Omron H7CZ-L8, H7CZ-L8D1, H7CZ User Manual

New Product

Digital Counter

H7CZ

Easy to Use and Easy to Read.

Basic Features

• Character height of 10 mm for better readability.

• Operation is simplified by the Up Key for each digit.

Safety and Reliability

• Power supply circuit and input circuits are isolated inside the
Counter.

• Set value limit function prevents unexpected operation of output
devices caused by setting mistakes.

• Output counter function helps in managing the service life of the
Counter or the load.

Other Features

• Waterproof, dust-proof structure (UL508 Type 4X and IP66).

• Key protection.

Refer to Safety Precautions on page 17.

For the most recent information on models that have been certified for
safety standards, refer to your OMRON website.

Features

Basic Features

Better Readability

Character Height of 10 mm with a Wide Viewing Angle.

Easy to read from the top,
bottom, and sides.

(actual size)

10 mm

The Easiest Operation

Operation is simplified by the Up Key for
each digit.

Safety and Reliability

Isolated Power Supply and Input Circuits

Power supply circuit and input circuits are isolated inside the Counter.
Previous non-isolated counters had wiring restrictions and could be
damaged if wired incorrectly. The H7CZ removes these worries.

Clear

Confirmation

Set Value Limit

You can set an upper limit for the set value to prevent unexpected
operation of output devices caused by setting mistakes.

Setting the upper limit of the set
value enables worry-free operation.

For 1,000 pieces

No overflow

Output Counter

The output counter counts the number of times the output turns ON
(alarms can be displayed and the count can be monitored in
increments of 1,000 operations). This counter is useful in managing
the service life of the Counter or the load.

Other Features

Waterproof, Dust-proof Structure (UL508 Type
4X and IP66)

Worry-free application is possible in locations subject to water.

Note: When the Y92S-29 Waterproof Packing is used.

Key Protection

Select from any of seven protection patterns. Use the best one for the
application.

1

H7CZ

Model Number Structure

Model Number Legend

H7CZ-L@@

12

1. External connections 2. Supply voltage

Symbol Meaning

8 8-pin socket

Symbol Meaning

None 100 to 240 VAC at 50/60 Hz

D1 12 to 24 VDC/24 VAC at 50/60 Hz

Ordering Information

List of Models

Type Configuration

H7CZ

Note: The functions that are provided depend on the model. Check detailed specifications before ordering.

• 1-stage preset
counter

External

connections

8-pin socket 1-stage 6 digits Contact output (SPDT)

Settings

Accessories (Order Separately)

Soft Cover

Model Page

Y92A-48F1 9

Display

digits

Outputs

Power supply

voltage

100 to 240 VAC H7CZ-L8

12 to 24 VDC/24 VAC H7CZ-L8D1

Model

Hard Cover

Model Page

Y92A-48 9

Flush Mounting Adapter

Model Page

Y92F-30 9

Waterproof Packing

Model Page

Y92S-29 9

Connection Sockets

Model Type Remarks Page

P2CF-08 Front-connecting Socket ---

P2CF-08-E Front-connecting Socket (Finger-safe Type)

P3G-08 Back-connecting Sockets

Round crimp terminals cannot be used on
Finger-safe Sockets.
Use forked crimp terminals.

A Y92A-48G Terminal Cover can be used with
the Socket to create a finger-safe construction.

Terminal Covers for P3G-08 Back-connecting Socket

Model Page

Y92A-48G 10

10

2

H7CZ

H7CZ Multifunction Preset Counter

Specifications

Ratings

Item Models H7CZ-L8 H7CZ-L8D1

Configuration 1-stage preset counter

Power supply voltage

Ratings

Mounting method Flush mounting or surface mounting

External connections 8-pin socket

Degree of protection IEC IP66, UL508 Type 4X (indoors) for panel surface only and only when Y92S-29 Waterproof Packing is used.

Input signals Count, Reset

Counter

Prescaling function Yes (0.001 to 99.999)

Decimal point adjustment Yes (rightmost 3 digits)

Sensor waiting time 290 ms max. (Control output is turned OFF and no input is accepted during sensor waiting time.)

Input method

Control output

Display

Digits

Memory backup EEPROM (overwrites: 100,000 times min.) that can store data for 10 years min.

Operating temperature range −10 to 55°C (−10 to 50°C if Counters are mounted side by side) (with no icing or condensation)

Storage temperature range −25 to 70°C (with no icing or condensation)

Operating humidity range 25% to 85%

Front panel color Light gray (5Y7/1)

*1. Do not use the output from an inverter as the power supply.The ripple must be 20% maximum for DC power.
*2. The display is lit only when the power is ON. Nothing is displayed when power is OFF.

Operating voltage fluctuation
range

Power consumption Approx. 9.4 VA at 100 to 240 VAC, Approx. 7.2 VA/4.7 W at 24 VAC/12 to 24 VDC

Maximum counting speed 30 Hz or 10 kHz (switchable) (ON/OFF ratio 1:1)

Input mode Increment, Decrement

Output mode N, F, C, R, K-1, P, Q, and A.

