9
Relay I/O Block G7TC
Reduces Wiring within the Control
Panel and Reduces Installation Time
1Compact 16-pt models: 182 W l85 D
l68 H mm; 8-pt block width is 102 mm
1Can be connected to the PLC with a
connecting cable and a snap-in
connector
1Equipped with surge suppressor circuit
and LED indicators
1Mounts easily on a DIN rail
èò
Ordering Information
3G7TC RELAY I/O BLOCKS
Relay I/O Blocks include the I/O Base with G7T Relays installed.
I/O classification I/O points Internal I/O circuit common Rated coil voltage Part number
Input 16 NPN (Œcommon) 24 VDC G7TC-ID16 DC24V
p
(
)
G7TC-ID16-5 DC24V (See Note 1)
NPN (Œcommon) 110/120 VAC G7TC-IA16 AC110/120V
(
)
G7TC-IA16-5 AC100/110V (See Note 1)
220/240 VAC G7TC-IA16 AC220/240V
Output
(
S
N
t
2
)
16 NPN (common) 12 VDC G7TC-OC16 DC12V
p
(See Note 2)
(
)
24 VDC G7TC-OC16 DC24V
PNP (Œcommon) 24 VDC G7TC-OC16-1 DC24V
8NPN (common) 12 VDC G7TC-OC08 DC12V
(
)
24 VDC G7TC-OC08 DC24V
PNP (Œcommon) 24 VDC G7TC-OC08-1 DC24V
Note: 1. The “-5” Block is for use with DRT1-ID16X DeviceNet Remote Adapter.
2. Output relays are rated up to 250 VAC. See “Specifications” for specific relay ratings.
3P7TF BLOCK BASES AND RELAYS
Combine Relays and P7TF Block Bases to match your application requirements. Use the table below to configure Relay Blocks.
I/O points Internal I/O
i
i
t
Part number
p
circuit Block Base I/O Relay Solid State Relay
16 inputs
(
A
C
i
l
)
NPN (-- common) P7TF-IS16 AC110/120V 1A G7T-1122S AC110/120 or 25 mA G3TA-IAZR02S AC100/240V
(AC coil)
(
)
G7T-1122S AC200/220V
16 inputs
(DC coil) NPN (-- common) P7TF-IS16 DC24V 1A G7T-1122S DC24V 25 mA G3TA-IDZR02S DC5-24V
16 outputs
(
D
C
i
)
NPN (+ common) P7TF-OS16 DC12V 5A G7T-1112S DC12V 2A G3TA-ODX02S 12VDC
(DC coil) NPN (+ common) P7TF-OS16 DC24V 5A G7T-1112S DC24V 2A G3TA-ODX02S DC24V or
PNP (-- common) P7TF-OS16-1 DC24V 5A G7T-1112S DC24V 1A G3TA-OD201S DC24V
8 outputs
(
D
C
i
)
NPN (+ common) P7TF-OS08 DC12V 5A G7T-1112S DC12V 2A G3TA-ODX02S 12VDC
(DC coil) NPN (+ common) P7TF-OS08 DC24V 5A G7T-1112S DC24V 2A G3TA-ODX02S DC24V or
PNP (-- common) P7TF-OS08-1 DC24V 5A G7T-1112S DC24V 1A G3TA-OD201S DC24V
G7TC G7TC
2
1. Input/Output Classification
I : For input
O:For output
2. Type of I/O Signal
A :AC coil type for input relays mounted
D:DC coil type for input relays mounted
C:Contact output
3. Number of I/O Points
16: 16 points
08: 8 points (for output only)
4. Internal I/O Circuit Common
Blank:NPN (+) common
1: PNP (--) common
5. Block for use with DeviceNet
G7TC- -
123 4 1. Input/Output Classification
I : For input
O:For output
2. Type of I/O Signal
S :Socket for input or output relays
3. Number of I/O Points
16: 16 points
08: 8 points (for output only)
4. Internal I/O Circuit Common
Blank: NPN (+) common
