Wiring
Connect the external control cables to the applicable module terminals. Ground the outer
shield of the cables 360 degrees under a grounding clamp on the grounding shelf of the
control cables.
Motor thermistor connection example
60
61
1)
CMOD-02
PTC IN
PTC IN
One or 3…6 PTC thermistors connected in series.1)
The PTC input is reinforced/double insulated. If the motor part of the PTC sensor and wiring
are reinforced/double insulated, voltages on the PTC wiring are within SELV limits.
If the motor PTC circuit is not reinforced/double insulated (ie, it is basic insulated), it is
mandatory to use reinforced/double insulated wiring between the motor PTC and CMOD-02
PTC terminal.
Relay output connection example
62
63
CMOD-02
CCU
34
35
X4
36
37
38
OUT1
OUT2
SGND
IN1
IN2
RO PTC C
RO
PTC B
Power supply connection example
40
41
1)
+
-
24V AC/DC + in
24V AC/DC - in
CMOD-02
External power supply, 24 V AC/DC1)
WARNING!
Do not connect the +24 V AC cable to the control unit ground when the control
unit is powered using an external 24 V AC supply.
Optional I/O extension modules 283
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