H7ET-NFV1-B - OMRON AUTOMATION & SAFETY

Self-Powered Time Counter H7ET

Subminiature Time Counters With

Enhanced Appearance and Features

HLarge display with 8.6 mm (0.338 in) height

HAvailable with backlit LCD

HPNP/NPN DC voltage input available

HSeven digits, time range 0 to 3999d23.9h

HKey-protect switch to prevent front resetting

HSelectable time range: 999999.9h or

3999d23.9h and 999h59m59s or

9999h59.9m

HNEMA 4/IP66 front

HReplaceable battery

HNew black case

Ordering Information

JTIME COUNTERS

Count input Display Time range

999999.9h or 3999d23.9h (selectable) 999h59m59s or 9999h59.9m (selectable)

PNP/NPN universal DC

voltage input

7-segment LCD

with backlight

H7ET-NV-BH H7ET-NV1-BH

7-segment LCD H7ET-NV-B H7ET-NV1-B

AC/DC multi-voltage input 7-segment LCD H7ET-NFV-B H7ET-NFV1-B

No-voltage input 7-segment LCD H7ET-N-B H7ET-N1-B

JMODEL NUMBER LEGEND

H7ET - N -

1. Count Input

None: No-voltage input

V: PNP/NPN universal DC voltage input

FV: AC/DC multi-voltage input

2. Time Range

None: 999999.9h/3999d23.9h

1: 999h59m59s/9999h59.9m

3. Case Color

B: Black

4. Display

None: 7-segment LCD without backlight

H: 7-segment LCD with backlight

3 4

JACCESSORIES (ORDER SEPARATELY)

Item Part number

Replacement battery Y92S-36

Wire-wrap terminal (set of two terminals) Y92S-37

Panel-mounting adapter 26 mm ×45 mm Y92F-75

24.8 mm ×48.8 mm Y92F-77B

H7ET

Specifications

JGENERAL

Item H7ET-NV-B

H7ET-NV-BH

H7ET-NFV-B H7ET-N-B H7ET-NV1-B

H7ET-NV1-BH

H7ET-NFV1-B H7ET-N1-B

Operating mode UP type

Mounting method Panel mounting

External connections Screw terminals, optional wire-wrap terminals (See Note 3.)

Reset External/Manual reset

Display 7-segment LCD with or without backlight (character height: 8.6 mm) (See Note 1.)

Number of digits 7

Time range 0.0h to 999999.9h or 0.0h to 3999d23.9h (switchable

with switch)

0s to 999h59m59s or 0.0m to 9999h59.9m

(switchable with switch)

Count input PNP/NPN

universal DC

voltage input

AC/DC

multi-voltage

input

No-voltage

input

PNP/NPN

universal DC

voltage input

AC/DC

multi-voltage

input

No-voltage

input

Case color Black

Attachment Waterproof gasket, panel-mounting bracket, time unit labels (See Note 2.)

Approved standard UL508, CSA C22.2 No.14, Lloyds

Conforms to EN61010-1/IEC61010-1 (pollution degree2/overvoltage category III)

Conforms to VDE0106/P100

Note: 1. Only PNP/NPN universal DC voltage input models (-H models) are available with a backlight.

2. “-hours,” “-d-h,” “-h-m,” and “-h-m-s” labels are included.

3. Wire-wrap terminals (Y92S--37) can be ordered separately.

JRATINGS

Item H7ET-NVj-B, H7ET-NVj-BH H7ET-NFVj-B H7ET-Nj-B

Supply voltage Backlight model: 24 VDC (for

backlight)

No-backlight model: Not required

(powered by battery)

Not required (powered by battery)

Count input High (logic) level: 4.5 to 30 VDC

Low (logic) level: 0 to 2 VDC

(Input impedance: Approx. 4.7 kΩ)

High (logic) level: 24 to 240 VAC/

VDC, 50/60 Hz

Low (logic) level: 0 to 2.4 VAC/

VDC, 50/60 Hz

No voltage input

Maximum short-circuit impedance:

10 kΩmax.

Short-circuit residual voltage: 0.5 V

Reset input No voltage input

Maximum short-circuit impedance:

10 kΩmax.

Short-circuit residual voltage: 0.5 V

max.

Minimum open impedance: 750 kΩ

min.

max.

Minimum open impedance: 750 kΩ

min.