1: PNP (--) common
P7TF- -
123 4
3CONNECTOR CABLES
Item Length Part number
Connecting cable
i
t
h
i
1.0 m (3.28 ft) G79-Y100C
g
with crimp
t
y
p
e
h
o
o
k
s
1.5 m (4.92 ft) G79-Y150C
t
ype
h
oo
k
s2.0 m (6.56 ft) G79-Y200C
3.0 m (9.84 ft) G79-Y300C
5.0 m (16.40 ft) G79-Y500C
Connecting cable
i
t
h
t
1.0 m (3.28 ft) G79-100C
g
with connector
o
n
b
o
t
h
e
n
d
s
1.5 m (4.92 ft) G79-150C
on
b
o
t
h
en
d
s2.0 m (6.56 ft) G79-200C
3.0 m (9.84 ft) G79-300C
5.0 m (16.40 ft) G79-500C
3ACCESSORIES (ORDER SEPARATELY)
Description Part number
Single I/O socket for SPST and SPDT Relays P7TF-05
I
n
d
i
c
a
t
o
r
m
o
d
u
l
e
f
o
r
A
C
(
w
i
t
h
v
a
r
i
s
t
o
r
s
u
r
g
e
s
u
pp
r
e
s
s
i
o
n
)
P
7
0
A
I
n
d
i
cator mo
d
u
l
e
f
or
A
C
(
w
i
t
h
var
i
stor surge suppress
i
on
)
P
7
0
A
Indicator module for DC (with diode surge suppression) P70D
Output short circuit protection module G77-5
Shorting bar G78-04
F
i
n
g
e
r
p
r
o
t
e
c
t
i
o
n
c
o
v
e
r
f
o
r
1
6
-
p
t
b
l
o
c
k
s
G
7
8
-
E
F
i
nger protect
i
on cover
f
or
1
6
-pt
b
l
oc
k
s
G
7
8
-
E
Specifications
3RATINGS: G7T RELAYS
Coil Data (Common to Input/Output per Relay)
Rated voltage
(V) Rated current (mA) Coil
resistance
(
S
N
)
Must
operate Must
release Maximum
voltage Power consumption
(
)
50 Hz 60 Hz
e
s
s
t
a
c
e
(See Note 1) Percent of rated voltage per Relay per 16 Relays
AC 110/120
220/240 7.5/—
3.7/— 6.4/7.0
3.2/3.5 13,000
48,300 80% max. 30% min. 110% 0.7 VA 11 VA
DC 12 42 290 80% max. 10% min. 110% 0.5 W 8W
DC 24 21 1,150 80% max. 10% min. 110% 0.5 W 8W
Note: 1. The rated current and coil resistance are measured at a coil temperature of +23°C with a tolerance of +15%/--20% for AC rated
current and ±15% for coil resistance.
2. Approx. 4 mA flows into each LED indicator. To calculate the power supply capacity, add the current value of each indicator.
G7TC G7TC
3
Contact Data (G7T I/O Relay)
Classification For input For output
Load type Resistive load (cosϕ=1) Inductive load
(cosϕ=0.4 L/R=7 ms) Resistive load (cosϕ=1) Inductive load
(cosϕ=0.4 L/R=7 ms)
Carry current 1A 5A
Switching voltage 250 VAC, 125 VDC
Switching current 1A 0.5 A 5A 2A
Switching power DC 24 W DC 12 W DC 120 W
AC 440 VA DC 48 W
AC 220 VA
Min. permissible load 100 µAat1V 10 mA at 5 V
Electrical life 10,000,000 operations
(at 10 mA)
50,000 operations
(at 1 A)
2,500,000 operations
(at 10 mA)
20,000 operations
(at 1 A)
1,000,000 operations (under rated load)
Mechanical life 50,000,000 operations
3CHARACTERISTICS: G7T RELAYS
Model G7TC-IA16
(Input, AC coil) G7TC-ID16
(Input, DC coil) G7TC-OC16 (-1)
(Output, DC coil) G7TC-OC08 (-1)
(Output, DC coil)
LED color Red Green Green
Case color Transparent red Transparent green Transparent
Contact resistance 50 mmax.
Operate time 15 ms max.
Release time 15 ms max.
