InverterSINAMICS G120Verified · sol.ls-electric.com
SINAMICS G120 F07801 — Motor overcurrent
Trip — immediate stop
CAUSE
Why does it occur?
Output current exceeded the hardware limit — short circuit, ramp-up time too short, or motor parameter mismatch
REMEDY · Step by step
How to fix it?
Check the output for short circuit and ground fault, increase the ramp-up time P1120, and re-run auto-tuning (P1900)
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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