background image

Step1

Step2

Step1

1) H5CZ models with a 24-VAC/12 to 24-VDC power supply use a transformer-free power supply method in 

which the power supply terminals are not isolated from the signal input terminals. If a non-isolating DC 
power supply is used, unwanted current paths may occasionally burn or destroy internal components 
depending on the wiring. Always check the wiring sufficiently before use. 

2) An inrush current of approx. 10 A will flow for a short time when the power supply is turned ON. If the 

capacity of the power supply is not sufficient, the Timer may not start. Be sure to use a power supply with 
sufficient capacity. 

3) Maintain voltage fluctuations in the power supply within the specified operating voltage range.

4) To allow for the startup time of peripheral devices (sensors, etc.), the Timer starts timing operation between 

200 to 250 ms after power is turned ON. For this reason, in operations where timing starts from power ON, 
the time display will actually start from 249 ms. If the set value is 249 ms or less, the time until output turns 
ON will be a fixed value between 200 and 250. The present value display will start from 250 ms. (Normal 
operation is possible for set values of 250 ms or more.) In applications where a set value of 249 ms or less 
is required, use start timing with signal input.

5) The input signal will not be accepted after 5 to 505 ms has elapsed from when the power supply is turned 

OFF. 

6) Inrush current generated by turning ON or OFF the power supply may deteriorate contacts on the power 

supply circuit. Turn ON or OFF to a device with the rated current of more than 10 A.

7) Make sure that all settings are appropriate for the application. Unexpected operation resulting in property 

damage or accidents may occur if the settings are not appropriate. 

8) Do not leave the Timer for long periods of time at a high temperature with output current in the ON state. 

Doing so may result in the premature deterioration of internal components (e.g., electrolytic capacitors).

9) EEPROM is used as memory when the power is interrupted. The write life of the EEPROM is 100,000 

writes. The EEPROM is written when the power is turned OFF or when switching from function setting 
,mode or Timer/Twin Timer selection mode to run mode. 

10) Dispose of the product according to local ordinances as they apply.

Display

Parameter name

Set value

Comments

timr

---

*1

timm

---

outm

otim

iflt

20ms

,

1ms

 *2 

otmd

1c1c

,

 2c 

*2

sl-h
kypt

on-a

on-c

on1a

0

 to 

9999

×

 1,000

---

---

×

 1,000

on2a

0

 to 

9999

×

 1,000

on1c

on2c

---

---

---

oftr 

---

*1

ontr 

---

*1

timm 

up

,

 down

 *2

---

totm 

toff

,

 ton

,

 tof1

,

 ton1

*2

iflt 

20ms

,

1ms

 *2 

otmd 

1c1c

,

 2c

 *2

sl1h 

---

Mounting and Panel-cutout Dimensions Diagram

Standard panel cutout is shown in the 
following diagram (conforms to DIN 
43700). A space of 15 mm or greater 
(a panel cut-out distance of 60 mm or 
greater) is recommended  towards 
the Adapter's  hook side to enable 
easier mounting work.

1. The thickness of a mounting panel 

should be 1 to 5 mm.

2. It is possible to mount Timers side by 

side by mounting Adapters. (But only 
towards the non-hook side.)

Application as a Timer

First, switch to a Twin Timer

Display in RUN mode.

RUN mode.

Power ON

Timer

Twin Timer

Press for 1 s.

Application as a Twin Timer

Change to "Twin Timer" 
using the 

U

 Key.

Timer/Twin Timer 
selection mode

Press for 1 s.

Present value
ON Set value

Present value
OFF Set value

Wire properly after checking the specifications of the power supply 
voltage.

Key-protect Switch Settings

Self-diagnostic Functions

OFF (disable)

ON (enable)

* Changing mode to Timer/Twin Timer selection mode or function setting mode.

When the key-protect switch is ON, 
individual key operations can be disabled 
to prevent setting errors according to the 
key protect levels (KP-1 to KP-7) shown 
in the following table.
* Key protect levels are set in function 

setting mode.

0.01 s to 99.99 s (default setting)
0.1 s to 999.9 s
1 s to 9999 s
0 min 01 s to 99 min 59 s

0.001 s to 9.999 s

0.1 h to 999.9 h
1 h to 9999 h

0 h 01 min to 99 h 59 min

0.1 min to 999.9 min
1 min to 9999 min

The characters displayed in reverse video are the default settings.

OFF time range
ON time range
UP/DOWN mode
Twin Timer 
Output mode

Input signal width

Instantaneous/time-limit

Displayed only for H5CZ-L8E

@

.

