1.2 Module’s J2 Signal ..................................................................................................................... 53
4.2.1.2.1 V_SNS+ and V_SNS-............................................................................................................. 54
4.2.1.2.2 External Current Sense ........................................................................................................ 55
4.2.1.2.3 Current Monitor (IMON) ..................................................................................................... 56
4.2.1.2.4 Voltage Monitor (VMON) .................................................................................................... 57
4.2.1.2.5 Current Sharing Signal (ISHARE) .......................................................................................... 57
4.2.1.2.6 D_RTN ................................................................................................................................. 57
4.2.2 iHP Rack Communications and Interfaces......................................................................................... 58
4.2.2.1 USB Port .................................................................................................................................... 59
4.2.2.2 ETHERNET Port .......................................................................................................................... 59
4.2.2.3 RS485/CAN Port ........................................................................................................................ 59
4.2.2.3.1 CANL and CANH................................................................................................................... 59
4.2.2.3.2 RS485_A and RS485_B ........................................................................................................ 59
4.2.2.3.3 GND ..................................................................................................................................... 60
iHP Manual 4 | P a g e
iHP Owners Manual
4.2.2.3.4 5V Housekeeping Bias ......................................................................................................... 60
4.2.2.4 LAN RESET BUTTON ................................................................................................................... 60
4.2.2.5 LAN STATUS LED ........................................................................................................................ 60
4.2.2.6 DSUB9 Port ................................................................................................................................ 60
4.2.2.6.1 5V Housekeeping Bias ......................................................................................................... 61
4.2.2.6.2 5V Housekeeping Bias Return ............................................................................................. 61
4.2.2.6.3 Global Inhibit/Enable Logic “1” ........................................................................................... 61
4.2.2.6.4 Global Inhibit/Enable Logic “0” ........................................................................................... 62
4.2.2.6.5 ACOK Signal “Power Fail” (Uncommitted Transistor) ......................................................... 63
4.2.2.6.6 DCOK Signal “Output Fail” (Uncommitted Transistor) ........................................................ 63
4.3 Module Operating Mode ...................................................................................................................... 64
4.4 Digital Control ....................................................................................................................................... 65
4.4.1 Digital Voltage Source (DVS) ............................................................................................................. 65
4.4.1.1 DVS Protection Modes .............................................................................................................. 67
4.4.1.1.1 DVS Protection Over Current Response .............................................................................. 67
4.4.1.1.2 DVS Short Circuit Protection ............................................................................................... 68
4.4.1.1.3 DVS Protection Over Voltage Protection (OVP) .................................................................. 68
4.4.1.1.4 DVS Protection Under Voltage Protection (UVP) ................................................................ 68
4.4.2 Digital Current Source (DCS) ............................................................................................................. 69
4.4.2.1 DCS Protection Modes .............................................................................................................. 70
4.4.2.1.1 DCS Protection: Constant Voltage Clamp ........................................................................... 70
4.4.2.1.2 DCS Protection: Over Current Response and Short Circuit Protection ............................... 70
4.4.2.1.3 DCS Protection: Over Voltage Protection (OVP) ................................................................. 71
4.4.2.1.4 DCS Protection: Under Voltage Protection (UVP) ............................................................... 71
4.4.3 Module Grouping for Series or Parallel Connection Digital Operation ............................................. 71
4.4.3.1 DVS Parallel Connection ............................................................................................................ 71
4.4.3.1.1 DVS Parallel Connection Protection .................................................................................... 72
4.4.3.2 DVS Series Connection .............................................................................................................. 72
4.4.3.2.1 DVS Series Connection Protection ...................................................................................... 74
4.4.3.3 DCS Parallel Connection ............................................................................................................ 74
4.4.3.3.1 DCS Parallel Connection Protection .................................................................................... 74
4.5 Analog Control....................................................................................................................................... 75
iHP Manual 5 | P a g e
iHP Owners Manual
4.5.1 Analog Voltage Source (AVS) ............................................................................................................. 75
4.5.1.1 AVS Protection Modes .............................................................................................................. 77
4.5.1.1.1 AVS Protection Over Current Response .............................................................................. 77
4.5.1.1.2 AVS Short Circuit Protection ............................................................................................... 78
4.5.1.1.3 AVS Protection Over Voltage Protection (OVP) .................................................................. 78
4.5.1.1.4 AVS Protection Under Voltage Protection (UVP) ................................................................ 78
4.5.2 Analog Current Source (ACS) ............................................................................................................. 78
4.5.2.1 ACS Protection Modes............................................................................................................... 80
4.5.2.1.1 ACS Protection: Constant Voltage Clamp ........................................................................... 80
4.5.2.1.2 ACS Protection: Over Current Protection and Short Circuit Protection .............................. 80
4.5.2.1.3 ACS Protection: Over Voltage Protection (OVP) ................................................................. 80
4.5.2.1.4 ACS Protection: Under Voltage Protection (UVP) ............................................................... 80
4.5.3 Module Grouping for Series or Parallel Connection Analog Operation ............................................ 80
4.5.3.1 AVS Parallel Connection ............................................................................................................ 81
4.5.3.1.1 AVS Parallel Connection Protection .................................................................................... 81
4.5.3.2 AVS Series Connection .............................................................................................................. 81
4.5.3.2.1 AVS Parallel Connection Protection .................................................................................... 82
4.5.3.3 ACS Parallel Connection ............................................................................................................ 82
4.5.3.3.1 AVS Series Connection Protection ...................................................................................... 83
Configuration ................................................................................................................................................. 84
5.1 ISOCOMM User Configurable Parameters ............................................................................................ 84
5.1.1 Home Section .................................................................................................................................... 87
5.1.1.1 Home Page ISOCOMM Section ................................................................................................. 88
5.1.1.2 Home Page Module Section ...................................................................................................... 88
5.1.1.3 Home Page Racks Section ......................................................................................................... 88
5.1.2 Network Section ................................................................................................................................ 89
5.1.2.1 DHCP .......................................................................................................................................... 90
5.1.2.2 Static IP Address ........................................................................................................................ 90
5.1.2.3 CAN/RS485 Setting .................................................................................................................... 90
5.1.3 Rack Section ...................................................................................................................................... 91
5.1.3.1 Internal Ambient Temperature OTP ......................................................................................... 91
5.1.3.2 Power-Up Sequence .................................................................................................................. 92
iHP Manual 6 | P a g e
iHP Owners Manual
5.1.3.3 INH0/EN0 TTL and INH1/EN1 TTL Function ............................................................................... 92
5.1.3.4 Disable on 5V_STBY Fault .......................................................................................................... 93
5.1.3.5 Rack Synchronized Off ............................................................................................................... 93
5.1.4 Module Section ................................................................................................................................. 94
5.1.4.1 Module Synchronized OFF ........................................................................................................ 95
5.1.4.2 Module Group ........................................................................................................................... 96
5.1.5 Firmware Section .............................................................................................................................. 96
5.1.6 Maintenance Section ...................................................................................................................... 101
5.2 iHP Module User Configurable Parameters ........................................................................................ 102
5.2.1 Module Command 01h: MODULE_OPERATION .............................................................................. 103
5.2.2 Module Command 48h: OV_FAULT_LIMIT_MULTIPLIER ................................................................ 103
5.2.3 Module Command 4Bh: UV_FAULT_LIMIT_MULTIPLIER ................................................................ 103
5.2.4 Module Command 4Dh: OC_FAULT_LIMIT_MULTIPLIER ................................................................ 104
5.2.5 Module Command 52h: OC_RESPONSE_TYPE ................................................................................ 104
5.2.6 Module Command B7h: SET_IO_ACTIVE_LEVEL_LOGIC ................................................................. 105
5.2.7 Module Command B1h: VREF ......................................................................................................... 105
Module Group .............................................................................................................................................. 107
6.1 Group Device Address ......................................................................................................................... 107
6.2 Group Initialization at Start up ............................................................................................................ 108
6.3 Module within a Group Read/Write Command .................................................................................. 108
6.4 Group Write Command ....................................................................................................................... 108
6.5 Accepted Group Commands using Group Device Address ................................................................. 109
6.6 Accepted Group Commands using ISOCOMM Device Address .......................................................... 109
6.7 Group Status and Reporting ................................................................................................................ 109
Multi-Rack Operation ................................................................................................................................... 112
7.1 During Turn-On.................................................................................................................................... 113
7.2 During Turn-off .................................................................................................................................... 114
7.3 From Module Standby Activated to Module Standby De-activated. .................................................. 114
7.4 From Fault to Fault Clear. .................................................................................................................... 114
7.5 Broadcast Command on Multi Rack Operation .................................................................................. 114
Faults and Output Recovery. ....................................................................................................................... 116
8.1 Module Fault ....................................................................................................................................... 116
iHP Manual 7 | P a g e
iHP Owners Manual
8.2 Module Clear Fault and output Recovery ........................................................................................... 117
8.3 PFC Fault .............................................................................................................................................. 118
8.4 PFC Clear Fault and Output Recovery ................................................................................................. 120
8.5 ISOCOMM Fault ................................................................................................................................... 121
8.6 ISOCOMM Clear Fault and Output Recovery ...................................................................................... 122
Accepted iHP Configuration ......................................................................................................................... 124
9.1 Module Stand-Alone Configuration .................................................................................................... 124
9.2 Parallel Configuration .......................................................................................................................... 125
9.3 Series Configuration ............................................................................................................................ 126
Troubleshooting ....................................................................................................................................... 129
Appendix A – LED ................................................................................................................................................ 131
Appendix B –COMMAND .................................................................................................................................... 132
B.1 PFC Command ........................................................................................................................................... 132
B.2 MODULE Command ................................................................................................................................... 136
B.3 ISOCOMM Command ................................................................................................................................ 162
B.4 Data Format: Linear ................................................................................................................................... 172
B.5 Data Format: Direct ................................................................................................................................... 174
Appendix C – MODULE REGISTER MFR_REG (FAE and VAR only) ....................................................................... 176
Appendix D – FAE and VAR Only ......................................................................................................................... 189
iHP Manual 8 | P a g e
iHP Owners Manual
List of Figures
Figure 1-1 External dimensions of iHP system ..................................................................................................... 17
Figure 1-2 Front panel of iHP system .................................................................................................................... 18
Figure 1-3 Rear Panel of iHP system ..................................................................................................................... 18
Figure 2-1 Package contents of typical iHP system .............................................................................................. 19
Figure 2-2 Lifting hole location for the power system .......................................................................................... 21
Figure 2-3 Module insertion into system .............................................................................................................. 22
Figure 2-4 Blank panel covering for rear of system .............................................................................................. 23
Figure 2-5 Rear panel showing AC wiring and ground terminal ........................................................................... 25
Figure 2-6 AC terminals and ferrule diagram ........................................................................................................ 26
Figure 2-7 DC output wiring diagram .................................................................................................................... 26
Figure 2-8 Output modules in parallel with busbars............................................................................................. 28
Figure 2-9 Output modules in series and parallel ................................................................................................. 29
Figure 2-10 Blocking diode for use when connecting modules in parallel ........................................................... 30
Figure 2-11 Antiparallel diode for use when connecting modules in series ......................................................... 31
Figure 3-1 12kW and 24kW ISOCOMM Section .................................................................................................... 32
Figure 3-2 24kW iHP rack internal communication architecture .......................................................................... 33
Figure 3-3 12kW iHP rack internal communication architecture .......................................................................... 34
Figure 3-4 iHP system connected directly to the PC (static IP) ............................................................................. 37
Figure 3-5 IHP system connected using a router or switch .................................................................................. 38
Figure 3-6 Multiple iHP systems connected to PC via a router or switch ............................................................. 39
Figure 3-7 Terminating resistors required for RS485 interface ............................................................................ 40
Figure 3-8 Terminating resistors are required for CAN interface ......................................................................... 41
Figure 4-1 AC Input connections and AC input rating label location .................................................................... 43
Figure 4-2 Front Panel Power LED ......................................................................................................................... 44
Figure 4-3 Module J1 and J2 signal connections for controlling the modules ...................................................... 47
Figure 4-4 Isolated output inhibit circuits to externally inhibit the module. ........................................................ 51
Figure 4-5 Isolated Output Enable to externally Enable module. ......................................................................... 52
Figure 4-6 Isolated fault signal to signal a module fault condition ....................................................................... 53
Figure 4-7 Examples of star connections for remote sensing ............................................................................... 55
Figure 4-8 Location of external shunt and external shunt sense lines ................................................................. 56
Figure 4-9 Communication ports on back panel of iHP rack ................................................................................. 58
Figure 4-10 RS485/CAN Port pinout ...................................................................................................................... 59
Figure 4-11 Dsub9 Port pinout .............................................................................................................................. 60
Figure 4-12 Possible circuits configuration for ACOK functionality ...................................................................... 63
Figure 4-13 Possible circuits configuration for DCOK functionality ...................................................................... 64
iHP Manual 9 | P a g e
iHP Owners Manual
List of Tables
Table 1-1 ................................................................................................................................................................ 11
Table 1-2 ................................................................................................................................................................ 12
Table 1-3 ................................................................................................................................................................ 13
Table 1-4 ................................................................................................................................................................ 14
Table 1-5 ................................................................................................................................................................ 15
Table 1-6 ................................................................................................................................................................ 16
Table 2-1 ................................................................................................................................................................ 24
Table 2-2 ................................................................................................................................................................ 25
Table 2-3 ................................................................................................................................................................ 27
Table 2-4 ................................................................................................................................................................ 29
Table 2-5 ................................................................................................................................................................ 31
Table 3-1 ................................................................................................................................................................ 35
Table 3-2 ................................................................................................................................................................ 36
Table 4-1 ................................................................................................................................................................ 45
Table 4-2 ................................................................................................................................................................ 46
Table 4-3 ................................................................................................................................................................ 47
Table 4-4 ................................................................................................................................................................ 48
Table 4-5 ................................................................................................................................................................ 49
Table 4-6 ................................................................................................................................................................ 49
Table 4-7 ................................................................................................................................................................ 50
Table 4-8 ................................................................................................................................................................ 53
Table 4-9 ................................................................................................................................................................ 56
Table 4-10 .............................................................................................................................................................. 57
Table 4-11 .............................................................................................................................................................. 57
Table 4-12 .............................................................................................................................................................. 59
Table 4-13 .............................................................................................................................................................. 61
Table 4-14 .............................................................................................................................................................. 62
Table 4-15 .............................................................................................................................................................. 65
Table 4-16 .............................................................................................................................................................. 66
Table 4-17 .............................................................................................................................................................. 69
Table 4-18 .............................................................................................................................................................. 73
Table 4-19 .............................................................................................................................................................. 76
Table 4-20 .............................................................................................................................................................. 79
Table 4-21 .............................................................................................................................................................. 82
iHP Manual 10 | P a g e
iHP Owners Manual
Overview
1.1 General Description
The Intelligent High Power (iHP) series is an addition to Artesyn’s existing breadth of configurable AC to DC
power supply products. The iHP series offers the highest power and voltage rating in the configurable family
and provides the most flexible and universal solutions for medical and industrial applications. The iHP series
provides accuracy, resolution, and stability as either a programmable voltage or current source. The basic
modular concept consists of an iHP rack into which iHP modules are inserted. The rack is a Power Factor
corrected front-end converting worldwide standard AC input voltages into a regulated high voltage DC (HVDC)
output. The pluggable modules provide an extended range of voltage and current combinations converting
the HVDC input into programmable 3KW increments of output power. iHP output modules are configured into
a power system by plugging the modules into one of two different standard 19” AC-HVDC racks. One rack
houses up to four modules (12KW) and the other rack up to eight modules (24KW). Provisions are made for up
to six racks to be connected and controlled in parallel.
Safety approvals secured by Artesyn eliminate the need for an isolation transformer in medical equipment.
The iHP system also has industrial safety approvals, including compliance to the SEMI F47 standard for
semiconductor processing equipment.
The iHP series offers developers either an analog or digital interface to their system, supporting standard
communications protocols, including CANbus, Ethernet, and RS485. Digital control enables the use of
Artesyn’s high-level PowerPro software graphical user interface (GUI) to control and monitor all functions on
one or multiple iHP systems. The PowerPro GUI also incorporates graphical script creation that allows users to
write their own process control routines.
The iHP series offers efficient power factor correction (PFC) and low total harmonic distortion (THD) over a
wide range of loads. It uses a multi-phase continuous mode boost PFC architecture, resulting in ripple current
cancellation that offers lower EMI and extends the life of electrolytic capacitors.
Users can configure and customize the iHP modules to fit exact applications requirements. A qualified service
personnel can configure the iHP rack for single or three phase inputs. The modules can be connected in series
or parallel, while achieving accurate voltage and current sharing. Using grouping commands, modules in
parallel or series can be controlled as one single output. For specific types of load applications, the iHP system
can be programmed to three different compensation configurations including resistive load, capacitive load
and LED load. The LED load compensation opens new applications for large horticulture farms that require
high voltage for many LED strings tied in series.
1.2 Operational Overview
The iHP system is designed to be configurable to meet varied design requirements. The number of
configurable parameters is extensive and access to the parameters is via a computer interface instead of the
front panel. Before operating the supply, it is important that communication between a computer and the
supply be established and the supply operational parameters be configured for the intended application.
iHP Manual 11 | P a g e
iHP Owners Manual
The simplest way to get started is to use the Power Pro Connect Module (PPCM) to establish a link to the
supply. The PPCM allows the user to quickly establish a connection with the power supply with a Web based
GUI and set up the power supply. The configuration of the supply can be set up to run autonomously when
powered on, controlled via rear panel digital and analog input and outputs, or actively controlled via the
PPCM.
For more advanced users developing their own software control, the PPCM is not required and the supply can
be directly interfaced via the users preferred standard communications protocols, including CANbus, Ethernet
and RS485.
1.3 Specification Summary
Tables 1-1 and Table 1-2 below summarize the 24K and 12K input parameters, followed by Table 1-3 outlining
the general Module specifications
Table 1-1
iHP24 Electrical Specifications
Input Parameter
19” Rack 24 KW strapped as 3-phase
380/480 Vac Nominal (iHP24H3A/L)
19” Rack 24 KW strapped as 3-phase
208/240 Vac Nominal (iHP24L3A/L)
Input range
342 Vac to 528 Vac
(Nominal rating 380/480 Vac)
187.5 Vac to 264 Vac
(Nominal rating 208/240 Vac)
Number of phases
3-phase (Wye or Delta) 4 wire total (3-phase and 1 protective earth ground)
Frequency
47-63 Hz
Phase detection
Loss of phase will inhibit unit off. Housekeeping/comms must continue with phase loss.
Max current/phase
51 A @ 342 Vac
40 A @ 432 Vac
84 A @ 187.5 Vac
Under voltage detection
Nominal input locked on at turn-on. Under voltage shutdown at 15% below nominal.
Turn-on at 12% below nominal. Not to interfere with SEMI F47 specs.
Current inrush
2.5 x Max input current
Power factor
> 0.98 @ full load and nominal line
Harmonic distortion
THD < 13%, PWHD < 22% (refer to EN 61000-3-12)
Line interruption
Designed to meet SEMI F47-0706, 53, 58, S14 at nominal input voltages
Input leakage current
< 2.5 mA (Note for fixed condition 3rd edition leakage = 5 mA)
Power switch
Front panel power switch provided
Input protection
Internal fuse (not user serviceable)
Input overvoltage protection
Up to 115% of nominal input shall not damage unit
Phase imbalance
≤ 5%
Rack parallel
Up to 6 racks (144 KW)
Efficiency
> 90% @ 3P 380 Vac full load
> 91% @ 3P 480 Vac full load
> 90% @ 3P 208 Vac full load
> 91% @ 3P 240 Vac full load
Standby voltage
5 V
Standby regulation
4.75 - 5.25 V
Standby max current
1 A
iHP Manual 12 | P a g e
iHP Owners Manual
Table 1-2
iHP12 Electrical Specifications
Input
Parameter
19” Rack 12 KW
strapped as 1-phase
200/220/230/240 Vac
Nominal (iHP12L1A)
19” Rack 12 KW strapped as 3-phase
200/208/240 Vac Nominal (iHP12L3A)
19” Rack 12 KW strapped as 3-phase
380/480 Vac Nominal (iHP12H3A)
Input range
180 Vac to 264 Vac
(Nominal rating
200/220/230/240 Vac)
180 Vac to 264 Vac (Nominal rating
200/208/240 Vac)
342 Vac to 528 Vac (Nominal rating
380/480 Vac)
Number of
phases
1-phase 3-wire total (2-
phase and 1 protective
earth ground)
3-phase (Wye or Delta) 4-wire total (3-phase and 1 protective earth ground)
Frequency
47-63 Hz
Phase
detection
NA
Loss of phase will inhibit unit off. Housekeeping/comms must continue with phase loss.
Max
current/phase
75 A @ 180 Vac
44 A @ 180 Vac
23 A @ 342 Vac
19 A @ 432 Vac
Under voltage
detection
Nominal input locked on at turn-on. Under voltage shutdown at 15% below nominal. Turn-on at 12% below
nominal. Not to interfere with SEMI F47 specs.
Current inrush
2.5 x Max input current
Power factor
> 0.99 @ full load and
nominal line
> 0.98 @ full load and nominal line
Harmonic
distortion
THD < 13%, PWHD < 22% (refer to EN 61000-3-12)
Line
interruption
Designed to meet SEMI F47-0706, 53, 58, S14 at nominal input voltages
Input leakage
current
< 1.25 mA
<2.5 mA
Power switch
Front panel power switch provided
Input
protection
Internal fuse (not user serviceable)
Input
overvoltage
protection
Up to 115% of nominal input shall not damage unit
Phase
imbalance
NA
< 5%
< 5%
Rack parallel
Up to 6 racks (72 KW)
Efficiency
> 91% @ 1P 240 Vac
full load
> 90% @ 1P 208
Vac/200 Vac full load
> 91% @ 3P 240 Vac full load
> 90% @ 3P 208 Vac/200 Vac full load
> 90% @ 3P 380 Vac full load
> 91% @ 3P 480 Vac full load
Standby
voltage
5 V
Standby
regulation
4.75 - 5.25 V
Standby max
current
1 A
iHP Manual 13 | P a g e
iHP Owners Manual
Table 1-3
OUTPUT – General Specifications
Parameter
MODULE CODE
SL
SQ
SW
S8
S1
SA
S2
# Outputs
1
1
1
1
1
1
1
Nominal O/P (V)
12.0 V
24.0 V
48.0 V
80.0 V
125.0 V
200.0V
250.0 V
Max Power (W)
2400 W
2880 W
3000 W
3000 W
3000 W
3000 W
3000 W
O/P Current
Range (A)
0.0 A - 200 A
0.0 A - 120 A
0.0 A - 62.5 A
0.0 A - 37.5 A
0.0 A -24 A
0.0 A -15 A
0.0 A -12 A
Power Density
(W/cu-in)
32.5
39.0
40.6
40.6
40.6
40.6
40.6
Efficiency (%)
93.5
93.5
93.5
93.5
93.5
93.5
93.5
Module Input
Voltage
400 V
Module
Operating Temp
-0 °C to +65 °C; Baseplate Temp TBD
Series Operation
12V, 24V & 48V modules can be connected in series up to 300 V for Medical
12V, 24V & 48V modules can be connected in series up to 400 V for ITE
80V, 125V, 200V & 250 V modules can be connected in series up to 800 V for Medical
80V, 125V, 200V & 250 V modules can be connected in series up to 1000 V for ITE
Parallel
Operation
Up to 8 modules can be paralleled in 1 rack, with up to 6 racks connected in parallel. Single Wire Parallel
connection will be provided as part of configuration
iHP Manual 14 | P a g e
iHP Owners Manual
1.3.1 Environmental
Table 1-4 outlines the operating and non-operating environmental requirements.
Table 1-4
Environmental Specifications
Operating Conditions
ALL MODELS (Unless Otherwise Specified)
Operating Temperature
0 °C to +50 °C at 100% rated load.
Storage Temperature
-40 °C to +85 °C. For Liquid Cooled models, liquid must be drained before storage
Operating Humidity
20% - 90% non-condensing
Storage Humidity
10% - 95% non-condensing
Operating Altitude
Up to 9,842 feet above sea level (3,000 meters)
Storage Altitude
Up to 30,000 feet above sea level (9,144 meters)
Vibration
Operating Sinusoidal Vibration MIL-STD-810G Method 528 Procedure I (Type 1): NEBS Office
Vibration Environment, Alternate Procedure Operating Random Vibration: IPC-9592B Class 1
Non-Operating Vibration (Packaged): IPC-9592B Class 1; MIL-STD-810G, Method 514.6, Procedure 1,
Category 7, Table 514.6C-VII General Exposure
Shock
MIL-STD-810G Method 516.6 Procedures I, II, IV, VI
Shipping and Handling
NSTA for <100 lbs.; MIL-STD-2073-1 >100 lbs.
Cooling and Audible Noise
<65 dBA with 80% load @ 30 °C at nominal input voltage with Smart Fan algorithm to be optimized
based on module and rack thermal sensors. When modules are inhibited via software control, the
fan speed is reduced to idle and acoustic noise is <46 dBA. With modules off via front panel switch
fans are at idle for 1 min, and off for 9 min.
Ingress Protection
Fan Cooled = IP20
Pollution Degree
2
RoHS Compliance
Yes
1.3.2 Electrical Specifications
The electrical specification for each module type is dependent on if the module is operating in voltage mode or
current mode. Table 1-5 lists the electrical specifications when operating in voltage mode and Table 1-6 lists
the specifications when operating in current mode.
iHP Manual 15 | P a g e
iHP Owners Manual
Table 1-5
OUTPUT – Module in Voltage Source Mode
Voltage Source
MODULE CODE
SL
SQ
SW
S8
S1
SA
S2
Nominal
Output (V)
12
24
48
80
125
200
250
Setting
Range (V)
0.6 V - 14.4 V
1.2 V - 28.8 V
2.4 V - 57.6 V
4.0 V - 96.0 V
6.25 V - 150.0 V
10.0 V – 240.0 V
12.5 V - 300.0 V
Low Frequency
RMS Ripple (mV)
24
48
96
160
250
500
500
Line
Regulation (mV)
12
24
48
80
125
200
250
Load
Regulation (mV)
24
48
96
160
250
400
500
P-P Ripple (mV)
60
120
240
400
625
1250
1250
Drift
(Temp Stability)
±0.05% of Iout Rated over 8 hours, after 30-minute warm up, constant Line, Load and Temp
Temp
Coefficient
(PPM/°C)
200
Pgm
Accuracy (mV)
Digital: 0.1% of Nominal Output Voltage; Analog: 1.0% of Nominal Output Voltage
Pgm
Resolution (mV)
SL=TBD; SQ=1; SW=2; S8=8; S1=6; SA=21; S2=21
Meas
Accuracy (mV)
0.2% + 0.2% of Nominal Output Voltage
Meas
Resolution
SL=TBD; SQ=1; SW=2; S8=8; S1=6; SA=21; S2=21
Transient
Response
Max 5.0% deviation from current set point must recover within 1mS for a 50% step load.
Current Sense
Method
Internal Shunt; External Shunt can be used for better temperature stability.
iHP Manual 16 | P a g e
iHP Owners Manual
Table 1-6
OUTPUT – Module in Current Source Mode
Current Source - Programmable load compensation available for resistive and inductive loads; capacitive load
applications; and LED drive applications
MODULE CODE
SL
SQ
SW
S8
S1
SA
S2
Nominal Output
(V)
12
24
48
80
125
200
250
Setting Range
(A)
0.0 A - 200 A
0.0 A - 120 A
0.0 A - 62.5 A
0.0 A - 37.5 A
0.0 A - 24 A
0.0 A – 15 A
0.0 A - 12 A
RMS Ripple
(mA)
200
120
62.5
37.5
24
40
12
Line Regulation
(mA)
200
120
125
93.75
48
50
24
Load Regulation
(mA)
800
480
250
150
96
56
48
P-P Ripple (mA)
N/A
Drift (Temp
Stability)
±0.05% of Iout Rated over 8 hours, after 30-minute warm up, constant Line, Load and Temp
Temp Co-
efficient (PPM/°C)
SL, SQ = 300 PPM; All other modules are 200 PPM. Temp Co-efficient at rack level is [Temp Co-efficient (module level)] + [4500 PPM of
Iout-max]
Pgm Accuracy
(A)
0.7% digital, 1.3% analog of rated output max
Pgm Resolution
(mA)
79.2
26.4
13.2
10
5.2
2.6
2.6
Meas Accuracy
0.7% + 0.7% of Rated Output Max
Meas
Resolution
79.2
26.4
13.2
10
5.2
2.6
2.6
Transient
Response
0-63% output current change in 7.5 mSec, residual value 1%, settling time 35 mSec
Current Sense
Method
Internal Shunt / External Shunt
iHP Manual 17 | P a g e
iHP Owners Manual
1.3.3 Mechanical Outline
The external dimensions of the iHP system are shown in Figure 1-1.
Figure 1-1 External dimensions of iHP system
1.3.4 Front and Rear Panel
Figures 1-2 and 1-3 display the front and rear panels of iHP system. The user interface and connectors are
shown.
Note: Please Refer to Appendix A for the Front Panel LED response.
iHP Manual 18 | P a g e
iHP Owners Manual
Figure 1-2 Front panel of iHP system
Figure 1-3 Rear Panel of iHP system
iHP Manual 19 | P a g e
iHP Owners Manual
Installation
2.1 Inspection of Packaging and IHP System
The iHP system is inspected before packaging and is shipped in containers designed to minimize damage
during transport. However, damage may still occur during transportation. Inspect the power supply and
packaging upon receipt. If damage is observed that indicates the iHP system was dropped or subject to other
damage, immediately notify the responsible shipping company.
2.2 Package Contents
Figure 2-1 displays the typical contents of an iHP system.
Figure 2-1 Package contents of typical iHP system
iHP Manual 20 | P a g e
iHP Owners Manual
The contents of the package may vary depending on the models ordered and configuration. Carefully unpack
the containers and confirm contents as per below:
Minimum list of contents:
iHP Rack
iHP Modules (quantity and model based on configuration ordered)
iHP Operating Manual
Optional Accessories
Filler Plate (for unused Module slots)
Module J1 Wire Assemblies
Module J2 Wire Assemblies
DB9 Cable Kit
Output Safety Covers
Paralleling or Series Busbars
RS485/CAN Bus Terminator
2.3 Installation Requirements
2.3.1 Location Requirements
The location should be able to support the full weight of the iHP system.
The iHP system is designed for horizontal mounting. Contact customer service if other mounting
orientation is desired.
iHP air-cooled units should be installed in a protected environment. Exposure to corrosive or
conductive material can result to damage.
iHP air-cooled units should have sufficient ventilation. The front and rear surfaces of the iHP system
are recommended to have a minimum clearance of 2” from any airflow blockage.
The airflow is front to back with cool airflow entering the front panel and exhausting the rear panel.
There is no airflow through the top and bottom of supply. No clearance is required above or below the
supply and multiple supplies can be stacked without clearance requirements above or below the
supply.
Install in a location that will not exceed 50°C operating ambient temperature. For system enclosures,
the front panel (air inlet) should receive fresh air.
iHP Manual 21 | P a g e
iHP Owners Manual
2.3.2 Lifting Provision
Warning! - 24KW iHP models require a minimum two-man lift.
The iHP rack has been provided with lifting holes which can accommodate carabiners. Recommended
carabiner size and location of lifting holes are shown in Figure 2-2.
Figure 2-2 Lifting hole location for the power system
Caution! - The front panel handles are not designed to carry the whole weight of iHP.
