OMRON H3CA User Manual

4.4 (7)

Product Operation and Setup Instructions

1A983

 

 

Please read and save these instructions. Read carefully before attempting to assemble, install, operate, or maintain the product described. Protect yourself and others by observing all safety information. Failure to comply with instructions could result in personal injury and/or property damage! Retain instructions for future reference.

OMRONH3CA Solid-State Timer

Description

OMRON multi-mode/multi-range solid-state timer is digital set with wide 0.1 sec to 9990 hour range in a compact, 1/16 DIN plug-in unit. Easy-to-read LCD time remaining bar graph and output status indicators. Many control modes to match most applications. Thumbwheel switch selects time unit, control mode, and time limit setting. Wide supply range. Timer is UL

Recognized and CSA Certified.

Specifications

TIME DELAY

 

Adjustment ........

5-digit switches

Range ..............

0.1 sec to 9,990

 

hours

Repeatability ... +/- 0.3%, +/- 0.05 seconds over specified timing range

Reset Time ..........

0.5 sec max.

POWER

Operating Voltage -

24 to 240 VAC or 24 to 240 VDC

Power Consumption

....... AC 3VA

 

 

or DC 3W

Frequency

....................

50/60 Hz

OUTPUT

 

 

Type ....................

Relay S.P.D.T.

Life ..........

Mechanical -

 

10,000,000 operations

Dielectric .......

2,000 volts RMS at

50/60 Hz between current carrying and non-current carrying parts

ENVIRONMENTAL

Operating Temperature ..... -14 to

 

131 degrees F

Humidity ...............

35 to 85% RH

MECHANICAL

Termination ...............

11 pin plug

Mounting .....

Panel, track, surface

GENERAL SAFETY

RECOMMENDATIONS

! WARNING

Disconnect power when connecting or disconnecting the timer or its loads.

! CAUTION

Do not change the time unit or time range while the timer is in operation. Otherwise, the timer may malfunction or be damaged. Be sure to turn off the power supply to the timer before changing any of the selections.

1.This timer should be wired by qualified personnel according to the National Electrical Code (NEC) and local codes.

2.Do not connect input or contact terminals to voltages higher than those indicated on timer.

3.Protect the coil and load circuits with properly rated fuses.

4.Do not install in damp or moist locations.

5.Any application of this timer should be designed to prevent bodily injury, or property damage, in the event of product failure or normal wearout of this product.

GLOSSARY

No Voltage or Dry Contact

The inputs (Start, Reset, Gate, and Check) on this timer are considered a no voltage or dry contact thus requires no external voltage source to activate. Simply connecting them to the common terminal (Pin 3 or 15) via a switch, relay contact, open collector sensor, and etc., is all that is required to activate each input.

Gate Input (Pause)

When the gate input is closed, timing is temporarily stopped. When the gate opens, timing resumes at the point of interruption.

Check Input

When check input is used in ONdelay mode, the elapse time measurement of the set time is not performed - especially useful where ON-delay override is desired. In Repeat Cycle mode, the check input allows the timer to be used like a binary flip-flop or alternating relay.

OMRON H3CA User Manual

Product Operation and Setup Instructions

1A983

Terminal/Pin Configuration

Reset

 

 

 

 

 

 

 

 

Pins 3 & 7 is the Reset Input

 

 

 

 

Pins 3 & 6 is the Start Input

Start

 

 

 

Pins 3 & 5 is the Gate Input

 

 

 

Pins 3 & 4 is the Check Input

 

 

5

6

7

 

 

 

Gate

4

H3CA-A

8

 

 

 

 

 

3

 

 

9

Check

 

2

 

10

 

 

1

11

 

COM

 

 

 

 

Pins 8, 9, and 11 are

Supply Voltage terminals for the timer's internal output relay.

Supply voltage can be either a AC or DC source

 

4

5

Timed

H3CA-8

3

6

contact

 

 

 

2

7

 

1

8

 

4

5

Instantaneous

H3CA-8H

3

6

contact

 

 

 

2

7

1 8

*

A1 15 D1 C1 B1

H3CA-FA

Reset Start G

16 18 E1 X A2

* *

Check

Supply voltage can be either a AC or DC source

*Outputs: Pins 15, 16, and 18 are

the terminals for the timer's internal output relay.

Pin 15 is the COM.

Pin 16 is the NC contact.

Pin 18 is the NO contact.

 

Outputs: Pins 1,3,4,5,6, and 8 are the terminals for

 

the H3CA-8 internal output relays.

Timed

Pin 1 is the COM for relay #1.

contact

Pin 3 is the NO contact for relay #1.