Present value

ON duty

Display in RUN mode. (Z mode)

Present value

Cycle time

Display

Parameter name

Set value

Comments

Displayed only for models other than H5CZ-L8E

@

.

OMRON EUROPE B.V.

Wegalaan 67-69-2132 JD Hoofddorp, The Netherlands
Tel: (31)2356-81-300/Fax: (31)2356-81-388

OMRON ELECTRONICS LLC (U.S.A.) 

Tel: (1) 847-843-7900/Fax: (1) 847-843-7787

OMRON ASIA PACIFIC PTE. LTD. (SINGAPORE) 

Tel: (65) 6835-3011/Fax: (65) 6835-2711

OMRON (CHINA) CO., LTD.

Tel: (86) 21-5037-2222/Fax: (86) 21-5037-2200

OFF

Note: Refer to the datasheet (Cat. No. L111) for detailed parameter settings. 

Note: Refer to the datasheet (Cat. No. L111) for detailed parameter settings. 

Parameters are set with the operation keys on the front panel.

Only modes 

toff

 and 

ton

 can be 

selected for H5CZ-L8E

@

.

Display in RUN mode.
(except for Z mode)

Present value

Set value

Indicates a potentially hazardous situation which, if not 
avoided, is likely to result in minor or moderate injury or 
in property damage.

Do not allow pieces of metal, wire clippings, or fine metallic 
shavings or fillings from installation to enter the product. Doing so 
may occasionally result in electric shock, fire, or malfunction. 

Minor injury due to explosion may occasionally occur. Do not use 
the Timer where subject to flammable or explosive gas.

Fire may occasionally occur. Tighten the terminal screws to the 
rated torque 
P2CF socket terminals: 4.4 lb-in (0.5 N

m)

Minor injury due to electric shock may occasionally occur. Do not 
touch any of the terminals while power is being supplied. Be sure 
to mount the terminal cover after wiring.

The life expectancy of the output relay varies considerably 
according to its usage. Use the output relay within its rated load 
and electrical life expectancy. If the output relay is used beyond its 
life expectancy, its contacts may become fused or there may be a 
risk of fire. Also, be sure that the load current does not exceed the 
rated load current and when using a heater, be sure to use a 
thermal switch in the load circuit.

Minor electric shock, fire, or malfunction may occasionally occur. 
Do not disassemble, modify, or repair the Timer or touch internal 
components.

1)  When mounting the Timer to a panel, tighten the two mounting screws alternately, a little at a time, so as 

to keep them at an equal tightness. If the panel screws are tightened unequally, water may enter the 
panel.

2)  Store the Timer at the specified temperature. If the Timer has been stored at a temperature of less than 

10

°

C, allow the Timer to stand at room temperature for at least 3 hours before use.

3)  Mounting the Timer side-by-side may reduce the life expectancies of internal components.
4)  Use the Timer within the specified ranges for the ambient operating temperature and humidity.
5)  Do not use in the following locations:

 Locations subject to sudden or extreme changes in temperature.

 Locations where high humidity may result in condensation.

 Locations with excessive vibration or shock. 

 Locations subject to water. 

 Locations subject to oil. 

6)  Do not use this Timer in dusty environments, in locations where corrosive gasses are present, or in locations 

subject to direct sunlight.

7)  Install the Timer well away from any sources of static electricity, such as pipes transporting molding 

materials, powders, or liquids.

8)  Internal elements may be destroyed if a voltage outside the rated voltage range is applied.
9)  Wire terminal polarity correctly.

10)  Separate the Timer from sources of noise, such as devices with input signals from power lines carrying 

noise, and wiring for I/O signals.

11)  Do not connect more than two crimp terminals to the same terminal.
12)  Up to two wires of the same size and type can be inserted into a single terminals.
13)  Use the specified wires for wiring. Applicable Wires: AWG 18 to AWG 22, solid or twisted, copper
14)  Install a switch or circuit breaker that allows the operator to immediately turn OFF the power, and label it 

to clearly indicate its function.

15)  Approximately 14 V is output from the input terminals. Use a sensor that contains a diode. 
16)  Use a switch, relay, or other contact so that the rated power supply voltage will be reached within 0.1 

seconds. If the power supply voltage is not reached quickly enough, the Timer may malfunction or 
outputs may be unstable.

17)  Use a switch, relay, or other contact to turn the power supply OFF instantaneously. Outputs may 

malfunction and memory errors may occur if the power supply voltage is decreased gradually.