2.3.3 Mounting
The iHP rack is designed to fit inside a 19-inch rack. Recommended rack depth is at least 33 inches from front
panel to back. The front panel cannot support the weight of the supply. Use appropriate L-brackets or an
equipment tray, which can support the weight of the iHP system.
The iHP rack also has mounting screw holes on the side panels, which can be used for other mounting
configurations. The side panel mounting holes when fully utilized are sufficient to support the weight of the
rack and modules. It is designed for metric M5 screws and has 6mm maximum screw penetration. See Section
1.3.3, Figure 1-1 for the location of the mounting holes.
2.4 Inserting Modules
Figure 2-3 shows how to insert the iHP modules into an iHP rack.
iHP Manual 22 | P a g e
iHP Owners Manual
Caution! - Observe proper orientation of the module during insertion (output busbars at the
bottom) to prevent damage to the module and rack connectors.
Note: The input AC should be turned off for 5 minutes before inserting or removing modules from the rack.
1. Insert, slide, and push the modules until its back panel is flushed to the back of the rack.
2. Tighten the module locking screws.
3. Attach blank fillers to all empty slots as shown in Figure 2-4 of the rack to ensure proper airflow
distribution within the rack.
Figure 2-3 Module insertion into system
iHP Manual 23 | P a g e
iHP Owners Manual
Figure 2-4 Blank panel covering for rear of system
2.5 Input and Output Wiring
Warning! - Disconnect AC power before wiring the iHP system. Due to possible remote
operation, it is important to disconnect power at AC breaker before wiring the output
connections.
Table 2-1 shows the recommended cable ampacities from the National Electrical Code. Local regulations may
differ and should be followed when wiring the system.
iHP Manual 24 | P a g e
iHP Owners Manual
Table 2-1
Size
Temperature Rating
AWG
60°C
75°C
90°C
Types RUW, T, TW, UF
Types FEPW, RHW, RH, RUH,
THW, THWN, XHHW, ZW
Types TA, TBS, SA, AVB, SIS,
FEP, FEPB, RHH, THHN, XHHW
14
20
20
25
12
25
25
30
10
30
35
40
8
40
50
55
6
55
65
75
4
70
85
95
3
85
100
110
2
95
115
130
1
110
130
150
1/0
125
150
170
2/0
145
175
195
3/0
165
200
225
4/0
195
230
260
2.5.1 AC Input Wiring
The iHP system is designed for permanent connection to the AC power with a readily accessible safety
disconnect device.
Warning! - A safety ground wire must be connected to the unit through the chassis ground
stud show in Section 1.2.4. An appropriate ring terminal for M6 stud and the wire gauge
must be used.
The input configuration should be confirmed prior to wiring any AC power into iHP system. The figure below
shows the location of the label to confirm the AC configuration.
iHP Manual 25 | P a g e
iHP Owners Manual
Figure 2-5 Rear panel showing AC wiring and ground terminal
Warning! - Applying a mismatched AC input voltage to what is indicated in the AC input
rating label can cause damage to the power supply and voids the warranty.
The rated input current and AC connection varies among different models. Table 2-2 shows the available
models and rated input current.
Table 2-2
iHP Rack Model Number
Rated Current
Wires to Connect
73-959-0001
41A
L1, L2, L3 and PE
73-959-0001L
75A
L1, L2, L3 and PE
73-958-0001
21A
L1, L2, L3 and PE
73-958-0001L
40A
L1, L2, L3 and PE
73-958-0001S
68A
L1, L2 and PE
iHP Manual 26 | P a g e
iHP Owners Manual
AC power should be wired to L1, L2, and L3 for 3-phase input and L1 & L2 for single phase of the AC Input
Terminal show in the Figure 2-5. Follow the torque requirements as per the figure. Wire ferrules as shown in
Figure 2-6 can be utilized, but are not required.
Recommended input AC wire ferrule:
Manufacturer: Panduit, Manufacturer PN: FSD85-16-L
Manufacturer: Phoenix Contact, Manufacturer PN: 3200577
Figure 2-6 AC terminals and ferrule diagram
2.5.2 DC Output Wiring
Wire output cables to each iHP module using M8 ring lugs, bolts, and nuts as shown in the Figure 2-7. The
module output busbars are color coded with RED for positive (+) and BLUE for negative (-).
Figure 2-7 DC output wiring diagram
The module types and maximum currents are listed in Table 2-3.
iHP Manual 27 | P a g e
iHP Owners Manual
Table 2-3
Model Number
Model Code
Nominal Voltage
Rated Current
73-936-0012
SL
12V
200A
73-936-0024
SQ
24V
120A
73-936-0048
SW
48V
62.5A
73-936-0080
S8
80V
37.5A
73-936-0125
S1
125V
24A
73-936-0200
SA
200V
15A
73-936-0250
S2
250V
12A
2.5.3 Remote Sense Wiring
The iHP system uses remote sense to regulate the voltage drops in the system. The module has a negative
(V_SNS-) and a positive (V_SNS+) remote sense to compensate for line drops. Although not needed for
operation, the remote sense wires must be connected to the desire regulated point to be able to meet the
specification regulation limits. Refer to Section 4.2.1 for the location of the remote sense signals in the module
connector J2.
2.5.4 Parallel Module Connection
Same module models can be connected in parallel for higher current applications. A paralleling busbar can be
used to parallel the output modules positive (+) and negative (-) terminals as shown in Figure 2-8. M8 bolt and
nuts should be used. When ordered as a system, the required busbars will be provided to configure the system
as ordered. If reconfiguring a system and a busbar is required for reconfiguration, contact the factory or sales
to obtain the needed busbar.
iHP Manual 28 | P a g e
iHP Owners Manual
Figure 2-8 Output modules in parallel with busbars
2.5.5 Current Share Signal Wiring
For modules in constant voltage operation mode, the current share signals of all modules connected in parallel
should be wired together. All ISHARE and D_RTN should be connected. Refer to Section 4.2.1 for the location
of the ISHARE and D_RTN signals in the module connector J2.
2.5.6 Series Modules Connection
Same model modules can be connected in series to achieve higher output voltage. A series connecting busbar
can be used with M8 bolts and nuts as show in the Figure 2-9. When ordered as a system, the required
busbars will be provided to configure the system as ordered. If reconfiguring a system and a busbar is required
for reconfiguration, contact the factory or sales to obtain the needed busbar.
iHP Manual 29 | P a g e
iHP Owners Manual
Figure 2-9 Output modules in series and parallel
Please see Table 2-4 as a guide for what modules can be connected in series and combined voltage limitation
per safety isolation compliance.
Table 2-4
Model Number
Model
Code
Module Nominal
Voltage
Safety Compliance
Maximum Total
Voltage Allowed
73-936-0012
73-936-0024
73-936-0048
SL
SQ
SW
≤ 48V
Medical 2MOPP*
Medical 2MOOP**, ITE
300V
400V
73-936-0080
73-936-0125
73-936-0200
73-936-0250
S8
S1
SA
S2
≥ 80V
Medical 2MOPP
Medical 2MOOP
Medical 2MOOP
ITE
600V
800V
800V
1000V
Note: * - 2MOPP or 2 x MOPP (Means of Patient Protection)
** - 2MOOP or 2 x MOOP (Means of Operator Protection)
2.5.7 Output Blocking Diode and Antiparallel Diode Recommendation
iHP Manual 30 | P a g e
iHP Owners Manual
The iHP modules can be used in a redundant parallel system by connecting the outputs together via OR-ing
diodes. For good regulation the remote sense connections must be made after the OR-ing diode at the same
point on the busbar or load. The remote sense leads should be the same length for each power supply and a
twisted pair should be used for best noise immunity. The current share lines between the power supplies
should be connected as shown in Figure 2-10.
Figure 2-10 Blocking diode for use when connecting modules in parallel
An antiparallel diode should be connected across each module’s terminal to prevent sinking of current into
one module when it is OFF while the others are ON. The diode should be capable of carrying the maximum
current and the forward voltage (Vf) drop should be lower than what is in the table below.
iHP Manual 31 | P a g e
iHP Owners Manual
Table 2-5
Model
Min Voltage
Rating (V)
Min Current
Rating (A)
Maximum Vf
Use below recommended device or its equivalent
12V
45
300
0.9V @ 160A
(Tj = 125degC)
IXYS: DSS 2x160-0045A (45V 2x160A)
24V
45
200
0.9V @ 160A (Tj = 125degC)
IXYS: DSS 2x160-0045A (45V 2x160A)
32V
100
120
0.7V @ 80A (Tj = 125degC)
STMicroelecronics: STPS160H100TV (100V 2x80A)
48V
100
120
0.7V @ 80A (Tj = 125degC)
STMicroelecronics: STPS160H100TV (100V 2x80A)
80V
150
80
1.5V @ 50A (Tj = 125degC)
STMicroelecronics: STTH10002TV1 (200V 2x50A)
125V
200
50
1.5V @ 50A (Tj = 125degC)
STMicroelecronics: STTH10002TV1 (200V 2x50A)
200V
400
30
1.5V @ 60A (Tj = 125degC)
STMicroelecronics: STTH120R04TV1 (400V 2x60A)
250V
400
30
1.5V @ 60A (Tj = 125degC)
STMicroelecronics: STTH120R04TV1 (400V 2x60A)
For series connection, the remote sense for each module should be connected to its output busbar instead of
the output load.
Figure 2-11 Antiparallel diode for use when connecting modules in series
iHP Manual 32 | P a g e
iHP Owners Manual
Digital Communication
Digital communication is necessary to setup and operate the iHP system. Digital communication will be used to:
Read the configuration setting of the iHP
Change the configuration setting of the iHP
Voltage, current, temperature, and power reporting
Status reporting
SW updates for module, PFC, and ISOCOMM
Available user digital communications interfaces for the iHP are CAN, RS485, and Ethernet. The connection
ports are shown in Figure 3-1. Ethernet (UDP protocol), RS485 (custom RS485 protocol), and CAN (custom CAN
protocol) protocol specifications are in a separate document.
Communication with the iHP system is controlled via the iHP ISOCOMM (ISOlated COMMunication) section of
the supply. All commands are sent to and from the iHP ISOCOMM via the digital communication link. Once a
command has been sent to the iHP ISOCOMM, ISOCOMM will handle the sending of the information to the
internal PFC section and installed modules. The ISOCOMM functions as a bridge between iHP internal
communication and iHP external communication.
Inside the iHP rack, there is an Internal Communication Bus. The installed modules, PFC (Primary Side), and
ISOCOMM are all connected to this Internal Communication Bus, but are electrically isolated from each other
per safety requirements. ISOCOMM manages the internal communications and external communication of the
iHP. Once ISOCOMM receives a command from the user, ISOCOMM will transmit the command to the module
or PFC section of the iHP. If the user needs data from a module or PFC device, the module or PFC device will
transmit data to the ISOCOMM and ISOCOMM will be the one to send data to the user.
Figure 3-1 12kW and 24kW ISOCOMM Section
iHP Manual 33 | P a g e
iHP Owners Manual
3.1 iHP Digital Communication Identifier
To communicate to the iHP, the user needs to know the iHP address and the specific device inside the iHP
system in which the user needs to communicate. ISOCOMM, installed modules and PFC devices function
independently inside an iHP system and each device has its own device address as shown in Figure 3-2 and 3-3.
Figure 3-2 24kW iHP rack internal communication architecture
iHP Manual 34 | P a g e
iHP Owners Manual
Figure 3-3 12kW iHP rack internal communication architecture
3.1.1 iHP Address
Each iHP system will have a specific address for digital communication. The address will be used to
communicate from the PC/Laptop to the iHP system. The iHP address is dependent on the mode of
communication.
Ethernet Address – depends on the configuration of iHP. IP setting can be Static or DHCP. For Static IP, this
will need to be set to an unassigned IP address by the user before integration into a system. For DHCP, the
router will assign an open IP address.
CAN/RS485 – CAN and RS485 communication shares the same address from 0 to 5. When using multiple iHP
systems, the address will need to be set before integrating with other iHP systems to avoid address conflicts.
The IP setting and CAN/RS485 address configuration settings are discussed in more detail in Section 5.1.3.
iHP Manual 35 | P a g e
iHP Owners Manual
3.1.2 Internal Device Address inside iHP
An iHP system is composed of different independent devices (modules and PFC devices). The internal device
address is used to identify the specific device or module group in which user wants to communicate. Please
see below table for the Internal Device Address inside the iHP system.
Table 3-1
iHP Internal Device Address
Device/Group iHP RACK 24kW
Device/Group iHP RACK 12kW
0x00
ISOCOMM
ISOCOMM
0x01 – 0x06
Reserved
Reserved
0x07
PFC1
PFC1
0x08
PFC2
Not Applicable
0x09 – 0x0F
Reserved
Reserved
0x10
Module 1
Module 1
0x11
Module 2
Module 2
0x12
Module 3
Module 3
0x13
Module 4
Module 4
0x14
Module 5
Not Applicable
0x15
Module 6
Not Applicable
0x16
Module 7
Not Applicable
0x17
Module 8
Not Applicable
0x18
Group 1
Group 1
0x19
Group 2
Group 2
0x1A
Group 3
Group 3
0x1B
Group 4
Group 4
0x1C
Group 5
Group 5
0x1D
Group 6
Group 6
0x1E
Group 7
Group 7
Note: Module group configuration is discussed in Section 5.1.5 and module group functionality is discussed in Section 6.
3.2 iHP Commands
The iHP command set is patterned from PMBus, but uses a proprietary transaction protocol. All PFC devices
have a specific set of commands, all module devices have a specific set of commands, and the ISOCOMM
device has a specific set of commands. The PFC command list is in Appendix B.1, the module command list is
in Appendix B.2, and the ISOCOMM command list is in Appendix B.3.
iHP commands can be classified into four groups:
iHP Manual 36 | P a g e
iHP Owners Manual
User Configurable Commands – Commands that can be configured based on the user operation
requirements. The user configurable commands are the commands that can be read or written by the
user.
Notes for Module User Configurable Command:
The user needs to send the save command (Using ISOCOMM command D7h) in order to retain the
command on the next power-up. ISOCOMM command is required to change the module’s D3h
(MODULE_CONFIG), B5h (MODULE_VRISE_TIME), B6h (MODULE_IRISE_TIME). When the user
sends these commands, the setting will be AutoSaved to the module and there is no need to send
a separate save command.
Manufacturer Commands – Commands used by the manufacturer. The user is not allowed to use
these commands.
Read-Only commands – Commands for iHP system reporting and fixed configuration settings. The
user can only read these commands.
Voltage, current, power, and temperature reporting
Status reporting
Fixed configuration settings
Special Command – Commands that have special function in the operation of the iHP system.
3.3 Interval Between User Commands
To communicate properly there should be a time interval between user commands.
Table 3-2
iHP Module Mode in an iHP
Rack
Time Interval between User Command
Ethernet
RS485
CAN
All iHP modules are configured
as Digital Mode
20msec
100msec
TBA
At least one iHP module is
configured as Analog Mode
50msec
100msec
TBA
3.4 Ethernet Communication
The iHP Ethernet connection can support up to 10/100Mbps link speed. The iHP IP setting can be configured
to static IP or Dynamic Host Configuration Protocol (DHCP). By default, the Ethernet communication is set to
DHCP, which requires connection with a router to assign an IP address.
If a router is not being used, the iHP will not have an IP address to allow communication, so the user will need
to use the LAN RESET button to set the iHP to known state, which is static IP with IP address of 192.168.2.100.
iHP Manual 37 | P a g e
iHP Owners Manual
The iHP rack can be connected to a PC directly using the static IP setting. When using the iHP system with
static IP mode, the user computer may need to have a static IP as well to communicate. Details on setting the
IP configuration is discussed in Section 5.1.3. Figure 3-4 shows an example of connecting directly to the iHP
system using a static IP.
If the user has forgotten the Ethernet setting, the user can push the LAN RESET button to reset the Ethernet.
The LAN RESET button will reset the Ethernet connection to a known state, which is static IP with the IP
address of 192.168.2.100.
Figure 3-4 iHP system connected directly to the PC (static IP)
iHP Manual 38 | P a g e
iHP Owners Manual
If the user’s PC/Laptop needs to connect to the iHP system and the user’s network, the user should use a
router (static IP or DHCP) or switch (static IP) as shown in Figure 3-5.
Figure 3-5 IHP system connected using a router or switch
Up to six iHP systems can be used on the same network at the same time. To communicate using a PC with
multiple iHP systems, the user can use a router (static or DHCP IP) or switch (static IP) as shown in Figure 3-6.
iHP Manual 39 | P a g e
iHP Owners Manual
Figure 3-6 Multiple iHP systems connected to PC via a router or switch
The recommended equipment for communicating with the iHP system via the Ethernet are as follows:
8-pin RJ45 cable
Router or Switch
iHP Manual 40 | P a g e
iHP Owners Manual
3.5 RS485 Communication
An iHP system can support RS485 communication with below settings:
Bits per seconds = 115200
Data bits = 8
Parity = None
Stop bits = One
Flow control = None
RS485/CAN Bus Terminator or 120Ω terminating resistors are required at both end terminals, PC and iHP rack.
For multiple RS485 communication, the terminating resistor should be placed on the iHP rack farthest from the
PC/Laptop.
Figure 3-7 Terminating resistors required for RS485 interface
The recommended equipment for communicating with the iHP system via RS485 are as follows:
USB to 2-Wire RS485 Adapter – COMMFRONT USB-485-1 or equivalent
6-pin RJ11 Connector with Cable
iHP Manual 41 | P a g e
iHP Owners Manual
RS485/CAN Bus Terminator – RJ11 with 120 ohms resistor (ARTESYN P/N: TBD)
3.6 CAN Communication
iHP systems can support CAN communication with 1Mbps baud rate.
RS485/CAN Bus Terminator or 120Ω terminating resistors are required at both end terminals, PC and iHP rack.
For multiple iHP CAN communication, the terminating resistor should be placed on the iHP rack farthest from
the PC/Laptop.
Figure 3-8 Terminating resistors are required for CAN interface
The recommended equipment for communicating with the iHP system via CAN are as follows:
USB to CAN adapter – GRIDCONNECT IPEH-002022 or equivalent
6-pin RJ11 Connector with Cable
iHP Manual 42 | P a g e
iHP Owners Manual
9 Way PCB D-sub Connector Socket & D-sub Connector Back shell
RS485/CAN Bus Terminator – RJ11 with 120 ohms resistor (ARTESYN P/N: TBD)
iHP Manual 43 | P a g e
iHP Owners Manual
Operation
4.1 iHP System Power-up
This section explains the initial power up of iHP units. It is assumed in this section that this will be the first
time the iHP rack and iHP module will be powered up after iHP rack and module was manufactured by Artesyn.
4.1.1 Initial Power-up
Discussed in this section are the iHP rack and iHP module default settings when shipped from Artesyn.
Configure the input and output connections to the iHP rack and iHP modules based on user
requirements. Please follow Section 2 for the installation requirement.
Apply input AC to the iHP rack.
Note: Please follow the allowable input AC parameters located on the AC input rating label of the iHP rack.
Figure 4-1 AC Input connections and AC input rating label location
Upon the application of input AC, the ISOCOMM will undergo boot-up sequence. The fan will momentarily
turn on at full speed and will settle down. The power LED, in the front panel, shown in Figure 4-2, will be
blinking GREEN color during the boot-up sequence. After boot-up sequence, the power LED will be either
steady RED (AC BAD) or steady GREEN (AC OK) depending on the AC power to the iHP rack. For a full list of LED
responses, please refer to Appendix A.
iHP Manual 44 | P a g e
iHP Owners Manual
Figure 4-2 Front Panel Power LED
After about 20secs from the application of input AC, the boot-up sequence should be completed. The iHP rack
will have detected the slot with installed modules and ISOCOMM will be functional. From the factory, when
initially applying input AC, the iHP module outputs will not power-up by default and the user will need to press
the front panel switch. The modules are shipped by Artesyn with Digital Voltage Source (DVS) configuration
and the output voltage will be set to the module’s nominal voltage. The iHP rack and module software
configuration when shipped from Artesyn are listed on the next section.
4.1.2 iHP Module Default Settings
Table 4-1 contains iHP module default settings when shipped from Artesyn. The module command definitions
are in Appendix B.2 Module Command.
iHP Manual 45 | P a g e
iHP Owners Manual
Table 4-1
Command
Parameter
Default Configuration when shipped from Artesyn
User
Configurable
12V Module
24V Module
48V Module
80V Module
125V Module
200V Module
250V Module
Data
Process
Data
Data
Process
Data
Data
Process
Data
Data
Process
Data
Data
Process
Data
Data
Process
Data
Data
Process
Data
01h
MODULE_OPERATION
80h
ON
80h
ON
80h
ON
80h
ON
80h
ON
80h
ON
80h
ON
Yes
24h
VOUT_MAX
023280h
14.4V
046500h
28.8V
08CA00h
57.6V
0EA600h
96V
16E360h
150V
249F00h
240V
2DC6C0h
300V
No
31h
POUT_MAX
1258h
2400W
12D0h
2880W
12EEh
3000W
12EEh
3000W
12EEh
3000W
12EEh
3000W
12EEh
3000W
No
41h
VOUT_OV_FAULT_RESPONSE
80h
*
80h
*
80h
*
80h
*
80h
*
80h
*
80h
*
No
45h
VOUT_UV_FAULT_RESPONSE
80h
*
80h
*
80h
*
80h
*
80h
*
80h
*
80h
*
No
48h
OV_FAULT_LIMIT_MULTIPLIER
2EE0h
120%
2EE0h
120%
2EE0h
120%
2EE0h
120%
2EE0h
120%
2EE0h
120%
2EE0h
120%
Yes
49h
OV_WARN_LIMIT_MULTIPLIER
2904h
105%
2904h
105%
2904h
105%
2904h
105%
2904h
105%
2904h
105%
2904h
105%
Yes
4Bh
UV_FAULT_LIMIT_MULTIPLIER
2134h
85%
2134h
85%
2134h
85%
2134h
85%
2134h
85%
2134h
85%
2134h
85%
Yes
4Ch
UV_WARN_LIMIT_MULTIPLIER
2328h
90%
2328h
90%
2328h
90%
2328h
90%
2328h
90%
2328h
90%
2328h
90%
Yes
4Dh
OC_FAULT_LIMIT_MULTIPLIER
2904h
105%
2904h
105%
2904h
105%
2904h
105%
2904h
105%
2904h
105%
2904h
105%
Yes
4Fh
OT_FAULT1_LIMIT
2EE0h
120oC
2EE0h
120oC
3A98h
150oC
30D4h
125oC
2CECh
115oC
2EE0h
120oC
30D4h
125oC
No
50h
OT_FAULT_RESPONSE
B8h
*
B8h
*
B8h
*
B8h
*
B8h
*
B8h
*
B8h
*
No
51h
OT_WARN1_LIMIT
2328h
90oC
2710h
100oC
30D4h
1250C
2710h
100oC
25C1h
96.65oC
251Ch
95oC
251Ch
95oC
No
52h
OC_RESPONSE_TYPE
00h
*
00h
*
00h
*
00h
*
00h
*
00h
*
00h
*
Yes
B5h
SET_VOLTAGE_RISE_SETTING
00 00h
*
00 00h
*
00 00h
*
00 00h
*
00 00h
*
00 00h
*
00 00h
*
Yes
B6h
SET_CURRENT_RISE_SETTING
00 00h
*
00 00h
*
00 00h
*
00 00h
*
00 00h
*
00 00h
*
00 00h
*
Yes
B7h
SET_IO_ACTIVE_LEVEL_LOGIC
00 02h
*
00 02h
*
00 02h
*
00 02h
*
00 02h
*
00 02h
*
00 02h
*
Yes
B8h
SET_MODULE_LOAD TYPE
00 02h
*
00 02h
*
00 02h
*
00 02h
*
00 02h
*
00 02h
*
00 02h
*
Yes
BAh
ANALOG_FILTER_ENABLE
03h
*
03h
*
03h
*
03h
*
03h
*
03h
*
03h
*
Yes
D3h
MODULE_CONFIG
00h
DVS
00h
DVS
00h
DVS
00h
DVS
00h
DVS
00h
DVS
00h
DVS
Yes
B1h
VREF
12V
24V
48V
80V
125V
200V
250V
Yes
B2h
IREF
200A
126A
65.625A
39.375A
25.2A
15A
12.6A
Yes
E9h
CALIBRATION_DATE
Factory Calibration Date
Yes
**
OT_FAULT1_RECOV
90oC
100oC
85oC
85oC
85oC
90oC
85oC
No
**
OT_WARN1_RECOV
90oC
80oC
85oC
85oC
65oC
85oC
85oC
No
**
OT_FAULT3_LIMIT
120oC
120oC
110oC
95oC
92oC
120oC
125oC
No
**
OT_FAULT3_RECOV
90oC
100oC
85oC
75oC
75oC
90oC
85oC
No
**
OT_WARN3_LIMIT
100oC
100oC
100oC
85oC
75oC
95oC
95oC
No
**
OT_WARN3_RECOV
90oC
80oC
85oC
70oC
55oC
85oC
85oC
No
**
Brick Wall OVP
15.63V
31.3V
64.5V
110V
162V
250V
315V
No
Note: * Bitmapped data, please refer to Appendix B.2 Module Command.
** No assigned command. Parameter is hardcoded in the module firmware.
iHP Manual 46 | P a g e
iHP Owners Manual
4.1.3 ISOCOMM Default Settings
Table 4.2 contains ISOCOMM default settings of the iHP rack when shipped from Artesyn. The ISOCOMM
setting definition is in Section 5.1.
Table 4-2
ISOCOMM WebTool Section
User
Configurable
Parameter
Default Setting when
shipped from Artesyn
User Configurable
NETWORK
DHCP
Disable*
Yes
Static IP Address
192.168.2.100
Yes
CAN/RS485
RACK Address
0
Yes
RACK
Internal Ambient
Temperature OTP
62oC
Yes
INH0/EN0 TTL Function
Inhibit
Yes
INH1/EN1 TTL Function
Inhibit
Yes
Wait for Power Switch
Enable
Yes
Disable on 5V_STBY
Fault
Disable
Yes
RACK Synchronized Off
Disable
Yes
Numbers of Racks
Connected
1
Yes
MODULE
Module Synchronized
Off
Enable
Yes
Module Grouping
No Grouping
Yes
Note: * - Model revision AZ or later for 73-958-0001, model revision AH or later for 73-958-0001L & 73-958-
0001S are set by default to DHCP.
4.2 Module and Rack Hardware Signals
This section contains a description of module and rack analog and digital hardware signals that the users can
use based on their requirements or applications. For module command information, please refer to Appendix
B.2 Module Command.
iHP Manual 47 | P a g e
iHP Owners Manual
4.2.1 Module Interface Signals
Figure 4-3 shows the location of the J1 and J2 connectors and the pin location of the signals. These signals
allow direct interface with the supply to allow direct control and monitoring of the iHP system using analog
and digital input and outputs.
Figure 4-3 Module J1 and J2 signal connections for controlling the modules
4.2.1.1 Module’s J1 Signal
Table 4-3 lists the signal information available on connector J1.
Warning! - The module’s J2 signals and output voltage are isolated from module’s J1
signals. D_RTN and SYS_RTN are completely isolated.
Table 4-3
J1
Pin No.
Signal Name
Signal Type
Functions
iHP Manual 48 | P a g e
iHP Owners Manual
1
0-10VEXT_VPROG
Input
Use to control the output voltage by applying 0 to 10V
to this pin. This pin will function when the module is
configured to Analog Voltage Source.
2
0-5VEXT_VPROG
Input
Use to control the output voltage by applying 0 to 5V to
this pin. This pin will function when the module is
configured to Analog Voltage Source.
3
0-10VEXT_IPROG
Input
Use to control the output current by applying 0 to 10V
to this pin. This pin will function when the module is
configured to Analog Current Source.
4
0-5VEXT_IPROG
Input
Use to control the output current by applying 0 to 5V to
this pin. This pin will function when the module is
configured to Analog Current Source.
5
Dummy Pin
6
Dummy Pin
7
SYS_M_INHIBIT
Input
Signal to Inhibit the module
8
SYS_RTN
Ground reference for J1 signals.
9
SYS_M_ENABLE#
Input
Signal to Enable the module
10
SYS_M_FAULT#
Output
Signal to notify user that Fault occurred.
4.2.1.1.1 Analog Voltage Programming
0-10VEXT_VPROG (J1 Pin1) and 0-5VEXT_VPROG (J1 Pin2) are used to program the output voltage by applying
external voltages. Analog voltage programming will work if the module configuration is in analog voltage
source.
Please note that 0-10VEXT_VPROG and 0-5VEXT_VPROG cannot be used simultaneously:
If user will use 0-10VEXT_VPROG, 0-5VEXT_VPROG should be floating.
If user will use 0-5VEXT_VPROG, 0-10VEXT_VPROG should be floating.
When utilizing signal, 0-10VEXT_VPROG, apply 0V to 10V between J1 pin 1 (0-10VEXT_VPROG) and J1 pin 8
(SYS_RTN). Table 4-4 shows the corresponding output voltage when utilizing this signal.
Table 4-4
0-10VEXT_VPROG
Corresponding Output Voltage
0V – 0.42V
5% Nominal Output Voltage
iHP Manual 49 | P a g e
iHP Owners Manual
2.5V
30% Nominal Output Voltage
5V
60% Nominal Output Voltage
7.5V
90% Nominal Output Voltage
8.33V
100% Nominal Output Voltage
10V
120% Nominal Output Voltage
When utilizing signal, 0-5VEXT_VPROG, apply 0V to 5V between J1 pin 2 (0-10VEXT_VPROG) and J1 pin 8
(SYS_RTN). Table 4-5 shows the corresponding output voltage when utilizing this signal.
Table 4-5
0-5VEXT_VPROG
Corresponding Output Voltage
0V – 0.21V
5% Nominal Output Voltage
1.25V
30% Nominal Output Voltage
2.5V
60% Nominal Output Voltage
3.75V
90% Nominal Output Voltage
4.166V
100% Nominal Output Voltage
5V
120% Nominal Output Voltage
4.2.1.1.2 Analog Current Programming
0-10VEXT_IPROG (J1 Pin3) and 0-5VEXT_IPROG (J1 Pin4) are used to program the output current by applying
external voltages. Analog current programming will work if the module configuration is in analog current
source.
Please note that 0-10VEXT_IPROG and 0-5VEXT_IPROG cannot be used simultaneously:
If user will use 0-10VEXT_IPROG, 0-5VEXT_IPROG should be floating.
If user will use 0-5VEXT_IPROG, 0-10VEXT_IPROG should be floating.
When utilizing signal, 0-10VEXT_IPROG, apply 0V to 10V between J1 pin 3 (0-10VEXT_IPROG) and J1 pin 8
(SYS_RTN). Table 4-6 shows the corresponding output current when utilizing this signal.
Table 4-6
0-10VEXT_IPROG
Corresponding Output Current
0V
0% Nominal Output Current
iHP Manual 50 | P a g e
iHP Owners Manual
2.5V
25% Nominal Output Current
5V
50% Nominal Output Current
7.5V
75% Nominal Output Current
10V
Nominal Output Current
When utilizing signal, 0-5VEXT_IPROG, apply 0V to 5V between J1 pin 4 (0-10VEXT_IPROG) and J1 pin 8
(SYS_RTN). Table 4-7 shows the corresponding output current when utilizing this signal.
