252 Optional I/O extension modules
General cabling instructions
Obey the instructions given in chapter Planning the electrical installation on page 65.
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.
Relay output connection example
Digital input connection example
76 HDI11 115/230 V input 5
77 HDI12 115/230 V input 6
78
NEUTRAL
1)
Neutral point
1)
Neutral points 72, 75 and 78 are connected.
Marking Description
24 V DC
50
51
52
CHDI-01
RO4C
RO4A
RO4B
65
66
67
CHDI
-01
HDI7
HDI8
NEUTRAL
230 V AC source
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