OUTPUT MODULES

TYPICAL CONNECTIONS

Relay:

Type: Form-C (Form-A with some models. See ordering information.)

Rating: 5 amps @ 120/240 VAC or 28 VDC (resistive load), 1/8 HP @ 120

VAC (inductive).

Life Expectancy: 100,000 cycles at maximum load rating.

(Decreasing load and/or increasing cycle time, increases life expectancy).

Logic/SSR Drive: Can drive multiple SSR Power Units.

Type: Non-isolated switched DC, 12 VDC typical

Drive: 45 mA maximum.

Triac:

Type: Isolated, Zero Crossing Detection

Rating:

Voltage: 120/240 VAC

Max. Load Current: 1 ampere @ 35°C

0.75 ampere @ 50°C

Min. Load Current: 10 mA

Off State Leakage Current: 7 mA max. @ 60 Hz

Operating Frequency: 20 to 400 Hz

Protection: Internal Transient Snubber, Fused

LOAD

A

B

C

POWER

5 AMPS

AT

240

VAC

RELAY

MODULE

DO NOT CONNECT

SSR

POWER

UNIT

LOAD

4

3

1

2

A

B

C

POWER

+12VDC

UNREG.

+

-

NOT

ISOLATED

LOGIC/SSR DRIVE

MODULE

POWER

120VAC

AT

1 AMP

120/240VAC

ISOLATED

A

B

C

RELAY OR

DEVICE

TRIAC

LOAD

DO NOT CONNECT

TRIAC MODULE

APPLICATION

Several TCU controllers are

employed to control the temperature of

a plastics extruder. Each TCU controls

a heating element and a cooling water

solenoid to maintain each extruder

zone at a desired temperature. The

heater current monitor of the TCU is

used for early detection of heater

element failure. The linear DC output

is used to retransmit the process

temperature to a control computer for

data logging purposes.

OP1-A

OP1-B

OP1-C

USER INPUT

TC +

COMM

OUT +

OUT -

N/C

N/C

CT

CT

DATA

EXTRUDER

SUPPLY

CURRENT

TRANSFORMER

SSR

POWER

UNIT

AC POWER

120 VAC

COOLING OUTPUT

HEATER CURRENT FAIL OUTPUT

MAIN CONTROL OUTPUT

THERMOCOUPLE INPUT

4 -20 mA LINEAR DC OUTPUT

SECOND INPUT

(CURRENT TRANSFORMER)

240V HEATER

WATER

COOLING

ALARM/COOLING

SUPPLY

HB

ALARM

TEMPERATURE RETRANSMISSION

LOGGER

16

15

14

13

12

11

10

9

8

7

6

5

4

3

2

1

COOLING/ALARM COMMON

AL1-A

OP2-A

AL1/OP2 COMM

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