Table 4-7
0-5VEXT_IPROG
Corresponding Output Current
0V
0% Nominal Output Current
1.25V
25% Nominal Output Current
2.5V
50% Nominal Output Current
3.75V
75% Nominal Output Current
5V
Nominal Output Current
4.2.1.1.3 SYS_RTN
SYS_RTN (J1 pin 8) is the common ground for J1 signals. SYS_RTN is isolated from Module Negative Output
terminal and Module J2 D_RTN.
4.2.1.1.4 Isolated Output Inhibit
The iHP module provides an input signal to inhibit the output. J1 Pin7 SYS_M_INHIBIT functions as the
inhibit signal of the module. This inhibit pin is internally connected to an optocoupler’s LED side. An
external 1kohms pull-up resistor is required. The pull-up resistor is connected to a 5V supply. The
maximum pull-up resistor voltage is 5V and the maximum sink current is 5mA.
The logic for this pin is configurable via module command SET_IO_ACTIVE_LEVEL_LOGIC (B7h) and can
change the correlation between the output state and the status of the optocoupler’s LED.
The default pin configuration is
Optocoupler LED On = Output is Disabled
Optocoupler LED Off = Output is Enabled
Figure 4-4 shows recommended external circuits to control the inhibit pin.
iHP Manual 51 | P a g e
iHP Owners Manual
Figure 4-4 Isolated output inhibit circuits to externally inhibit the module.
4.2.1.1.5 Isolated Output Enable
The iHP module provides an input signal to enable output. J1 Pin 9 SYS_M_ENABLE# functions as the
enable signal of the module. This pin is internally connected to an optocoupler’s LED side. An external
1kohms pull up resistor is required. The pull up resistor is connected to a 5V supply. The maximum pull
up resistor voltage is 5V and the maximum sink current is 5mA.
The logic for this pin is configurable via module command SET_IO_ACTIVE_LEVEL_LOGIC (B7h) and can
change the correlation between the output state and the status of the optocoupler’s LED.
The default pin configuration is
Optocoupler LED On = Output is Disabled
Optocoupler LED Off = Output is Enabled
Figure 4-5 shows recommended external circuits to control the enable pin.
iHP Manual 52 | P a g e
iHP Owners Manual
Figure 4-5 Isolated Output Enable to externally Enable module.
4.2.1.1.6 Isolated Fault Signal
During a fault condition, the iHP module provides a fault signal to the system side. J1 Pin 10
SYS_M_FAULT# functions as the fault signal of the module. The signal is internally connected to an open
collector output. An external 2kohms pull-up resistor is required. The pull-up resistor should be
connected to a 5V supply. The maximum pull-up resistor voltage is 5V and the maximum sink current of
5mA.
The logic for this pin is configurable via module command SET_IO_ACTIVE_LEVEL_LOGIC (B7h) and can
change the correlation between the output state and the status of the module.
The default pin configuration is
SYS_M_FAULT# logic Low = Module is at Fault.
SYS_M_FAULT# logic High = Module is at normal operating condition.
Figure 4-6 shows recommended external circuits to control the enable pin.
iHP Manual 53 | P a g e
iHP Owners Manual
Figure 4-6 Isolated fault signal to signal a module fault condition
4.2.1.2 Module’s J2 Signal
Table 4-8 list the signal information available on connector J2. The module analog connector J2 contains non-
isolated signals. The signal’s circuitry is internally connected and referenced to the module’s output negative
terminal. The module’s J2 signals are isolated from the module’s J1 signals.
Table 4-8
J2
Pin No.
Signal Name
Signal Type
Functions
1
V_SNS+
Input
Signal use for module positive remote sense
2
D_RTN
Ground reference for IMON or VMON signals
3
EXT_ISENSE+
Input
Input for external resistor shunt for external current sensing
application.
4
D_RTN
Ground reference for ISHARE signal
5
IMON
Output
Analog signal to report the output current in scaled value (0-
10V)
6
Dummy Pin
7
D_RTN
Ground reference for IMON or VMON signals
8
V_SNS-
Input
Signal use for module negative remote sense
9
EXT_ISENSE-
Input
Input for external resistor shunt for external current sensing
application
10
ISHARE
Output
Signal for active current sharing
11
VMON
Output
Analog signal to report the output voltage in scaled value (0-
10V)
12
Dummy Pin
iHP Manual 54 | P a g e
iHP Owners Manual
4.2.1.2.1 V_SNS+ and V_SNS-
The distance of the load and the module can create a voltage drop on the wires. To compensate for the
voltage drops on the wire, remote sense is employed.
The module has a positive return, V_SNS+ J2 Pin 1, and a negative return, V_SNS- J2 Pin 8, remotes sense to
compensate for ground drops and line drops respectively. Remote sense will be able to regulate out a
maximum of 200mV drop on each sense line. It is recommended for user to connect the remote sense either
on the load side or to the output terminals of the modules. The connection of the remote sense signal
determines the point at which the voltage will regulate. Remote sense is required to meet the regulation
specification of the module. Remote sense is required during voltage source configuration.
The module will protect itself if the polarity is incorrectly connected between the V_SNS+ and V_SNS- to
module’s output positive and negative terminal. It is recommended to use twisted and equal length wires for
V_SNS+ and V_SNS- for noise immunity.
For parallel module output operation, all module V_SNS+ should be star connected and all
module V_SNS- should be star connected as shown by examples in Figure 4-7. Star connection is
recommended to reduce the introduction of DC offset and noise to the signals.
iHP Manual 55 | P a g e
iHP Owners Manual
Figure 4-7 Examples of star connections for remote sensing
4.2.1.2.2 External Current Sense
An external shunt resistor can be connected to the iHP module. The current sensing will be transferred from
the iHP module internal shunt to external shunt. The iHP module’s EXT_ISENSE+ J2 Pin 3 and EXT_ISENSE- J2
Pin 9 signals are used for external current sense application.
The module configuration should be changed to enable external current sense operation via ISOCOMM
command module MODULE_CONFIG (D3h).
iHP Manual 56 | P a g e
iHP Owners Manual
When using external current sense, all output current information used by the iHP module will be taken from
the differential voltage across the external shunt. The information collected from external sense connections
will be used for output reporting, current protection, and constant current operation.
Connection of the external shunt should only be on the negative output busbar of the iHP module. The
EXT_ISENSE- should be connected to the external shunt’s negative output busbar side and the EXT_ISENSE+
should be connected to the external shunt’s load side as shown in Figure 4-8.
Figure 4-8 Location of external shunt and external shunt sense lines
Table 4-9 list the required shunt resistor per iHP module.
Table 4-9
iHP Module
Module Current
Rating (A)
Voltage Drop (mV)
Tolerance Max (%)
TCR max
(ppm/degC)
12V
200
10
+ 5
25
24V
200
12
+ 5
25
48V
62.5
7.8125
+ 5
25
80V
37.5
9.375
+ 5
25
125V
24
12
+ 5
25
200V
15
12
+ 5
25
250V
12
12
+ 5
25
4.2.1.2.3 Current Monitor (IMON)
IMON J2 Pin 5 is an output signal. IMON functions as the current monitor signal of the module. It reports the
sensed output current with a scaled voltage between 0 and 10V according to Table 4-10. D_RTN J2 Pin2 is
used for twisted pair cabling with IMON.
iHP Manual 57 | P a g e
iHP Owners Manual
Table 4-10
IMON
Output Current
0V
0% Nominal Output Current
2.5V
25% Nominal Output Current
5V
50% Nominal Output Current
7.5V
75% Nominal Output Current
10V
Nominal Output Current
4.2.1.2.4 Voltage Monitor (VMON)
VMON J2 Pin 11 is an output signal. VMON functions as the voltage monitor signal of the module. It reports
the sensed output voltage with a scaled voltage between 0 and 0V. D_RTN J2 Pin 7 is used for twisted pair
cabling with VMON.
Table 4-11
VMON
Output Voltage
0V – 0.42V
5% Nominal Output Voltage
2.5V
30% Nominal Output Voltage
5V
60% Nominal Output Voltage
7.5V
90% Nominal Output Voltage
8.33V
100% Nominal Output Voltage
10V
120% Nominal Output Voltage
4.2.1.2.5 Current Sharing Signal (ISHARE)
ISHARE J2 Pin 10 signal is used for active current sharing. Interconnecting the ISHARE signal of the modules in
a star connection activate the active current sharing circuitry. Active current sharing is required when modules
are connected in parallel. The module’s ISHARE signal and D_RTN J2 Pin 4 should be star connected. This will
reduce the introduction of DC offset and noise to the signals.
4.2.1.2.6 D_RTN
D_RTN (J2 Pin2 and Pin7) is used for twisted pair cabling of IMON and VMON signal to reduce noise pick up.
D_RTN (J2 Pin2) is used for twisted pair cabling with IMON.
D_RTN (J2 Pin7) is used for twisted pair cabling with VMON.
D_RTN (J2 Pin4) is used as return ground for the ISHARE signal.
iHP Manual 58 | P a g e
iHP Owners Manual
D_RTN is internally connected to module’s negative output and D_RTN is isolated from module’s J1 SYS_RTN.
4.2.2 iHP Rack Communications and Interfaces
The following section describes the available communication ports and protocols available on the rack to
interface the rack to the user’s system. Figure 4-9 shows the back panel of the section and location of the
ports and Table 4-12 list the available ports.
Warning! - iHP rack signal in this section are isolated from module’s signal (J1 and J2
connector).
Figure 4-9 Communication ports on back panel of iHP rack
iHP Manual 59 | P a g e
iHP Owners Manual
Table 4-12
iHP Rack Port
Connector
Functions
USB Port
Standard USB
Use for Future Expansion.
ETHERNET Port
8Pin RJ45
Use for Ethernet communication.
RS485/CAN Port
6Pin RJ11
Use for RS485 and CAN communication.
4.2.2.1 USB Port
USB port for future expansion
4.2.2.2 ETHERNET Port
LAN Port for Ethernet communication
4.2.2.3 RS485/CAN Port
Figure 4-10 RS485/CAN Port pinout
To communicate via RS485 or CAN communication user will need a 6pin RJ11 connector. There are two
identical port for RS485/CAN as shown in Figure 4-10 and the pinout of RS485/CAN port 1 and RS485/CAN port
2 are the same. All signals with the same signal name of RS485/CAN port 1 and RS485/CAN port 2 are
internally connected. The two ports functions to provide user easy iHP rack to iHP rack daisy chaining of the
RS485 and CAN communication lines.
4.2.2.3.1 CANL and CANH
The CAN communication lines are for communicating via the CAN protocol.
4.2.2.3.2 RS485_A and RS485_B
The RS485 communication lines are used for communicating using the RS485 protocol.
iHP Manual 60 | P a g e
iHP Owners Manual
4.2.2.3.3 GND
The GND is used as the common ground for RS485 or CAN communication. The GND signal is internally
connected to DSUB9 pin 2 5V Housekeeping Bias Return.
4.2.2.3.4 5V Housekeeping Bias
Supply Bias for CAN and RS485 communication and is internally connected to DSUB9 pin 1 5V Housekeeping
Bias.
4.2.2.4 LAN RESET BUTTON
Button to reset the Ethernet setting to STATIC with IP address 192.168.2.100
4.2.2.5 LAN STATUS LED
For future expansion
4.2.2.6 DSUB9 Port
Figure 4-11 shows the DSUB9 signals and pin locations and Figure 4-13 lists the signals and their functions.
Figure 4-11 Dsub9 Port pinout
iHP Manual 61 | P a g e
iHP Owners Manual
Table 4-13
DSUB9
Pin No.
Signal Name
Signal
Type
Functions
1
5V Housekeeping Bias
Output
5V supply to power up system side circuits
2
5V Housekeeping Bias
Return
Output
Ground reference of the 5V Housekeeping Bias
3
Dummy
4
Global Inhibit/Enable
Logic “1”
Input
Signal can be configured for either Inhibit logic High or
Enable logic High
5
Global Inhibit/Enable
Logic “0”
Input
Signal can be configured for either Inhibit logic Low or
Enable logic Low
6
ACOK- “Emitter”
Output
Use for ACOK signal
7
ACOK- “Collector”
Output
Use for ACOK signal
8
Global DCOK- “Emitter”
Output
Use for DCOK signal
9
Global DCOK-
“Collector”
Output
Use for DCOK signal
4.2.2.6.1 5V Housekeeping Bias
The 5V supply, DSUB9 Pin 1 is for user housekeeping circuits and has a maximum supply capability of 1A. The
signal is internally connected to the 6 pin RJ11 5V Housekeeping Bias on pin 4 and pin 10.
4.2.2.6.2 5V Housekeeping Bias Return
Ground for 5V Housekeeping Bias on DSUB9 pin 2
4.2.2.6.3 Global Inhibit/Enable Logic “1”
The Global Inhibit/Enable Logic “1” DSUB9 pin 4 signal functions to turn-off or turn-on all modules
simultaneously. This signal can be configured to either Global Inhibit1 or Global Enable1 via the ISOCOMM
WebTool.
When this pin is configured as Inhibit1 (INH1),
A 5V input will activate Inhibit function and will shut down all modules
A ground connection or no connection will de-activate the inhibit function and all modules will turn-on
When this pin is configured as Enable1 (EN1),
A 5V input will activate Enable function and all modules will turn-on
iHP Manual 62 | P a g e
iHP Owners Manual
A ground connection or no connection will de-activate Enable function and will shut down all modules
4.2.2.6.4 Global Inhibit/Enable Logic “0”
The Global Inhibit/Enable Logic “0” (DSUB9 Pin5) signal functions to turn-off or turn-on all modules
simultaneously. This signal can be configured either Global Inhibit 0 or Global Enable 0 via ISOCOMM
WebTool.
When this pin is configured as Inhibit 0 (INH0),
A 5V input or no connection will de-activate Inhibit function and all modules are enabled
A ground input will activate Inhibit function and will shut down all modules
When this pin is configured as Enable 0 (EN0),
A 5V input or no connection will de-activate Enable function and will shut down all modules
A ground input will activate Enable function and all modules are enabled
Table 4-14 lists the functionality of these Inhibit and Enable signals based on the configuration of the supply.
Table 4-14
Configuration
iHP Rack DSUB9
Module
Status
Input to
Global Inhibit/Enable Logic “0”
Input to
Global Inhibit/Enable Logic “1”
INH0 & INH1
Shorted to GND
Floating
OFF
Shorted to GND
5V
OFF
Floating
Floating
ON
Floating
5V
OFF
INH0 & EN1
Shorted to GND
Floating
OFF
Shorted to GND
5V
OFF
Floating
Floating
OFF
Floating
5V
ON
EN0 & INH1
Shorted to GND
Floating
ON
Shorted to GND
5V
OFF
Floating
Floating
OFF
Floating
5V
OFF
EN0 & EN1
Shorted to GND
Floating
OFF
Shorted to GND
5V
ON
Floating
Floating
OFF
Floating
5V
OFF
iHP Manual 63 | P a g e
iHP Owners Manual
4.2.2.6.5 ACOK Signal “Power Fail” (Uncommitted Transistor)
This signal indicates that the input AC is within operational range of the unit. ACOK- “Emitter” and ACOK+
“Collector” signal functions as an AC OK signal. These signals are connected to an uncommitted transistor.
AC is Ok when the transistor is On.
AC is not Ok when the transistor is Off.
The max sink current is 50mA for ACOK transistor and the bias resistor should be chosen to limit current to a
maximum of 50mA. The recommended supply voltage is 5V. Possible circuit configuration for AC OK signal is
shown in Figure 4-12.
Figure 4-12 Possible circuits configuration for ACOK functionality
4.2.2.6.6 DCOK Signal “Output Fail” (Uncommitted Transistor)
This signal indicates that all modules are on and functioning properly. The signal will be de-asserted when at
least one module turns off via fault or inhibited by the system. DCOK- “Emitter” and DCOK+ “Collector” signal
functions as DC OK signal. These signals are connected to an uncommitted transistor.
When all output of module is Ok, the transistor is On.
When all output of module is not Ok, the transistor is Off.
The max Sink current is 50mA for DCOK transistor and the bias resistor should be chosen to limit
current to a maximum of 50mA. The recommended supply voltage is 5V. Possible circuit configuration for
DCOK signal is shown in Figure 4-13.
iHP Manual 64 | P a g e
iHP Owners Manual
Figure 4-13 Possible circuits configuration for DCOK functionality
At iHP rack start-up, the iHP rack will detect the slots with populated modules. The assertion of hardware
DCOK signal will be based on the output status of the modules detected by the iHP rack during start-up. For
example:
When seven modules inserted to the iHP rack,
For the iHP rack DCOK signal to assert, all seven modules should have a power good status.
If any module has a power bad status, the iHP rack DCOK signal will be de-asserted.
When three modules inserted to iHP rack,
For the iHP rack DCOK signal to assert, all three modules should have a power good status.
If any module has a power bad status, the iHP rack DCOK signal will be de-asserted.
4.3 Module Operating Mode
The iHP modules can be operated in several operating modes. The operating mode is set by the ISOCOMM
D3h command and once set remains in the mode chosen until changed by a sending a new configuration via
the ISOCOMM D3h command.
Digital Voltage Source (DVS) – The module operates as a voltage source. The module output voltage
functions can only be controlled by sending a command using a PC or laptop.
Digital Current Source (DCS) – The module operates as a current source. The module output current
functions can only be controlled by sending a command using a PC or laptop.
Analog Voltage Source (AVS) – The module operates as a voltage source. The module output voltage can
only be controlled by inputting 0V-10V to module’s 0-10VEXT_VPROG signal (module J1 connector pin1) or
0V-5V to module’s 0-5VEXT_VPROG signal (module J1 connector pin2).
iHP Manual 65 | P a g e
iHP Owners Manual
Analog Current Source (ACS) - The module operates as a current source. The module output current can
only be controlled by inputting 0V-10V to module’s 0-10VEXT_IPROG signal (module J1 connector pin3) or
0V-5V to module’s 0-5VEXT_IPROG signal (module J1 connector pin4).
Module operating mode can be change via ISOCOMM Command D3h. Module operating mode can be check
via reading Module Command D3h. Table 4-15 lists the module nominal settings and the output range
configurability.
Table 4-15
Module
Series
Vnominal
Inominal
Pnominal
DVS and AVS Output
Voltage Range (5% to
120%)
DCS and ACS Output
Current Range (0% to
100%)
12V
12V
200A
2400W
0.6V to 14.4V
0A to 200A
24V
24V
120A
2880W
1.2V to 28.8V
0A to 120A
48V
48V
62.5A
3000W
2.4V to 57.6V
0A to 62.5A
80V
80V
37.5A
3000W
4V to 96V
0A to 37.5A
125V
125V
24A
3000W
6.25V to 150V
0A to 24A
200V
200V
15A
3000W
10V to 240V
0A to 15A
250V
250V
12A
3000W
12.5V to 300V
0A to 12A
4.4 Digital Control
The user can control the module’s output voltage or current using a PC or laptop when the module is
configured in digital control. A wide range of digital commands is supported. Module commands are specific
to an individual module at the module level. ISOCOMM commands are higher-level system commands such as
when controlling a group of modules. Many of the commands are fixed but several are user configurable. A
list of the user configurable commands specific to the modules and example of the command structure is
shown in Section 5.2. Definition of all the Module Commands is in Appendix B.2, Module Command.
Definition of ISOCOMM Command is in Appendix B.3, ISOCOMM Command.
4.4.1 Digital Voltage Source (DVS)
In this operating mode, the user has the capability to control the output voltage using digital means. A PC or
laptop will be required to change the output voltage. To change to Digital Voltage Source (DVS) mode, the
user needs to send below commands to ISOCOMM.
Device Address
ISOCOMM Command
Data1
Data2
00h
D3h
<Module slot or Group #>
00h
*Before writing to the ISOCOMM, please ensure that the ISOCOMM Command Write Protect (10h) is disabled.
Where: Data1 please refer to ISOCOMM Command Table
Data2 “00h” signifies Digital Voltage Source
After sending ISOCOMM Command D3h, the modules will momentarily shutdown, re-initialize, and then
restart. The shutdown, re-initialize, and restart process takes approximately 1.5 seconds. Since the module
iHP Manual 66 | P a g e
iHP Owners Manual
will re-initialize, the Module Operational Command (01h) and Module Write Protect Command (10h) will be
set to enable. The module output will be ON and set to nominal V out.
Table 4-17 lists the status of the module command and the functionality of the commands when configuring
the module to DVS mode.
Table 4-16
Module Command
Command Name
Functional
in DVS
Upon Change to DVS
B1h
VREF
Yes
Set to the module’s nominal output voltage.
B2h
IREF
Yes
IREF is the output current level in which the
module will enter to Constant Current Source.
During 52h set to Constant Current, value will be
set based on Module Command 4Dh and nominal
output current.
During 52h set to Latch Type, although the Latch
level can be adjusted, the IREF value will be fixed
to 120% of the nominal output current.
48h
OV_FAULT_LIMIT_MULTIPLIER
Yes
No change from previous value
49h
OV_WARN_LIMIT_MULTIPLIER
Yes
No change from previous value
4Bh
UV_FAULT_LIMIT_MULTIPLIER
Yes
No change from previous value
4Ch
UV_WARN_LIMIT_MULTIPLIER
Yes
No change from previous value
4Dh
OC_FAULT_LIMIT_MULTIPLIER
Yes
No change from previous value
52h
OC_RESPONSE_TYPE
Yes
Set to Constant Current Protection
B5h
SET_VOLTAGE_RISE_SETTING
Yes
No change from previous value
B6h
SET_CURRENT_RISE_SETTING
No
No change from previous value
B7h
SET_IO_ACTIVE_LEVEL_LOGIC
Yes
No change from previous value
B8h
SET_MODULE__LOAD_TYPE
Yes
Default to capacitive load type Data “02h”
BAh
ANALOG_FILTER_ENABLE
No
No change from previous value
*Functional: If Yes, Module Command is operational during the module mode.
If No, Module Command is not operational during the module mode
To change module output voltage, a B1h (VREF) command to the module.
Device Address
Module Command
Data
<Module Slot Address>
B1h
< Data is the Set Voltage in hexadecimal>
*Before writing to the module, please ensure that the Module Command Write Protect (10h) is disabled.
*Please refer to Section 5.2 for Module User Configurable Parameters or Appendix B.2 Module Command
The user can program the module’s output voltage within 5% to 120% of the nominal output voltage rating of
the module. For example, a 24V module has a nominal voltage of 24V and can be set to operate between 1.2V
and 28.8V.
iHP Manual 67 | P a g e
iHP Owners Manual
Setting the VREF outside the valid range:
Setting the VREF value beyond the acceptable range, but not to 0V, the module will trigger a Status
CML (Communication Memory Logic) fault and will retain the existing value.
Setting the VREF value to 0V, the module will enter to standby mode. To re-enable the module, set
VREF to an acceptable range.
During a module change of output voltage:
OVP is temporary disabled until the output voltage level increases to the commanded VREF.
UVP is temporary disabled until the output voltage level decreases to the commanded VREF.
IREF will automatically readjust if the voltage request is above the nominal output voltage. This will
prevent the module from operating above the rated power.
4.4.1.1 DVS Protection Modes
When the supply is in DVS mode, the output is protected against over current, short circuit, over voltage, and
under voltage faults. The behavior of the supply during an over current fault or short circuit fault is dependent
on whether IREF is set to constant current behavior or latch behavior. In constant current mode, the module
will attempt to operate at a constant current level while reducing the output voltage and in latch mode, the
supply shut off. In the event of over voltage and under voltage faults, the supply will shut down. Please refer
to Section 8 on how to clear the fault and power up the module after fault.
4.4.1.1.1 DVS Protection Over Current Response
Over current (OC) response mode will be set by Module Command 52h (OC_RESPONSE_TYPE). The two types
of response are Constant Current and Latch. The over current level will be based on Module Command 4Dh
OC_FAULT_LIMIT_MULTIPLIER setting.
Module command 4Dh OC_FAULT_LIMIT_MULTIPLIER range is 50% to 105%
When 52h is set to Constant Current Response, the module will enter constant current mode when load
current reaches the IREF value (B2h). The output voltage will decrease to maintain the load current at the
current limit. No fault reporting occurs during this condition.
The module will revert to normal operation when load current becomes less than IREF value (B2h).
The constant current setting, IREF, is dependent on the Vout setting (VREF).
When the:
Vo (VREF) is below or equal to the nominal voltage
IREF = (Inominal) * (OC_FAULT_LIMIT_MULTIPLIER)
Vo (VREF) is above the nominal voltage, the IREF, value is automatically reduced to maintain the supply
within the maximum peak power of the module
IREF = [ (Pnominal) * (OC_FAULT_LIMIT_MULTIPLIER)] / VREF
iHP Manual 68 | P a g e
iHP Owners Manual
Note that the CC setting level, IREF, will be reflected on IREF (Module Command B2h).
When 52h is set to Latch Type, the module will shut down when the output current reaches the Latch Level for
500msec and a fault status will be reported. The Latch Current Level setting is dependent on the Vout setting
(VREF).
When the:
Vo (VREF) is below or equal to the nominal voltage
Latch Current Level = (Inominal) * (OC_FAULT_LIMIT_MULTIPLIER)
Vo (VREF) is above the nominal voltage, Latch Level value is automatically reduced to maintain the supply
within the maximum peak power of the module
Latch Current Level = [ (Pnominal) * (OC_FAULT_LIMIT_MULTIPLIER)] / VREF
Note that latch setting level will NOT be reflected to IREF (Module Command B2h). Latch Level can be
determined by computation as stated above.
4.4.1.1.2 DVS Short Circuit Protection
When 52h is set to Constant Current Response, the module will shut down when Vo is approximately less than
4% of the nominal for 2 seconds or more. A fault status will be reported.
When 52h set to Latch Type Response and an output short circuit occurs, the current level should exceed the
latch current level and the module will shut down. A fault status will be reported.
4.4.1.1.3 DVS Protection Over Voltage Protection (OVP)
Over voltage protection will be based on Module Command 48h (OV_FAULT_LIMIT_MULTIPLIER) and B1h
(VREF),
OV Level = (48h OV_FAULT_LIMIT_MULTIPLIER) x (B1h VREF)
The module will shut down when the output voltage reaches the OVP level and a Fault status will be reported.
4.4.1.1.4 DVS Protection Under Voltage Protection (UVP)
Under voltage protection will be based on Module Command 4Bh (UV_FAULT_LIMIT_MULTIPLIER) and B1h
(VREF),
UV Level = (4Bh UV_FAULT_LIMIT_MULTIPLIER) x (B1h VREF)
The module will shut down when the output voltage is less than UVP level and a fault status will be reported.
Note that output UVP will be disabled when the module enters constant current protection.
iHP Manual 69 | P a g e
iHP Owners Manual
4.4.2 Digital Current Source (DCS)
In this operating mode, user has the capability to control the output current using digital means. A PC or
laptop will be required to change the output current. To change to Digital Current Source (DCS) mode, the
user needs to send below commands to ISOCOMM.
Device Address
ISOCOMM Command
Data1
Data2
00h
D3h
<Module slot or Group #>
0x08h
*Before writing to the ISOCOMM, please ensure that the ISOCOMM Command Write Protect (10h) is disabled.
Where: Data1 please refer to ISOCOMM Command Table.
Data2 “08h” signifies Digital Current Source.
After sending ISOCOMM Command D3h, module will momentarily shutdown, re-initialize and restart. The
shutdown, re-initialize, and restart process takes approximately 1.5 seconds. Since the module will re-
initialize, the Module Operational Command (01h) and Module Write Protect Command (10h) will be set to
enable. IREF will automatically be set to 0A. Table 4-17 list the status of the module command and the
functionality of the commands when configuring the module to DCS mode.
Table 4-17
Module
Comman
d
Command Name
Functional
in DCS
Upon Change to DCS
B1h
VREF
Yes
Set to module's nominal output voltage
B2h
IREF
Yes
Set to 0A
48h
OV_FAULT_LIMIT_MULTIPLIER
Yes
Tracking OV Enable will be based on the set
VREF
OVP multiplier no change from previous value.
49h
OV_WARN_LIMIT_MULTIPLIER
Yes
Tracking OV Warning Enable will be based on
the set VREF
OVP warning multiplier no change from previous
value
4Bh
UV_FAULT_LIMIT_MULTIPLIER
No
Disable. No change from previous value
4Ch
UV_WARN_LIMIT_MULTIPLIER
No
Disable. No change from previous value
4Dh
OC_FAULT_LIMIT_MULTIPLIER
Yes
No change from previous value.
52h
OC_RESPONSE_TYPE
No
Fix to Latch type
B5h
SET_VOLTAGE_RISE_SETTING
No
No change from previous value
B6h
SET_CURRENT_RISE_SETTING
Yes
No change from previous value
B7h
SET_IO_ACTIVE_LEVEL_LOGIC
Yes
No change from previous value
B8h
SET_MODULE__LOAD_TYPE
Yes
Last setting of B8h during DCS
Factory setting of B8h during ACS is Resistive
(01h)
BAh
ANALOG_FILTER_ENABLE
No
No change from previous value
*Functional: If Yes, Module Command is operational during the module mode.
If No, Module Command is not operational during the module mode
iHP Manual 70 | P a g e
iHP Owners Manual
To change module output current, user needs to send below B2h (IREF) command to the module.
Device Address
Module Command
Data
<Module Slot Address>
B2h
< Data is the Set Current>
*Before writing to the module, please ensure that the Module Command Write Protect (10h) is disabled.
* Please refer to Section 5.2 for Module User Configurable Parameters or Appendix B.2 Module Command
The user can program the module’s output current within 0% to 100% of the nominal output current. Setting
the IREF value beyond the acceptable range, but not to 0A, the module will trigger a Status CML fault and will
retain the existing value. Setting the IREF value to 0A will cause the module to enter to standby mode. To
enable again the module, set IREF to an acceptable range.
4.4.2.1 DCS Protection Modes
When the supply is in DCS mode, the supply limits the current to the IREF value and the voltage is limited by
the VREF value. Secondary output protection is provided in rare load conditions by the OC Fault Level and the
OV Fault Level.
4.4.2.1.1 DCS Protection: Constant Voltage Clamp
There are conditions that can exist when the output voltage will be greater than the VREF level (B1h)
Fixed load resistance and the user increases the IREF setting
Fixed IREF setting and load resistance increases.
When module output voltage reaches the VREF level, the module will enter constant voltage mode. This will
protect the module from continuous increase in output voltage. There will be no fault reporting during this
condition. To enter again to DCS, the user needs to decrease the IREF setting or decrease the load resistance.
For module software v04.10.00 and above, user can update the Constant Voltage Clamp from nominal voltage
down to 5% of the nominal voltage of the module via Module Command B1h. For module software below
v04.10.00, constant voltage clamp is fixed to the nominal output voltage.
4.4.2.1.2 DCS Protection: Over Current Response and Short Circuit Protection
During DCS, over current response will be fix to “Latch type” (52h). OC level will be based on Module
Command 4Dh OC_FAULT_LIMIT_MULTIPLIER setting.
Module Command 4Dh OC_FAULT_LIMIT_MULTIPLIER range is 50% to 105%
The module will shut down when the output current reaches the OC level and a fault status will be reported.
With Vo (VREF) below or equal to the nominal voltage, the latch level setting value is
Latch Current Level = (Inominal) * (OC_FAULT_LIMIT_MULTIPLIER)
Note that the latch setting level will NOT be reflected to IREF (Module command B2h). Latch level can be
determined by computation as stated above.
iHP Manual 71 | P a g e
iHP Owners Manual
4.4.2.1.3 DCS Protection: Over Voltage Protection (OVP)
Over voltage protection level during DCS will be based on the OV Fault Limit Multiplier (48h) and VREF (B1h)
setting.