18)  When changing the set value during a timing operation, the output will turn ON if the set value is changed 

as follows because of the use of a constant read-in system:

       Elapsed time (UP) mode: Present value 

 Set value 

       Remaining time (DOWN) mode: Elapsed time 

 Set value (The present value is set to 0.)

       When in the remaining time mode, the amount the set value is changed is added to or subtracted from the 

present value. When the set value is 0, the output turns ON the moment the signal is input. The reset 
operation turns OFF the output.

19)  Do not use organic solvents (such as paint thinners or benzine), strong alkali, or strong acids. They will 

damage the external finish.

20)  Confirm that indications are working normally, including the LCD. The indicator LCD and resin parts may 

deteriorate more quickly depending on the application environment, preventing normal indications. 
Periodic inspection and replacement are required. 

21)  The waterproof packing may deteriorate, shrink, or harden depending on the application environment. 

Periodic inspection and replacement are required. 

58

@

45

+0.6

0

A

A=(48n

2.5)

+1

0

Power supply voltage 

100 to 240 VAC, 50/60 Hz (H5CZ-L8/-L8E)

 

12 to 24 VDC/24 VAC, 50/60 Hz (H5CZ-L8D/-L8ED)

Allowable voltage fluctuation range  85% to 110% of rated supply voltage (12 to 24 VDC: 90% to 110%)
Power consumption 

Approx. 6.2 VA at 100 to 240 VAC,

 

Approx. 5.1 VA/2.4 W at 24 VAC/12 to 24 VDC

Operating temperature range 

10 to 55

°

C (

10 to 50

°

C if Timers 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%

Altitude 

2,000 m max.

Recommended fuse 

T2A, 250 VAC, time-lag, low-breaking capacity

Weight 

Approx. 105 g (main unit only)

Installation environment 

Over-voltage category III, pollution degree 2 (IEC 61812-1)

Input method
    No-voltage Input  

ON impedance: 1 k

Ω

 max. (Leakage current: 12 mA when 0 

Ω

)

 

ON residual voltage: 3 V max.

 OFF 

impedance: 

100 

k

Ω

 min.

Control output
    Contact Output

250 V AC, 5A (resistive load)
30 V DC, 5A (resistive load)

Electrical life of relay 

100,000 operations (at an ambient temperature of 23

°

C)

Mechanical life of relay 

10,000,000 operations (at an ambient temperature of 23

°

C)

Degree of protection 

IEC IP66, UL508 Type 4X*

Set the parameters using the 

UD

 Keys.

MODE

MODE

Set the parameters using the

NUD

 Keys.

---

.

-

s

----

  s

--

:

--

ms

---

.

-

m

----

  m

--

:

--

hm

---

.

-

h

----

  h

-

.

---

s

*1 The set values for the time range are as follows: 

MODE

MODE

*1 The set values for the time range are the same as for Timer operation. 
*2 After reaching the last set value, the 

UD

 Keys will return to the first set value. 

MODE

MODE

MODE +

MODE +

tim

twn

func

tim

U

1

U

1

Key protect indicator

Level

KP-1 (default setting)

KP-2
KP-3
KP-4
KP-5
KP-6
KP-7

Mode change*

Invalid
Invalid
Invalid
Invalid
Invalid
Invalid
Invalid

Display switch in the run mode

Valid
Valid
Valid
Valid

Invalid
Invalid
Invalid

Reset Key

Valid

Invalid

Valid

Invalid
Invalid

Valid

Invalid

Up/Down Key

Valid
Valid

Invalid
Invalid
Invalid

Valid
Valid

4

3

2

1

8

7

6

5

0V

4

3

2

1

8

7

6

5

H5CZ-L8/-L8D

H5CZ-L8E/-L8ED

up

,

down

 *2

hold

/

0.01

 to 

99.99

0

 to 

9999

1

 to 

9999

1

 to 

9999

H5CZ

Digital Timer

©All Rights Reserved

OMRON Corporation

INSTRUCTION MANUAL

1148242-7A

EN

CAUTION

Suitability for Use

Keys to Warning Symbols

SAFETY PRECAUTIONS

CAUTION

Precautions for Safe Use

Precautions for Correct Use

60 or greater

15 or greater

Panel-cutout Dimensions Diagram

(Units: mm)

n Units mounted 

side-by-side

3. If the Timers are mounted side by side, 

water resistance will be lost.