Max. operating
f
Mechanical limit 18,000 operations/hour
p
g
frequency At rated load 1,800 operations/hour
Insulation resistance 100 Mat 500 VDC
Dielectric
t
t
h
Between coil and contact 2,000 VAC, 50/60 Hz for 1 minute
strength Between same polarity
contacts 1,000 VAC, 50/60 Hz for 1 minute
Between paired connectors 250 VAC, 50/60 Hz for 1 minute
Malfunction vibration 10 to 55 Hz with 1.0-mm double amplitude
Malfunction shock 200 m/s2
Noise immunity Noise level: 1.5 kV; pulse width: 100 ns to 1 µs
Rated voltage between positive and negative
terminal blocks Rated voltage of controller’s (PLC or
other) input circuit 24 VDC ±5%
Rated current between positive and negative
terminal blocks Input circuit current of controller (PLC or
other) x number of ON points 24 VDC: 25 mA x number of ON points
Cable length To controller 5 m max. (reference value)
g
To I/O devices 50 m max. (reference value, for 2-mm2
CVV cable) Dependent on load
Ambient operating temperature 0°Cto55
°C(32
°F to 131°F)
Ambient operating humidity 35% to 85%
I/O terminal tightening torque 8to12kg:cm
Coil surge absorber Variable resistor Diode (1 A, 400 V)
Weight Approx. 640 g Approx. 630 g Approx. 670 g Approx. 350 g
G7TC G7TC
4
UL and CSA Standards
StandardG7TCI/OBlocks,exceptfortheG7TC-OC16-1andtheG7TC-OC08(-1),havemetULandCSAstandards(ULfileno.E41643;CSA
file no. LR31928).
Note that the following UL- and CSA-qualifying ratings differ from the performance characteristics of the individual models:
Part number Coil ratings Contact ratings
G7TC-ID16, G7TC-IA16 10 mA/point, 24 VDC 250 VAC max.
G7TC-OC16 Coil drive current, 24 VDC Inductive load: 10 A, 250 VAC
Resistive load: 10 A, 30 VDC
Rated horsepower: 1/2 HP, 240 VAC
3RATINGS: G3TA SOLID STATE RELAYS
Input Relay
Coil Data
Part number Rated voltage Operating
l
t
Input current Voltage level
p
g
voltage Must operate
voltage Must release
voltage
G3TA-IAZR02S AC100/240V 100 to 240 VAC 80 to 264 VDC 5mAmax. 80 VAC max. 10 VAC min.
G3TA-IDZR02S DC5-24V 5to24VDC 4to32VDC 4VDCmax. 1VDCmin.
Contact Data
Part number Logic level supply
voltage Output breakdown
voltage Output current Output current
(load current)
G3TA-IAZR02S AC100/240V 4to32VDC 32 VDC max. 25 mA max. 0.1to25mA
G3TA-IDZR02S DC5-24V
Output Relay
Coil Data
Part number Rated voltage Operating
l
t
Input
i
d
Voltage level
p
g
voltage
p
impedance Must operate
voltage Must release
voltage
G3TA-OA202SZ DC12V 12 VDC 9.6 to 13.2 VDC 0.9 kΩ±20% 9.6 VDC max. 2VDCmin.
G3TA-OA202SZ DC24V 24 VDC 19.2 to 26.4 VDC 1.7 kΩ±20% 19.2 VDC max.
G3TA-ODX02S DC24V 12 VDC 9.6 to 13.2 VDC 3.5 kΩ±20% 9.6 VDC max.
24 VDC 19.2 to 26.4 VDC 6.5 kΩ±20% 19.2 VDC max.
G3TA-OD201S DC24V 24 VDC 19.2 to 26.4 VDC 6.4 kΩ±20% 19.2 VDC max.
Contact Data
Part number Applicable load
Rated load voltage Load voltage Load current
(See Note) Inrush current
G3TA-OA202SZ 100 to 240 VAC 75 to 264 VAC 0.05 to 2 A 30 A (60 Hz, 1 cycle)
G3TA-OA202SL 100 to 240 VAC 75 to 264 VAC
G3TA-ODX02S 5to48VDC 4to60VDC 0.01 to 2 A 12 A (10 ms)
G3TA-OD201S 48 to 200 VDC 40 to 200 VDC 0.01 to 1 A 6A(10ms)
Note: The minimum current value is measured at 10°Cmin.