OV Level = (48h OV_FAULT_LIMIT_MULTIPLIER) x (B1h VREF)
The module will shut down when the output voltage reaches the OVP level and a fault status will be reported.
4.4.2.1.4 DCS Protection: Under Voltage Protection (UVP)
During DCS operating mode, under voltage protection is not functional.
4.4.3 Module Grouping for Series or Parallel Connection Digital Operation
Modules can be operated in Series or Parallel connection during Digital Mode. Below are list of possible series
or parallel connections.
DVS parallel connection
DVS series connection
DCS parallel connection
To work properly, the modules must be connected in parallel or series. Only modules of the same model can
be connected in series or in parallel. When a certain module will be included in the group, there are
restrictions in place to protect the user and system. Please refer to Section 5.1.5.2 for Module Grouping
configuration and Section 6 for Module Grouping details.
4.4.3.1 DVS Parallel Connection
All modules connected in parallel should:
be grouped as one using ISOCOMM WebTool.
have the same module configuration.
have positive terminals connected in parallel.
have negative terminals connected in parallel.
have “ISHARE” signals (Module’s J2 pin 10) star connected.
have “D_RTN” signals (Module’s J2 pin 4) star connected.
have “REMOTE_SENSE_+” star connected and connected to the desired point of regulation.
have “REMOTE_SENSE_-” star connected and connected to the desired point of regulation.
To change Group Module output voltage, the user needs to send below B1h (VREF) command to the group.
Device Address
Module Command
Data
<Group Number>
B1h
< Data is the Set Voltage>
*Before writing to this command, please ensure that the Group Address Write Protect (10h) is disabled.
The group output voltage can be programmed within 5% to 120% of the nominal output voltage. Setting the
VREF value beyond the acceptable range, but not to 0V, the module will trigger a Status CML fault and will
iHP Manual 72 | P a g e
iHP Owners Manual
retain the existing value. Setting the VREF value to 0V, the module will enter to standby mode. To enable
again the module, set VREF to an acceptable range.
During group module change of output voltage:
All modules in the group will adjust based on the commanded output voltage.
OVP is temporarily disabled until the output voltage level reaches the commanded VREF.
UVP is temporarily disabled until the output voltage level reaches the commanded VREF.
IREF will automatically readjust if the voltage request is above the nominal output voltage. This will
prevent module to operate above the rated power.
4.4.3.1.1 DVS Parallel Connection Protection
Each individual module in a group will protect independently. Each individual module in a group will protect as
stated on section 4.4.1.1.
4.4.3.2 DVS Series Connection
All modules connected in series should:
be grouped as one using ISOCOMM WebTool.
have the same module configuration.
have the terminals connected in series.
have each module’s “REMOTE_SENSE_+” connected to its own positive output terminal.
have each module’s “REMOTE_SENSE_-” connected to its own negative output terminal.
connect external reverse biased anti-parallel diode to each module output.
Table 4-18 list recommend diodes for each module.
iHP Manual 73 | P a g e
iHP Owners Manual
Table 4-18
Model
Min Voltage
Rating (V)
Min Current
Rating (A)
Maximum Vf
Use Below Recommended Device or
its Equivalent
12V
45
300
0.9V @ 160A (Tj =
125degC)
IXYS: DSS 2x160-0045A (45V
2x160A)
24V
45
200
0.9V @ 160A (Tj =
125degC)
IXYS: DSS 2x160-0045A (45V
2x160A)
48V
100
120
0.7V @ 80A (Tj =
125degC)
STMicroelecronics: STPS160H100TV
(100V 2x80A)
80V
150
80
1.5V @ 50A (Tj =
125degC)
STMicroelecronics: STTH10002TV1
(200V 2x50A)
125V
200
50
1.5V @ 50A (Tj =
125degC)
STMicroelecronics: STTH10002TV1
(200V 2x50A)
200V
400
30
1.5V @ 60A (Tj =
125degC)
STMicroelecronics: STTH120R04TV1
(400V 2x60A)
250V
400
30
1.5V @ 60A (Tj =
125degC)
STMicroelecronics: STTH120R04TV1
(400V 2x60A)
To change Group Module output voltage, the user needs to send below B1h (VREF) command using Group
Device address.
Device Address
Module Command
Data
<Group Number>
B1h
< Data is the Set Voltage>
*Before writing to this command, please ensure that the Group Address Write Protect (10h) is disabled.
The desired output voltage setting should be set to the desired output voltage at the load.
Series Operation DVS “Data” = Total Output Voltage of the Series Module connection.
For example, when setting four modules in series to obtain an output voltage of 80V, the group command B1h
should be set to 80V. Internally ISOCOMM will divide the set voltage by the number of modules and will set
each module to an output voltage of 20V.
The module’s output voltage can be programmed within 5% to 120% of the nominal output voltage. Setting
the VREF beyond the acceptable range, but not to 0V, the module will trigger a Status CML fault and will retain
the existing value. Setting the VREF value to 0V, the module will enter standby mode. To enable the module
again, set VREF to an acceptable range.
During group module change of output voltage:
All modules in the group will adjust based on the computed output voltage for each module.
OVP is temporary disabled until the output voltage level increases to the commanded VREF.
UVP is temporary disabled until the output voltage level decreases to the commanded VREF.
iHP Manual 74 | P a g e
iHP Owners Manual
IREF will automatically readjust if the voltage request is above the nominal output voltage. This will
prevent module to operate above the rated power.
4.4.3.2.1 DVS Series Connection Protection
Each individual module in a group will protect independently, as stated in Section 4.4.1.
4.4.3.3 DCS Parallel Connection
All modules connected in parallel should:
be grouped as one using ISOCOMM WebTool
have the same module configuration.
have output positive terminals connected in parallel.
have output negative terminals connected in parallel.
The module will clamp into constant voltage source if the requested IREF or load resistance increases enough
to cause the output voltage to be greater than the VREF. To operate the group in this condition:
All Module REMOTE_SENSE_+ should be star connected and connected to the desired point of
regulation.
All Module REMOTE_SENSE_- should be star connected and connected to the desired point of
regulation.
All Module ISHARE signal (Module’s J2 pin 10) should be star connected.
All Module D_RTN signal (Module’s J2 pin 4) should be start connected.
To change module output current, send below B2h (IREF) command using Group Device Address.
Device Address
Module Command
Data
<Module Slot Address>
B2h
< Data is the Set Current>
*Before writing to this command, please ensure that the Group Address Write Protect (10h) is disabled.
The desired output current setting should be set to the desired output current at the load.
Parallel Operation DCS “Data” = Total Output Current of the Parallel Module connection.
For example, when setting four modules in parallel to obtain an output current of 100A, the group command
B1h should be set to 100A. Internally ISOCOMM will divide the set current by the number of module and will
set each module output current to 25A.
The module’s output current can be programmed within 0% to 100% of the nominal output current. Setting
the IREF outside the valid range will cause the modules to trigger an INVALID PGM RANGE fault
(STAUS_MFR_SPECIFIC) and turn the output of the modules off. Set the command within valid range to
recover.
4.4.3.3.1 DCS Parallel Connection Protection
Each individual module in a group will protect independently and will protect as stated in Section 4.4.2.
iHP Manual 75 | P a g e
iHP Owners Manual
4.5 Analog Control
The module’s output (output voltage or current) can be controlled using an external supply connected to the
modules’ IPROG (0-10VEXT_IPROG or 0-5VEXT_IPROG) or VPROG (0-10VEXT_VPROG or 0-5VEXT_VPROG)
signal. Definition of module is in Appendix B.2 Module Command. Definition of ISOCOMM Command is in
Appendix B.3 ISOCOMM Command.
4.5.1 Analog Voltage Source (AVS)
In this operating mode, the user has the capability to control the output voltage using analog means. For AVS,
user can control the output using the 0-5VEXT_VPROG or 0-10VEXT_VPROG input.
To change to Analog Voltage Source (AVS) mode, the user needs to send the below commands to ISOCOMM.
Device Address
Command
Data1
Data2
00h
D3h
<Module slot or Group #>
02h
*Before writing to the ISOCOMM, please ensure that the ISOCOMM Command Write Protect (01h) is disabled.
Where: Data1 please refer to ISOCOMM Command Table.
Data2 “0x02h” signifies Analog Programmed Voltage Source.
After sending ISOCOMM Command D3h, the module will momentarily shutdown, re-initialize and restart. This
will happen for 1.5 seconds. Since the module will re-initialize, the Module Operational Command (01h) and
Module Write Protect Command (10h) will be set to enable. The module output voltage will be based on the
VPROG signal. Table 4-19 lists the status of the module command and the functionality of the commands when
configuring the module to DCS mode.
iHP Manual 76 | P a g e
iHP Owners Manual
Table 4-19
Module
Command
Command Name
Functional
in AVS
Upon Change to AVS
B1h
VREF
No
Fix to Module's Nominal Output Voltage
B2h
IREF
Yes
During 52h set to Constant Current,
value will be set based on Module
Command 4Dh and nominal output
current.
During 52h set to Latch Type, value will be
fixed to 120% of the nominal output
current.
48h
OV_FAULT_LIMIT_MULTIPLIER
No
No change from previous value
49h
OV_WARN_LIMIT_MULTIPLIER
No
No change from previous value
4Bh
UV_FAULT_LIMIT_MULTIPLIER
No
No change from previous value
4Ch
UV_WARN_LIMIT_MULTIPLIER
No
No change from previous value
4Dh
OC_FAULT_LIMIT_MULTIPLIER
Yes
No change from previous value
52h
OC_RESPONSE_TYPE
Yes
No change from previous value
B5h
SET_VOLTAGE_RISE_SETTING
No
No change from previous value
B6h
SET_CURRENT_RISE_SETTING
No
No change from previous value
B7h
SET_IO_ACTIVE_LEVEL_LOGIC
Yes
No change from previous value
B8h
SET_MODULE__LOAD_TYPE
Yes
Default to capacitive load type Data “02h”
BAh
ANALOG_FILTER_ENABLE
Yes
No change from previous value
*Functional: If Yes, command register is operational during the module mode.
If No, command register is not operational during the module mode
To change the output voltage using 0-10VEXT_VPROG, apply 0-10V across the connector J1’s pin 1 (0-
10VEXT_VPROG) and pin 8 (SYS_RTN) to get a corresponding output voltage from 5% to 120% of the nominal
output voltage. Applied voltage 0V – 0.42V yields 5% nominal output voltage.
To change the output voltage using 0-5VEXT_VPROG, apply 0-5V across the connector J1’s pin 2 (0-
5VEXT_VPROG) and pin 8 (SYS_RTN) to get a corresponding output voltage from 5% to 120% of the nominal
output voltage. Applied voltage 0V – 0.21V yields 5% nominal output voltage.
Note: IREF will automatically readjust if the voltage request is above the nominal output voltage.
Please note that 0-10VEXT_IPROG and 0-5VEXT_IPROG cannot be used simultaneously:
If the user will use 0-10VEXT_VPROG, 0-5VEXT_VPROG should be floating.
If the user will use 0-5VEXT_VPROG, 0-10VEXT_VPROG should be floating.
iHP Manual 77 | P a g e
iHP Owners Manual
4.5.1.1 AVS Protection Modes
When the supply is in AVS mode, the output is protected against over current, short circuit, over voltage, and
under voltage faults. The behavior of the supply during an over current fault or short circuit fault is
dependent on whether IREF is set to constant current behavior or latch behavior. In constant current mode,
the module will attempt to operate at a constant current level while reducing the output voltage and in latch
mode the supply shut off. In the event of an overvoltage and under voltage faults the supply will shut down.
Please refer to Section 8 on how to clear the fault and power up the module after fault.
4.5.1.1.1 AVS Protection Over Current Response
Over current response mode will be set by Module Command 52h (OC_RESPONSE_TYPE). The two types of
response are Constant Current and Latch. The over current level will be based on Module Command 4Dh
OC_FAULT_LIMIT_MULTIPLIER setting.
Module Command 4Dh OC_FAULT_LIMIT_MULTIPLIER range is 50% to 105%
When 52h set to Constant Current Response, the module will enter constant current mode when load current
reaches the IREF value (B2h). The output voltage will decrease to maintain the load current at the current limit.
No fault reporting occurs during this condition.
The module will revert to normal operation when load current becomes less than IREF value (B2h).
The constant current setting, IREF, is dependent on the Vout setting (VREF).
When the:
Vo (VREF) is below or equal to the nominal voltage
IREF = (Inominal) * (OC_FAULT_LIMIT_MULTIPLIER)
Vo (VREF) is above the nominal voltage, the IREF, value is automatically reduced to maintain the supply
within the maximum peak power of the module
IREF = [ (Pnominal) * (OC_FAULT_LIMIT_MULTIPLIER)] / VREF
Note that the CC setting level, IREF, will be reflected on IREF (Module Command B2h).
When 52h set to Latch Type, the module will shut down when the output current reaches the latch level for
500msec and a fault status will be reported.
The Latch Current Level setting is dependent on the Vout setting (VREF).
When the:
Vo (VREF) is below or equal to the nominal voltage
Latch Current Level = (Inominal) * (OC_FAULT_LIMIT_MULTIPLIER)
iHP Manual 78 | P a g e
iHP Owners Manual
Vo (VREF) is above the nominal voltage, Latch Level value is automatically reduced to maintain the supply
within the maximum peak power of the module
Latch Current Level = [ (Pnominal) * (OC_FAULT_LIMIT_MULTIPLIER)] / VREF
Note that the latch setting level will NOT be reflected to IREF (Module Command B2h). Latch level can be
determined by computation as stated above.
4.5.1.1.2 AVS Short Circuit Protection
When 52h is set to Constant Current Response, the module will shut down when Vo is approximately less than
4% of the nominal for 2 seconds or more. A fault status will be reported.
When 52h set to Latch Type and an output short circuit occurs, the current level should exceed the latch
current level and the module will shut down. A fault status will be reported.
4.5.1.1.3 AVS Protection Over Voltage Protection (OVP)
Tracking over voltage protection Module Command 48h (OV_FAULT_LIMIT_MULTIPLIER) is not operational
during AVS. A Brick Wall OVP is operational during this mode. In Brick Wall OVP mode the limit is hard coded
in module firmware at the factory and cannot be changed. The module will shut down when the output
voltage reaches the Brick Wall OVP level. Brick Wall OVP level is specified in Section 4.1.2 and a fault status will
be reported.
4.5.1.1.4 AVS Protection Under Voltage Protection (UVP)
During ACS operating mode, under voltage protection is not functional.
4.5.2 Analog Current Source (ACS)
In this operating mode, the user has the capability to control the output current using analog means. For ACS,
the user can control the output using 0-5VEXT_IPROG or 0-10VEXT_IPROG
To change to Analog Current Source (ACS) mode, the user needs to send below commands to ISOCOMM.
Device Address
Command
Data1
Data2
00h
0xD3h
<Module slot or Group #>
0x0Ah
*Before writing to the ISOCOMM, please ensure that the ISOCOMM Command Write Protect (01h) is disabled.
Where: Data1 please refer to ISOCOMM Command Table.
Data2 “0x0Ah” signifies Analog Programmed Voltage Source.
After sending ISOCOMM Command D3h, the module will momentarily shutdown, re-initialize and restart. The
shutdown, re-initialize and restart process takes approximately 1.5 seconds. Since the module will re-initialize,
the Module Operational Command (01h) and Module Write Protect Command (10h) will be set to enable. The
module output current will be based on the IPROG signal.
iHP Manual 79 | P a g e
iHP Owners Manual
Table 4-20 lists the status of the module command and the functionality of the commands when configuring
the module to ACS mode.
Table 4-20
Module
Command
Command Name
Functiona
l in ACS
Upon Change to ACS
B1h
VREF
Yes
Fix to nominal
B2h
IREF
No
Fix to 0A
48h
OV_FAULT_LIMIT_MULTIPLIER
Yes
OVP will be based on the set VREF.
OVP multiplier no change from previous
value.
49h
OV_WARN_LIMIT_MULTIPLIER
Yes
OV Warning will be based on the set VREF.
OVP warning multiplier no change from
previous value.
4Bh
UV_FAULT_LIMIT_MULTIPLIER
No
No change from previous value
4Ch
UV_WARN_LIMIT_MULTIPLIER
No
No change from previous value
4Dh
OC_FAULT_LIMIT_MULTIPLIER
Yes
No change from previous value
52h
OC_RESPONSE_TYPE
Yes
Fix to Latch type
B5h
SET_VOLTAGE_RISE_SETTING
No
No change from previous value
B6h
SET_CURRENT_RISE_SETTING
No
No change from previous value
B7h
SET_IO_ACTIVE_LEVEL_LOGIC
Yes
No change from previous value
B8h
SET_MODULE__LOAD_TYPE
Yes
Last user B8h command.
Artesyn Factory setting of DCS is Resistive
(01h).
Bah
ANALOG_FILTER_ENABLE
No
No change from previous value
*Functional: If Yes, command register is operational during the module mode.
If No, command register is not operational during the module mode
To change the output current using 0-10VEXT_IPROG, apply 0-10V across connector J1’s pin 3 (0-
10VEXT_IPROG) and pin 8 (SYS_RTN) to get a corresponding output current from 0% to 100% of the rated
output current.
To change the output current using 0-5VEXT_IPROG, apply 0-5V across connector J1’s pin 4 (0-5VEXT_IPROG)
and pin 8 (SYS_RTN) to get a corresponding output current from 0% to 100% of the rated output current.
Please note that 0-10VEXT_IPROG and 0-5VEXT_IPROG cannot be used simultaneously:
If the user will use 0-10VEXT_VPROG, 0-5VEXT_VPROG should be floating.
If the user will use 0-5VEXT_VPROG, 0-10VEXT_VPROG should be floating.
iHP Manual 80 | P a g e
iHP Owners Manual
4.5.2.1 ACS Protection Modes
When the supply is in ACS mode, the supply limits the current to the IREF value and the voltage is limited by
the VREF value. Secondary output protection is provided in rare load conditions by the OC fault level and the
OV fault level. Please refer to Section 8 on how to clear the fault and power up the module after fault.
4.5.2.1.1 ACS Protection: Constant Voltage Clamp
There are conditions that can exist when the output voltage will be greater than the VREF level (B1h):
Fix load resistance and user increases the IPROG input.
Fix IPROG input setting and load resistance increases.
When module output voltage reaches the VREF level, the module will enter constant voltage clamp. This will
protect the system from continuous increase in output voltage. There will be no fault reporting during this
condition. To enter again to ACS, the user needs to decrease the IPROG input or decrease the load resistance.
For module software v04.10.00 and above, the user can update the Constant Voltage Clamp from nominal
voltage down to 5% of the nominal voltage of the module via Module Command B1h. For module software
below v04.10.00, Constant Voltage Clamp cannot be changed and is set to the nominal output voltage.
4.5.2.1.2 ACS Protection: Over Current Protection and Short Circuit Protection
During ACS, over current protection will be fix to “latch type” (52h). OC level will be based on Module
Command 4Dh OC_FAULT_LIMIT_MULTIPLIER setting.
Module Command 4Dh OC_FAULT_LIMIT_MULTIPLIER range is 50% to 105%
The module will shut down when the output current reaches the OC level and a fault status will be reported.
With Vo (VREF) below or equal to the nominal voltage, the latch level setting value is
Latch Level = (Inominal) * (OC_FAULT_LIMIT_MULTIPLIER)
Note that the latch setting level will NOT be reflected to IREF (Module Command B2h). Latch Level can be
determined by computation as stated above.
4.5.2.1.3 ACS Protection: Over Voltage Protection (OVP)
Over voltage protection level during ACS will be based on the OV Fault Limit Multiplier (48h) and VREF (B1h)
setting.
OV Level = (48h OV_FAULT_LIMIT_MULTIPLIER) x (B1h VREF)
4.5.2.1.4 ACS Protection: Under Voltage Protection (UVP)
During ACS operating mode, under voltage protection is not functional
4.5.3 Module Grouping for Series or Parallel Connection Analog Operation
Modules can be operated in Series or Parallel connection during analog mode. Below are list of possible series
or parallel connections:
iHP Manual 81 | P a g e
iHP Owners Manual
AVS parallel connection
AVS series connection
ACS parallel connection
To work properly, user needs to group the modules connected in parallel or series. To work properly, the
modules must be connected in parallel or series. Only modules of the same model can be connected in series
or in parallel. When a certain module will be included in the group, there are restrictions in place to protect
the user and system. Please refer to Section 5.1.5.2 for Module Grouping configuration and Section 6 for
Module Grouping details.
4.5.3.1 AVS Parallel Connection
All modules connected in parallel should:
be grouped as one using ISOCOMM WebTool.
have the same module configuration.
have positive terminals connected in parallel.
have negative terminals connected in parallel.
have “ISHARE” signals (Module’s J2 pin 10) star connected.
have “A_RTN” signals (Module’s J2 pin 4) star connected.
have “REMOTE_SENSE_+” signals star connected and connected to the desired point of regulation.
have “REMOTE_SENSE_-” signals star connected and connected to the desired point of regulation.
have “SYS_RTN” signals (Module’s J1 pin 8) star connected
have “0-10VEXT_VPROG” signals (Module’s J1 pin 1) star connected if system will be operating using 0-
10VEXT_VPROG.
have “0-5VEXT_VPROG” signal (Module’s J1 pin 2) signals star connected if system will be operating
using 0-5VEXT_VPROG.
Warning! - Module’s J2 signals and output voltage are isolated from module’s J1 signals.
4.5.3.1.1 AVS Parallel Connection Protection
Each individual module in a group will protect independently and will protect as stated in Section 4.5.1.
4.5.3.2 AVS Series Connection
All modules connected in series should:
be group as one using ISOCOMM WebTool
have the same module configuration.
have output terminals connected in series.
have each module’s “REMOTE_SENSE_+” connected to its own positive output terminal.
have each module’s “REMOTE_SENSE_-” connected to its own negative output terminal.
iHP Manual 82 | P a g e
iHP Owners Manual
have “0-10VEXT_VPROG” signals (Module’s J1 pin 1) star connected If user will operate using 0-
10VEXT_VPROG.
have “0-5VEXT_VPROG” signals (Module’s J1 pin 2) star connected if user will operate using 0-
5VEXT_VPROG.
connect external reverse biased (anti-parallel) diode to each module output.
Table 4-21 list recommend diodes for each module.
Table 4-21
Model
Min Voltage
Rating (V)
Min Current
Rating (A)
Maximum Vf
Use Below Recommended Device or
its Equivalent
12V
45
300
0.9V @ 160A (Tj =
125degC)
IXYS: DSS 2x160-0045A (45V
2x160A)
24V
45
200
0.9V @ 160A (Tj =
125degC)
IXYS: DSS 2x160-0045A (45V
2x160A)
48V
100
120
0.7V @ 80A (Tj =
125degC)
STMicroelecronics: STPS160H100TV
(100V 2x80A)
80V
150
80
1.5V @ 50A (Tj =
125degC)
STMicroelecronics: STTH10002TV1
(200V 2x50A)
125V
200
50
1.5V @ 50A (Tj =
125degC)
STMicroelecronics: STTH10002TV1
(200V 2x50A)
200V
400
30
1.5V @ 60A (Tj =
125degC)
STMicroelecronics: STTH120R04TV1
(400V 2x60A)
250V
400
30
1.5V @ 60A (Tj =
125degC)
STMicroelecronics: STTH120R04TV1
(400V 2x60A)
Warning! - Module’s J2 signals and output voltage are isolated from module’s J1 signals.
4.5.3.2.1 AVS Parallel Connection Protection
Each individual module in a group will protect independently and will protect as stated in Section 4.5.1.
4.5.3.3 ACS Parallel Connection
All Modules connected in parallel should:
be grouped as one using ISOCOMM WebTool
have the same module configuration.
iHP Manual 83 | P a g e
iHP Owners Manual
have positive terminals connected in parallel.
have negative terminals connected in parallel.
have “SYS_RTN” signals (Module’s J1 Pin8) star connected.
have “0-10VEXT_VPROG” signals (Module’s J1 Pin1) star connected if system will be operating using 0-
10VEXT_VPROG.
have “0-5VEXT_VPROG” signals (Module’s J1 Pin2) star connected if system will be operating using 0-
5VEXT_VPROG.
The module will clamp into constant voltage if the requested output current or load resistance increases and
causes the output voltage to be greater than the VREF. If operating from this condition connect:
All Module “REMOTE_SENSE_+” should be star connected and connected to the desired point of
regulation.
All Module “REMOTE_SENSE_-” should be star connected and connected to the desired point of
regulation.
All Module “ISHARE” signal (Module’s J2 pin 10) should be star connected.
All Module “A_RTN” signal (Module’s J2 pin 4) should be start connected.
Warning! - Module’s J2 signals and output voltage are isolated from module’s J1 signals.
4.5.3.3.1 AVS Series Connection Protection
Each individual module in a group will protect independently and will protect as stated in Section 4.5.2.
iHP Manual 84 | P a g e
iHP Owners Manual
Configuration
This section discusses user configurable parameters of iHP rack (ISOCOMM configuration) and iHP module.
Configuration settings can be accomplished using a computer to connect to the iHP unit.
5.1 ISOCOMM User Configurable Parameters
iHP rack configuration can be updated using Ethernet communication only. iHP racks have a built-in WebTool
to edit ISOCOMM configuration. The configuration can be changed using an internet browser. Recommended
internet browser is Google Chrome.
ISOCOMM WebTool is composed of different section. Each section will be discussed on succeeding pages.
Home section contains summary of the iHP rack’s network setting and the rack’s firmware versions,
and the iHP modules connected to the iHP rack with the module’s respective firmware version.
Network section contains communication and network configuration.
Rack section contains iHP rack configuration.
Module section contains commands necessary for grouping modules.
Firmware section contains information to perform a firmware update.
Maintenance section contains information to initiate System Reset.
To access the ISOCOMM WebTool, open the web browser and type the iHP rack IP address to access the
WebTool. The home page will be displayed.
iHP Manual 85 | P a g e
iHP Owners Manual
User needs to enter USERNAME and PASSWORD when accessing below section (applicable to ISOCOMM SW
v03.00.00)
Rack section
Module section
Firmware section
Maintenance section
iHP Manual 86 | P a g e
iHP Owners Manual
Default setting when shipped from Artesyn:
User Name: admin
Password: rtsn1234!
When the user changes a setting, press “Save” button and perform System Reset. “Save” button is applicable
only on the specific WebTool section. Meaning if user changes a parameter in a WebTool section, the “Save”
button must be pressed before going to another WebTool section.
System Reset is needed for the “Save” changes to take effect. System reset can be done by:
Recycling Input AC. Turning Off input AC for 10 seconds then turn-on.
Initiating “Reset System”. This button is in the Maintenance Section. Please refer to Section 5.1.7.
When user needs to perform changes in different WebTool section, user can change configuration then save
before going to another section. System Reset will be required to implement all changes in each WebTool
section.
The “Restore Previous Values” button will revert the change configuration value to the setting during the last
system initialization. This button is also applicable only on the specific WebTool section. Please take note that
this function restores ISOCOMM configuration only. After pressing “Restore Previous Values” button, the user
needs to press “Save” button and perform System Reset to ensure that the restore previous value will take
into effect.
iHP Manual 87 | P a g e
iHP Owners Manual
5.1.1 Home Section
The Home Section contains a general summary of the iHP unit.
WebTool Home section will display the following information
ISOCOMM MAC Address
IP Address
Comms Firmware version
PFC1 and PFC2 Firmware version
iHP Manual 88 | P a g e
iHP Owners Manual
5.1.1.1 Home Page ISOCOMM Section
5.1.1.2 Home Page Module Section
Each iHP rack slot’s module model number
Each iHP rack slot’s module firmware version
5.1.1.3 Home Page Racks Section
Racks connected (applicable to ISOCOMM SW v03.00.00)
This section will be active when Rack Synchronize OFF is enabled in WebTool Rack Configuration.
This function is needed during multi-rack operation. Multi-rack operation is discussed in Section 7.
This field contains:
IP address of the racks connected in multi-rack operation
Serial Number of the racks connected in multi-rack operation
Status of each rack connected in multi-rack operation (Good or Fault/Standby)
iHP Manual 89 | P a g e
iHP Owners Manual
In below screen shot, there are three iHP rack in multi-rack operation. The WebTool will display the IP address
of the other two racks connected.
5.1.2 Network Section
Network configuration can be done using this section in the WebTool. The Network Section contains the
following information:
Ethernet Settings
MAC Address
Current IP Address
Broadcast Address
DHCP Setting
Static IP Address (when DHCP is disable)
CAN/RS485 Settings
In the Network Section user can configure the following:
Enable/Disable DHCP
Static IP Address
CAN/RS485 Rack Address
iHP Manual 90 | P a g e
iHP Owners Manual
5.1.2.1 DHCP
This will allow user to enable or disable Dynamic Host Configuration Protocol.
Setting
Remarks
Enable
The router will automatically assign the IP address to the iHP rack.
Once the setting is activated, user will need to search for the IP address assigned by the
router.
Disable
IP address will be set to Static IP. User can update IP address in the “Static IP Address” field.
5.1.2.2 Static IP Address
This field will be used to enter user static IP address. This is applicable when the DHCP setting is disabled.
5.1.2.3 CAN/RS485 Setting
This field will be used to configure CAN / RS485 address.
A dropdown list will be available. Possible CAN / RS485 addresses are:
Address 0
Address 1
iHP Manual 91 | P a g e
iHP Owners Manual
Address 2
Address 3
Address 4
Address 5
CAN broadcast address is set to address seven. RS485 does not have any broadcast address.
5.1.3 Rack Section
Configuration of rack-related parameters can be updated in this WebTool section.
5.1.3.1 Internal Ambient Temperature OTP
This configuration allows the user to set for the desired rack’s internal ambient temperature in which the rack
will trigger the OTP.
The user can set the Ambient OTP from 0-70 degrees Celsius.
OT warning will be flagged when the temperature reaches Ambient OTP less 4°C.
iHP Manual 92 | P a g e
iHP Owners Manual
Ambient temperature monitoring is located on the front panel of iHP rack.
Once Ambient OTP is triggered, status will be reflected on the ISOCOMM command 7Dh
(STATUS_TEMPERATURE).
5.1.3.2 Power-Up Sequence
This configuration discusses the output status (on or off) during iHP power-up.
Power-up sequence can be configured as:
Wait for Power Switch
Straight ON
Wait for SW Command
Wait for Power Switch
Power Switch is located on the front panel of the iHP unit.
After turning-on the Input AC and ISOCOMM finishes its bootload process, modules will not turn-on.
Module will turn-on after pressing the Power Switch.
Power Switch will be operational after 20 seconds from the application of input AC.
Straight ON
After turning-on the Input AC and ISOCOMM finishes its bootload process, modules will turn-on
automatically.
Wait for SW Command
After turning-on the Input AC and ISOCOMM finishes its bootload process, modules will not turn-on.
User needs to send turn-on command via SW.
Send ISOCOMM Command: 10h Write_Protect Command; Data: 00h Command to disable
ISOCOMM write protect.
Send ISOCOMM Command: 01h Operational Command; Data: 80h Command to turn on the
module.
Note: Module turn-on will still be dependent on hardware inhibit or enable signals of iHP rack or iHP module.
5.1.3.3 INH0/EN0 TTL and INH1/EN1 TTL Function
This configuration allows the user to configure:
INH0/EN0 TTL signal (iHP Rack DSUB9 pin 5) as Inhibit Low or Enable Low function.
