InverterSINAMICS G120Verified · sol.ls-electric.com
SINAMICS G120 F30021 — Earth fault
Trip — immediate stop
CAUSE
Why does it occur?
Ground short on the output side or in the motor winding
REMEDY · Step by step
How to fix it?
Measure the motor insulation resistance and check the output cable insulation
Do not reset repeatedly before identifying the cause. Repeated resets while ignoring a trip/alarm can cause secondary damage (IGBT failure, motor winding damage, etc.).
SOURCE
Related manual page
Summary based on the official Siemens AG manual. For accurate and complete information, always consult the official manual.
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