Minimum pulse width 1s

Reset system External reset and manual reset: minimum signal width of 20 ms

Terminal screw

tightening torque

0.98 N Smmax.

Ambient temperature Operating: --10°Cto55°C(14°F to 131°F) with no condensation or icing

Storage: --25°Cto65°C(--13°F to 149°F) with no condensation or icing

Ambient humidity Operating: 25% to 85%

H7ET H7ET

JCHARACTERISTICS

Item H7ET-NVj-j

H7ET-NVj-Hj

H7ET-NFVj-jH7ET-Nj-j

Time accuracy ±100 ppm (25°C)

Insulation resistance 100 MΩmin. (at 500 VDC)

between current-carrying metal

parts and exposed

non-current-carrying metal parts,

and between the backlight power

supply and count input

terminals/reset terminals for

backlight models

100 MΩmin. (at 500 VDC)

between current-carrying metal

parts and exposed

non-current-carrying metal parts

and between count input terminals

and reset terminals

100 MΩmin. (at 500 VDC)

between current-carrying metal

parts and exposed

non-current-carrying metal parts

Dielectric strength 1,000 VAC, 50/60 Hz for 1 min

between current-carrying metal

parts and exposed

non-current-carrying metal parts

and between the backlight power

supply and count input

terminals/reset terminals for

backlight models

3,700 VAC, 50/60 Hz for 1 min

between count input terminals and

exposed non-current-carrying

metal parts

2,200 VAC, 50/60 Hz for 1 min

between reset terminals and

exposed non-current-carrying

metal parts and between count

input terminals and reset terminals

1,000 VAC, 50/60 Hz for 1 min

between current-carrying metal

parts and exposed

non-current-carrying metal parts

Impulse withstand

voltage

4.5 kV between current-carrying

terminal and exposed

non-current-carrying metal parts

4.5 kV between current-carrying

terminal and exposed

non-current-carrying metal parts

3 kV between input terminals and

reset terminals

4.5 kV between current-carrying

terminal and exposed

non-current-carrying metal parts

Noise immunity Between input terminals: ±600 V in

normal mode, ±1.5 kV in command

mode

For backlight power supply

(backlight model): ±480 V in

normal mode, ±1.5 kV in command

mode

Between count input terminals:

±1.5 kV in normal mode, ±1.5 kV in

command mode

Between reset input terminals:

±500 V in normal mode, ±1.5 kV in

command mode

±500 V in normal mode, ±1.5 kV in

command mode

Static immunity ±8 kV (malfunction)

Vibration resistance Malfunction: 0.15-mm single amplitude at 10 to 55 Hz for 10 min each in 3 directions

Destruction: 0.375-mm single amplitude at 10 to 55 Hz for 2 hrs each in 3 directions

Shock resistance Malfunction: 200 m/s2{approx. 20G} 3 times each in 6 directions

Destruction: 300 m/s2{approx. 30G} 3 times each in 6 directions

Battery life 10 years min. with continuous input at 25°C (lithium battery)

EMC (EMI) EN50081-1

Emission Enclosure: EN55022 class B

(EMS) EN50082-2

Immunity ESD: EN61000-4-2: 4-kV contact discharge (level 2)

8-kV air discharge (level 3)

Immunity RF-interference from AM Radio Waves:

ENV50140: 10 V/m (80 MHz to 1 GHz) (level 3)

Immunity RF-interference from Pulse-modulated Radio Waves:

ENV50204: 20 V/m (900 MHz ±5MHz)(level3)

Immunity Conducted Disturbance: ENV50141: 10 V (0.15 to 80 MHz ) (level 3)

Immunity Burst: EN61000-4-4: 2-kV power line (level 3)

2-kV I/O signal line (level 4)

Enclosure rating Front panel: IP66, NEMA4 with waterproof packing

Terminal block: IP20

Weight (see note) Non-backlight model: Approx. 60 g

Backlight model: Approx. 65 g

Approx. 60 g Approx. 60 g

Note:Weight includes waterproof gasket and panel-mounting bracket.

H7ET

Nomenclature

Front view

Bottom view

Reset Key

Reset the count value. Not operable

under key-protect.

Key-protect Switch

Time-range switch

Setting

(see note) Key-protect

Front panel

OFF

(default setting)

Terminal block

Setting

(see note) H7ET-Njj-jj

Front panel

0.0h to 3999d23.9h

(default setting)

0.0h to 999999.9h

Terminal block

Time range

H7ET-Njj1-jj

0s to 999h59m59s

(default setting)

0.0m to 9999h59.9m

If the switch setting is

changed, press the Reset

Key on the front panel.