One-shot output time 0.01 to 99.99 s

Reset system

*2

*1

100 to 240 VAC, 50/60 Hz 24 VAC, 50/60 Hz or 12 to 24 VDC

85% to 110% of rated supply voltage (12 to 24 VDC: 90% to 110%)

External (minimum reset signal width: 1 ms or 20 ms, selectable), Manual, and Automatic reset (internal according
to C, R, P, and Q mode operation)

No-voltage inputs:
ON impedance: 1 kΩ max. (Leakage current: 12 mA at 0 Ω)
ON residual voltage: 3 V max.
OFF impedance: 100 kΩ min.

3 A at 250 VAC/30 VDC, resistive load (cosφ=1), Minimum applied load: 10 mA at 5 VDC (failure level: P, reference
value)

LCD
Character height
Count value: 10 mm
Set value: 6 mm

6 digits

−99999 to 999999
(−5 digits to +6 digits)

3

H7CZ

* Refer to the Life-test Curve.

Applicable Standards

*1. The following safety standards apply to H7CZ.

cUL (Listing): Applicable when an OMRON P2CF(-E) Socket is used.
cUR (Recognition): Applicable when any other socket is used.

*2. Industrial electromagnetic environment (EN/IEC 61326-1 Table 2)

Insulation resistance

100 MΩ min. (at 500 VDC) between current-carrying terminals and exposed non­current-carrying metal parts, and between non-continuous contacts

Dielectric strength

2,000 VAC, 50/60 Hz for 1 min between current-carrying metal parts and non-current­carrying metal parts
2,000 VAC, 50/60 Hz for 1 min between power supply and input circuit (1,000 VAC for
24 VAC/12 to 24 VDC)
1,000 VAC, 50/60 Hz for 1 min between control output, power supply, and input circuit
(2,000 VAC)
1,000 VAC, 50/60 Hz for 1 min between non-continuous contacts

Impulse withstand voltage

3.0 kV between power terminals (1.0 kV for models with 24 VAC/12 to 24 VDC)

4.5 kV between current-carrying terminals and exposed non-current-carrying metal
parts (1.5 kV for models with 24 VAC/12 to 24 VDC)

Noise immunity

±1.5 kV between power terminals
±600 V between input terminals
Square-wave noise by noise simulator (pulse width: 100 ns/1 μs, 1-ns rise)

Static immunity

Malfunction: 8 kV
Destruction: 15 kV

Vibration
resistance

Destruction 10 to 55 Hz with 0.75-mm single amplitude each in three directions for 2 h each

Malfunction 10 to 55 Hz with 0.35-mm single amplitude each in three directions for 10 min each

Shock re­sistance

Destruction 300 m/s2 each in three directions

Malfunction 100 m/s2 each in three directions

Life expectancy

Mechanical: 10,000,000 operations min.
Electrical: 100,000 operations min. (3 A at 250 VAC, resistive load, ambient
temperature condition: 23°C)

*

Weight Approx. 100 g (Counter only)

Approved
safety
standards

cULus (or cURus): UL508/CSA C22.2 No. 14

*1

EN 61010-1 (IEC 61010-1): Pollution degree 2/overvoltage category II
B300 PILOT DUTY
1/4 HP 120 VAC, 1/3 HP, 240 VAC, 3 A resistive load
VDE0106/P100 (finger protection)

EMC

(EMI) EN61326-1

*2

Emission Enclosure: EN 55011 Group 1 class A
Emission AC mains: EN 55011 Group 1 class A
(EMS) EN61326-1

*2

Immunity ESD: EN 61000-4-2: 4 kV contact discharge;

8 kV air discharge

Immunity RF-interference: EN 61000-4-3: 10 V/m (Amplitude-modulated, 80 MHz to 1 GHz);

10 V/m (Pulse-modulated, 900 MHz ±5 MHz)
Immunity Conducted Disturbance: EN 61000-4-6: 10 V (0.15 to 80 MHz)
Immunity Burst: EN 61000-4-4: 2 kV power-line;

1 kV I/O signal-line
Immunity Surge: EN 61000-4-5: 1 kV line to lines (power and output lines);

2 kV line to ground (power and output lines)
Immunity Voltage Dip/Interruption: EN 61000-4-11: 0.5 cycle, 100% (rated voltage)

Life-test Curve (Reference
Values)

Resistive load

Inductive load

A current of 0.15 A max. can be switched at
125 VDC (cosφ=1) and current of 0.1 A max. can
be switched if L/R=7 ms. In both cases, a life of
100,000 operations can be expected.

1,000

700

500

300

100

70

50

Load current (A)

01 2 34

30 VDC (cosφ=1)

250 VAC (cosφ=1)

No. of operations (

×

10

3

)

Characteristics

)

1,000

3

10

×

700

500

I/O Functions

Using as a Counter

Inputs

Outputs OUT Outputs signals according to the specified output mode when a set value is reached.

