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