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5.8 Wiring Example of Heater Burnout Alarm (single-phase) + Alarm Output (AW option)
If the AW option [Heater burnout alarm (single-phase) + Alarm output] is added, connectors for the
Heater burnout alarm (CT) input and Alarm output will be equipped on the top of the unit.
The following shows connector numbers and corresponding Heater burnout alarm (CT) input and Alarm
output.
(Table 5.8-1)
Connector No.
CT Input, Alarm Output
1
CH1 CT input
2
CH1 Alarm output
3
CH2 CT input
4
CH2 Alarm output
Output specifications are shown below.
Open collector: Control capacity, 0.1 A 24 V DC
Wiring Method of CT
(1) Pass the heater wire into the hole of CT, and solder the wires of the wire harness provided.
There is no polarity.
(2) CH1: Insert the wire harness into the CH1 CT input connector.
CH2: Insert the wire harness into the CH2 CT input connector.
Wiring Example of Heater Burnout Alarm (CT) input and Alarm Output
(Fig. 5.8-1)
Alarm unit
Alarm unit
WCL-13A top view
WCL-13A interior
Power supply
CT
Heater
Heater
Power supply
+
-
DC Power
supply
Wire harness
CT