JTIME COUNTER

Note: Perform switch setting before mounting to a control panel.

Operation

JOPERATING MODES

H7ET Time Counter

Incrementing Operation

(Up)

Full-scale

(Full-scale

--0.1 (1))

Reset

Timer input

Internal clock

timer value

Timer display values

H7ET H7ET

Dimensions

Unit: mm (inch)

JH7ET-N

Dimensions with Panel-Mounting Bracket

•When mounting, insert the Counter

into the cutout. Insert the adapter

from the back and push in the

Counter while making the gap

between the front panel and the

cutout panel as small as possible.

Use screws to secure the Counter. If

waterproofing is desired, insert the

waterproof gasket.

•When several Counters are installed,

ensure that the ambient temperature

will not exceed specifications.

•The appropriate thickness of the panel

is1to5mm.

Panel Cutout

Separate mounting

Joint mounting

Waterproofing is not possible

for joint mounting

60 min.

22.2 +0.5

45+0.5

60 min.

22.2 +0.5

(48 ¢Units - 2.5) +10

44.8

(1.76)

(1.89)

(0.94)

48.5

(1.91)

(0.87)

(1.38)

(1.46)

44.8

Installation

JTERMINAL ARRANGEMENT

Bottom view: View of the Time Counter rotated horizontally 180°

Backlight Model Non-backlight Model

Reset

input

Timer

input

Backlight

24 VDC

Reset

input

Timer

input

H7ET

onnections

JPNP/NPN UNIVERSAL DC VOLTAGE

INPUT MODEL WITH BACKLIGHT

1. Contact Input (Input by a Relay or Switch Contact)

Relay

Input Reset

Relay

or Switch or Switch

or Open collector of an

NPN transistor

or Open collector of an

NPN transistor

Open collector of a

PNP transistor

Open collector of a

PNP transistor

Input Reset

Backlight

24 VDC Backlight

24 VDC

2. Solid-state Input

Note: 1. Terminals 2 and 4 (input circuit and reset circuit) are

functionally isolated.

2. Select input transistors according to the following:

Dielectric strength of the collector ≧50 V

Leakage current < 1 µA

H7ET H7ET

JNO-VOLTAGE INPUT MODEL

1. Contact Input (Input by a Relay or Switch Contact)

2. Solid-state Input

(Open Collector Input of an NPN Transistor)

Note: Use Relays and Switches that have high contact

reliability because the current flowing from

terminals 1 or 3 is as small as approx. 10 µA.

OMRON’s G3TA-IA/ID is recommended as the

SSR.

Note: 1. Residual voltage in the output section of Proximity

Sensors or Photoelectric Sensors becomes less

than 0.5 V because the current flowing from

terminals 1 or 3 is as small as approx. 10 µA,

allowing easy connection.

2. Select input transistors according to the following:

Dielectric strength of the collector ≧50 V

Leakage current < 1 µA

JAC/DC MULTI-VOLTAGE INPUT MODEL

JPNP/NPN UNIVERSAL DC VOLTAGE

INPUT MODEL WITHOUT BACKLIGHT

1. Contact Input (Input by a Relay or Switch Contact)

2. Solid-state Input

Note: 1. Terminals 2 and 4 (input circuit and reset circuit)

are functionally isolated.

2. Select input transistors according to the following:

Dielectric strength of the collector ≧50 V

Leakage current < 1 µA

Relay

Input Reset

Relay

or Switch or Switch

or Open collector of an

NPN transistor

or Open collector of an

NPN transistor

Open collector of a

PNP transistor

Open collector of a

PNP transistor

Input Reset

Relay

Input Reset

or Switch or Switch

or Open collector of

an NPN transistor

or Switch

Open collector of an

NPN transistor

Open collector of an

NPN transistor

Input Reset

Terminals 2 and 4 are

internally connected.

Relay

Input Reset

Relay

or Switch or Switch

Terminals 2 and 4 are

internally connected.

H7ET

Accessories

(

rder

eparately

)

An H7ET is supplied with a mounting bracket and nut. In addition, the panel-mounting adapters shown here allow the H7ET to be fitted to

existing panel cutouts.

