External Circuitry; Short-Circuit Indicator - Siemens SICAM A8000 Series Manual

Standard I/O Modules
2.9.6

External Circuitry

The following circuitry variants are examples and not related exclusively to the shown values.
Danger
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.
2.9.6.1

Short-Circuit Indicator

The current inputs I1, I2/IN, I3 are connected with the LoPo measuring sensors of the
corresponding phase currents.
In this configuration, the module functions as short-circuit indicator. Fault information on the
direction is not provided.
L1
L2
L3
N
Note
With this connection scheme, the accuracy of ground current measurements for isolated/resonant ground
connections cannot be assured.
70
AI-8511
Unrestricted
S2
S1
P1
P2
S1 S2
P1
P2
S1 S2
P1 P2
SICAM A8000 Series, SICAM I/O Modules
DC8-012-2.06, Edition 09.2019