G7TC G7TC
5
3CHARACTERISTICS: G3TA SOLID STATE RELAYS
Input Relay
Item G3TA-IAZR02S G3TA-IDZR02S
Operate time 20 ms max. 0.5 ms max.
Release time 20 ms max. 0.5 ms max.
Output ON voltage drop 1.6 V max.
Leakage current 5µAmax.
Insulation resistance 100 Mmin. at 500 VDC
Dielectric strength 4,000 VAC, 50/60 Hz for 1 min between input and output
Vibration resistance Malfunction: 10 to 55 Hz, 1.5-mm double amplitude
Shock resistance Malfunction: 1,000 m/s2(approx. 100G)
Ambient temperature Operating: --30°Cto80
°C(--22
°F to 176°F) with no icing or condensation
Storage: --30°C to 100°C(--22
°F to 212°F) with no icing or condensation
Ambient humidity Operating: 45% to 85%
Approved standards UL508 file No. E64562/CSA C22.2 (No. 0, No. 14) file No. LR35535
Weight Approx. 16 g
Output Relay
Item G3TA-OA202SZ G3TA-ODX02S G3TA-OD201S
Operate time 1/2 of load power source cycle
+ 1 ms max. 0.5 ms max. 2msmax.
Release time 1/2 of load power source cycle
+ 1 ms max. 2msmax. 2msmax.
Output ON voltage drop 1.6 V max. 2.5 V max.
Leakage current 5 mA max. at 200 VAC 1mAmax.
Insulation resistance 100 Mmin. at 500 VDC
Dielectric strength 4,000 VAC, 50/60 Hz for 1 min between input and output
Vibration resistance Malfunction: 10 to 55 Hz, 1.5-mm double amplitude
Shock resistance Malfunction: 1,000 m/s2(approx. 100G)
Ambient temperature Operating: --30°Cto80
°C(--22
°F to 176°F) with no icing or condensation
Storage: --30°C to 100°C(--22
°F to 212°F) with no icing or condensation
Ambient humidity Operating: 45% to 85%
Approved standards UL508 file No. E64562, CSA C22.2 (No. 14) file No. LR3553
Weight Approx. 23 g
3MIXING G3TA WITH G7T RELAYS IN THE SAME I/O BLOCK
With up to four G3TA SSRs mounted before
G7T Relays, 2-A loads can be switched. With G3TA SSRs mounted before every other
G7T Relays, 2-A loads can be switched.
G3TA G7T G3TA G7T
G7TC G7TC
6
Engineering Data
3G7T RELAYS
3G3TA SOLID STATE RELAYS
Load Current vs. Ambient Temperature Characteristics
G3TA-OA202SZ/OA202SL/ODX02S
Ambient temperature (°C) Ambient temperature (°C)
Load current (A)
Load current (A)
G3TA-OD201S
Single-point mounting
16-point mounting
Single-point mounting
16-point mounting
Inrush Current
Non-repetitive (Keep the inrush current to half the rated value if it occurs repetitively.)
G3TA-ODX02S G3TA-OD201S
Inrush current (A. Peak)
Energizing time (ms)
Inrush current (A. Peak)
Energizing time (ms)
Inrush current (A. Peak)
Energizing time (ms)
G3TA-OA202SZ
G7TC G7TC
7
Operation
3G3TA SOLID STATE RELAYS
Circuit Configuration
Type Part number Case color Indicator Circuit
AC output G3TA-OA202SZ
(withzerocross
function)
G3TA-OA202SL
(without zero cross
function)
Black Yes Constant-cur-
rent circuit Zero cross
circuit Drive circuit
DC output G3TA-ODX02S
G3TA-OD201S Black Yes Constant-cur-
rent circuit Amplification
circuit
AC input G3TA-IAZR02S Red Yes Amplification
circuit
Constant-cur-
rent circuit
Rectifica-
tion circuit
DC input G3TA-IDZR02S Green Yes Amplification
C
o
n
s
t
a
n
t
-
c
u
r
-
G3TA-IDZR02SM No
A
m
p
l
i
f
i
c
a
t
i
o
n
circuit
Constant-cur-
rent circuit
External Connections (Bottom View)
G3TA-IAZR02S G3TA-IDZR02S/IDZR02SM
G3TA-OA G3TA-OD
3
+4
-- 5
13
+4
-- 5
1
Output Output
3+
45
1
--
Load
Load power supply
3
+4
-- 5
1
+
--
Load
Load power supply
G7TC G7TC
8
Dimensions
Unit: mm (inch)
3G7TC RELAY I/O BLOCKS
I/O Block for NPN Input (Œ
ŒŒ
Œcommon)
85
(3.35)
182 (7.17) 68 (2.68)
G7TC-ID16
G7TC-IA16
Terminal Arrangement/Internal Connection
G7TC-ID16 (-5)
(See Note)
Note: When the product has a “-5” at the end of the part number, connector pin number 9 and 19 are negative and connector number
10 and 20 are positive.