 

Pin 4 is the NC contact for relay #2.

 

Pin 8 is the COM for relay #2.

 

Pin 6 is the NO contact for relay #2.

 

Pin 5 is the NC contact for relay #2.

Outputs: Pins 1,3,4,5,6, and 8 are the terminals for the H3CA-8H internal output relays.

Relay #1: Is an instantaneous contact. Which means this relay will immediately switch when power is apply

Timed

to timer.

contact

Pin 1 is the COM for relay #1.

 

 

Pin 3 is the NO contact for relay #1.

 

Pin 4 is the NC contact for relay #2.

 

Relay #2: Is a timed contact. Which means this

 

relay will only switch at the end of the time delay

 

period.

 

Pin 8 is the COM for relay #2.

 

Pin 6 is the NO contact for relay #2.

 

Pin 5 is the NC contact for relay #2.

 

Because both internal relay outputs are totally

 

different in function. Please make sure not to wire

 

these relays together in an application.

Product Operation and Setup Instructions

Operation

RANGE SELECTION

There are seven different timing ranges from which to choose. Press the rightmost thumbwheel switch to select the desired time unit. When making your choice the selected time unit will be displayed in the time unit display window.

The seven time units are:

Time units

Timing ranges

0.1 s

0.1 to 99.9 seconds

s1 to 999 seconds

0.1m 0.1 to 99.9 minutes

m

1 to 999 minutes

0.1 h

0.1 to 99.9 hours

h

1 to 999 hours

10 h

10 to 9990 hours

Be sure turn off the power supply to the timer before changing any of the selections.

MODE SELECTIONS

There are eight different operating modes from which to choose. Press the leftmost thumbwheel switch to select the desired operation mode. When making your choice the operation mode will be displayed in the operation mode display window.

The eight operation modes are:

Mode Operation

A

ON-delay

B

Repeat (50% fixed duty cycle)

C

Signal Interval/OFF-delay

D

Signal OFF-delay ( l )

E

Interval

FCycle One-shot

GSignal ON-delay/OFF-delay

HSignal OFF-delay ( ll )

Note:

The operation mode is fixed to "A" in type H3CA-8 and H3CA-8H timers.

Read thru the operation and application sections of this instruction manual to determine the proper function selection for your application. To insure proper operation, the supply voltage should be disconnected before changing functions.

Mode A ON-delay (Power-ON Start/Power OFF

Reset): Connect start terminals (3 & 6). Upon application of power to the timer, time delay period begins. At the end of time delay period, output contacts switches, either connecting or disconnecting load. Output remains switched until power is removed or a reset input is applied.

Power

ON

 

2 - 10

OFF

 

ON

Start 3 - 6

 

OFF

 

Output

ON

Timing

 

9 - 11

OFF

 

 

 

Figure 1

Mode A ON-delay

(Signal Start): Power is applied continuously. Time delay period begins at the leading edge of start input. Output contact switches when the accumulated time equals the set time. Subsequent start signals during or after timing will not be accepted. The output relay will remain switched until a reset input is applied or power is interrupted.

Power

ON

2 -10

OFF

 

Start 3 -6

ON

 

 

OFF

Output

ON

 

9 - 11

OFF

 

Timing

Figure 2

1A983

Mode B Repeat Cycle - Signal Start (50% fixed duty cycle):

Power is continuously applied. The OFF/ON cycle is initiated at the leading edge of the start input. The output relay will be OFF for the set time and ON for the set time. The ON and OFF cycle will continue to alternate until a reset input is applied or power is disconnected.

Power

ON

 

2 -10

OFF

 

 

ON

Start 3 - 6

OFF

 

Output

ON

 

 

 

 

On Time

 

 

 

 

 

 

 

 

 

 

 

 

 

9 - 11

OFF

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Off Time

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Figure 3

Mode B Repeat Cycle - Power ON Start/Power-OFF Reset (50% fixed duty cycle): Connect start terminals (3 & 6). Upon application of power to the timer, the OFF delay is initated for the set time and then ON for the set time. The ON and OFF cycle will continue to alternate until a reset input is applied or power is disconnected.

Power

ON

 

2 -10

OFF

 

Start 3 - 6

ON

 

 

OFF

Output

ON

 

9 - 11

OFF

 

Figure 4

On Time

Off Time

Mode C

Signal Interval/OFF-delay:

Power is continously applied. Time delay period begins on both the leading and trailing edges of the start input. Output contact switches during time delay period, either connecting or disconnecting load. Once the timer has timed out from the trailing edge, it resets and is ready for subsequent start inputs. Refer to Figure 5.

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