Siemens SENTRON PAC3120, Manual, Page: 45 / 160

Connection
4.2 Connections
PAC3120 and PAC3220
Equipment Manual, 10/2019,
L1V30425208F-01
43
Ⓐ Digital inputs and outputs
Ⓑ Measuring inputs voltage V
1
, V
2
, V
3
, V
N
Ⓒ Supply voltage L/+, N/ −
Ⓓ Measuring inputs current IL
1
, IL
2
, IL
3
Ⓔ RS485 connection
①
DIC Digital input (common)
②
DI1 Digital input 1
③
DI0 Digital input 0
④
DOC Digital output (common)
⑤
DO1 Digital output 1
⑥
DO0 Digital output 0
⑦
N − AC: Connection: Neutral conductor
DC: Connection: -
⑧
L+ AC: Connection: Conductor (phase voltage)
DC: Connection: +
⑨
V
N
Neutral conductor
⑩
V
3
Voltage U
L3-N
⑪
V
2
Voltage U
L2-N
⑫
V
1
Voltage U
L1-N
⑬
IL
3
l ↓ l Current I
L3
, output
⑭
IL
3
↑ k k Current I
L3
, input
⑮
IL
2
l ↓ l Current I
L2
, output
⑯
IL
2
↑ k k Current I
L2
, input
⑰
IL
1
l ↓ l Current I
L1
, output
⑱
IL
1
↑ k k Current I
L1
, input
Figure 4-1 Connection designations on PAC3120 (view from top and rear of the device)