G7TC G7TC
9
G7TC-IA16 (-5)
(See Note)
Note: When the product has a “-5” at the end of the part number, connector pin number 9 and 19 are negative and connector pin num-
ber 10 and 20 are positive.
I/O Block for Output
G7TC-OC16 (NPN output/
common)
G7TC-OC16-1 (PNP output/Œ
ŒŒ
Œcommon)
G7TC-OC8 (NPN output/
common)
G7TC-OC8-1 (PNP output/Œ
ŒŒ
Œcommon)
85
(3.35)
182 (7.17) 16 pts
102 (4.02) 8 pts 68
(2.68)
G7TC G7TC
10
Terminal Arrangement/Internal Connection
G7TC-OC16
A controller with an NPN transistor, common output can be connected to the G7TC-OC16.
G7TC-OC16-1 (PNP output/Œ
ŒŒ
Œcommon)
A controller with a PNP transistor, common output can be connected to the G7TC-OC16-1. Do not connect the G71 Remote Interface
to the G7TC-OC16-1. Due to the difference in polarity, the G71 will be damaged if the G7TC-OC16-1 and the G71 are connected to
each other. Use the G7TC-OC16 (NPN output/common) instead, to connect to the G71.
Terminal Arrangement/Internal Connection
G7TC G7TC
11
G7TC-OC08
A controller with an NPN transistor, common output can be connected to the G7TC-OC08.
G7TC-OC08-1 (PNP output/Œ
ŒŒ
Œcommon)
A controller with a PNP transistor, common output can be connected to the G7TC-OC08-1. Do not connect the G7TC-OC08-1 with the
G71. Due to the difference in polarity, the G71 will be damaged if the G7TC-OC08-1 and the G71 are connected to each other. Use the
G7TC-OC08 (NPN output/common) instead, to connect to the G71.
Connector Pin Configuration
Top View
Note: Pin numbers are indicated for convenience. The ?markcanbeusedto
determine orientation.
G7TC G7TC
12
3G7T RELAY
Unit: mm (inch)
SPST-NO Type
G7T-1122S (for input)
G7T-1112S (for output)
32 max.
39 max.
(1.54)
29 max.
10 max.
(0.39)
Four 1-dia. holes
Terminal Arrangement/
Internal Connections
(Bottom View)
SPST-NC Type
G7T-1012S (for output)
32 max.
29 max.
Four 1-dia. holes
Terminal Arrangement/
Internal Connections
(Bottom View)
3.15
(0.12)
0.5
2.4
1.6
15
4 (0.16)
10 max.
(0.39)
33.5 max.
(1.32)
3.15
(0.12)
10 max.
(0.39)
33.5 max.
(1.32)
0.52.4
1.6
39 max.
(1.54) 15
4 (0.16)
10 max.
(0.39)
3G3TA SOLID STATE RELAYS
28.4
31.7 24
7.1 7.5 9 6
35.5 max (1.40)
39 max.
(1.54)
10 max.