INH1/EN1 TTL signal (iHP Rack DSUB9 pin 4) as Inhibit High or Enable High function.
iHP Manual 93 | P a g e
iHP Owners Manual
Configuration
iHP Rack DSUB9
Module Status
Input to INH0/EN0
Pin
Input to INH1/EN1
Pin
INH0 & INH1
Shorted to GND
Floating
OFF
Shorted to GND
5V
OFF
Floating
Floating
ON
Floating
5V
OFF
INH0 & EN1
Shorted to GND
Floating
OFF
Shorted to GND
5V
OFF
Floating
Floating
OFF
Floating
5V
ON
EN0 & INH1
Shorted to GND
Floating
ON
Shorted to GND
5V
OFF
Floating
Floating
OFF
Floating
5V
OFF
EN0 & EN1
Shorted to GND
Floating
OFF
Shorted to GND
5V
ON
Floating
Floating
OFF
Floating
5V
OFF
5.1.3.4 Disable on 5V_STBY Fault
User can configure the iHP rack to disable the modules if 5V_Stby fault occurred.
Setting
Remarks
Enable
Once the 5V_Stby fault occurred, modules will be disabled.
Disable
Once the 5V_Stby fault occurred, modules are still enabled.
5V_Stby Faults
Out of regulation
Over Current / Short Circuit
5.1.3.5 Rack Synchronized Off
This function is needed during multi-rack operation. Multi-rack operation is discussed in Section 7.
iHP Manual 94 | P a g e
iHP Owners Manual
RACK Synchronized Off Setting
Remarks
Enable
Rack synchronize off is activated
Disable
Rack synchronize off is de-activated
Number of racks connected will be activated when the Rack Synchronized OFF is enabled. This parameter will
indicate how many racks should be synchronized. Allowable racks to be synchronized is up to six racks.
5.1.4 Module Section
In this section, user can configure multiple modules installed in the iHP rack as one.
iHP Manual 95 | P a g e
iHP Owners Manual
5.1.4.1 Module Synchronized OFF
This function will shut down all modules installed in an iHP rack when any module is at fault or in standby
mode.
User can configure this function.
Setting
Remarks
Enable
All modules installed in the iHP rack will shut down when any module is at fault or in standby
mode.
Disable
When at least one module is at fault or in standby mode, the remaining modules will still be
operational.
iHP Manual 96 | P a g e
iHP Owners Manual
It is required to enable the “Module Synchronized OFF” functionality when module is connected in parallel or
series.
5.1.4.2 Module Group
Modules need to be group as one during parallel or series connections. This function will treat all modules as
one.
Once grouped, the system will have the below added functions:
Single command for all modules in a group (limited command)
Single Register Status reporting for all modules in a group
Single Reporting of Vo, Io, and Po for all modules in a group
User will need to configure in the ISOCOMM WebTool, the group number, if the modules in the group are
connected in parallel or series, and which group the module should be included.
Note: Modules will be allowed to be included in one group only. Module grouping function is discussed in
Section 6.
5.1.5 Firmware Section
This section provides instruction for firmware upgrade of PFC and module devices.
Before upgrading the firmware, module outputs should be disconnected to system load. PFC can be
bootloaded with or without modules inserted to the iHP rack.
Procedure for firmware upgrade (PFC and Module):
Power on AC source based on the input configuration of the unit.
Unit will be operational after 20 seconds boot-up.
Open Google Chrome Browser.
Type the IP address of the iHP to proceed with the iHP WebTool page.
iHP Manual 97 | P a g e
iHP Owners Manual
1. Click “FIRMWARE” tab.
2. If asked for username and password, type below:
User Name: admin
Password: rtsn1234!
3. Upload the desired FW file. Click “Choose File.”
iHP Manual 98 | P a g e
iHP Owners Manual
4. Select firmware file then click “Open”. Firmware file extension name is “.S”
5. Click “Upload File”
iHP Manual 99 | P a g e
iHP Owners Manual
6. Once uploaded successfully, confirmation will be display as below.
7. Refresh WebTool.
8. The uploaded file should now be visible in the Available Firmware box.
9. Select the preferred device (i.e., PFC or Module 1 or Module 2, … or Module 8) to upgrade.
Module bootloading should be done per module, so you can only select one module at a time.
iHP Manual 100 | P a g e
iHP Owners Manual
10. Select the desired firmware to be bootloaded at the Available Firmware box. It should be highlighted
as below.
11. Click “Flash selected firmware” to start the bootloading. Bootloading progress will be displayed.
12. The WebTool will notify the user once the bootloading is completed.
13. To perform FW updates for other modules,
a. If FW file is present in the “Available Firmware” box section, repeat instructions 13-16.
b. If FW file is not yet present in the “Available Firmware” box section, repeat instructions 7-
16.
When user completes the bootload, proceed to instruction 18.
14. Turn-off Input AC for 10 seconds.
15. FW update finished.
16. Power-up Input AC again to check FW version.
iHP Manual 101 | P a g e
iHP Owners Manual
17. Go to WebTool Home page to check the FW version.
18. Turn-off Input AC. Firmware version checking is now complete.
Note: ISOCOMM WebTool will prevent module firmware from programming PFC devices.
ISOCOMM WebTool will prevent PFC firmware from programming module devices.
PFC and module configuration will not change after firmware upgrade.
5.1.6 Maintenance Section
This section contains provisions to reset the ISOCOMM.
iHP Manual 102 | P a g e
iHP Owners Manual
All changes in the configuration in the WebTool will take into effect after
AC recycles for 10 seconds.
Reset via pressing the “Reset System” button in the WebTool Maintenance Section
Once user presses the “Reset System” button:
All modules will shut down.
ISOCOMM will re-boot. ISOCOMM boot time is about 20 seconds.
System LED and Output LED will be off.
Power LED will be blinking green.
After 20 seconds, ISOCOMM is now configured to the new setting and operational.
Note: When “Reset System” is initiated, this will only reset the ISOCOMM.
5.2 iHP Module User Configurable Parameters
Definition of Module Command is located on Appendix B.2 Module Command.
Command
Description
01h
MODULE_OPERATION
48h
OV_FAULT_LIMIT_MULTIPLIER
49h
OV_WARN_LIMIT_MULTIPLIER
4Bh
UV_FAULT_LIMIT_MULTIPLIER
4Ch
UV_WARN_LIMIT_MULTIPLIER
4Dh
OC_FAULT_LIMIT_MULTIPLIER
52h
OC_RESPONSE_TYPE
B5h
SET_VOLTAGE_RISE_SETTING
B6h
SET_CURRENT_RISE_SETTING
B7h
SET_IO_ACTIVE_LEVEL_LOGIC
B8h
SET_MODULE_LOAD TYPE
BAh
ANALOG_FILTER_ENABLE
B1h
VREF
B2h
IREF
D3h
MODULE_CONFIG
D8h
VPROG_LOW_LIMIT
iHP Manual 103 | P a g e
iHP Owners Manual
D9h
IPROG_LOW_LIMIT
DAh
VREF_MAX_LIMIT
DBh
IREF_MAX_LIMIT
5.2.1 Module Command 01h: MODULE_OPERATION
Command to turn-off or turn-on the module.
Module Command 01h Data 80 – Module turn-on
Module Command 01h Data 00 – Module turn-off
5.2.2 Module Command 48h: OV_FAULT_LIMIT_MULTIPLIER
Command to configure the output over voltage level protection in percentage. Data settable between 120% to
130% of the set VREF.
The OV_FAULT_LIMIT_MULTIPLIER function is dependent on the module mode. Please refer to Section 4.3 for
the function of OV_FAULT_LIMIT_MULTIPLIER with respect to module mode.
OVP Level = VREF + (Nominal Voltage * (OV_FAULT_LIMIT_MULTIPLIER – 1))
Example
Module = 48V iHP Module
Module Nominal Voltage = 48V
Set VREF = 35V
OV_FAULT_LIMIT_MULTIPLIER = 125%
OVP Level = VREF + (Nominal Voltage * (OV_FAULT_LIMIT_MULTIPLIER – 1))
OVP Level = 35 + (48 * (1.25 – 1))
OVP Level = 47
5.2.3 Module Command 4Bh: UV_FAULT_LIMIT_MULTIPLIER
Command to configure the output under voltage level protection in percentage. Data settable between 80% to
90% of the set VREF. The UV_FAULT_LIMIT_MULTIPLIER function is dependent on the module mode. Please
refer to Section 4.3 for the function of UV_FAULT_LIMIT_MULTIPLIER with respect to module mode.
UVP Level = VREF - (Nominal Voltage * (1- UV_FAULT_LIMIT_MULTIPLIER))
Ex.
Module = 48V iHP Module
Module Nominal Voltage = 48V
Set VREF = 35V
OV_FAULT_LIMIT_MULTIPLIER = 85%
UVP Level = VREF - (Nominal Voltage * (1- UV_FAULT_LIMIT_MULTIPLIER))
UVP Level = 35 - (48 * (1 - 0.85))
iHP Manual 104 | P a g e
iHP Owners Manual
UVP Level = 27.8V
5.2.4 Module Command 4Dh: OC_FAULT_LIMIT_MULTIPLIER
Command to configure the output over current level protection in percentage. Data settable between 50% to
105% of the set IREF. The OC_FAULT_LIMIT_MULTIPLIER function is dependent on the module mode. Please
refer to Section 4.3 for the function of OC_FAULT_LIMIT_MULTIPLIER with respect to module mode.
Set Vo (VREF) is below or equal to the nominal voltage
OC Level = (Inominal) * (OC_FAULT_LIMIT_MULTIPLIER)
OC response will be
Ex.
Module = 48V iHP Module
Module Nominal Current = 62.5A
VREF = 48V
OC_FAULT_LIMIT_MULTIPLIER = 75%
OC Level = (Inominal) * (OC_FAULT_LIMIT_MULTIPLIER)
OC Level = (62.5) * (0.75)
OC Level = 46.875A
Latch or Constant Current over current response will be take into effect when output current reaches
46.875A.
Set Vo (VREF) is above the nominal voltage
OC level = [ (Pnominal) * (OC_FAULT_LIMIT_MULTIPLIER)] / VREF
OC response will be
Ex.
Module = 48V iHP Module
Module Nominal Current = 62.5A
VREF = 50V (VREF is above the nominal voltage 48V)
OC_FAULT_LIMIT_MULTIPLIER = 75%
OC level = [ (Pnominal) * (OC_FAULT_LIMIT_MULTIPLIER)] / VREF
OC level = [ (3000) * (0.75)] / 50
OC Level = 45A
Latch or Constant Current over current response will take into effect when output current reaches
46.875A.
5.2.5 Module Command 52h: OC_RESPONSE_TYPE
Command to configure over current response.
iHP Manual 105 | P a g e
iHP Owners Manual
Data 00h – Constant current over current response
Data 01h - Latch Type over current response
The OC_RESPONSE_TYPE function is dependent on the module mode. Please refer to Section 4.3 for the
function of OC_RESPONSE_TYPE with respect to module mode.
5.2.6 Module Command B7h: SET_IO_ACTIVE_LEVEL_LOGIC
Command used to set the logic of SYS_M_FAULT#, SYS_M_ENABLE#, and SYS_M_INHIBIT signals.
Bit
Data
Function
7
n/a
Reserved
6
n/a
Reserved
5
n/a
Reserved
4
n/a
Reserved
3
n/a
Reserved
2
1
SYS_M_FAULT# Logic High means module is at fault.
0
SYS_M_FAULT# Logic Low means module is at fault.
1
1
Module output will turn-off if SYS_M_INHIBIT is logic high.
0
Module output will turn-off if SYS_M_INHIBIT is logic low.
0
1
Module output will turn-on if SYS_M_ENABLE# is logic high.
0
Module output will turn-on if SYS_M_ENABLE# is logic low.
Please refer to Section 4.2.1.1 Module’s J1 Signal for the signal description and recommended external
circuitry for SYS_M_ENABLE#, SYS_M_FAULT#, and SYS_M_INHIBIT hardware signal.
5.2.7 Module Command B1h: VREF
This command has different function with respect to module mode.
iHP Manual 106 | P a g e
iHP Owners Manual
Module Mode
Module Command B1h Function
Digital Voltage Source
Output voltage of the module can be change using this command.
Digital Current Source
Functions as output voltage clamp level during current source operation.
Analog Voltage Source
Module below SW v04.15: Fix to nominal voltage. Cannot be changed.
Module SW v04.15 and above: Scaling
Analog Current Source
Functions as output voltage clamp level during current source operation.
The VREF function is dependent on the module mode. Please refer to Section 4.3 for the function of VREF with
respect to module mode.
iHP Manual 107 | P a g e
iHP Owners Manual
Module Group
Module Group function was designed to treat multiple modules in a rack as one.
The main function of module grouping is to provide a:
1. Single command for all modules in a group (limited command).
2. Single status reporting for all modules in a group.
3. Single reporting of Vo, Io, and Po for all modules in a group.
Modules are REQUIRED to be grouped as one during parallel or series connections.
Using a group address, the modules included in the group will receive the write command simultaneously.
Individual write command to a module is not allowed when a module belongs to a group. This is needed during
parallel or series operation in which the module should react simultaneously.
Ex.
Changing VREF to change the output voltage.
Changing IREF to change the output current.
User will need to configure in the ISOCOMM WebTool. Please refer to Section 5.1.5. Modules will be allowed
to be included in one group only.
6.1 Group Device Address
ISOCOMM SWv02.08.00 and below have four module groupings.
ISOCOMM SW v03.00.00 and onwards have seven module groupings.
Instead of using ISOCOMM or module device address to send WRITE or READ command, Group device
addresses are available. There are seven groupings available. Each group has a specific, unique device address.
Group Device Address
Group Number
18h
Group 1
19h
Group 2
1Ah
Group 3
1Bh
Group 4
1Ch
Group 5
1Dh
Group 6
1Eh
Group 7
iHP Manual 108 | P a g e
iHP Owners Manual
The group address will be used to send READ or WRITE commands to all modules included in the group. Only
one READ or WRITE command sent is needed to simultaneous command all modules in a group.
6.2 Group Initialization at Start up
Group initialization will take place after ISOCOMM boot sequence. If the grouping function is activated,
ISOCOMM will check the configuration of each module. Each specific configuration should be the same in each
module that belongs to a group. If there are discrepancies in the module configurations, all iHP modules in the
iHP rack will not be allowed to turn-on. ISOCOMM command 80h (MFR Status) low byte bit 4 will be asserted
(Group Mismatch Fault).
ISOCOMM will check if below configuration are the same for each module that belongs to a group.
Command
Command Name
01h
MODULE OPERATION
48h
OV_FAULT_LIMIT_MULTIPLIER
4Bh
UV_FAULT_LIMIT_MULTIPLIER
4Dh
OC_FAULT_LIMIT_MULTIPLIER
52h
OC_RESPONSE_TYPE
9Ah
MANUFACTURING MODEL
B1h
VREF
B2h
IREF
B5h
SET_VOLTAGE_RISE_SETTING
B6h
SET_CURRENT_RISE_SETTING
B7h
SET_IO_ACTIVE_LEVEL_LOGIC
B8h
SET_MODULE__LOAD_TYPE
BAh
ANALOG_FILTER_ENABLE
D3h
MODULE CONFIGURATION
6.3 Module within a Group Read/Write Command
User is ALLOWED to Read a specific module’s register when the module belongs to a group. User is NOT
ALLOWED to Write in any registers of a module when the module belongs to a group. If user needs to WRITE
to module’s register that belongs to a group, the user needs to ungroup that module.
6.4 Group Write Command
Please refer to Appendix B.2 for Module Command and Appendix B.3 for ISOCOMM Command.
iHP Manual 109 | P a g e
iHP Owners Manual
6.5 Accepted Group Commands using Group Device Address
Above commands have the same function as specified in Appendix B.2 Module Command. When users send
above WRITE command with Group address, all modules included in that Group will receive the WRITE
command at the same time.
6.6 Accepted Group Commands using ISOCOMM Device Address
Command
Command Name
D3h
MODULE_CONFIG
B5h
V Rise time
B6h
I Rise time
B8h
SET_MODULE__LOAD_TYPE
Above command functions are specified in Appendix B.3 ISOCOMM Command.
6.7 Group Status and Reporting
When reading STATUS and Reporting, device address of the group should be used.
Command
Command Name
Remarks
0x78h
STATUS_BYTE
ISOCOMM will read each module STATUS_BYTE reporting.
ISOCOMM will perform OR operation of STATUS_BYTE of all
modules belonging to the group.
0x79h
STATUS_WORD
ISOCOMM will read each module STATUS_WORD reporting.
ISOCOMM will perform OR operation of STATUS_WORD of all
modules belonging to the group.
Command
Command Name
01h
OPERATION
03h
CLEAR_FAULTS
10h
WRITE_PROTECT
48h
OV_FAULT_LIMIT_MULTIPLIER
4Bh
UV_FAULT_LIMIT_MULTIPLIER
4Dh
OC_FAULT_LIMIT_MULTIPLIER
52h
OC_RESPONSE_TYPE
B1h
VREF
B2h
IREF
B7h
SET_IO_ACTIVE_LEVEL_LOGIC
BAh
ANALOG_FILTER_ENABLE
iHP Manual 110 | P a g e
iHP Owners Manual
Command
Command Name
Remarks
0x7Ah
STATUS_VOUT
ISOCOMM will read each module STATUS_VOUT reporting.
ISOCOMM will perform OR operation of STATUS_VOUT of all
modules belonging to the group.
0x7Bh
STATUS_IOUT
ISOCOMM will read each module STATUS_IOUT reporting.
ISOCOMM will perform OR operation of STATUS_IOUT of all
modules belonging to the group.
0x7Ch
STATUS_INPUT
ISOCOMM will read each module STATUS_INPUT reporting.
ISOCOMM will perform OR operation of STATUS_INPUT of all
modules belonging to the group.
0x7Dh
STATUS_TEMPERATURE
ISOCOMM will read each module STATUS_TEMPERATURE
reporting.
ISOCOMM will perform OR operation of STATUS_TEMPERATURE of
all modules belonging to the group.
0x7Eh
STATUS_CML
ISOCOMM will read each module STATUS_CML reporting.
ISOCOMM will perform OR operation of STATUS_CML of all
modules belonging to the group.
0x80h
STATUS_MFR_SPECIFIC
ISOCOMM will read each module STATUS_MFR_SPECIFIC reporting.
ISOCOMM will perform OR operation of STATUS_MFR_SPECIFIC of
all modules belonging to the group.
0x8Bh
READ_VOUT
Group configured connection - Parallel:
ISOCOMM will read each module output voltage reporting.
ISOCOMM will average the reported output voltage of the
modules in the group.
Group configured connection - Series:
ISOCOMM will read each module output voltage reporting.
ISOCOMM will sum up each reported output voltage of the
modules in the group.
0x8Bh
READ_IOUT
Modules connected in Parallel:
ISOCOMM will read each module output current reporting.
ISOCOMM will sum each reported output current of the
modules in the group.
Modules connected in Series:
iHP Manual 111 | P a g e
iHP Owners Manual
Command
Command Name
Remarks
ISOCOMM will read each module output current reporting.
ISOCOMM will average the reported output current of the
modules in the group.
0x8Dh
READ_TEMPERATURE_1
ISOCOMM will read each module temperature reporting.
ISOCOMM will report the highest temperature reading of the
modules in the group.
0x96h
READ_POUT
ISOCOMM will read each module output power reporting.
ISOCOMM will sum up each module reported output power in a
group.
0x9Ah
MANUFACTURING
MODEL
ISOCOMM will report the modules Manufacturing Model.
iHP Manual 112 | P a g e
iHP Owners Manual
Multi-Rack Operation
Multi-rack operation is functional on ISOCOMM SW v03.00.00
Multi-rack operation connection is:
When the modules are inserted in different iHP rack and connected in series or parallel.
When the modules are inserted in different iHP rack and there is a need to synchronize turn-on or
turn-off of the modules.
During multi-rack operation, Rack Synchronization Off should be enabled. This function can be configured in
the ISOCOMM WebTool Rack section. The number of racks included in the multi-rack operation should be
selected. Rack Synchronization OFF is REQUIRED when modules in parallel or series are connected to different
iHP racks.
The main purpose of Rack Synchronization Off is to ensure that all modules in the multi-rack operation:
Turn-on simultaneously
Turn-off when there is at least one module at fault.
Turn-off when there is at least one module commanded to turn-off via hardware or software.
When Rack Synchronization Off Operation is enabled, Module Synchronization Off will be automatically
enabled, but requires each rack be connected via Ethernet communication as it uses Ethernet communication
to perform this function. All IP addresses of the iHP rack, router and PC should be the same except for the last
octet. For example, each IP address will start at 192.168.2.xxx and each iHP rack, router and PC will have a
unique value for xxx (except for 0 and 255)
The following diagram shows the system configuration for Rack Synchronization OFF Ethernet communication.
iHP Manual 113 | P a g e
iHP Owners Manual
Each rack will send status via the communication lines. Rack status during multi-rack operation can be either:
GOOD
FAULT/STANDBY
To have an iHP rack status “GOOD”, all of these conditions are met:
All modules included in the rack do not have any Latching Fault or Auto-recoverable Fault
iHP rack does not have any Latching Fault or Auto-recoverable Fault
All modules included in the rack are NOT in standby mode via
Using software Operational command.
Using module hardware signal (Module Enable or Module Inhibit signal).
Using iHP rack hardware signal (Global Enable/Inhibit signal).
If any below scenario occurred, the status “FAULT/STANDBY” will be reported by the iHP rack.
At least one module included in the rack has a Latching Fault or Auto-recoverable Fault
iHP rack has any Latching Fault or Auto-recoverable Fault
At least one module included in the rack is in standby mode via
Using software Operational command.
Using module hardware signal (Module Enable or Module Inhibit signal).
Using iHP rack hardware signal (Global Enable/Inhibit signal).
Using Power SW button located in the front panel.
7.1 During Turn-On
iHP rack with Rack Synchronization OFF enabled will communicate to each other via Ethernet. Each iHP rack
will get all the IP addresses (for Ethernet) of all rack with enabled Rack Synchronization OFF. This will be
recorded in the ISOCOMM WebTool. Aside from the communication address, the rack serial number will also
be recorded and shown in the ISOCOMM WebTool.
Ex. iHP rack with IP address: 192.168.2.100
Rack Synchronization OFF is ENABLED
Number of racks connected is three.
192.168.2.100 is included in the three iHP rack.
The remaining two will be reflected on 192.168.2.100 WebTool Home page.
iHP Manual 114 | P a g e
iHP Owners Manual
Each rack with enable Rack Synchronization Off will send its status via Ethernet communication. When the
status of all racks are “GOOD”, all module outputs will turn-on.
7.2 During Turn-off
o iHP rack with fault or standby will send a “FAULT/STANDBY” status via Ethernet. Once the iHP rack receives
the “FAULT/STANDBY” status, each iHP rack will shut down all modules. After this, the iHP rack with Fault
or Standby status will continue to broadcast the “FAULT/STANDBY” from time to time until the fault is
clear or standby mode is deactivated.
7.3 From Module Standby Activated to Module Standby De-activated.
When the module standby is de-activated, the iHP rack will send a status “GOOD” via Ethernet. When all iHP
racks in the multi-rack system have a status “GOOD”, all modules will turn-on.
7.4 From Fault to Fault Clear.
When the module recovers from fault condition latch condition, the iHP rack will send a status “GOOD” via
Ethernet. When all iHP racks in the multi-rack system have a status “GOOD”, all modules will turn-on.
7.5 Broadcast Command on Multi Rack Operation
Broadcast command is recommended when modules in each iHP Rack in Multi Rack operation are grouped;
see Section 6 on how to group modules.
Group address on each Rack should be the same in order to do broadcast command.
iHP Manual 115 | P a g e
iHP Owners Manual
Above sample Multi Rack operation is using 2 units of iHP 12KW Rack with two modules each inserted per
Rack.
The 2 modules, Module 1 & Module 2 are group in Group 1.
Broadcast address is set at 192.168.2.255.
Using Group 1 address, the modules included in the group will receive the write or read command
simultaneously.
iHP Manual 116 | P a g e
iHP Owners Manual
Faults and Output Recovery.
8.1 Module Fault
Fault
Description
Output Voltage Over
Voltage Fault.
This fault will be trigger when module output increases beyond or equal to the
set Over Voltage Fault level.
Over Voltage Fault level will be based on Module Command 48h.
Module will shut down.
Please refer to Section 8.2 for Module Clear Fault and Output Recovery.
Output Voltage Over
Voltage Warning.
This warning will be trigger when module output increases beyond or equal to
the set Over Voltage Warning level.
Over Voltage Warning level will be based on Module Command 49h.
Module will NOT shutdown.
Over Voltage Warning Status will be auto-clear when output voltage is below
the Over Voltage Warning level.
Output Voltage Under
Voltage Fault.
This fault will be trigger when module output decreases beyond or equal to
the set Under Voltage Fault level.
Under Voltage Fault level will be based on Module Command 4Bh.
Module will shut down.
Please refer to Section 8.2 for Module Clear Fault and Output Recovery.
Output Voltage Under
Voltage Warning
This fault will be trigger when module output decreases beyond or equal to
the set Under Voltage Warning level.
Under Voltage Warning level will be based on Module Command 4Bh.
Module will NOT shutdown.
Under Voltage Warning Status will be auto-clear when output voltage is above
the Under Voltage Warning level.
Iout Output Current Fault
Occurrence of module output short circuit, Latch type over current protection
and Primary side over current.
Module will shut down.
Please refer to Section 8.2 for Module Clear Fault and Output Recovery.
Iout Output Current
Warning
Asserted whenever the Iout Output Current Fault is triggered.
Warning will be cleared when Iout Output Current Fault is cleared.
IIN Overcurrent Fault
Occurrence of IIN over current Fault in the module input side.
Module will shut down.
Please refer to Section 8.2 for Module Clear Fault and Output Recovery.
IIN Overcurrent Warning
Asserted when IIN Over Current fault is triggered.
Warning will be cleared when IIN Output Current Fault is cleared.
Module Over Temperature
Fault
Occurrence of high temperature in the module. Unit will shut down once the
module internal device reaches the over temperature level.
Over Temperature Fault will be auto-cleared and module output will recover
once the temperature is below the temperature recovery level.
iHP Manual 117 | P a g e
iHP Owners Manual
Fault
Description
Please refer to Section 3.1.2 for iHP Module Configuration Default Settings for
the over temperature level and recovery.
Module Over Temperature
Warning
Occurrence of over temperature warning in the module. Unit will NOT
shutdown once the module internal device reaches the over temperature
warning level.
Warning will be cleared once the temperature reaches below the warning
level recovery.
Please refer to Section 3.1.2 for iHP Module Configuration Default Settings for
the over temperature warning level and recovery.
Invalid or Unsupported
Command Received
Module receives invalid or unsupported Command.
Module will NOT shutdown.
User needs to send Clear Fault command to module in order to remove the
fault.
Invalid or Unsupported
Data Received
Module receives invalid or unsupported data.
Module will NOT shutdown.
User needs to send Clear Fault command to module in order to remove the
fault.
Packet Error Check Failed
Module-ISOCOMM communication data error.
Module will NOT shutdown.
User needs to send Clear Fault command to module in order to remove the
fault.
Memory Error occur
Invalid module configuration setting. Module will not power-up.
Contact Customer Service.
DSP supply goes below
regulation
Module DSP supply is below the regulation level.
Module will shut down.
Please refer to Section 8.2 for Module Clear Fault and Output Recovery.
Internal COMMs Fault
Module Communication failure to ISOCOMMM.
Module will shut down.
Fault will be auto-clear and module output will recover once communication
between module and ISOCOMMM is established again.
Rail Imbalance Fault
Fault occurrence in the module primary side.
Protections are dependent on the module mode. Please refer to section 3.
8.2 Module Clear Fault and output Recovery
Methods of Module Clear Fault and Output Recovery are as follows:
1. Command 03h “CLEAR_FAULT”
iHP Manual 118 | P a g e
iHP Owners Manual
When this command is received by the module, the module clear all Faults in the Status Register.
Take note that this will just clear the fault in the status register. But, module will not power up
when the module shuts down due to fault.
2. Module HW signal “SYS_M_INHIBIT” and “SYS_M_ENABLE#”
Module Faults will be clear and module will re-start to power up again once user
Turn-off then turn-on the Module via Module “SYS_M_INHIBIT”
Turn-off then turn-on the Module via Module “SYS_M_ENABLE”
3. Module Operational Command
Module Faults will be clear and module will re-start to power up again once user send a Module Command
01h to turn-off module then Module Command 01h to turn-on.
4. iHP Rack Inhibit or Enable
Module Faults will be clear and module will re-start to power up again once user
Turn-off then turn-on the module via iHP rack “Global Inhibit/Enable Logic 1” signal
Turn-off then turn-on the module via iHP rack “Global Inhibit/Enable Logic 0” signal
5. ISOCOMM Operational Command
Module Faults will be clear and module will re-start to power up again once user send an ISOCOMM
Command 01h to turn-off module then ISOCOMM Command 01h to turn-on command.
8.3 PFC Fault
Fault
Description
AC UV Fault
AC is below the operating range of the unit. Unit will not turn-on.
Fault will be auto clear and unit will start up properly when the input AC is within
the operating range of the unit.
AC OV Fault
AC is above the operating range of the unit. Unit will not turn-on.
Fault will be auto clear and unit will start up properly when the input AC is within
the operating range of the unit.
PFC Over Temperature
Fault
Occurrence of high temperature in the PFC. Unit will shut down once the PFC
internal device reaches the over temperature level (110oC).
Over Temperature Fault will be auto-cleared and module output will recover once
the temperature is below the temperature recovery level (80oC).
PFC Over Temperature
Warning
Asserted whenever the PFC Over Temperature Fault is triggered.
Warning will be cleared when PFC Over Temperature Fault is cleared.
Invalid or Unsupported
Command Received
PFC receives invalid or unsupported Command.
PFC will NOT shutdown.
User needs to send Clear Fault command to PFC in order to remove the fault.
iHP Manual 119 | P a g e
iHP Owners Manual
Fault
Description
Invalid or Unsupported
Data Received
PFC receives invalid or unsupported Data.
PFC will NOT shutdown.
User needs to send Clear Fault command to PFC in order to remove the fault.
Packet Error Check
Failed
PFC-ISOCOMM communication data error.
PFC will NOT shutdown.
User needs to send Clear Fault command to PFC in order to remove the fault.
PFC Section 3 Fault
Occurrence of either AC OV, AC UV, Vbus OV, or Vbus UV Fault on PFC Section 3.
PFC Section 3 fault will be cleared when AC OV, AC UV, Vbus OV, or Vbus UV Fault
on PFC Section 3 are cleared.
PFC Section 2Fault
Occurrence of either AC OV, AC UV, Vbus OV, or Vbus UV Fault on PFC Section 2.
PFC Section 2 fault will be cleared when AC OV, AC UV, Vbus OV, or Vbus UV Fault
on PFC RAIL2 are cleared.
PFC Section 1Fault
Occurrence of either AC OV, AC UV, Vbus OV, or Vbus UV Fault on PFC Section 1.
PFC Section 1 fault will be cleared when AC OV, AC UV, Vbus OV, or Vbus UV Fault
on PFC Section 1 are cleared.
Differential Voltage
Protection
Occurrence of Voltage Differential between PFC Vbus.
Once trigger, the PFC will shut down after 3 seconds the PFC will restart again.
When the PFC re-starts and the voltage differential is gone, the Differential
Voltage Protection fault flag will be auto clear.
Vbus OVP
PFC has two levels of VBus OVP, 1st level and 2nd level OVP.
