OMRON H3CA User Manual

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.

OMRON H3CA Solid-State TimerH3CA 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.

ENVIRONMENTAL

Operating Temperature ..... -14 to

131 degrees F

Specifications

TIME DELAY

Adjustment ........ 5-digit switches

Humidity ............... 35 to 85% RH

MECHANICAL

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

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

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.

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.

Product Operation and Setup Instructions 1A983

Gate

Terminal/Pin Configuration

Reset

15 D1 C1 B1

H3CA-FA

Reset Start

Start

Gate

H3CA-A

Pins 3 & 7 is the Reset Input Pins 3 & 6 is the Start Input Pins 3 & 5 is the Gate Input Pins 3 & 4 is the Check Input

Check

COM

Timed

contact

Supply Voltage

Supply voltage can be either a

AC or DC source

Pins 8, 9, and 11 are terminals for the timer's internal output relay.

H3CA-8

16 18 E1 X A2

Check

*Outputs: Pins 15, 16, and 18 are

the terminals for the timer's internal output relay.

Supply voltage can be either a

AC or DC source

Timed

contact

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

the H3CA-8 internal output relays. 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.

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.

Pin 15 is the COM. Pin 16 is the NC contact. Pin 18 is the NO contact.

Instantaneous

contact

H3CA-8H

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

Timed

contact

the H3CA-8H internal output relays. Relay #1: Is an instantaneous contact. Which means

this relay will immediately switch when power is apply to timer. 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 1A983

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

0.1 s 0.1 to 99.9 seconds s 1 to 999 seconds

0.1 m 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

A ON-delay B Repeat

C Signal Interval/OFF-delay D Signal OFF-delay ( l ) E Interval F Cycle One-shot G Signal ON-delay/OFF-delay H Signal OFF-delay ( ll )

Note:

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

(50% fixed duty cycle)

Timing ranges

Operation

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 2 - 10

Start 3 - 6

Output 9 - 11

OFF

Timing

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 2 -10

Start 3 -6

Output 9 - 11

OFF

Timing

Figure 2

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 2 -10

Start 3 - 6

Output 9 - 11

OFF

On Time

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 2 -10

Start 3 - 6

Output 9 - 11

OFF

On Time

Off Time

Figure 4

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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