Layout and example connections
2-pin terminal block for relay output42-pin terminal block for external power sup-
ply
3
62
63
CMOD-02
CCU
34
35
X4
36
37
38
OUT1
OUT2
SGND
IN1
IN2
RO PTC C
RO 
PTC B
40
41
+
-
24V AC/DC + in
24V AC/DC - in
24 V AC/DC
Common, CRO PTC C62External 24 V (AC/DC) input24 V AC/DC +
in
40
Normally open, NORO PTC B63External 24 V (AC/DC) input24 V AC/DC -
in
41
Grounding screw1Motor thermistor connection5
One to six PTC thermistors connected in series.
Hole for mounting screw2PTC connectionPTC IN60
Diagnostic LED6Ground (earth) potentialPTC IN61
Mechanical installation
■ Necessary tools
• Screwdriver and a set of suitable bits.
274 CMOD-02 multifunction extension module (external 24 V AC/DC and isolated PTC interface)