1st level OVP is latch mode if Vbus voltage hits the first level OVP for five
consecutive times. If the 1st level OVP is hit for not more than four consecutive
times, OVP counter will reset and OVP fault will auto-clear.
2ndlevel OVP is a latch-type fault which means PFC will shut down upon hitting the
2nd OVP level.
Please refer to Section 8.4 for the clear fault and output recovery.
Vbus UVP
This fault will be trigger when PFC Output Vbus level hits the Vbus UV level.
Unit will shut down.
Please refer to Section 8.4 for the clear fault and output recovery.
iHP Manual 120 | P a g e
iHP Owners Manual
8.4 PFC Clear Fault and Output Recovery
Methods of PFC Clear Fault and Output Recovery are as follows
1. PFC Command 03h “CLEAR_FAULT”
When this command is received by the PFC, the PFC will clear all faults in the PFC Command
Status. Take note that this will just clear the fault in the PFC status register. PFC will not power
unless the cause of fault/s were removed and input AC recycling is done.
2. Recycling of Input AC. Turning off input AC for 10 seconds then turn-on.
PFC Fault can be cleared and output will recover after recycling of input AC.
iHP Manual 121 | P a g e
iHP Owners Manual
8.5 ISOCOMM Fault
Fault
Description
Ambient Over
Temperature Fault
Occurrence of high ambient temperature in the iHP rack.
All modules in the iHP rack will shut down once the ambient temperature
reaches the over temperature level.
Over Temperature Fault will be auto-cleared and module output will recover
once the temperature is below the set ambient over temperature less 5oC.
Please refer to Section 5.1.4.1 for the ambient over temperature level setting
and configuration.
Ambient Over
Temperature Warning
Occurrence of ambient over temperature warning in the iHP rack.
Unit will Not shutdown once the ambient over temperature warning level
reach.
Ambient Over Temperature Warning level is 5°C below Ambient Over
Temperature Fault level and it is auto-recoverable fault.
Invalid or Unsupported
Command Received
ISOCOMM receives invalid or unsupported Command for the ISOCOMM and
Modules.
Module/s will NOT shutdown.
User needs to send Clear Fault command in order to remove the fault.
Invalid or Unsupported
Data Received
Module receives invalid or unsupported Data for the ISOCOMM.
Module/s will NOT shutdown.
User needs to send Clear Fault command in order to remove the fault.
GROUP mismatched
One or more modules in a group do not have the same configuration. Please
refer to Section 6 for the list of module critical configurations that are being
checked by ISOCOMMM.
Module Communication
Error
ISOCOMM to Module Communication failure.
Module/s will NOT shutdown.
Please refer to Section 8.6 for the clear fault and output recovery.
PFC Communication Error
ISOCOMM to PFC Communication failure.
Module will shut down.
Fault is auto-recoverable. Please refer to Section 8.6 for the clear fault and
output recovery.
iHP Manual 122 | P a g e
iHP Owners Manual
Fault
Description
Module Synchronize Off
Occurrence of any fault in a module when user configurable parameter
“Module Synchronize OFF” is enabled.
Module/s will shut down.
Please refer to Section 8.6 for the clear fault and output recovery.
5V Standby Error
Occurrence of undervoltage & overvoltage on 5V Standby.
Module/s will shut down if user configurable parameter “Disable on 5v_STBY
Fault” is enabled else modules will continue to power up.
Please refer to Section 8.6 for the clear fault and output recovery.
Fan 1 Fault
Occurrence of Fan1 Failure.
Module/s will shutdown
Please refer to Section 8.6 for the clear fault and output recovery.
Fan 2 Fault
Occurrence of Fan2 Failure.
Module/s will shutdown
Please refer to Section 8.6 for the clear fault and output recovery.
Fan 3 Fault
Occurrence of Fan3 Failure.
Module/s will shutdown
Please refer to Section 8.6 for the clear fault and output recovery.
Fan 4 Fault
Occurrence of Fan4 Failure.
Module/s will shutdown
Please refer to Section 8.6 for the clear fault and output recovery.
8.6 ISOCOMM Clear Fault and Output Recovery
Methods of Module Clear Fault and Output Recovery are as follows:
1. ISOCOMM Command 03h “CLEAR_FAULT”
When this command received by the ISOCOMM, the ISOCOMM clears all faults in the ISOCOMM
Command Status. The ISOCOMM will re-start to power-up after the fault is clear.
2. ISOCOMM Fault can be cleared and output will recover after initiating System Reset using the
ISOCOMM WebTool. (Please refer to Section 5.1.6)
iHP Manual 123 | P a g e
iHP Owners Manual
3. ISOCOMM Fault can be cleared and output will recover after turn-off, then turn-on the iHP unit
using Front Panel STBY Switch.
iHP Manual 124 | P a g e
iHP Owners Manual
Accepted iHP Configuration
iHP power system is a configurable power supply. Modules can be configured in series or in parallel operation.
There are safety considerations to observe when modules are configured. Modules can be categorized into
Safety Extra Low Voltage (SELV) or Non–Safety Extra Low Voltage (non-SELV).
Module categories based on maximum voltage being offered:
Safety Extra Low Voltage (SELV)
73-936-0012
73-936-0024
73-936-0048
Non –Safety Extra Low Voltage (Non-SELV)
73-936-0080
73-936-0125
73-936-0200
73-936-0250
9.1 Module Stand-Alone Configuration
Modules can be used independently in the iHP rack. SELV and Non-SELV modules can be co-located
in a single iHP rack to meet Means of Operator Protection (MOOP) medical safety spacing provided
that co-located module series connected should have a total output voltage of equal or less than
800V.
Module
Module Maximum Vo
Meets Safety Spacing
73-936-0012
14.4V
Medical MOOP
73-936-0024
28.8V
Medical MOOP
73-936-0048
57.6V
Medical MOOP
73-936-0080
96V
Medical MOOP
73-936-0125
150V
Medical MOOP
73-936-0200
240V
Medical MOOP
73-936-0250
300V
Medical MOOP
SELV modules cannot be co-located with above 800V output (series connected module).
iHP Manual 125 | P a g e
iHP Owners Manual
Stand-alone Operation Safety Accessibility Restrictions
Section
SELV Modules
Non-SELV Modules
All Modules in a
Single is non-SELV
With Series Modules that as a
Total Output Voltage of 60V
Isolated Secondary
Signal Output
Safe to Access
Safe to Access
Safe to Access
Secondary Signal Output
Safe to Access
Not Safe to Access
Not Safe to Access
Requires Enclosure for safety
protections
Requires Enclosure for
safety protections
Secondary Power
Output
Safe to Access
Not Safe to Access
Not Safe to Access
Requires Enclosure for safety
protections
Requires Enclosure for
safety protections
9.2 Parallel Configuration
Inter Rack Module parallel operation is acceptable (up to 6 iHP racks) and only same type of modules
can be connected in parallel. SELV and Non-SELV modules can be co-located in a single iHP rack to
meet Medical MOOP safety spacing provided that co-located module series connected should have a
total output voltage of equal or less than 800V.
Module
Module Maximum Vo
Meets Safety Spacing
73-936-0012
14.4V
Medical MOOP
73-936-0024
28.8V
Medical MOOP
iHP Manual 126 | P a g e
iHP Owners Manual
73-936-0048
57.6V
Medical MOOP
73-936-0080
96V
Medical MOOP
73-936-0125
150V
Medical MOOP
73-936-0200
240V
Medical MOOP
73-936-0250
300V
Medical MOOP
SELV Module cannot be co-located with above 800V output (series connected module).
iHP rack setting during Inter Rack Parallel Operation.
MODULE SYNCRONIZED Off should be enable
Module Grouping should be the same in each rack
RACK SYNCRONIZED OFF should be enable
Parallel Operation Safety Accessibility Restrictions
Section
SELV Modules
Non-SELV Modules
All Modules in a
Single is non-SELV
With Series Modules that as a
Total Output Voltage of 60V
Isolated Secondary
Signal Output
Safe to Access
Safe to Access
Safe to Access
Secondary Signal Output
Safe to Access
Not Safe to Access
Not Safe to Access
Requires Enclosure for safety
protections
Requires Enclosure for
safety protections
Secondary Power
Output
Safe to Access
Not Safe to Access
Not Safe to Access
Requires Enclosure for safety
protections
Requires Enclosure for
safety protections
9.3 Series Configuration
Inter Rack Module series operation is acceptable. SELV modules cannot be co-located from series
connected module with greater than 800V output. Same type of modules can be series connected
with below restriction.
Module
Module can be Series up to
Meets Safety Spacing
SELV Modules
300Vdc (max)
Medical MOPP
SELV Modules
400Vdc (max)
Medical MOOP and ITE
Non-SELV Modules
600Vdc (max)
Medical MOPP
Non-SELV Modules
800Vdc (max)
Medical MOOP
Non-SELV Modules
1000Vdc (max)
ITE
iHP rack setting during Inter Rack Series Operation.
MODULE SYNCRONIZED Off should be enable
iHP Manual 127 | P a g e
iHP Owners Manual
Module Grouping should be the same in each rack
RACK SYNCRONIZED OFF should be enable
Series Operation Safety Accessibility Restrictions
Secondary Signal and Power Output
Section
Series up to
300Vdc
(MOPP)
Series up to
400Vdc
(MOOP & ITE)
Series up to
600Vdc
(MOPP)
Series up to
800Vdc
(MOOP)
Series up to
1000Vdc
(ITE)
Secondary Signal
Output
Safe to access if the total output voltage is equal or less than 60V
Not safe to access if the total output voltage is more than 60V.
Requires Enclosure for safety protections
Secondary Power
Output
Safe to access if the total output voltage is equal or less than 60V
Not safe to access if the total output voltage is more than 60V.
Requires Enclosure for safety protections
iHP Manual 128 | P a g e
iHP Owners Manual
Isolated Secondary Signal Output
Series
Configuration
ISOLATED SECONDARY Signal Output
Safe to Access
Not Safe to Access Requires Enclosure
Maximum Vo of
Series Connected
Module
Co-located Module
Maximum Vo of Series
Connected Module
Maximum Vo of
Series Connected
Module
Co-located Module
Maximum Vo of Series
Connected Module
SELV Module
300V
Medical MOPP
<= 300V
<= 300V
> 300V
> 300V
SELV Module
400V
Medical MOOP
& ITE
<= 400V
<= 400V
> 400V
> 400V
Non-SELV
Module 600V
Medical MOPP
<= 600V
<= 600V
> 600V
> 600V
Non-SELV
Module 800V
Medical MOOP
<= 800V
<= 800V
> 800V
> 800V
Non-SELV
Module 1000V
ITE
N/A
N/A
Not Safe to Access
iHP Manual 129 | P a g e
iHP Owners Manual
Troubleshooting
Use below table as an aid in troubleshooting iHP system.
Symptom
Check
Action
No Output.
All front panel LEDs are OFF.
Is the input wire defective?
Check continuity or measure input
voltage on the iHP input terminal
block. Replace if necessary.
No Output.
Front panel POWER LED is Solid
Red; two other LEDs are OFF.
Is the AC input voltage within
range?
Refer to iHP datasheet for correct
input voltage. Connect to
appropriate input voltage.
No Output.
Front panel POWER LED is Amber;
two other LEDs are OFF.
Have you press the front panel
STBY switch?
Press front panel STBY switch.
No Output.
Modules are grouped.
Do all modules have the same
configurations (discussed on
Section 6)?
Adjust the configurations so as all
modules in each group have the
same settings.
No Output.
All front panel LEDs are GREEN.
What is the module operating
mode?
Read the Module operating mode
by issuing command D3h on
modules.
Digital current source (08h)
operating mode by default has a
0A output.
No Output.
Front panel POWER LED is Solid
Green; OUTPUT LED is Blinking
Green & SYSTEM STATUS LED is
OFF.
Is INH0 pulled to ground or INH1 is
pulled to 5V?
Toggle the INH switch.
Fail to communicate with the Unit
via Ethernet.
Is the unit set in Static IP Mode?
Correct default static address of
iHP system is 192.168.2.100.
Is your PC used for communicating
with iHP system is set to Static?
Set your PC to static IP.
Is the unit set in DHCP IP Mode?
Find the correct IP address of your
unit by accessing the Router
settings. If you fail to find the
DHCP IP address of the unit, you
have an option to go back to Static
IP default address by pressing the
LAN reset.
Fail to change the Module
Operating Mode of Module from
one mode to another.
Have you send the correct
commands to change the Mode of
Operation?
Refer to Section 4.4 and Appendix
B.3. ISOCOMM command D3h.
Have you send command to
disable the "Write_Protect" 10h of
ISOCOMM?
Refer to Section 4.4 and Appendix
B.3. ISOCOMM command D3h.
iHP Manual 130 | P a g e
iHP Owners Manual
Symptom
Check
Action
Module output out of regulation
during DVS mode, no faults
reported except Module
Power_Good# (79h 0008h
reading)
Have you check reported current
or output loading?
Adjust output loading as module
may have entered current limit.
Module output voltage stuck at
around 5% level during AVS mode,
no faults reported
Have you check if connector on
location J1 is properly connected?
Measure voltage right at the pin of
J1 connector and address
connection issue if necessary.
Have you check 0-10VEXT_VPROG
or 0-5VEXT_VPROG input voltage
Module output current stuck at
low level (near 0) during ACS
mode, no faults reported
Have you check if connector on
location J1 is properly connected?
Measure voltage right at the pin of
J1 connector and address
connection issue if necessary.
Have you check 0-10VEXT_IPROG
or 0-5VEXT_IPROG input voltage?
iHP Manual 131 | P a g e
iHP Owners Manual
Appendix A – LED
iHP Front Panel LED
iHP front panel LEDs are composed of
Power LED
Output LED
Status LED
Please see below front panel LED response
Condition
POWER LED
OUTPUT LED
SYSTEM STATUS LED
No AC
OFF
OFF
OFF
ISOCOMM Start-Up Boot Load
BLINKING GREEN
OFF
OFF
SLEEP Mode (ON/OFF switch)
AMBER
OFF
OFF
Global Inhibit
SOLID GREEN
BLINKING GREEN
OFF
AC GOOD
SOLID GREEN
X
X
AC FAULT (OV, UV)
SOLID RED
OFF
SOLID RED
Output GOOD
SOLID GREEN
SOLID GREEN
SOLID GREEN
Auto-recoverable Fault (OTP)
SOLID GREEN
OFF
SOLID AMBER
Latching Fault (OVP, UVP) or
Internal Fault
SOLID GREEN
OFF
SOLID RED
FAN FAIL
SOLID GREEN
OFF
BLINKING RED
BOOTLOADING
X
OFF
BLINKING AMBER
iHP Manual 132 | P a g e
iHP Owners Manual
Appendix B –COMMAND
B.1 PFC Command
To convert Linear Data Format to “real world value”, please refer to Appendix B.4
To convert Direct Data Format to “real world value”, please refer to Appendix B.5
PFC Command Definition
Command
Code
Command Name
Definition
03h
CLEAR_FAULTS
Same as standard PMBUS CLEAR_FAULT Register.
To remove the warning or fault bits set in the status register, User
need to send CLEAR_FAULT command.
10h
WRITE_PROTECT
Same as standard PMBUS_WRITE_PROTECT Register.
Command used to Enable or Disable writing to the module
registers.
This will prevent accidental writing to the module.
Data: 80h – Disable all write except to the
WRITE_PROTECT command.
Data: 00h – Enable writes to all commands.
78h
STATUS_BYTE
Same as standard PMBUS_STATUS_BYTE Register.
Returns one byte of information with the summary of the most
critical faults.
Please see below Listing of STATUS_BYTE supported bits:
Bit #
Status Bit Name
Supported
7
BUSY
No
6
OFF
Yes
5
VOUT_OV_FAULT
Yes
4
IOUT_OC_FAULT
No
3
VIN_UV_FAULT
Yes
2
TEMPERATURE
Yes
1
CML
Yes
0
NONE OF THE ABOVE
No
79h
STATUS_WORD
Same as standard PMBUS_STATUS_WORD Register.
Returns two bytes of information with the summary of the unit’s
faults condition. Based on the information, user can get more
information by reading the appropriate status registers.
The low byte of the STATUS_WORD is the same register as the
STATUS_BYTE command.
Please see below Listing of STATUS_WORD supported bits:
LOW BYTE
Please refer to Command Code 0x78h STATUS_BYTE
HIGH BYTE
iHP Manual 133 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
Bit #
Status Bit Name
Supported
7
VOUT
Yes
6
IOUT/POUT
Yes
5
INPUT
Yes
4
MFR_SPECIFIC
Yes
3
POWER_GOOD#
Yes
2
FANS
No
1
OTHER
No
0
UNKNOWN
No
7Ah
STATUS_VOUT
Same as standard PMBUS_STATUS_VOUT Register.
Command returns one data byte with contents as follows:
Bit #
Status Bit Name
Supported
7
VOUT Overvoltage Fault
Yes
6
VOUT Overvoltage Warning
Yes
5
VOUT Undervoltage Warning
Yes
4
VOUT Undervoltage Fault
Yes
3
VOUT Max Warning
No
2
TON Max Fault
No
1
TON Max Warning
No
0
VOUT Tracking Error
No
7Ch
STATUS_INPUT
Same as standard PMBUS_STATUS_INPUT Register.
Command returns one data byte with contents as follows:
Bit #
Status Bit Name
Supported
7
VIN Overvoltage Fault
Yes
6
VIN Overvoltage Warning
Yes
5
VIN Undervoltage Warning
Yes
4
VIN Undervoltage Fault
Yes
3
Unit is Off for Insufficient Input Voltage
No
2
IIN Overcurrent Fault
No
1
IIN Overcurrent Warning
No
0
PIN Overpower Warning
No
7Dh
STATUS_TEMPERATURE
Same as standard PMBUS_STATUS_TEMPERATURE Register.
Command returns one data byte with contents as follows:
Bit #
Status Bit Name
Supported
7
OT_FAULT
Yes
6
OT_WARNING
Yes
5
UT_WARNING
No
4
UT_FAULT
No
iHP Manual 134 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
3
Reserved
No
2
Reserved
No
1
Reserved
No
0
Reserved
No
7Eh
STATUS_CML
Same as standard PMBUS_STATUS_CML Register.
Command returns one data byte with contents as follows:
Bit #
Status Bit Name
Supported
7
Invalid or Unsupported Command Received
Yes
6
Invalid or Unsupported Data Received
Yes
5
Packet Error Check Failed
Yes
4
Memory Fault Detected
Yes
3
Processor Fault Detected
No
2
Reserved
No
1
A communication fault other than the ones
listed in this table has occurred
No
0
Other Memory or Logic Fault has occurred.
No
80h
STATUS_MFR_SPECIFIC
Same as standard PMBUS_STATUS_MFR_SPECIFIC Register.
Command returns one data byte with contents as follows:
Bit #
Status Bit Name
Supported
7
RAIL3 Fault
Yes
6
RAIL2 Fault
Yes
5
RAIL1 Fault
Yes
4
Reserved
No
3
Reserved
No
2
Reserved
No
1
Reserved
No
0
BULK OVP/DVP
Yes
99h
MFR_ID
Same as standard PMBUS_MFR_ID Register.
Command to return back the manufacturer’s name.
9Ah
MFR_MODEL
Same as standard PMBUS_MFR_MODEL Register.
Command to return back the manufacturer’s model number
E0h
FW_PRI_VERSION
Manufacture specific command.
Command to return back the SW version of the device.
E9h
MFR_STATUS_01
PFC Command for Summary of PFC present status.
This PMBUS command has 3 indexes. Each index contains 2 bytes of
data.
Index 00 “Input Status”
Bit
Bit Name
Bit15
Reserved
Bit14
Reserved
iHP Manual 135 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
Bit13
Reserved
Bit12
Reserved
Bit11
Vin3OVP
Bit10
Vin2OVP
Bit9
Vin1OVP
Bit8
Vin3UVP
Bit7
Vin2UVP
Bit6
Vin1UVP
Bit5
AUX
Bit4
Relay
Bit3
Supply
Bit2
PSON
Bit1
Address
Bit0
BulkOK
Index 01 “PFC Status”
Bit
Bit Name
Bit15
Reserved
Bit14
Reserved
Bit13
Reserved
Bit12
Reserved
Bit11
Reserved
Bit10
Reserved
Bit9
Reserved
Bit8
OPW
Bit7
OCW
Bit6
OVW
Bit5
Other
Bit4
SCKT
Bit3
OCP
Bit2
UVP
Bit1
OVP
Bit0
OutOK
Index 02 “VBUS Status”
Bit
Bit Name
Bit15
Reserved
Bit14
Reserved
Bit13
Reserved
Bit12
Reserved
Bit11
Differential Voltage Protection Rail3
Bit10
Differential Voltage Protection Rail2
Bit9
Differential Voltage Protection Rail1
iHP Manual 136 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
Bit8
Bulk Short Circuit3
Bit7
Bulk Short Circuit2
Bit6
Bulk Short Circuit1
Bit5
Bulk Under Voltage Protection Rail3
Bit4
Bulk Under Voltage Protection Rail2
Bit3
Bulk Under Voltage Protection Rail1
Bit2
Bulk Over Voltage Protection Rail3
Bit1
Bulk Over Voltage Protection Rail2
Bit0
Bulk Over Voltage Protection Rail1
PFC Command Data Classifications
Command
Code
Command Name
Transaction
Type
# of Bytes
Data
Format
Write
Protection
03h
CLEAR_FAULTS
Send Byte
0
N/A
Basic
10h
WRITE_PROTECT
Read/Write
Byte
1
Bitmapped
N/A
78h
STATUS_BYTE
Read Byte
1
Bitmapped
N/A
79h
STATUS_WORD
Read Word
2
Bitmapped
N/A
7Ah
STATUS_VOUT
Read Byte
1
Bitmapped
Basic
7Ch
STATUS_INPUT
Read Byte
1
Bitmapped
Basic
7Dh
STATUS_TEMPERATURE
Read Byte
1
Bitmapped
Basic
7Eh
STATUS_CML
Read Byte
1
Bitmapped
Basic
80h
STATUS_MFR_SPECIFIC
Read Byte
1
Bitmapped
Basic
99h
MFR_ID
Block Read
7
ASCII
N/A
9Ah
MFR_MODEL
Block Read
15
ASCII
N/A
E0h
FW_PRI_VERSION
Block Read
8
ASCII
N/A
E9h
MFR_STATUS_01
Block Read
2 bytes per
index
Bitmapped
N/A
Note: 24kW iHP rack is composed of two boards of 12kW PFC.
In PFC PMBUS Commands,
IOUT refers to the Output current of the PFC in which the command is addressed.
VOUT refers to the Output voltage of the PFC in which the command is addressed.
VIN refers to the Input Voltage of the PFC in which the command is addressed.
IIN refers to the Input Current of the PFC in which the command is addressed.
B.2 MODULE Command
iHP Manual 137 | P a g e
iHP Owners Manual
To convert Linear Data Format to “real world value”, please refer to appendix B.4
To convert Direct Data Format to “real world value”, please refer to appendix B.5
MODULE Command Definition
Command Code
Command Name
Definition
01h
OPERATION
Same as standard PMBUS_OPERATION Register.
Command used to Turn-off or Turn-on the
module.
Bit6 = 0 and Bit 7 = 1: Module is ON
Bit6 = 0 and Bit 7 = 0: Module is OFF
Bit 0 to Bit 5: Don’t Care
User Configurable.
03h
CLEAR_FAULTS
Same as standard PMBUS_CLEAR_FAULT
Register.
To remove the warning or fault bits set in the
status register, User need to send CLEAR_FAULT
command.
This command will only clear the status registers
fault.
10h
WRITE_PROTECT
Same as standard PMBUS_WRITE_PROTECT
Register.
Command used to Enable or Disable writing to
the Module Registers.
This will prevent accidental writing to the
Module.
Data: 80h – Disable all write except to the
WRITE_PROTECT command.
Data: 40h – Disable all write except to the
WRITE_PROTECT and OPERATION command.
Data: 00h – Enable writes to all commands.
24h
VOUT_MAX
Read maximum output voltage of the Module.
Automatically Set to 120% of Nominal Rating.
Refer to Module Command data classification
for Data Format
iHP Manual 138 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
31h
POUT_MAX
Read Module’s rated power
Refer to Module Command data classification
for Data Format
40h
MFR_REG
Manufacturer register.
Do not access.
41h
VOUT_OV_FAULT_RESPONSE
Same as standard
PMBUS_VOUT_OV_FAULT_RESPONSE Register.
Read Module Response during over-voltage fault
condition
Fix Data: 80h – Device Latch.
42h
MFR_REG
Manufacturer register.
Do not access.
43h
MFR_REG
Manufacturer register.
Do not access.
44h
MFR_REG
Manufacturer register.
Do not access.
45h
VOUT_UV_FAULT_RESPONSE
Same as standard
PMBUS_VOUT_UV_FAULT_RESPONSE Register.
Read Module Response during under-voltage
fault condition
Fix Data: 80h – Device Latch
46h
MFR_REG
Manufacturer register.
Do not access.
47h
MFR_REG
Manufacturer register.
Do not access.
iHP Manual 139 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
48h
OV_FAULT_LIMIT_MULTIPLIER
Data is used to compute for the tracking over
voltage protection (OVP) of the module
Refer to Module Command data classification
for Data Format.
During Digital Voltage Source (DVS), Analog
Current Source (ACS), and Digital Current Source
(DCS).
OVP Level = VREF + (Nominal Voltage * (OVP
Multiplier-1))
During AVS, this PMBUS Register is not
functional.
Data Range: 120% to 130%
If user commands outside the set range, 0x7Eh
STATUS_CML will be asserted with invalid data
fault.
User Configurable. This parameter will be
override by BRICK OVP Level if target TRACKING
OVP Level is higher than BRICK OVP Level
49h
OV_WARN_LIMIT_MULTIPLIER
Data is used to compute for the over voltage
warning (OVW) level of the module
Refer to Module Command data classification
for Data Format.
During Digital Voltage Source (DVS), Analog
Current Source (ACS), and Digital Current Source
(DCS).
OVW Level = VREF + (Nominal Voltage * (OVP
Multiplier-1))
During Analog Voltage Source (AVS), Analog
Current Source (ACS), and Digital Current Source
(DCS), this Register is not functional.
Data Range: 105% to 125%
If user command outside the set range, 0x7Eh
STATUS_CML will be asserted with invalid data
fault
User Configurable.
4Ah
MFR_REG
Manufacturer register.
Do not access.
iHP Manual 140 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
4Bh
UV_FAULT_LIMIT_MULTIPLIER
Data is used to compute for the under voltage
protection (UVP) level of the module
Refer to Module Command data classification
for Data Format.
Under Voltage Protection is functional during
Digital Programming Voltage Source (DVS)
UVP Level = VREF – (Nominal Voltage * (1-UVP
Multiplier))
Data Range: 80% to 90%
This function will be disabled when the VREF is
set to less than or equal to 10% of the nominal.
If user command outside the set range, 0x7Eh
STATUS_CML will be asserted with invalid data
fault
User Configurable.
4Ch
UV_WARN_LIMIT_MULTIPLIER
Data is used to compute for the under voltage
warning (UVW) level of the module
Refer to Module Command data classification
for Data Format.
Under Voltage Warning is functional during
Digital Voltage Source (DVS)
UVW Level = VREF – (Nominal Voltage *(1- UVP
Multiplier))
Data Range: 85% to 95%
This function will be disabled when the VREF is
set to less than or equal to 10% of the nominal.
If user command outside the set range, 0x7Eh
STATUS_CML will be asserted with invalid data
fault
User Configurable.
iHP Manual 141 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
4Dh
OC_FAULT_LIMIT_MULTIPLIER
Data is used to compute for the Over Current
Protection (OCP) level of the module
Refer to Module Command data classification
for Data Format.
Digital Voltage Source and Analog Voltage
Source
Latch type OC level = (Io
nominal)*(OC_FAULT_LIMIT_MULTIPLIER)
CC type OC level = (Io
nominal)*(OC_FAULT_LIMIT_MULTIPLIER)
Data Range: 50% to 105%
Digital Current Source and Analog Current
Source
OC_FAULT_LIMIT_MULTIPLIER is not functional
during this operation.
4Eh
MFR_REG
Manufacturer register.
Do not access.
4Fh
OT_FAULT_LIMIT
Over Temperature Protection level of the
Module for TEMP1.
Refer to Module Command data classification
for Data Format.
Fix data varies per module series.
50h
OT_FAULT_RESPONSE
Same as standard
PMBUS_OT_FAULT_RESPONSE Register.
Read Module Response during over temperature
fault condition
Fix Data: B8h – Device Shuts down
Unit attempt to restart
continuously, when required
condition is met, until commanded
OFF, bias power is removed, or
another fault condition shuts the
module down.
iHP Manual 142 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
51h
OT_WARN_LIMIT
Over Temperature Warning level of the Module
for TEMP1.
Refer to Module Command data classification
for Data Format.
Fix data varies per module series.
52h
OC_RESPONSE_TYPE
Command to read/write Over-current Protection
Type
Applicable only during Voltage Source
configuration.
Data 00h - CC Type Protection
Data 01h - Latch Type Protection
User Configurable.
53h
MFR_REG
Manufacturer register.
Do not access.
54h
MFR_REG
Manufacturer register.
Do not access.
5Eh
POWER_GOOD_ON
Command to read the output voltage level (DVS)
where POWER_GOOD signal is asserted.
Refer to Module Command data classification
for Data Format.
During Digital Programming Voltage Source,
Vo @ Power Good ON = VREF *
POWER_GOOD_ON
This PMBUS command is not functional during
DCS, AVS and ACS.
5Fh
POWER_GOOD_OFF
Command to read the output voltage level (DVS)
where POWER_GOOD signal is de-asserted.
Refer to Module Command data classification
for Data Format.
During Digital Voltage Source,
Vo @ Power Good OFF = VREF *
POWER_GOOD_OFF
This PMBUS command is not functional during
APVS and APCS.
iHP Manual 143 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
61h
MFR_REG
Manufacturer register.
Do not access.
62h
MFR_REG
Manufacturer register.
Do not access.
63h
MFR_REG
Manufacturer register.
Do not access.
6Ah
MFR_REG
Manufacturer register.
Do not access.
78h
STATUS_BYTE
Standard PMBUS STATUS Register.
Returns one byte of information with the
summary of the most critical Module faults.
Please see below Listing of STATUS_BYTE
supported Bits:
Bit #
Status Bit Name
Supported
7
BUSY
No
6
OFF
Yes
5
VOUT_OV_FAULT
Yes
4
IOUT_OC_FAULT
Yes
3
VIN_UV_FAULT
No
2
TEMPERATURE
Yes
1
CML
Yes
0
NONE OF THE ABOVE
Yes
iHP Manual 144 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
79h
STATUS_WORD
Same as standard PMBUS_STATUS_WORD
Register.
Returns two byte of information with the
summary of the Module’s faults condition.
Based on the information, User can get more
information by reading the appropriate status
registers.
The low byte of the STATUS_WORD is the same
register as the STATUS_BYTE command.
Please see below Listing of STATUS_WORD
supported Bits:
LOW BYTE
Please refer to Module Command Code 0x78h
STATUS_BYTE
HIGH BYTE
Bit #
Status Bit Name
Supported
7
VOUT
Yes
6
IOUT/POUT
Yes
5
INPUT
Yes
4
MFR_SPECIFIC
Yes
3
POWER_GOOD#
Yes
2
FANS
No
1
OTHER
No
0
UNKNOWN
No
iHP Manual 145 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
7Ah
STATUS_VOUT
Same as standard PMBUS_STATUS_CML
Register.