JY92F-77B PANEL-MOUNTING ADAPTER

FOR 24.8 ¢48.8 RECTANGULAR CUTOUT

Must be used with mounting bracket supplied with the Counter

Panel cutout

JY92F-75 PANEL-MOUNTING ADAPTER

FOR 26 ¢45 RECTANGULAR CUTOUT

Must be used with mounting bracket supplied with the Counter

Panel cutout

28.8

(1.13) 24.2 22.2

45.2

48.2

53.8

(2.12)

24.8

(0.98)

48.8

(1.92)

(1.22) 24.2 22.2

45.2

48.2

Two 3.5 dia. mounting holes

(1.02)

(2.83)

Two M3

(2.48)

Y92S-37 Wire-Wrap Terminal (Set of Two Terminals) 44.8

(1.76)

(0.94)

(1.89) 2548.5 17.1

Wire-wrap terminal

(1 ×1 mm)

65.6

(2.58)

The wire-wrap terminals have a cross sectional dimension of

1x1 mm. Select one of three guages of wire from the table at

right. Also listed in the table is the appropriate wiring hardware.

Wire Bit Sleeve Wrapped

state

AWG22 2-A 2-B Normal

AWG24 1-A 1-B Normal

AWG26 1-B 1-B Normal

H7ET H7ET

JY92S-36 REPLACEMENT (LITHIUM)

BATTERY (3 V) 24.5 dia.

7.7

Precautions

WARNING

This product has a built-in lithium battery. Do not short-circuit

the + and -- terminals, charge, disassemble, deform, or expose

the battery to fire. The battery may explode (break), catch fire,

or cause liquid leakage.

Caution

Do not use any battery other than the specified one (Y92S-36).

Using another battery may cause liquid leakage or breakage,

resulting in malfunction or injury.

Caution

If a voltage other than the rated one is applied, internal

elements may be damaged.

Do not use the Counter in the following places:

•Locations subject to direct sunlight.

•Locations subject to corrosive gases.

•Locations subject to dust.

JBEFORE USE

An insulation sheet has been inserted to maintain the quality of

the Totalizer in the event of a long period without use. Be sure to

remove this sheet before attempting to use the product.

Remove the insulation sheet and press the Reset Key on the

front panel of the Counter. (With the H7ET-N,-NV(-H),-NV1(-H),

models, “0” or “0.0” will be displayed after 1 s.)

Reset Key

Insulation Sheet

Switch settings on the Counter must be performed before

mounting it to a control panel.

Do not use the Counter in locations subject to:

SSevere changes in temperature.

SCondensation as the result of high temperatures.

JMOUNTING PRECAUTIONS FOR

PANEL- MOUNTING

Although the operating section is watertight (conforming to

NEMA 4, IP66), a rubber gasket is provided to avoid water

leakage through the gap between the Counter and panel cutout.

Unless this rubber gasket is tightly squeezed on, water may

permeate inside the panel. For this reason, be sure to tighten the

screws for fixing the panel-mounting bracket.

Screw for the Panel-Mounting Bracket

The wider side must

face the panel.

Adapter

Panel

0.5 to 1 mm

Adapter screw section

Tighten the screw until the

distance is within the range

shown above.

H7ET

JRESET INPUT AND COUNT INPUT

The H7ET operates using a Battery. If the H7ET is connected to

a device that has +V and OUT terminals that are connected with

a diode as shown in the circuit diagram, the circuit indicated by

the arrow 1 or 2 will be formed when the device is turned OFF. As

a result, the H7ET may be reset or count by one. Such devices

should not be connected to the H7ER.

Count input

or reset input

circuit

Internal

If an excessive voltage is applied to the count or reset input

terminals, the internal elements may be damaged.

Ensure that the following voltages are not exceeded:

SPNP/NPN universal voltage input model: 30 VDC

SAC/DC voltage input model:

At count input: 240 VAC (peak voltage: 338V)

240 VDC

At reset input: 3 VDC (no-voltage input)

No-voltage input model: 3 VDC

Do not remove the outer case when voltage is being applied to

the power supply terminals or to the input terminals.

The input for the H7Ej-NFV-jis a high-impedance circuit so

influence from an induced voltage may result in malfunction.

When the input signal wiring is longer than 10 m (stray

capacitance of 120 pF/m, at room temperature), a CR filter or a

bleeder resistor should be connected.

JCOUNT INPUT OR RESET INPUT TO

MORE THAN ONE H7ET COUNTER AT

ATIME

PNP/NPN Universal DC Voltage Input

Note:H (Reset ON) level must be 4.5 V minimum.