*1. For information on operation of I/O functions, refer to page 14 and page 15.
*2. In elapsed time mode, the present value returns to 0; in remaining time mode, the present value returns to the set value.

• The following table shows the delay from when the reset signal is input until the output is turned OFF. (Reference values)

Minimum reset signal width Output delay time

4

*1

Count

Reset

• Reads counting signals.

• Increment and decrement inputs accepted.

• Resets present value and outputs.

• Counting cannot be performed during reset input.

• Reset indicator is lit while reset input is ON.

1 ms 0.8 to 1.2 ms

20 ms 15 to 25 ms

*2

300

No. of operations (

100

70

50

01 2 34

30 VDC (L/R=7 ms)

250 VAC (cosφ=1)

Load current (A)

Connections

H7CZ

Block Diagram

Output circuit

(Basic insulation)

Input circuits

(Basic insulation)

Internal

control circuit

Power supply

circuit

(Basic insulation)

Display circuit

Key switch

circuit

Terminal Arrangement

Confirm that the power supply meets specifications before use.

H7CZ-L8/L8D1

1-stage Contact Output

Internal circuit

Count

Reset

Contact Output

0V

(+) (−)

Input Circuits

Count and Reset Input

No-voltage Inputs (NPN Inputs)

+14V

1 kΩ

IN

Internal
circuit

Input Connections

The inputs of the H7CZ-L8@ are no-voltage (short-circuit or open) inputs.

No-voltage Inputs (NPN Inputs)

Open Collector Voltage Output Contact Input DC Two-wire Sensor

PLC or
sensor

Reset input

Count input

0 V for inputs

134

Note: Operates with transistor ON.

No-voltage Input Signal Levels

Short-circuit level (transistor ON)

• Residual voltage: 3 V max.

No-contact input

Contact input Use contacts which can adequately switch 5 mA at 10 V.

Note: The DC voltage must be 30 VDC max.

• Impedance when ON: 1 kΩ max.

(The leakage current is approx. 12 mA when the impedance is 0 Ω.)

Open level (transistor OFF)

• Impedance when OFF: 100 kΩ min.

Sensor

Reset input

Count input

0 V for inputs

134

Note: Operates with transistor ON.

Reset input

Count input

0 V for inputs

134

Note: Operates with relay ON.

Reset input

0 V for inputs

134

Note: Operates with transistor ON.

Applicable Two-wire Sensor

• Leakage current: 1.5 mA max.

• Switching capacity: 5 mA min.

• Residual voltage: 3 VDC max.

• Operating voltage: 10 VDC

Count input

5

H7CZ

Nomenclature

Display Section

1. Key Protect Indicator

2. Control Output Indicator

3. Reset Indicator

4. Present Value (Main Display)

(Character height: 10 mm)

5. Set value (Sub-display)

(Character height: 6 mm)

Character Size
for Main Display

10 mm

Character Size
for Sub-display

6 mm

4

1

2
3

6

7

1st digit 6th digit

5

8

6. Mode Key

(Changes modes and setting items.)

7. Reset Key

8. Up Keys to

9. Key-protect Switch

9

(Default setting) OFF

Operation Keys

1 6

Switches

ON

(Disable)

(Enable)

Dimensions (Unit: mm)

Counters

H7CZ-L8/-L8D1 (Flush Mounting/Surface Mounting Models)

48 × 48

6

63.7

14.2

44.8×44.8

Panel Cutouts

Panel cutouts are as shown below. (according
to DIN43700).

60 min.

+

0.6

45

0

+

0.6

45

0

15 min.

60 min.

Dimensions with Flush Mounting Adapter

H7CZ-L8/-L8D1 (Adapter and Waterproof Packing Ordered Separately)

Waterproof Packing

58

48

(51)

Y92F-30 (order separately)

Pane lY92S-29 (order separately)

Flush Mounting Adapter

84.87.5

Dimensions with Front Connecting Socket

*

92.3

H7CZ

-L8@

90

P3G-08 (order
separately)
Back-connecting
Socket

Note: 1. The mounting panel thickness

should be 1 to 5 mm.

2. To allow easier operation, it is
recommended that Adapters be
mounted so that the gap between
sides with hooks is at least 15 mm
(i.e., with the panel cutouts
separated by at least 60 mm).

3. It is possible to horizontally mount
Timers side by side. Attach the
Flush Mounting Adapters so that
the surfaces without hooks are on
the sides of the Timers. If they are
mounted side-by-side, water­resistance will be lost.

n Units mounted

side by side

A

A=(48n−2.5)

With Y92A-48F1 attached.
A={48n−2.5+(n−1)×4}
With Y92A-48 attached.

A=(51n−5.5)

+1

−0

+1

−0

+1

−0

P2CF-08(-E) (order separately)
Front Connecting Socket

* These dimensions depend on the kind of DIN Track. (Reference value)

6