Command returns one data byte with contents
as follows:
Bit #
Status Bit Name
Supported
7
VOUT Overvoltage Fault
Yes
6
VOUT Overvoltage
Warning
Yes
5
VOUT Undervoltage
Warning
Yes
4
VOUT Undervoltage
Fault
Yes
3
VOUT Max Warning
No
2
TON Max Fault
No
1
TON Max Warning
No
0
VOUT Tracking Error
No
7Bh
STATUS_IOUT
Same as standard PMBUS_STATUS_IOUT
Register.
Command returns one data byte with contents
as follows:
Bit #
Status Bit Name
Supported
7
IOUT Overcurrent
Fault
Yes
6
IOUT Overcurrent and
Low Voltage
Shutdown Fault
No
5
IOUT_OC_WARNING
Yes
4
IOUT_UC_FAULT
No
3
Current Share Fault
No
2
In Power Limiting
Mode
No
1
POUT_OP_FAULT
No
0
POUT_OP_WARNING
No
iHP Manual 146 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
7Ch
STATUS_INPUT
Same as standard PMBUS_STATUS_INPUT
Register.
Command returns one data byte with contents
as follows:
Bit #
Status Bit Name
Supported
7
VIN Overvoltage Fault
No
6
VIN Overvoltage Warning
No
5
VIN Undervoltage
Warning
No
4
VIN Undervoltage Fault
No
3
Unit is Off for Insufficient
Input Voltage
No
2
IIN Overcurrent Fault
Yes
1
IIN Overcurrent Warning
Yes
0
PIN Overpower Warning
No
Bit 1 and 2 will be asserted when Module
Primary Over Current fault is triggered.
7Dh
STATUS_TEMPERATURE
Same as standard
PMBUS_STATUS_TEMPERATURE Register.
Command returns one data byte with contents
as follows:
Bit #
Status Bit Name
Supported
7
OT_FAULT
Yes
6
OT_WARNING
Yes
5
UT_WARNING
No
4
UT_FAULT
No
3
Reserved
No
2
Reserved
No
1
Reserved
No
0
Reserved
No
iHP Manual 147 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
7Eh
STATUS_CML
Same as standard PMBUS_STATUS_CML
Register.
Command returns one data byte with contents
as follows:
Bit #
Status Bit Name
Supported
7
Invalid or Unsupported
Command Received
Yes
6
Invalid or Unsupported
Data Received
Yes
5
Packet Error Check Failed
Yes
4
Memory Fault Detected
Yes
3
Processor Fault Detected
No
2
Reserved
No
1
A communication fault
other than the ones listed
in this table has occurred
No
0
Other Memory or Logic
Fault has occurred.
No
iHP Manual 148 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
80h
STATUS_MFR_SPECIFIC
Same as standard
PMBUS_STATUS_MFR_SPECIFIC Register.
Command returns one data byte with contents
as follows:
Bitmap:
Bit7: MFR Specific Fault
Bit6: Reserved
Bit5: Asserted when DSP supply goes below
regulation
Bit4: Reserved
Bit3: Asserted when module primary current
imbalance occurs
Bit2: Asserted when module primary over
current occurs
Bit1: Reserved
Bit0: Asserted when internal CAN
communication fault occur.
8Bh
READ_VOUT
Module Output Voltage reporting
Refer to Module Command data classification
for Data Format.
8Ch
READ_IOUT
Module Output Current reporting
Refer to Module Command data classification
for Data Format.
8Dh
READ_TEMPERATURE_1
Module power device temperature reporting
Refer to Module Command data classification
for Data Format.
8Eh
MFR_REG
Manufacturer register.
Do not access.
8Fh
READ_TEMPERATURE_3
Module Transformer temperature reporting
Refer to Module Command data classification
for Data Format.
96h
Read_POUT
Module Output Power reporting
Refer to Module Command data classification
for Data Format. .
iHP Manual 149 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
99h
MFR_ID
Same as standard PMBUS_MFR_ID Register.
Command to indicate the manufacturer’s
Identification.
Fix data: “ARTESYN”
9Ah
MFR_MODEL
Same as standard PMBUS_MFR_MODEL
Register.
Command to indicate the manufacturer’s model
number. Data : Varies per module series
9Bh
MFR_REVISION
Same as standard PMBUS_MFR_REVISION
Register.
Command to indicate the module revision
number
Data : Varies per module series
9Ch
MFR_LOCATION
Same as standard PMBUS_MFR_LOCATION
Register.
Command to indicate the manufacturer’s
location.
Fix data: “PHILIPPINES”
9Dh
MFR_DATE
Same as standard PMBUS_MFR_DATE Register.
Command to indicate the Module’s
Manufacturing Date.
Data format: “YYMMDD”
9Eh
MFR_SERIAL
Same as standard PMBUS_MFR_SERIAL
Register.
Module’s serial number. Command to indicate
the
A4h
MFR_VOUT_MIN
Same as standard PMBUS_MFR_VOUT_MIN
Register.
Minimum Output voltage that can be set in the
Module.
Refer to Module Command data classification
for Data Format.
iHP Manual 150 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
A5h
MFR_VOUT_MAX
Same as standard PMBUS_MFR_VOUT_MAX
Register.
Maximum Output voltage that can be set in the
Module.
Refer to Module Command data classification
for Data Format.
A6h
MFR_IOUT_MAX
Same as standard PMBUS_MFR_IOUT_MAX
Register.
Maximum Output current that can be set in the
Module.
Refer to Module Command data classification
for Data Format.
A7h
MFR_POUT_MAX
Same as standard PMBUS_MFR_POUT_MAX
Register.
Maximum Output Power that can be delivery by
the Module the Module.
Refer to Module Command data classification
for Data Format.
B0h
FRU_DATA
Command to return FRU data of the Module.
iHP Manual 151 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
B1h
VREF
Module voltage reference.
Refer to Module Command data classification
for Data Format.
Command have different function in each
Module operation (D3h)
Digital Voltage Source
o User Configurable. User can change output
voltage using this command from 5% of
nominal Vout to 120% of nominal Vout.
o The Module will enter to standby mode
when user writes 0V to this register.
Analog Voltage Source
o Read Only
o Automatically set to Module Nominal
Output Voltage
o Not functional during this operation.
Digital/Analog Current Source
o User Configurable. User can change output
voltage using this command from 5% of
nominal Vout to 100% of nominal Vout.
o Clamp Voltage during Current Source
operation
iHP Manual 152 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
B2h
IREF
Module current reference.
Refer to Module Command data classification
for Data Format.
Digital Current Source
o User Configurable. User can change output
current using this command from 0A to
Nominal output current.
o The Module will enter to standby mode
when user writes 0A to this register.
Analog Current Source
o Read Only
o Automatically set to 0A.
o Not functional during this operation.
Digital/Analog Voltage Source
o Read only.
o Latch type Fault: Fix to 120% of nominal
output current. Not functional.
o CC Type Fault:
IREF= (Io
nominal)*(OC_FAULT_LIMIT_MULTIPLIER)
PMBUS command 4Dh
OC_FAULT_LIMIT_MULTIPLIER
B3h
MFR_REG
Manufacturer register.
Do not access.
iHP Manual 153 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
B5h
SET_VOLTAGE_RISE_SETTING
Command used to read the voltage rise time
during Module’s Digital Voltage Source (DVS)
operation.
Data Range: 00h – 0Fh
Data 0x00h: 10ms (+/- 5msec)
Data 0x01h: 20ms (+/- 5msec)
Data 0x02h: 50ms (+/- 5ms)
Data 0x03h: 70ms (+/- 5ms)
Data 0x04h: 80ms (+/- 5ms)
Data 0x05h: 90ms (+/- 5ms)
Data 0x06h: 100ms (+/- 5ms)
Data 0x07h: 110ms (+/- 5ms)
Data 0x08h: 120ms (+/- 5ms)
Data 0x09h: 130ms (+/- 5ms)
Data 0x0Ah: 140ms (+/- 5ms)
Data 0x0Bh: 150ms (+/- 5ms)
Data 0x0Ch: 175ms (+/- 10ms)
Data 0x0Dh: 200ms (+/- 10ms)
Data 0x0Eh: 225ms (+/- 10ms)
Data 0x0Fh: 250ms (+/- 20ms)
Send Command to Module Read only.
User Configurable
To configure use ISOCOMM PMBUS Command
B5h to change Module B5h.
iHP Manual 154 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
B6h
SET_CURRENT_RISE_ SETTING
Command used to read the current rise time
during Module’s Digital Current Source (DCS)
operation.
Data Range: 00h – 0Fh
Data 0x00h: 7.2ms
Data 0x01h: 100ms (+/- 10ms)
Data 0x02h: 125ms (+/- 10ms)
Data 0x03h: 150ms (+/- 10ms)
Data 0x04h: 175ms (+/- 10ms)
Data 0x05h: 200ms (+/- 10ms)
Data 0x06h: 225ms (+/- 10ms)
Data 0x07h: 250ms (+/- 10ms)
Data 0x08h: 300ms (+/- 10ms)
Data 0x09h: 350ms (+/- 10ms)
Data 0x0Ah: 400ms (+/- 10ms)
Data 0x0Bh: 450ms (+/- 10ms)
Data 0x0Ch: 500ms (+/- 10ms)
Data 0x0Dh: 700ms (+/- 50ms)
Data 0x0Eh: 900ms (+/- 50ms)
Data 0x0Fh: 1250ms (+/- 50ms)
Send Command to Module Read only.
User Configurable
To configure use ISOCOMM PMBUS Command
B6h to change Module B6h.
iHP Manual 155 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
B7h
SET_IO_ACTIVE_LEVEL_LOGIC
Command used to set the logic of
SYS_M_FAULT#, SYS_M_ENABLE#, and
SYS_M_INHIBIT signals.
Bitmap:
Bit7: Reserved
Bit6: Reserved
Bit5: Reserved
Bit4: Reserved
Bit3: Reserved
Bit2: Data: 1 – SYS_M_FAULT# Logic High
means Module is at Fault.
Data: 0 – SYS_M_FAULT# Logic Low means
Module is at Fault.
Bit1: Data: 1 – Module will turn-off if
SYS_M_INHIBIT is Logic High
Data: 0 –Module will turn-off if SYS_M_INHIBIT
is Logic Low.
Bit0: Data: 1 – Module will turn-on if
SYS_M_ENABLE# is Logic High
Data: 0 –Module will turn-on if SYS_M_ENABLE#
is Logic Low.
Please refer to Section 3.2.1.1 Module’s J1 Signal
for the recommended external circuitry for
SYS_M_ENABLE#, SYS_M_FAULT#, and
SYS_M_INHIBIT signal
User Configurable
B8h
SET_MODULE_LOAD_TYPE
Command to read Module compensation
Data: 01h – Resistive load compensation
Data: 02h - Capacitive load compensation
Data: 04h - LED load compensation
User Configurable
To configure use ISOCOMM PMBUS Command
B8h to change Module B8h.
B9h
MFR_REG
Manufacturer register.
Do not access.
iHP Manual 156 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
BAh
ANALOG_FILTER_ENABLE
To enable or disable heavy filtering of IPROG
signal during ACS or VPROG signal during AVS.
Bit2 to7: Reserved/Unused
Bit1: Data “1” ACS Heavy Filter Enabled
Data “0” ACS Heavy Filter Disabled
Bit0: Data”1” AVS operation and modules in
parallel. Sharing enable
Data”0” AVS operation and modules
stand-alone
Waveshape enable.
BBh
MFR_REG
Manufacturer register.
Do not access.
iHP Manual 157 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
D0h
SHUTDOWN_CAUSE
Status that indicate the cause of Module
shutdown
Bitmap:
Bit 4-6: Reserved/Unused
Bit3: Config Inhibit Status : Module inhibit
status during Module Configuration change.
Bit 2: Module is ON (1), Module is OFF (0)
Bit 1: Module Auto Recoverable Fault Assert Bit
Due to:
1) OT Fault,
2) COMM Fault,
3) Invalid Programming (PGM) Range
and
4) Output Short Circuit
Bit 0: Module Latch Type Fault Assert Bit
Due to:
1) Over-voltage Fault,
2) Under-voltage Fault,
3) Over-current Fault,
4) Primary Over-current Fault,
5) Rail Imbalance Fault, and
6) Supply_MON Fault
iHP Manual 158 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
D3h
MODULE_CONFIG
Command to Read Module Configuration Mode
Bitmap:
Bit 7-4: Reserved/Unused
Bit 6: Reserved
Bit 5: Reserved
Bit 4: Reserved/Unused
Bit 3: Source Selection
Data 1: Current Source Mode
Data 0: Voltage Source Mode
Bit 2: Reserved/Unused
Bit 1: Select Analog or Digital Control
Data 1: Analog Control
Data 0: Digital Control
Bit 0: Current Sensing
Data 1: External Shunt
Data 0: Internal Shunt
Bit 5 data should be data 0 all the time.
Send Command to Module Read only.
User Configurable
To configure use ISOCOMM PMBUS Command
D3h to change Module configuration D3h.
D4h
MFR_REG
Manufacturer register.
Do not access.
D5h
MFR_REG
Manufacturer register.
Do not access.
D7h
MFR_REG
Manufacturer register.
Do not access.
E1h
FW_SEC_VERSION
Command to read Module Software version
E2h
MFR_REG
Manufacturer register.
Do not access.
iHP Manual 159 | P a g e
iHP Owners Manual
Command Code
Command Name
Definition
E3h
MFR_REG
Manufacturer register.
Do not access.
E4h
MFR_REG
Manufacturer register.
Do not access.
E5h
OPTN_TIME_TOTAL
Command to read the total time when the
Module is turn-on and the output is operational.
This will reset when the iHP Rack is turn-off.
E6h
OPTN_TIME_PRESENT
Command to read the total time when the
Module is turn-on and the output is operational.
This will reset when the module enters to
standby mode.
E7h
HISTORY_DATA
Command to read the Module History Data.
E8h
HISTORY_CLEAR
Command to clear History Data
E9h
CALIBRATION_DATE
Command to read the last calibration date.
Data representation: YYMMDD
YY – Year
MM - Month
DD – Day
EDh
MFR_REG
Manufacturer register.
Do not access.
F6h
MFR_REG
Manufacturer register.
Do not access.
F7h
MFR_REG
Manufacturer register.
Do not access.
F9H
MFR_REG
Manufacturer register.
Do not access.
FAh
MFR_REG
Manufacturer register.
Do not access.
FBh
MFR_REG
Manufacturer register.
Do not access.
iHP Manual 160 | P a g e
iHP Owners Manual
Module Command Data Classifications
Command
Command Name
Transaction
Type
# of
Bytes
Data
Format
Multiplier
Data
Unit
Write
Protection
01h
OPERATION
Read/Write
Byte
1
Bitmapped
N/A
N/A
Basic
03h
CLEAR_FAULTS
Send Byte
0
N/A
N/A
N/A
Basic
10h
WRITE_PROTECT
Read/Write
Byte
1
Bitmapped
N/A
N/A
None
24h
VOUT_MAX
Read Word
3
DIRECT
10000
V
N/A
31h
POUT_MAX
Read Word
2
Linear
N/A
W
N/A
41h
VOUT_OV_FAULT_RESPONSE
Read Byte
1
Bitmapped
N/A
N/A
N/A
45h
VOUT_UV_FAULT_RESPONSE
Read Byte
1
Bitmapped
N/A
N/A
N/A
48h
OV_FAULT_LIMIT_MULTIPLIER
Block
Read/Write
Word
2
DIRECT
100
%
Basic
49h
OV_WARN_LIMIT_MULTIPLIER
Block
Read/Write
Word
2
DIRECT
100
%
Basic
4Bh
UV_FAULT_LIMIT_MULTIPLIER
Block
Read/Write
Word
2
DIRECT
100
%
Basic
4Ch
UV_WARN_LIMIT_MULTIPLIER
Block
Read/Write
Word
2
DIRECT
100
%
Basic
4Dh
OC_FAULT_LIMIT_MULTIPLIER
Block
Read/Write
2
DIRECT
100
%
Basic
4Fh
OT_FAULT_LIMIT
Read Word
2
Linear
N/A
0C
N/A
50h
OT_FAULT_RESPONSE
Read Byte
1
Bitmapped
N/A
N/A
N/A
51h
OT_WARN_LIMIT
Read Word
2
Linear
N/A
0C
N/A
52h
OC_RESPONSE_TYPE
Read/Write
Byte
1
Bitmapped
N/A
N/A
Basic
5Eh
POWER_GOOD_ON
Read Word
3
DIRECT
10000
V
N/A
5Fh
POWER_GOOD_OFF
Read Word
3
DIRECT
10000
V
N/A
78h
STATUS_BYTE
Read Byte
1
Bitmapped
N/A
N/A
N/A
iHP Manual 161 | P a g e
iHP Owners Manual
Command
Command Name
Transaction
Type
# of
Bytes
Data
Format
Multiplier
Data
Unit
Write
Protection
79h
STATUS_WORD
Read Word
2
Bitmapped
N/A
N/A
N/A
7Ah
STATUS_VOUT
Read Byte
1
Bitmapped
N/A
N/A
N/A
7Bh
STATUS_IOUT
Read Byte
1
Bitmapped
N/A
N/A
N/A
7Ch
STATUS_INPUT
Read Byte
1
Bitmapped
N/A
N/A
N/A
7Dh
STATUS_TEMPERATURE
Read Byte
1
Bitmapped
N/A
N/A
N/A
7Eh
STATUS_CML
Read Byte
1
Bitmapped
N/A
N/A
N/A
80h
STATUS_MFR_SPECIFIC
Read Byte
1
Bitmapped
N/A
N/A
N/A
8Bh
READ_VOUT
Read Word
3
DIRECT
10000
V
N/A
8Ch
READ_IOUT
Read Word
3
DIRECT
10000
A
N/A
8Dh
READ_TEMPERATURE_1
Read Word
2
Linear
N/A
0C
N/A
8Fh
READ_TEMPERATURE_3
Read Word
2
Linear
N/A
0C
N/A
96h
READ_POUT
Read Word
2
Linear
N/A
W
N/A
99h
MFR_ID
Block Read
7
ASCII
N/A
N/A
N/A
9Ah
MFR_MODEL
Block Read
15
ASCII
N/A
N/A
N/A
9Bh
MFR_REVISION
Block Read
2
ASCII
N/A
N/A
N/A
9Ch
MFR_LOCATION
Block Read
6
ASCII
N/A
N/A
N/A
9Dh
MFR_DATE
Block Read
2
ASCII
N/A
N/A
N/A
9Eh
MFR_SERIAL
Block Read
13
ASCII
N/A
N/A
N/A
A4h
MFR_VOUT_MIN
Read Word
3
Direct
10000
V
N/A
A5h
MFR_VOUT_MAX
Read Word
3
Direct
10000
V
N/A
A6h
MFR_IOUT_MAX
Read Word
3
Direct
10000
A
N/A
A7h
MFR_POUT_MAX
Read Word
2
Linear
N/A
W
N/A
B0h
FRU_DATA
Block Read
Varies
ASCII
N/A
User
Configuration
B1h
VREF
Read/Write
Word
3
Direct
10000
V
Basic
B2h
IREF
Read/Write
Word
3
Direct
10000
A
Basic
iHP Manual 162 | P a g e
iHP Owners Manual
Command
Command Name
Transaction
Type
# of
Bytes
Data
Format
Multiplier
Data
Unit
Write
Protection
B5h
SET_VOLTAGE_RISE_SETTING
Block Read
Word
2
Direct
1
N/A
N/A
B6h
SET_CURRENT_RISE_SETTING
Block Read
Word
2
Direct
1
N/A
N/A
B7h
SET_IO_ACTIVE_LEVEL_LOGIC
Block
Read/Write
2
Bitmapped
N/A
N/A
Basic
B8h
SET_MODULE_LOAD TYPE
Block Read
Word
2
Bitmapped
N/A
N/A
N/A
BAh
ANALOG_FILTER_ENABLE
Read/Write
Byte
1
Bitmapped
N/A
N/A
Basic
D0h
FAULT_CONFIG
Read Byte
1
Bitmapped
N/A
N/A
N/A
D3h
MODULE_CONFIG
Read Byte
1
Bitmapped
N/A
N/A
N/A
E1h
FW_SEC_VERSION
Block Read
8
ASCII
N/A
N/A
N/A
E5h
OPTN_TIME_TOTAL
Block Read
4
DIRECT
1
sec
N/A
E6h
OPTN_TIME_PRESENT
Block Read
4
DIRECT
1
sec
N/A
E7h
HISTORY_DATA
Block Read
4
varies
N/A
N/A
N/A
E8h
HISTORY_CLEAR
Send Byte
0
N/A
N/A
N/A
Factory
Configuration
E9h
CALIBRATION_DATE
Block Read
6
ASCII
N/A
N/A
N/A
B.3 ISOCOMM Command
To convert Linear Data Format to “real world value”, please refer to appendix B.4
To convert Direct Data Format to “real world value”, please refer to appendix B.5
ISOCOMM Command Definition
iHP Manual 163 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
01h
OPERATION
Command used to Turn-off or Turn-on ALL modules.
Bit 7 = 1 : Module is ON
Bit 7 = 0 : Module is OFF
Bit 0 to Bit 6 : Don’t Care
User Configurable.
03h
CLEAR_FAULTS
Standard PMBUS command
To remove the warning or fault bits set in the status register, User need to
send CLEAR_FAULT command
10h
WRITE_PROTECT
Same as standard PMBUS_WRITE_PROTECT Register.
Command used to Enable or Disable writing to the ISOCOMM Registers.
This will prevent accidental writing to the Module.
Data: 80h – Disable all write except to the WRITE_PROTECT command.
Data: 00h – Enable writes to all commands.
3Ah
FAN_CONFIG_1_2
Same as standard PMBUS_FAN_CONFIG_1_2 Register.
Command returns one data byte with contents as follows:
Bit #
Status Bit Name
Fixed data
7
Data 1: Fan 1 is present.
Data 0: Fan 1 is not present.
1
6
Data 1: Fan 1 commanded in RPM
Data 0: Fan 1 commanded Duty Cycle
0
5
Fan 1 Tachometer pulses per revolution
00b – 1 pulse per revolution
01b – 2 pulse per revolution
10b – 3 pulse per revolution
11b - 4 pulse per revolution
0
4
1
3
Data 1: Fan 2 is present.
Data 0: Fan 2 is not present.
1
2
Data 1: Fan 2 commanded in RPM
Data 0: Fan 2 commanded Duty Cycle
0
1
Fan 2 Tachometer pulses per revolution
00b – 1 pulse per revolution
01b – 2 pulse per revolution
10b – 3 pulse per revolution
11b - 4 pulse per revolution
0
0
1
iHP Manual 164 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
3Dh
FAN_CONFIG_3_4
Same as standard PMBUS_FAN_CONFIG_3_4 Register.
Command returns one data byte with contents as follows:
Bit #
Status Bit Name
Fixed data
Supported
7
Data 1: Fan 3 is present.
Data 0: Fan 3 is not present.
1
No
6
Data 1: Fan 3 commanded in RPM
Data 0: Fan 3 commanded Duty Cycle
0
No
5
Fan 3 Tachometer pulses per revolution
00b – 1 pulse per revolution
01b – 2 pulse per revolution
10b – 3 pulse per revolution
11b - 4 pulse per revolution
0
No
4
1
No
3
Data 1: Fan 4 is present.
Data 0: Fan 4 is not present.
1
No
2
Data 1: Fan 4 commanded in RPM
Data 0: Fan 4 commanded Duty Cycle
0
Yes
1
Fan 4 Tachometer pulses per revolution
00b – 1 pulse per revolution
01b – 2 pulse per revolution
10b – 3 pulse per revolution
11b - 4 pulse per revolution
0
Yes
0
1
Yes
78h
STATUS_BYTE
Same as standard PMBUS_STATUS_BYTE Register.
Returns one byte of information with the summary of the most critical
ISOCOMM faults.
Please see below Listing of STATUS_BYTE supported Bits:
Bit #
Status Bit Name
Supported
7
BUSY
No
6
OFF
No
5
VOUT_OV_FAULT
No
4
IOUT_OC_FAULT
No
3
VIN_UV_FAULT
No
2
TEMPERATURE
Yes
1
CML
Yes
0
NONE OF THE ABOVE
Yes
iHP Manual 165 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
79h
STATUS_WORD
Same as standard PMBUS_STATUS_WORD Register.
Returns two bytes of information with the summary of the ISOCOMM’s faults
condition. Based on the information, User can get more information by
reading the appropriate status registers.
The low byte of the STATUS_WORD is the same register as the STATUS_BYTE
command.
Please see below Listing of STATUS_WORD supported Bits:
LOW BYTE
Please refer to ISOCOMM Command Code 0x78h STATUS_BYTE
HIGH BYTE
Bit #
Status Bit Name
Supported
7
VOUT
No
6
IOUT/POUT
No
5
INPUT
No
4
MFR_SPECIFIC
Yes
3
POWER_GOOD#
No
2
FANS
Yes
1
OTHER
No
0
UNKNOWN
No
7Dh
STATUS_TEMPERATURE
Same as standard PMBUS_STATUS_TEMPERATURE Register.
Command returns one data byte with contents as follows:
Bit #
Status Bit Name
Supported
7
OT_FAULT
Yes
6
OT_WARNING
Yes
5
UT_WARNING
No
4
UT_FAULT
No
3
Reserved
No
2
Reserved
No
1
Reserved
No
0
Reserved
No
ISOCOMM OTP protection is with reference to the ambient temperature of
the iHP RACK (Front Panel Ambient Temperature).
iHP Manual 166 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
7Eh
STATUS_CML
Same as standard PMBUS_STATUS_CML Register.
Command returns one data byte with contents as follows:
Bit #
Status Bit Name
Supported
7
Invalid or Unsupported Command Received
Yes
6
Invalid or Unsupported Data Received
Yes
5
Packet Error Check Failed
Yes
4
Memory Fault Detected
Yes
3
Processor Fault Detected
No
2
Reserved
No
1
A communication fault other than the ones
listed in this table has
occurred
No
0
Other Memory or Logic Fault has occurred.
No
80h
STATUS_MFR
Same as standard PMBUS_STATUS_MFR Register.
Command returns a word data where the high byte is a copy of PFC’s
STATUS_MFR and the low byte is defined as follows:
Bit #
Status Bit Name
Supported
7
Reserved
No
6
Reserved
No
5
Rack SYNC Off
No
4
GROUP mismatched
YES
3
Module Communication Error
YES
2
PFC Communication Error
YES
1
Module Synchronize Off
YES
0
5V Standby Error
YES
81h
STATUS_FAN_1_2
Same as standard PMBUS_STATUS_FAN_1_2 Register.
Command returns one data byte with contents as follows:
Bit #
Status Bit Name
Supported
7
Fan 1 Fault
YES
6
Fan 2 Fault
YES
5
Fan 1 Warning
No
4
Fan 2 Warning
No
3
Fan 1 Speed Override
No
2
Fan 2 Speed Override
No
1
Air Flow Fault
No
0
Air Flow Warning
No
iHP Manual 167 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
82h
STATUS_FAN_3_4
Same as standard PMBUS_STATUS_FAN_3_4 Register.
Command returns one data byte with contents as follows:
Bit #
Status Bit Name
Supported
7
Fan 3 Fault
YES
6
Fan 4 Fault
YES
5
Fan 3 Warning
No
4
Fan 4 Warning
No
3
Fan 3 Speed Override
No
2
Fan 4 Speed Override
No
1
Reserved
No
0
Reserved
No
8Dh
READ_TEMPERATURE_1
This command returns the highest temperature between PFC1 and PFC2.
Refer to ISOCOMM Command data classification for Data Format
8Fh
READ_TEMPERATURE_2
This command returns the Ambient Temperature of the iHP Rack.
Temperature sensor of the Ambient temperature is located on the Front
panel.
Refer to ISOCOMM Command data classification for Data Format
90h
READ_FAN1_SPEED
iHP RACK fan speed reporting in RPM for FAN1.
Refer to ISOCOMM Command data classification for Data Format
91h
READ_FAN2_SPEED
iHP RACK fan speed reporting in RPM for FAN2.
Refer to ISOCOMM Command data classification for Data Format
92h
READ_FAN3_SPEED
iHP RACK fan speed reporting in RPM for FAN3.
Refer to ISOCOMM Command data classification for Data Format
93h
READ_FAN4_SPEED
iHP RACK fan speed reporting in RPM for FAN4.
Refer to ISOCOMM Command data classification for Data Format
99h
MFR_ID
Standard PMBUS command
Command to indicate the iHP RACK’s manufacturer’s Identification.
Fix data: “ARTESYN”
9Ah
MFR_MODEL
Same as standard PMBUS_MFR_MODEL Register.
Command to indicate the iHP RACK’s model number.
Data : Varies per module series
9Bh
MFR_REVISION
Same as standard PMBUS_MFR_REVISION Register.
Command to indicate the iHP RACK’s revision number
Data : Varies per module series
9Ch
MFR_LOCATION
Same as standard PMBUS_MFR_LOCATION Register.
Command to indicate the iHP RACK’s manufacturer’s location.
Fix data: “PHILIPPINES”
9Dh
MFR_DATE
Same as standard PMBUS MFR_DATE Register.
Command to indicate the iHP RACK’s Manufacturing Date.
Data format: “YYMMDD”
9Eh
MFR_SERIAL
Same as standard PMBUS_MFR_SERIAL Register.
Command to indicate the iHP RACK’s serial number.
B0h
FRU_DATA
Command to return FRU data of the ISOCOMM
iHP Manual 168 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
B5h
MODULE_VRISE_TIME
Command used to set the voltage rise time of the module during Module’s
Digital Programming Voltage Source (DPVS) operation.
This command has 3 bytes of data to write
<DATA1> <DATA2> <DATA3>
Data1 indicates the module slot or Group number in which the setting will be
implemented
<data1> = “00” = Slot 1 module
<data1> = “01” = Slot 2 module
<data1> = “02” = Slot 3 module
<data1> = “03” = Slot 4 module
<data1> = “04” = Slot 5 module
<data1> = “05” = Slot 6 module
<data1> = “06” = Slot 7 module
<data1> = “07” = Slot 8 module
<data1> = “08” = GROUP1 module
<data1> = “09” = GROUP2 module
<data1> = “0A” = GROUP3 module
<data1> = “0B” = GROUP4 module
<data1> = “0C” = GROUP5 module
<data1> = “0D” = GROUP6 module
<data1> = “0E” = GROUP7 module
Data2 and Data3 indicate the module rise time setting.
Data “00 00” : 10ms (+/- 5ms)
Data “00 01” : 20ms (+/- 5ms)
Data “00 02” : 50ms (+/- 5ms)
Data “00 03” : 70ms (+/- 5ms)
Data “00 04” : 80ms (+/- 5ms)
Data “00 05” : 90ms (+/- 5ms)
Data “00 06” : 100ms (+/- 5ms)
Data “00 07” : 110ms (+/- 5ms)
Data “00 08” : 120ms (+/- 5ms)
Data “00 09” : 130ms (+/- 5ms)
Data “00 0A” : 140ms (+/- 5ms)
Data “00 0B” : 150ms (+/- 5ms)
Data “00 0C” : 175ms (+/- 10ms)
Data “00 0D” : 200ms (+/- 10ms)
Data “00 0E” : 225ms (+/- 10ms)
Data “00 0F” : 250ms (+/- 20ms)
After sending this PMBUS command, All modules will shut down and restart
again.
iHP Manual 169 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
B6h
MODULE_IRISE_TIME
Command used to set the current rise time of the module during Module’s
Digital Programming Current Source (DPCS) operation.