(0.39)
G7TC G7TC
13
Unit: mm (inch)
3P7TF BLOCK BASES
For Input (NPN, Œ
ŒŒ
ŒCommon)
P7TF-IS16
32.5
21
26 34
810
M3.5 35.3+0.2
0
182 (7.17)
85
(3.35)
68 (2.68)
For Output (NPN,
Common)
P7TF-OS16
810
M3.5
32.5
21
35.3+0.2
0
182 (7.17)
85
(3.35)
68 (2.68)
For Output (PNP, Œ
ŒŒ
ŒCommon)
P7TF-OS08
32.5
21
M3.5
810
35.3+0.2
0
P7TF-05
Five, M3.5 x 8
Square washer faced screw
68 (2.68)
85
(3.35)
102 (4.02)
71.5 max.
(2.81)
59 max. (2.32)
19 max.
(0.75)
G7TC G7TC
14
G7TC Internal I/O Circuit Common
PNP Output
(Output Only)
Input
PLC PLC
NPN
Output
PLCG7TC G7TC G7TC
Accessories (Order Separately)
3G79 CONNECTING CABLES
G79 Connecting Cable with Crimp-type Hooks
Use these convenient Cables to connect relay I/O Blocks to devices equipped with screw terminals. Power line capacity must be within 50
mA per I/O point. Always check driver capacity and I/O relay power consumption when using an Output Block. Hoods are labeled with
corresponding connector pin numbers. Connect hooks 9 and 19 and hooks 10 and 20 together when using the G7TC-OC08.
Length (ç)Part number
1,000 mm G79-Y100C
1,500 mm G79-Y150C
2,000 mm G79-Y200C
3,000 mm G79-Y300C
5,000 mm G79-Y500C
G79 Connecting Cable with One-to-One Connector
This Cable is convenient for connecting a Relay I/O Block to a single device equipped with one connector socket.
Length (ç)Part number
1,000 mm G79-100C
1,500 mm G79-150C
2,000 mm G79-200C
3,000 mm G79-300C
5,000 mm G79-500C
G7TC G7TC
15
3G7TC TO PLC MODULE CONNECTION OPTIONS
One-to-One Connections: (16 Points per Cable)
The connecting cables with crimp hooks allow G7TC and P7TF blocks to be used with PLCs from all manufacturers.
Relay block Omron PLC module Connection method to PLC Connecting cable
Inputs
G7TC-1A16
G7TC-ID16
P7TF-IS16
3G2A5-ID213 (16 pts)
3G2A5-IM211 (16 pts)
C200H-ID212 (16 pts)
C200H-IM212 (16 pts)
CQM1-ID212 (16 pts)
Crimp hooks G79-Y___C
C500-MD211CN (input side only)
C200H-MD215 (input side only)
C200H-ID215 (32 pts)
One-to-one connector G79-___C
G79-___C(2)
Outputs
G7TC-OC16
P7TF-OS16 3G2A5-OC221 (16 pts)
3G2A5-OC223 (16 pts)
3G2A5-OD215 (16 pts)
3G2A5-OD411 (16 pts)
C200H-OC225 (16 pts)
C200H-OD212 (16 pts)
CQM1-OC222 (16 pts)
CQM1-OD212 (16 pts)
Crimp hooks G79-Y___C
C500-OD415CN (16 pts)
C500-MD211CN (output side only)
C200H-MD115 (output side only)
C200H-MD215 (output side only)
C200H-OD215 (16 pts)
One-to-one connector G79-___C
One-to-Two Connections: (Cable Splits One Connector to Two Relay Blocks)
Relay block PLC module Connection method to PLC Connecting cable
Inputs
G7TC-1A16
G7TC-ID16
P7TF-IS16
3G2A5-ID219 (64 pts)
C500-ID114 (64 pts)
C500-ID218CN (32 pts)
C200H-ID216 (32 pts)
C200H-ID217 (64 pts)
CQM1-ID213 (32 pts)
Special cable that splits a single
connector at the PLC to two at the
relay blocks
G79-I___C___
(2 are required for 64-pt
modules)
Outputs
G7TC-OC16
P7TF-OS16 3G2A5-OD213 (64 pts)
C500-OD218 (32 pts)
C500-OD415CN (32 pts)
C200H-OD218 (32 pts)
CQM1-OD219 (64 pts)
Special cable that splits a single
connector at the PLC to two at the
relay blocks
G79-O___C___
(2 are required for 64-pt
modules)
High-density Connections (Cable Splits One Connector to Three Relay Blocks)
Relay block PLC module Connection method to PLC Connecting cable
Inputs
G7TC-IA16
G7TC-ID16
P7TF-IS16
CS1W-ID291 (96 pts)
CS1W-MD291 (48 pts, input side only) Special cable that splits a single
connector at the PLC to three at
the relay blocks
G79-___C-___-___
(2 are required for 96-pt
modules)
Outputs
G7TC-OC16
P7TF-OS16 CS1W-OD219 (96 pts)
CS1W-MD291 (48 pts, output side only) Special cable that splits a single
connector at the PLC to three at
the relay blocks
G79-___C-___-___
(2 are required for 96-pt
modules)
G7TC G7TC
16
Unit: mm (inch)
3SHORTING BAR
Use this piece for short-circuiting across terminals.
