Special measures to prevent cross-circuits and short-circuits
The routing of cables over longer distances, e.g. between remote control cabinets, increases the
risk of damaging cables. Damaged cables raise the risk of an undetected cross-circuit with power-
conducting cables laid in parallel. A cross-circuit can cause interruption to the transfer of safety-
related signals.
To avoid cross circuit faults and short-circuits, you must protect the cables between a sensor
and the converter; this can be done by routing the cables separately or in a steel pipe/duct
On and o test
The converter lters signal changes using on and o tests at the failsafe digital input using an
adjustable software lter.
Installing
4.10Connecting the interfaces for the converter control
SINAMICS G120C Converters
102 Operating Instructions, 02/2023, FW V4.7 SP14, A5E34263257B AK
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