Standard I/O Modules
78 Unrestricted SICAM A8000 Series, SICAM I/O Modules
DC8-012-2.06, Edition 09.2019
2.10.6 External Circuitry
The following circuitry variants are examples and not related exclusively to the shown values.
Works on the circuitry may be performed in de
-energized state only!
During electrical installation, all the rules and regulations of power systems must be considered.
Open transformer circuits will result in electric shock and arc
flashover.
Will cause death, serious injury or considerable property damage.
Only measure current with external current transformers. Do not use fuses for circuit protection. Do not
open the secondary circuit under load. Short circuit the secondary current
terminals of the current
s before removing this device. The safety information for the current transformers used must
2.10.6.1.1 3-Phase Current
Through the current inputs I1_P/I1_N, I2_P/I2_N, I3_P/I3_N the corresponding phase currents
are measured.
For further examples refer to 2.8.6, External Circuitry
(AI-8510).
1
2
3
4
5
6
7
8
9
10
X1
AI-8510
225 mV
225 mV
225 mV
P2P1
P2
P1
P2
P1
S2S1
S2S1
S2
S1
1 A
1 A
1 A
1
2
3
4
5
6
X1
1
2
3
4
5
6
7
8
9
10
I1_P
I1_N
I2_P
I2_N
I3_P
I3_N
DNC
I3-
DNC
DNC
I1+
I1-
I3+
CM-8820
X2
FE Shield
I2-/IN-
I2-/IN+