H= 4.7 (kΩ)/N + V

4.7 (kΩ)/N + R

No-voltage Input

Note: 1. The leakage current of the transistor used for input

must be less than 1 µA.

2. The forward voltage of the diode must be as low as

possible (i.e., 0.1 V maximum with an IFof 20 µA) so

the voltage between terminals 3 and 4 will be 0.5 V

when the reset input is ON.

JINPUT AND POWER SUPPLY

Do not apply voltage on the Counter if the Counter is a model

that operates with no-voltage input, or the internal circuit of the

Counter may be damaged.

Do not connect any single input signal in parallel to Counter

models operating with no-voltage input and those operating with

voltage input, to avoid malfunction.

When connecting a sensor to the Counter that operates with

no-voltage input, make sure that the sensor has open collector

output.

Sensor

The operation of the Counter may be affected if the line voltage

of the power supply exceeds 500 pF (about 10 m, with parallel

wires of 2 x 2 mm). Keep all wires as short as possible. When

using shielded wire, stray capacitance may occur.

When connecting an open collector input from a transistor to the

Counter that operates with no-voltage input, make sure that the

leakage current of the transistor is 5 µA maximum.

When connecting count input from an SSR to the Counter that

operates with AC/DC voltage input, use OMRON’s G3TA-IA or

G3TA-ID SSR. Otherwise, make sure that the leakage current of

the SSR is 0.1 mA maximum or connect a bleeder resistor in

parallel to the input circuit of the Counter.

Leakage current:

0.1 mA max.

*Bleeder resistor

The voltage between terminals 1 and 2 must be

1.5 V maximum when the SSR is OFF.

JBACKLIGHT POWER SUPPLY

To reduce variation in the brightness of the backlight when using

more than one H7ET with a backlight, use the same power

supply for all the backlights.

When connecting the DC power supply for the backlights, be

sure to connect the polarities correctly.

JINPUT VERIFICATION WITH THE H7ET

TIME COUNTER

The decimal point of the LCD blinks every other second while an

input signal is being applied. If the decimal point is not blinking, the

input signal is not being received correctly. Check the input signal

connections.

H7ET H7ET

JUNIT LABEL FOR TIME COUNTER AND

TACHOMETER

A unit label has been packed with the Counter. Use in

accordance with the application.

JBATTERY REPLACEMENT

Remove the wiring when replacing the Battery. Do not come in

contact with any item to which high voltage is being applied.

Doing so may result in electric shock.

Before changing the Battery, be sure that you are not carrying

any static electric charge.

Procedure for replacing the Battery (refer to the diagrams below):

1. Using the tool, pry open the lift-tab on the case. (1)

2. Pull the body out of its outer case. (2)

3. Lift the Battery up by the edge and remove it. (3)

When removing the Battery, do not come in contact with the

display area or any internal parts.

4. Wipe the back of the new Battery before inserting it.

5. Ensure that the + and -- terminals are correctly oriented.

6. After replacing the Battery, re-insert the body into its case. (4)

Check that the case is securely held in by the lift-tab.

7. Press the Reset Key before use (not necessary for

H7ET-N,-NV,-NV1). (5)

When the internal Battery nears expiration, the display may

flicker.

Tool

(2)

(1)

(3)

(4)

(5)

JEN/IEC STANDARDS

The counter input, reset input, and backlight power supply

terminals of the no-voltage input or PNP/NPN universal DC

voltage input models (H7Ej-N,-N1, H7Ej-NV(-H),-NV1(-H)) are

not isolated.

A SELV power supply conforming to Appendix H of IEC61010-1

should be used for the counter input, reset input and backlight

power supply terminals. A SELV power supply is a power supply

for which the input and output have double or reinforced

insulation, and for which the output voltage is 30 Vrems with 42.4

V peak or 60 VDC max. (Only the H7Ej-NVj-H has a

backlight.)

The terminals for counter input and reset input for AC/DC

multi-voltage input models have basic insulation.

Connect the reset input terminals to a device that does not have

exposed current-carrying parts and has basic insulation for

240 VAC.

H7ET

C at . N o. G C T MC N 1 3/ 02 S pec if ic at ions s ubjec t t o c hange w it hout not ic e. P r int ed in U . S . A .

OMRON ELECTRONICS LLC

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 5V8

416-286-6465

OMRON ON--LINE

Global -- http://www.omron.com

USA -- http://www.omron.com/oei

Canada -- http://www.omron.com/oci