• Digital Timer
• Instruction manual (this document)

Package Contents

Ratings (Specifications)

Conformance to EN/IEC Standards

*

 Individual mounting: Degree of protection on the front panel of the Timer conforms to UL 508 

Type 4X when all of the following conditions are satisfied:

The Y92S-29 waterproof packing and Y92F-30 mounting adapter are used with the Timer. 
Use only these parts for replacement.
The Timer is mounted on the flat surface of an enclosure that is rated and marked "Type 
4X for Indoor Use Only."

(setting when 
purchased.)

 Change from RUN Mode to Function Setting Mode.

The characters displayed in reverse video are the default settings.

MODE

MODE

Power ON 

RUN mode

Function

setting mode

3 s min.

3 s min.

Function setting mode

Time range
UP/DOWN mode

Output modes

Output time

Input signal width
Instantaneous/
time-limit

Only modes 

a-2

,

b

,

e

 and 

z

 can be 

selected for H5CZ-L8E

@

.

Display

Set value

(If the output time is set to 0.00, 

hold

is displayed.)
Displayed for modes 

a

,

a-1

,

a-2

,

a-3

,

b

,

b-1

 and 

5

 only. Unit: second

Displayed only for the H5CZ-L8E

@

.

• Models Other Than H5CZ-L8E

@

• H5CZ-L8E

@

Set value upper limit

Key protect level

Output ON count 
alarm set value

The monitor value is only displayed.   
It cannot be set. 

×

 1,000

Instantaneous output 1 (OUT1) 
ON count alarm set value

Time-limit

output 2 (OUT2) ON 

count alarm set value

Instantaneous output 1 (OUT1) 
ON count monitor value

Time-limit

 output 2 (OUT2) ON 

count monitor value

Output ON count 
monitor value

 Change from RUN Mode to Function Setting Mode.

Power ON 

RUN mode

Function

setting mode

3 s min.

3 s min.

Function setting mode

Set value upper limit 1

OMRON shall not be responsible for conformity with any standards, codes, or 
regulations that apply to the combination of the products in the customer's 
application or use of the product.
Take all necessary steps to determine the suitability of the product for the systems, 
machines, and equipment with which it will be used. Know and observe all 
prohibitions of use applicable to this product. 
NEVER USE THE PRODUCTS FOR AN APPLICATION INVOLVING SERIOUS 
RISK TO LIFE OR PROPERTY WITHOUT ENSURING THAT THE SYSTEM AS A 
WHOLE HAS BEEN DESIGNED TO ADDRESS THE RISKS, AND THAT THE 
OMRON PRODUCT IS PROPERLY RATED AND INSTALLED FOR THE 
INTENDED USE WITHIN THE OVERALL EQUIPMENT OR SYSTEM. 
See also Product catalog for Warranty and Limitation of Liability.

48

a

,

 a-1

,

 a-2

,

 a-3

,

 b

,

b-1

,

 d

,

e

,

 f

,

 z

,

 s

 *2

kp-1

,

 kp-2

,

 kp-3

,

 kp-4

,

kp-5

,

 kp-6

,

 kp-7

 *2

Time-limit contact 
output OUT2

Instantaneous
contact output 
OUT1

Terminals 1 and 2 of the H5CZ-L8D are 
connected internally.

(

+

)

(

)

Contact output

Internal circuit

Signal

Reset

(

+

)

(

)

Internal circuit

Internal circuit

Display Section

1. Key Protect Indicator
2. Control Output Indicator
3. Reset Indicator
4. Present Value Display (Main Display)

    (Character height: 10 mm)

5. Time Unit Indicators

 (If the time range 

is 0 min, 0.0 min, 0 h, 0.0 h, or 0 h 0 
min, these indicators flash to indicate 
timing operation.)

6. Set Value Display (Sub-display) 

(Character height: 6 mm)

7. Set Value 1, 2 Indicator

Operation Key

 8.  Mode Key

 (Changes modes and setting items)

  9.  Reset Key 

(Resets present value and output)

10.  Up Keys 1 to 4
11.  Down Keys 1 to 4

The following displays will appear if an error occurs. 

Main 

display

Sub-display

Error

Output

status

Correction method

Set value after 

reset

e1

Not lit

CPU error

No change

e2

Not lit

Memory error (RAM)

No change

e2

sum

Memory error (EEPROM)*1 

OFF

Factory setting

e3

*2

No change

Output ON count alarm 
set value exceeded

No

change

Either press the Reset Key 
or reset the power  supply.

Reset the power supply. 

The monitor value is only displayed.    
It cannot be set. 

×

 1,000

The monitor value is only displayed.    
It cannot be set. 