This command has 3 bytes of data to write
<DATA1> <DATA2> <DATA3>
Data1 indicates the module slot or Group number in which the setting will be
implemented
<data1> = “00” = Slot 1 module
<data1> = “01” = Slot 2 module
<data1> = “02” = Slot 3 module
<data1> = “03” = Slot 4 module
<data1> = “04” = Slot 5 module
<data1> = “05” = Slot 6 module
<data1> = “06” = Slot 7 module
<data1> = “07” = Slot 8 module
<data1> = “08” = GROUP1 module
<data1> = “09” = GROUP2 module
<data1> = “0A” = GROUP3 module
<data1> = “0B” = GROUP4 module
<data1> = “0C” = GROUP5 module
<data1> = “0D” = GROUP6 module
<data1> = “0E” = GROUP7 module
Data2 and Data3 indicate the module rise time setting.
Data “00 00” : 7.2ms
Data “00 01” : 100ms (+/- 10ms)
Data “00 02” : 125ms (+/- 10ms)
Data “00 03” : 150ms (+/- 10ms)
Data “00 04” : 175ms (+/- 10ms)
Data “00 05” : 200ms (+/- 10ms)
Data “00 06” : 225ms (+/- 10ms)
Data “00 07” : 250ms (+/- 10ms)
Data “00 08” : 300ms (+/- 10ms)
Data “00 09” : 350ms (+/- 10ms)
Data “00 0A” : 400ms (+/- 10ms)
Data “00 0B” : 450ms (+/- 10ms)
Data “00 0C” : 500ms (+/- 10ms)
Data “00 0D” : 700ms (+/- 50ms)
Data “00 0E” : 900ms (+/- 50ms)
Data “00 0F” : 1250ms (+/- 50ms)
ending this PMBUS command, All modules will shut down and restart again.
CAh
READ_VIN1
iHP RACK Input Voltage reporting (Vac) for Line1
Refer to ISOCOMM Command data classification for Data Format
CBh
READ_VIN2
iHP RACK Input Voltage reporting (Vac) for Line2
Refer to ISOCOMM Command data classification for Data Format
CCh
READ_VIN3
iHP RACK Input Voltage reporting (Vac) for Line3
Refer to ISOCOMM Command data classification for Data Format
iHP Manual 170 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
CDh
READ_IIN1
iHP RACK Input Current reporting (Vac) for Line1
Refer to ISOCOMM Command data classification for Data Format
CEh
READ_IIN2
iHP RACK Input Current reporting (Vac) for Line2
Refer to ISOCOMM Command data classification for Data Format
CFh
READ_IIN3
iHP RACK Input Voltage reporting (Vac) for Line3
Refer to ISOCOMM Command data classification for Data Format
D3h
MODULE_CONFIG
Command used to set the configuration of the module.
This command has 2 bytes of data to write
<DATA1> <DATA2>
Data1 indicates the module slot or Group number in which the setting will be
implemented
<data1> = “00” = Slot 1 module
<data1> = “01” = Slot 2 module
<data1> = “02” = Slot 3 module
<data1> = “03” = Slot 4 module
<data1> = “04” = Slot 5 module
<data1> = “05” = Slot 6 module
<data1> = “06” = Slot 7 module
<data1> = “07” = Slot 8 module
<data1> = “08” = GROUP1 module
<data1> = “09” = GROUP2 module
<data1> = “0A” = GROUP3 module
<data1> = “0B” = GROUP4 module
<data1> = “0C” = GROUP5 module
<data1> = “0D” = GROUP6 module
<data1> = “0E” = GROUP7 module
Data2 indicate the module configuration setting.
Bitmap:
Bit 7-4: Reserved/Unused
Bit 6: Reserved/Unused
Bit 5: Reserved/Unused
Bit 4: Reserved/Unused
Bit 3: Source Selection
Data 1: Current Source Mode
Data 0: Voltage Source Mode
Bit 2: Reserved/Unused
Bit 1: Select Analog or Digital Control
Data 1: Analog Control
Data 0: Digital Control
Bit 0: Current Sensing
Data 1: External Shunt
Data 0: Internal Shunt
Bit 5 data should be data 0 all the time.
After sending this PMBUS command, All modules will shut down and restart
again.
iHP Manual 171 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
D6h
MODULE_DETECTION
Command to indicate module present in the iHP RACK
Data Bit0 : Asserted when module is present in slot1
Data Bit1 : Asserted when module is present in slot2
Data Bit2 : Asserted when module is present in slot3
Data Bit3 : Asserted when module is present in slot4
Data Bit4 : Asserted when module is present in slot5
Data Bit5 : Asserted when module is present in slot6
Data Bit6 : Asserted when module is present in slot7
Data Bit7 : Asserted when module is present in slot8
D7h
MODULE_SAVE
Command used to Save below Module Configuration.
48h, 49h, 4Bh, 4Ch, 4Dh, 4Eh, 52h, 53h, 54h, B4h B5h, B6h, B7h, B8h, B9h,
Bah, D3h, F9h, FAh
This command have indicates the module slot or Group number in which the
setting will be implemented
data = “00” = Slot 1 module
data = “01” = Slot 2 module
data = “02” = Slot 3 module
data = “03” = Slot 4 module
data = “04” = Slot 5 module
data = “05” = Slot 6 module
data = “06” = Slot 7 module
data = “07” = Slot 8 module
data = “08” = GROUP1 module
data = “09” = GROUP2 module
data = “0A” = GROUP3 module
data = “0B” = GROUP4 module
data = “0C” = GROUP5 module
data = “0D” = GROUP6 module
data = “0E” = GROUP7 module
After sending this PMBUS command, All modules will shut down and restart
again.
E1h
FW_VERSION
Command to indicate the software version of the ISOCOMM
ISOCOMM Command Data Classifications
Command
Command Name
Transaction
Type
# of
Bytes
Data
Format
Multiplie
r
Data
Unit
Write
Protection
01h
OPERATION
Read/Write
Byte
1
Bitmapped
N/A
N/A
Basic
03h
CLEAR_FAULTS
Send Byte
0
N/A
N/A
N/A
Basic
10h
WRITE_PROTECT
Read/Write
Byte
1
Bitmapped
N/A
N/A
N/A
3Ah
FAN_CONFIG_1_2
Read Byte
1
Bitmapped
N/A
N/A
N/A
3Dh
FAN_CONFIG_3_4
Read Byte
1
Bitmapped
N/A
N/A
N/A
78h
STATUS_BYTE
Read Byte
1
Bitmapped
N/A
N/A
N/A
iHP Manual 172 | P a g e
iHP Owners Manual
Command
Command Name
Transaction
Type
# of
Bytes
Data
Format
Multiplie
r
Data
Unit
Write
Protection
79h
STATUS_WORD
Read Byte
2
Bitmapped
N/A
N/A
N/A
7Dh
STATUS_TEMPERATUR
E
Read Byte
1
Bitmapped
N/A
N/A
N/A
7Eh
STATUS_CML
Read Byte
1
Bitmapped
N/A
N/A
N/A
80h
STATUS_MFR
Read Byte
2
Bitmapped
N/A
N/A
N/A
81h
STATUS_FAN_1_2
Read Byte
1
Bitmapped
N/A
N/A
N/A
82h
STATUS_FAN_3_4
Read Byte
1
Bitmapped
N/A
N/A
N/A
8Dh
READ_TEMPERATURE_
1
Read Byte
2
Linear
N/A
0C
N/A
8Fh
READ_TEMPERATURE_
2
Read Byte
2
Linear
N/A
0C
N/A
90h
READ_FAN1_SPEED
Read Byte
2
Linear
N/A
RPM
N/A
91h
READ_FAN2_SPEED
Read Byte
2
Linear
N/A
RPM
N/A
92h
READ_FAN3_SPEED
Read Byte
2
Linear
N/A
RPM
N/A
93h
READ_FAN4_SPEED
Read Byte
2
Linear
N/A
RPM
N/A
99h
MFR_ID
Block Read
7
ASCII
N/A
N/A
N/A
9Ah
MFR_MODEL
Block Read
12
ASCII
N/A
N/A
N/A
9Bh
MFR_REVISION
Block Read
2
ASCII
N/A
N/A
N/A
9Ch
MFR_LOCATION
Block Read
1
ASCII
N/A
N/A
Factory
Config
9Dh
MFR_DATE
Block Read
2
ASCII
N/A
N/A
Factory
Config
9Eh
MFR_SERIAL
Block Read
13
ASCII
N/A
N/A
Factory
Config
B0h
FRU_DATA
Block Read
256
ASCII
N/A
N/A
Factory
Config
B5h
MODULE_VRISE_TIME
Block Write
3
Bitmapped
N/A
N/A
Basic
B6h
MODULE_IRISE_TIME
Block Write
3
Bitmapped
N/A
N/A
Basic
CAh
READ_VIN1
Read Word
2
Direct
10
V
N/A
CBh
READ_VIN2
Read Word
2
Direct
10
V
N/A
CCh
READ_VIN3
Read Word
2
Direct
10
V
N/A
CDh
READ_IIN1
Read Word
2
Direct
100
A
N/A
CEh
READ_IIN2
Read Word
2
Direct
100
A
N/A
CFh
READ_IIN3
Read Word
2
Direct
100
A
N/A
D3h
MODULE_CONFIG
Write Word
2
Bitmapped
N/A
N/A
Basic
D6h
MODULE_DETECTION
Read Byte
1
Bitmapped
N/A
N/A
Basic
D7h
MODULE_SAVE
Write Byte
1
Bitmapped
N/A
N/A
Basic
E1h
FW_VERSION
Read Byte
8
ASCII
N/A
N/A
N/A
B.4 Data Format: Linear
iHP Manual 173 | P a g e
iHP Owners Manual
Data Format Linear is one of the PMBUS Data Format used in iHP units. Please refer to
Appendix B.1, B.2, and B.3 for the PMBUS Commands that uses Linear Data Format.
The Linear Data Format is a two byte value with:
o An 11bit, two’s complement mantissa.
o An 5bit, two’s complement exponent (scaling factor)
The format of the two data bytes is illustrated below
The relationship between Y, N, and the “real word” value is:
X= Y * 2N
Where:
X is the “real word” value
Y is an 11bit, two’s complement integer
N is a 5 bit, two’s complement integer
Example:
Module PMBUS Command 8Dh
Data return: EAC0h
High Byte: EAh = 1110 1010b
Low Byte: C0h = 1100 0000b
iHP Manual 174 | P a g e
iHP Owners Manual
Interpretation:
N = 11101b = -3
Y = 01011000000 = 704
Computation
X= Y * 2N
X= (704) * 2(-3)
X= 88 oC
B.5 Data Format: Direct
One of the Data Format used in iHP units. Please refer to Appendix B.1, B.2, and B.3 for the
Commands that uses Direct Data Format.
In order to convert the data in to “real word” value, user needs to determine the # of bytes
and the multiplier.
The relationship between Y, N, and the “real word” value is:
Y = X * N
Where:
X is the “real word” value
Y is the data read from the device in decimal.
N is a the multiplier
Example 1:
Module Command 8Bh (READ_VOUT)
# of byte = 3 Byte
Multiplier = N = 10000
COMMAND 8Bh returns a data of 0757B0h
Convert 0757B0h to decimal = 481200
Y = X * N
481200 = X * 10000
iHP Manual 175 | P a g e
iHP Owners Manual
X = 48.12 V
Example 2
Module Command 8Ch (READ_IOUT)
# of byte = 3 Byte
Multiplier = N = 10000
COMMAND 8Bh returns a data of 098968h
Convert 098968h to decimal = 625000
Y = X * N
625000 = X * 10000
X = 62.5A
Example 3
Module Command 48h (OV_FAULT_LIMIT_MULTIPLIER)
# of byte = 2 Byte
Multiplier = N = 100
COMMAND 48h returns a data of 2EE0h
Convert 2EE0h to decimal = 12000
Y = X * N
12000 = X * 100
X = 120%
iHP Manual 176 | P a g e
iHP Owners Manual
Appendix C – MODULE REGISTER MFR_REG (FAE and VAR only)
MODULE Command Definition for MFR_REG
Command
Code
Command Name
Definition
40h
VOUT_OV_FAULT_LIMIT
Command to Read the Voltage level of the Module OVP.
Based on Module Command 48h.
42h
VOUT_OV_WARN_LIMIT
Command to Read the Voltage level of the Module OVP
Warn. Based on Module Command 49h.
43h
VOUT_UV_WARN_LIMIT
Command to Read the Voltage level of the Module UVP.
Based on Module Command 44h.
44h
VOUT_UV_FAULT_LIMIT
Command to Read the Voltage level of the Module UVP
Warn. Based on Module Command 43h.
46h
IOUT_OC_FAULT_LIMIT
Command to Read the Voltage level of the Module OCP.
Based on Module Command 4Dh.
This is only applicable when over current protection is set to
latch protection (Module command 52h).
47h
IOUT_OC_FAULT_RESPONSE
Same as standard PMBUS_IOUT_OC_FAULT_RESPONSE
Register.
Read Module Response during over-current fault condition
Fix Data: C0h – Device Shuts down
4Ah
IOUT_OC_WARN_LIMIT
Command to Read the Voltage level of the Module OCP
Warn. Based on Module Command 4Eh.
This is only applicable when over current protection is set to
latch protection (Module command 52h).
iHP Manual 177 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
4Eh
OC_WARN_LIMIT_MULTIPLIER
Data is used to compute for the Over Current Warning (OCP)
level of the module
Refer to Module Command data classification for Data
Format.
Digital Voltage Source and Analog Voltage Source
Latch OCW level = (Io
nominal)*(OC_WARN_LIMIT_MULTIPLIER)
CC OC level = (Io nominal)*(OC_WARN_LIMIT_MULTIPLIER)
Data Range: 105% to 120%
Digital Programming Current Source and Analog
Programming Current Source
OC_FAULT_LIMIT_MULTIPLIER is not functional during this
operation.
53h
VoutLow_Sckt_Level
During Voltage Source Mode, when module enters CC mode
operation due to current overload, the module latches off
when the output voltage level goes less than or equal to
VoutLow_SCKT_Level for the validation period of 2s.
To read Command 53h
o Read Command 53h
To change Command 53h
o Disable Write Protect via Module command 10h
o Send Admin access via Module command E2h
o Write to 53h
o Data written to 53h will be immediately updated
User can implement save command using ISOCOMM
Command D6h.
iHP Manual 178 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
54h
IoutHigh_Sckt_Level
During Current Source Mode, when the module's output
current goes greater than or equal to IoutHigh_Sckt_Level,
the module latches off when the output voltage level goes
less than or equal to the VoutLow_SCKT_Level (53h) setting
for the validation period (default: 2s).
To read Command 54h
o Read Command 54h
To change Command 54h
o Disable Write Protect via Module command 10h
o Send Admin access via Module command E2h
o Write to 54h
o Data written to 53h will be immediately updated
User can implement save command using ISOCOMM
Command D6h.
61h
TON_RISE
Maximum allowable Output voltage rise time.
Please refer to Command 0xB5h to change the output voltage
rise time
Refer to Module Command data classification for Data
Format.
Fix Value of 250msec.
62h
TON_MAX_FAULT_LIMIT
Same as standard PMBUS TON_MAX_FAULT_LIMIT Register.
Read maximum rise time before fault.
Fix Data: 350msecs.
63h
TON_MAX_FAULT_RESPONSE
Same as standard PMBUS TON_MAX_FAULT_RESPONSE
Register.
Read response of unit when rise time is greater than
TON_MAX_FAULT_LIMIT
Fix Data: 00h (Latch)
6Ah
POUT_OP_WARN_LIMIT
Module Over Power Warning level.
Refer to Module Command data classification for Data
Format.
iHP Manual 179 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
8Eh
READ_TEMPERATURE_2
Read Module Cool Temp setting used by ISOCOMM Fan
Control.
B3h
PCSI
Contains the active values for CONTROL LOOP settings. Be
cautious in changing values.
Can be written but values will not be saved.
User can Read the PCSI configuration
Read B3h (Offset)
User can write the PCSI configuration. Write Procedure
-Write Protect Disable via Module Command 10h
-Enter Admin Password via Module Command E2h
-Write all the required data using command B3h.
Write B3h <Offset> <Data>
One Offset per B3h command.
- Need to have an On to Off transition before the changes
will take into effect
If unit is already off when the write B3h command is sent,
user needs to ON then OFF before the changes will take into
effect.
-Turn-off the module either
Module Operational Command
ISOCOMM Operational Command
Module HW signal ( SYS_M_INHIBIT and
SYS_M_ENABLE#)
RACK HW signal (Global Inhibit/Enable Logic “0”
and Global Inhibit/Enable Logic “1”)
To Lock again the B3h after write.
-User needs to send Lock command via E2h
Write E2h <Lock code>
-Enable Module Write Protect via Module Command 10h.
B9h
SET_WIRE_IMPEDANCE
Defines the wire impedance during Droop Operation in
mohms.
iHP Manual 180 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
BBh
DSP_SOFTWARE RESET
Command to re-initialize the Module DSP.
o Disable Write Protect via Module command 10h
o Send Admin access via Module command E2h
o Turn-off the module either
Module Operational Command
ISOCOMM Operational Command
Module HW signal ( SYS_M_INHIBIT and
SYS_M_ENABLE#)
RACK HW signal (Global Inhibit/Enable Logic “0”
and Global Inhibit/Enable Logic “1”)
o Send Module command BBh.
o After sending BBh, module will re-initialize for less than
1sec.
o Users can now turn-on the module.
D4h
MODULE_OPERATION
Module command to authorize any change of configuration.
These include changes in Module PMBUSCommand D3h, F9h,
and FAh.
Data “00” means disable write to D3h, F9h, and FAh.
Data “01” means enable write to D3h, F9h, and FAh.
iHP Manual 181 | P a g e
iHP Owners Manual
D5h
PCSI_DATA_CMD
Contains the control settings for different load types. The
corresponding settings from this register are loaded to B3h
PCSI register during DSP initialization.
Difference between B3h and D5h.
B3h changes will be active during unit is power-on. When
the unit shutdown and restart again the setting will revert
back to the original.
D5h changes will be save to DSP and will retain the save
values every power-up.
User can Read the PCSI configuration
Read D5h (Offset)
User can write the PCSI configuration. Write Procedure
-Turn-off the module either
o Module Operational Command
o ISOCOMM Operational Command
o Module HW signal ( SYS_M_INHIBIT and
SYS_M_ENABLE#)
o RACK HW signal (Global Inhibit/Enable Logic “0” and
Global Inhibit/Enable Logic “1”)
-Write Protect Disable via Module 10h
-Enter Admin Password via Module E2h
-Send Unlock register via Module Command E3h data “01”
-Write all the required data using command D5h.
Write D5h <Offset> <Data>
One Offset per D5h command.
-Send queue save command via Module Command E3h
data “05”
- Send save command via Module Command E3h data “00”
-Module will automatically save the new settings
-Module command D5h and 10h will automatically lock.
-Module command E2h will be reset.
-Module can now be turn-on.
D7h
MEMORY_ERROR
Asserted Bits means that there is an invalid checksum
iHP Manual 182 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
Bit 15- 5: Reserved/ Unused
Bit 4: Memory Error Fault Auto Bit
Bit4 Assertion due to User Settings Applied. Updated
only in Initialization
Bit 4 Deassertion: Writing in 0xF9 and 0xFA Command
Bit 3: Memory Error Fault Bit
Bit3 Assertion/De-assertion due Bitwise OR from Bit0 to
Bit2
Bit 2: Reference Memory Page Error Bit.
Bit 1: Config Memory Page Error Bit.
Bit 0: User Calibration Memory Page Error Bit.
E2h
CONFIG_UNLOCK_CODE
Command for entering password
o Lock: 20h 20h 20h 20h
o User access password: 55h 73h 65h 72h
o Admin access password: 43h 6Fh 6Eh 66h
User Access
o Module command F9h, and FAh.
Admin Access
o Module command E4h, F7h, B0h, B3h, B4h, and D5h.
E3h
CONFIG_CTRL
Command for modifying and saving sensitive registers.
o Used for registers B0h, D5h, E4h, F7h
Write data is as follows:
00h = Save & Lock Registers
01h = Unlock Registers
02h = Queue E4h Saving
03h = Queue F7h Saving
05h = Queue D5h Saving
06h = Queue B0h Saving
iHP Manual 183 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
E4h
CONFIG_DATA
Contains the Module Housekeeping Configuration.
User can Read the Module Housekeeping Configuration
Read E4h (Offset)
User can write the Housekeeping Configuration. Write
Procedure
-Turn-off the module either
o Module Operational Command
o ISOCOMM Operational Command
o Module HW signal ( SYS_M_INHIBIT and
SYS_M_ENABLE#)
o RACK HW signal (Global Inhibit/Enable Logic “0” and
Global Inhibit/Enable Logic “1”)
-Write Protect Disable via Module command10h
-Enter Admin Password via Module command E2h
-Send Unlock register via Module Command E3h data “01”
-Write all the required data using command E4h.
Write E4h <Offset> <Data>
One Offset per E4h command.
-Send queue save command via Module Command E3h
data “02”
- Send save command via Module Command E3h data “00”
-Module will automatically save the new settings
-Module command D5h and 10h will automatically lock.
-Module command E2h will be reset.
-Module can now be turn-on.
EDh
READ_VOR
Command used to read VOR reported value
F6h
CAL_RAW_READ
Command to read the raw data of various parameters used
for Module Calibration (Vout, Vor, Internal Shunt, External
Shunt, IMON, TEMP3 and TEMP1).
Used by Calibration GUI
iHP Manual 184 | P a g e
iHP Owners Manual
Command
Code
Command Name
Definition
F7h
CAL_COEF_DATA
Register used to Read/Write Module Calibration Parameters
o VPROG, IPROG IMON, TEMP1, and TEMP2 coefficient.
o Voltage and Current programming reporting Factory
default coefficient
o Calibrated nominal setting VREF and IREF factory default
setting.
o Factory calibration date.
Used by Calibration GUI
F9h
USER_SETTINGS
Register used to Read/Write Module Calibration Parameters
o Voltage and Current programming reporting active
coefficient
o User calibration date.
Used by Calibration GUI
FAh
RESTORE_FACTORY_CAL
Command which restores the Factory Calibration Settings for
digital programming & reporting parameters
Procedure:
User can restore factory cal for digital programming and
reporting parameters. Write Procedure
-Write Protect Disable via Module command 10h
-Enter USER Password via Module command E2h
- Write Command D4h data “01h”
-Send byte to FAh
-Write Command D4h data “01h”
-User can implement save command using ISOCOMM
Command D6h.
FBh
READCONVREF_FILT
Command to read the raw data of various parameters used
for Module Calibration (VPROG and IPROG).
Used by Calibration GUI
Module Command Data Classifications for MFR_REG
iHP Manual 185 | P a g e
iHP Owners Manual
Command
Command Name
Transaction
Type
# of
Bytes
Data
Format
Multiplier
Data
Unit
Write
Prtotection
40h
VOUT_OV_FAULT_LIMIT
Read Word
3
Direct
10000
V
N/A
42h
VOUT_OV_WARN_LIMIT
Read Word
3
Direct
10000
V
N/A
43h
VOUT_UV_WARN_LIMIT
Read Word
3
Direct
10000
V
N/A
44h
VOUT_UV_FAULT_LIMIT
Read Word
3
Direct
10000
V
N/A
46h
IOUT_OC_FAULT_LIMIT
Read Word
3
Direct
10000
A
N/A
47h
IOUT_OC_FAULT_RESPONSE
Read Byte
1
Bitmapped
N/A
N/A
N/A
4Ah
IOUT_OC_WARN_LIMIT
Read Word
3
Direct
10000
A
N/A
4Eh
OC_WARN_LIMIT_MULTIPLIER
Block Read
/ Write
Word
2
Direct
100
%
Basic
53h
VoutLow_Sckt_Level
Read/Write
Word
3
Direct
10000
V
Basic
54h
IoutHigh_Sckt_Level
Read/Write
Word
3
Direct
10000
A
Basic
61h
TON_RISE
Read Word
2
Linear
N/A
ms
N/A
62h
TON_MAX_FAULT_LIMIT
Read Word
2
Linear
N/A
ms
N/A
63h
TON_MAX_FAULT_RESPONSE
Read Byte
1
Bitmapped
N/A
N/A
N/A
6Ah
POUT_OP_WARN_LIMIT
Read Word
2
Linear
N/A
W
N/A
8Eh
READ_TEMPERATURE_2
Read Word
2
Linear
N/A
0C
N/A
B3h
PCSI
Block
Read/Write
Varies
Direct
N/A
N/A
Factory
Config*
B9h
SET_WIRE_IMPEDANCE
Block
Read/Write
2
DIRECT
1
Mohm
Basic
BBh
DSP_SOFTWARE RESET
Send Byte
0
N/A
N/A
N/A
Factory
Config*
D4h
MODULE_OPERATION
Read/Write
Byte
1
Bitmapped
N/A
N/A
Basic
D5h
PCSI_DATA_CMD
Block
Read/Write
Varies
Direct
N/A
N/A
Factory
Config*
D7h
MEMORY_ERROR
Read Word
1
Bitmapped
N/A
N/A
N/A
iHP Manual 186 | P a g e
iHP Owners Manual
Command
Command Name
Transaction
Type
# of
Bytes
Data
Format
Multiplier
Data
Unit
Write
Prtotection
E2h
CONFIG_UNLOCK_CODE
Read/Write
Byte
4
N/A
N/A
N/A
Basic
E3h
CONFIG_CTRL
WRITE Byte
1
MFR
N/A
N/A
Basic
E4h
CONFIG_DATA
Block
Read/Write
4
Direct
N/A
N/A
Factory
Config*
EDh
READ_VOR
Block Read
3
Direct
10000
V
N/A
F6h
CAL_RAW_READ
Block Read
4
Direct
N/A
N/A
N/A
F7h
CAL_COEF_DATA
Block
Read/Write
4
Direct
N/A
N/A
Factory
Config*
F9h
USER_SETTINGS
Block
Read/Write
4
Direct
N/A
N/A
User
Config**
FAh
RESTORE_FACTORY_CAL
Write Byte
1
N/A
N/A
N/A
User
Config**
FBh
READCONVREF_FILT
Block Read
8
Direct
N/A
N/A
N/A
Note: * - Factory Config requires Factory Password
** - User Config requires User Password
iHP Manual 187 | P a g e
iHP Owners Manual
For ISOCOMM B8h
B8h
SET_MODULE_LOAD_TYPE
Command to read Module
compensation data: 01h –
Resistive load compensation
Data: 02h - Capacitive load
compensation
Data: 04h - LED load
compensation
Module will not accept any data
aside from the above listing.
If set outside the accepted data,
o Module will revert to the
previous setting.
o STATUS_CML will be
asserted.
o Module is still operational.
Voltage Source:
o Every change to Voltage
Source, B8h will
automatically be set to data
02h
o In order for Module to work
properly, B8h should be set
to data 02h during Voltage
Source.
Current Source,
o B8h can be configured to
01h, 02h, or 03h. Depending
on user application.
o When changing to Current
Source, last setting of B8h
during Current Source
operation will be set to the
Module.
iHP Manual 188 | P a g e
iHP Owners Manual
Here are the settings of each module based on latest config (ini) file:
24V
48V
80V
125V
250V
VOR Clamp
1.087V
2.174V
3.6233V
6.0388V
11.4421V
Brick Wall OVP
31.3V
64.5V
110V
162V
315V
VOR clamp level based on actual module read back
Brick Wall OVP calculated based on DSP pin voltage
Values may vary between units due to effects of calibration since both settings are based on DSP pin
voltages
iHP Manual 189 | P a g e
iHP Owners Manual
Appendix D – FAE and VAR Only
Input Config Change
iHP Rack can operate on 3P Low Line (3P 187.5Vac to 264Vac) and 3P High Line (3P 342Vac to 528Vac).
At any instance, the iHP RACK can operate only in one input line either 3P Low Line or 3P High Line.
The Input line operation of an iHP RACK can be change from 3P High Line to 3P Low Line or vice-versa.
The input configuration is dependent on the Input Config Board. This board is internal to the iHP RACK.
There are two types of Input Configuration board. These are the 3P Low Line Config Board and 3P High
Line Config Board.
Warning! - Unit will be DAMAGE: if a high line input voltage is applied to a iHP RACK unit
with 3P Low Line config.
The Value Added Resellers (VARs) are authorized to change the Input Config board. Users are not
allowed to do the hardware change.
Each type of Input Configuration Board has a label printed on the board.
3P High Line Board label is “3P HIGH LINE CONFIG BOARD” in white color.
3P Low Line Board label is “3P LOW LINE CONFIG BOARD” in Black color.
3P High Line Config Board
iHP Manual 190 | P a g e
iHP Owners Manual
3P Low Line Config Board
1P Config Board
iHP Manual 191 | P a g e
iHP Owners Manual
Required Tools for the Input Configuration Board Change.
- Torx screwdriver #15
- Torx screwdriver #20
Input Configuration Board Screw
Input Configuration Board screw is an M4 screw with 8mm length.
Recommended screw for the Input Configuration Board
iHP Manual 192 | P a g e
iHP Owners Manual
Manufacturer
Manufacturer Part Number
BOSSARD
6166428
NISSHI METAL SCREW
G-A01-B1589
Input Configuration Board
Number of M4 Screw
3P Low Line Configuration
12pcs
3P High Line Configuration
9pcs
Procedure to change the Input Configuration Board.
Notes:
- Be sure that the unit is not connected to the input AC.
- In this procedure, the Input Config Board was change from 3P High Line to 3P Low Line.
- Below procedure is also applicable in changing 3P Low Line to 3P High Line Input Config Board.
1. Remove Top Cover screws.
Tool: Torx screwdriver #15
24KW RACK
iHP Manual 193 | P a g e
iHP Owners Manual
12KW RACK
iHP Manual 194 | P a g e
iHP Owners Manual
2. Remove Side Cover Screws
Tool: Torx screwdriver #15
24KW RACK
12KW RACK
3. Push the Side cover upward then remove from the iHP RACK
24KW RACK
iHP Manual 195 | P a g e
iHP Owners Manual
12KW RACK
4. Remove screw of the Config Label.
Tool: Torx screwdriver #15
iHP Manual 196 | P a g e
iHP Owners Manual
5. Push the Top cover near the Config Label upward. This will remove the Config Label.
6. Remove the screws in the Config Board. This will detach the config board from the iHP RACK.
Tool: Torx screwdriver #20
Note: Number of screws for 3P Low Line Config Board and 3P High Line Config Board are not the same.
7. Prepare the Config Board to be installed in the iHP RACK
iHP Manual 197 | P a g e
iHP Owners Manual
8. Install the Config Board in the AC Interconnect Board using screw.
Tool: Torx screwdriver #20
Note: Number of screws for 3P Low Line Config Board and 3P High Line Config Board are not the same
9. Push the Top cover near the Config Label upward. Then, insert the Config Label.
iHP Manual 198 | P a g e
iHP Owners Manual
10. Fix the Config Label via screw.
Tool: Torx screwdriver #15
11. Config Label cabling harnessing.
iHP Manual 199 | P a g e
iHP Owners Manual
12. Install the Side cover to the iHP RACK using screw.
Tool: Torx screwdriver #15
Please take note the Alignment pin of the Side Panel to the iHP RACK.
24KW RACK
iHP Manual 200 | P a g e
iHP Owners Manual
12KW RACK
13. Config Board Change Done.