Max. current flow: 20 A
13.3
(0.52)12.5 4.5
37.8
(1.49)
R1.8 10 0.05 0.05 0.051010 2.5
R1.0
(0.10)
G78-04
Item Part number
Shorting bar G78-04
3FINGER PROTECTION COVER FOR G7TC OR P7TF (MEETS VDE 0106 PART 100)
G78-E
This cover is for 16-point relay blocks only and cannot be used with an 8-point relay block.
178 (7.01)
27
(1.06)
10 10 10
12.5
14.5
12.5
6.30 dia.
12.5
26.35
(1.04) 13.85
7.5
6
G7TC G7TC
17
I/O Block Details
3INPUT BLOCKS
G7TC-ID16
G7TC-IA16
Supply power to terminals 0 through
15 and C0 through C15 according to
the voltage specifications of the I/O
Relays and I/O Block. Do not reverse
positive and negative terminals on the
DC Input Block (0 through 15 are
positive; C0 through C15, negative).
Shorting bars are available.
Supply to the power terminal (positive
and negative) the rated voltage of the
controller’s input circuits (24, 12). Use
a low-noise power source.
3OUTPUT BLOCKS
G7TC-OC16(-1)
G7TC-OC08(-1)
Supply power to contact output
terminals 0 through 15 and C0 through
C15 according to the requirements of
the loads. A 4 terminal Shorting Bar is
available.
Supply to the power terminals (positive
and negative) power both for driving
the relays and for controller output
transistors. Match the controller and
I/O block voltage specifications. Use a
low-noise power source.
Output Block model G7TC-OC08 does
not have terminals 8 through 15 and
C8 through C15. Although a 20-pin
connector is used, pins 11 through 18
are not connected.
G7TC G7TC
18
To Increase the Number of Outputs
Use sockets (order separately) to increase the number of outputs or to use SPDT I/O Relays on the G7TC.
3EXTERNAL CONNECTION EXAMPLE
The following is an application example for the P7TF-05 using a SPDT Relay on a terminal of the G7TC-16(-1).
*Use the G77-S Output Short-Circuit Module in
place of the G7T I/O Relay. With the G77-S
voltage output is available between terminals 15
and C15. The maximum current is determined
according to the controller.
Note: If more than one G77-S Output Short-Circuit Module is employed, the voltage output of the terminals on the G7TC
is as follows:
G7TC-OS16: The positive side (the lower row) connects to the common line internally.
G7TC-OS16-1: The negative side (the upper row) connects to the common line internally.
3P7TF-05 SOCKET
The G7T Relays (SPST-NO, SPST-NC, and SPDT types) and the G3TA I/O Relays can be mounted on the P7TF-05 Socket.
To add SPDT relays (G7T-112S) to a G7TC or P7TF installation, use the G77-S Output Short-Circuit Module and the P7TF-05 Socket.
Specifications
Contact resistance 10 mmax.
Dielectric strength 2,000 VAC for 1 minute
Insulation resistance 100 Mat 500 V
Vibration 10 to 55 Hz, 1.0 mm double
amplitude
Shock 200 m/s2
Ambient temperature Operating: 0 to 55°C
(32°F to 131°F)
Humidity 35% to 85%
Weight Approx. 28 g
G7TC G7TC
19
Unit: mm (inch)
Dimensions
Note: Terminal 1 is positive when the I/O SSR is employed.
