Siemens 7KM1020-0BA01-1DA0, Manual, Page: 31 / 94

Connection
4.2 Connections
PAC1020
Equipment Manual, 05/2020, L1V30610008B-01
29
4.2 Connections
Connection designations
No. Connection Function No. Connection Function
Ⓐ Digital inputs and outputs ⑨ V
N
Voltage measuring input -
Neutral conductor
Ⓑ V
1
, V
2
, V
3
,
V
N
Voltage measuring inputs ⑩ V
3
Voltage measuring input
Ⓒ L+, N- Supply voltage ⑪ V
2
Voltage measuring input
Ⓓ IL
1
, IL
2
, IL
3
Current measuring inputs ⑫ V
1
Voltage measuring input
Ⓔ RS485 communication inter-
face
⑬ I
L3
l↓ Current measuring output
① DOC Digital output (common) ⑭ I
L3
↑k Current measuring input
② DO0 Digital output 0 ⑮ I
L2
l↓ Current measuring output
③ DIC Digital input (common) ⑯ I
L2
↑k Current measuring input
④ DI0 Digital input 0 ⑰ I
L1
l↓ Current measuring output
⑦ N- AC: Connection: Neutral
conductor
⑱ I
L1
↑k Current measuring input
⑧ L+ AC: Connection: Conductor
(phase voltage)
Figure 4-1 PAC1020 connection designations (rear view of device)