InverterSINAMICS G120Verified · sol.ls-electric.com
SINAMICS G120 F30004 — Power unit: overtemp
Trip — immediate stop
CAUSE
Why does it occur?
Heatsink temperature limit exceeded
REMEDY · Step by step
How to fix it?
Verify cooling fan operation, clean the intake filter, and check the ambient temperature and cabinet ventilation
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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