×

 1,000

kypt 

---

on-a 

0

 to 

9999

×

 1,000

on-c 

---

on1a 

0

 to 

9999

×

 1,000

on2a 

0

 to 

9999

×

 1,000

on1c 

---

on2c 

---

The monitor value is only displayed.    
It cannot be set. 

×

 1,000

The monitor value is only displayed.    
It cannot be set. 

×

 1,000

• Models other than H5CZ-L8E

@

• H5CZ-L8E

@

Key protect level

Output ON count 
alarm set value

Output ON count 
monitor value

Instantaneous output 1 (OUT1) 
ON count alarm set value

Time-limit output 2 (OUT2) ON 
count alarm set value
Instantaneous output 1 (OUT1) 
ON count monitor value

Time-limit output 2 (OUT2) ON 
count monitor value

kp-1

,

 kp-2

,

 kp-3

,

 kp-4

,

kp-5

,

 kp-6

,

 kp-7

 *2

The monitor value is only displayed.   
It cannot be set. 

×

 1,000

sl2h 

---

1

 to 

9999

Set value upper limit 2

For details, refer to the latest datasheet (Cat. No. L111).

Thank you for purchasing the OMRON Product. 
To ensure the safe application of the Product, read this 
manual carefully before using the Product and always keep 
it close at hand when the Product is in use. 

*2 After reaching the last set value, the 

UD

 Keys 

will return to the first set value.

No change

Reset Key

Reset Key

*1 This includes times when the life of the EEPROM has expired.
*2 The normal display and 

e3

 will appear alternately. 

     When the Reset Key is pressed, 

e3

 will no longer be displayed even if the alarm set value is exceeded. 

(Monitoring is possible, however, because the counter will continue without clearing the output ON count.) 

Displayed only for models other than H5CZ-L8E

@

.

When conforming to EMC standards, refer to the information provided in this Instruction Manual for cable 
selection and other conditions.

This is a class A product. In residential areas it may cause radio interference, in which case the user may be 
required to take adequate measures to reduce interference. 

Basic insulation is provided between the power supply and input terminals. (No insulation is provided between 
the power supply and input terminals for the H5CZ-L8

@

D.)

Basic insulation is provided between power supply and output terminals, and between input and output 
terminals. When double insulation or reinforced insulation is required, apply double insulation or reinforced 
insulation as defined in IEC 60664 that is suitable for the maximum operating voltage with clearances or solid 
insulation.

 Installation in a Panel

H5CZ is normally installed on a flat surface in an operation panel. Use a Type 1 Enclosure for the operation 
panel.

 Use an isolated source for power input for the H5CZ-L8

@

D.

Use the isolated source for Inputs.

 Environment

Surrounding Air Temperature: 

10 to 40

°

C

 Power supply: The inputs are non-isolated. (Applicable to H5CZ-L8

@

D only)

The same power supply as the main power source should be used for that for input.

 Accessories (Order Separately)

Track Mounting/Front Connecting Socket

Flush Mounting Adapter

Waterproof Packing

8-pin

8-pin, finger-safe type

---

---

P2CF-08

P2CF-08-E

Y92F-30

Y92S-29

Precautions for Compliance with UL Standards and CSA Standards

Notice to Users of the H5CZ in the USA and Canada

Please use the following installation information instead of the general information in the instruction manuals in 
order to use the product under certified conditions of UL and CSA when the product is installed in the USA or 
Canada. These conditions are required by NFPA 70, National Electrical Code in the USA and the Canadian 
Electrical Code, Part I in Canada and may vary from information given in the product manuals or safety 
precautions.

*These dimensions vary with the type of DIN track (reference value).

P2CF-08(-E) Front-connecting 
sockets (order separately)

(51)

Panel

Y92S-29 (order separately) 
Waterproof Packing

Y92F-30 (order 
separately)
Flush Mounting 
Adapter

P3G-08 (order separately) 
Back-connecting Socket

Mounting Dimensions

 (Units: mm)

Flush Mounting

Front panel dimensions are the 
same.

Surface Mounting

H5CZ-L8

@

84.8

7.5

H5CZ
-L8

@

92.3*

90

Nomenclature

Terminal Arrangement

OFF

Parameters are set with the operation keys on the front panel.

Input Connections

No-voltage Inputs (NPN Inputs)

Open Collector

Voltage Output

Contact Input

Note: Operate with transistor ON

Note: Operate with transistor ON

Note: Operate with relay ON

0 V

Reset

Signal

PLC or 
sensor

Sensor

0 V

Reset

Signal

0 V

Reset

Signal

--.--

s

48

48

3

2

8

9

5

4

6

7

10

11

1

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