Internal Connections
(Top View)
19 max.
71.5 max.
(2.81)
59 max.
(2.32)
9
19.5
4
(0.75)
3P70 INDICATOR MODULE (WITH SURGE SUPPRESSING FUNCTION)
Remove the transparent style strip of the P7TF-05 socket and mount this module and it will function as an operation indicator with the
surge suppression.
Part number Applicable relay coil voltage Remarks
For AC relay P70A 110/120 VAC Surge suppressing system with varistor
y
220/240 VAC
g
g
y
For DC relay P70D 12/24 VDC Surge suppressing system with diode
Note: 1. Order the indicator module suitable for the relay coil voltage.
2. The indicator module for DC relays has a multiple power supply common to both 12 and 24 VDC.
Dimensions
Internal Connection
29.5 max.
(1.16)
32.5 max.
39 max.
20 0.5
1.6
2.6
8.5 max.
Two 1 dia. holes
(1.54)
(0.33)
G7TC G7TC
20
Unit: mm (inch)
3G77-S OUTPUT SHORT-CIRCUIT MODULE
The output of the I/O Block can be obtained without relays through the G77-S Output Short-Circuit Module. Note that the G77-S Output
Short-Circuit Module is not available for inputs.
Terminal Arrangement/Internal
Connections (Bottom View)
32 max.
3.15
(0.12)
0.5
2.4
1.6
39 max.
(1.54) 15
29 max.
33.5 max.
(1.32)
4
10 max.
(0.39)
10 max. (0.39)
Precautions
3CORRECT INSTALLATION
I/O Blocks are color coded, as shown below, according to
input/output and AC/DC specifications.
Block type I/O Terminal
label I/O Terminal
indicators I/O Relay
case
Output Block
(DC) Yellow Green Transparent
Input
B
l
k
DC Red Green Green
Block AC Red Red Red
Both Input and Output Blocks do not have internal power
supplies. For an Output Block, supply the relay drive power to the
positive and negative terminals (either 12 or 24 VDC). Loads
(terminal contacts 0 through 15) must also be supplied with
appropriate power. For an Input Block, supply power to the
positive and negative terminals for the input signals to the
controller.
The same Connecting Cable, G79-Y, is used for the G7TC-OC08
eight-point Output Block as for other I/O Blocks; leave 8 points
unconnected.
LEDs indicate the presence or absence of signals. Use the
display lever inside each relay for fault diagnosis. (Some relays
do not have this lever, depending on the specifications.)
Each relay must be pressed down until its hold-down hooks
engage completely. Heating or malfunction can result if relays are
not mounted properly.
Unlabeled terminals are not electrically connected. Use these for
repeater terminals.
LED positions and relay orientation differ between Input and
Output Blocks. This is to aid in differentiating Input Blocks from
Output Blocks and in following signal flow. DC I/O Blocks have
positive and negative terminals, with the positive terminals
normally on the top of the I/O Block. Reversing positive and
negative terminals will prevent operation.
Rails are generally used to mount Relay I/O Blocks. For screw
mounting, a 210-mm DIN rail is available that can be used as an
adapter in combination with End Plates (PFP-M, two required).
3USING A SHORTING BAR
A Shorting Bar is provided to connect four terminals. The current
capacity of the shorting bar is 20 A. As long as this current
capacity is not exceeded, the shorting bar can be used in
combination as shown at the right to connect more than four
terminals.
Operational errors can result if connectors are connected or re-
moved with power supplied to the I/O Block.
G7TC G7TC
Cat. No. GC RIO-1 04/00 Specifications subject to change without notice. Printed in U.S.A.
OMRON ELECTRONICS, INC.
OneEastCommerceDrive
Schaumburg, IL 60173
NOTE: DIMENSIONS SHOWN ARE IN MILLIMETERS. To convert millimeters to inches divide by 25.4.
1-800-55-OMRON
OMRON CANADA, INC.
885 Milner Avenue
Scarborough, Ontario M1B 5V
8
416-286-6465
9