Micromod MOD: Remote I/O Modules for use with 2020N Remote I/O Interface Module - Manual (Page 37)

Remote I/O Modules
ELECTRICAL CONNECTIONS
Electrical connection
• An external 24 VDC power supply is necessary to use inputs and outputs. Connect the
common + terminals 19 and 20 to the 24 VDC power supply.
• When switching high current loads, use additional common + terminals to avoid damage to
the base.
• Caution: if the 24 VDC is connected to common "+", the remote unit can be supplied by
the external power supply even if the main power supply is OFF.
ICSC08L1 120 VAC
I/O REMOTE UNIT ABB Procontic CS 31
Unit error
Bus error TEST
0
1
2
3
4
5
6
7 Overload
0 1 2 3
1
3 2 4
Short circuit
Cut wire
4 5 6 7
Output
Input
Shield
Bus # 1
Bus # 2
Common +
Common +
Common -
Common -
Common +
Common +
Common +
Common +
Common +
Common +
Common +
Common +
Common +
Common +
A
B
C
D
E
F
G
H
Common –
Load
Load
Load
L1
N
PE
Not Used
33