InverterSINAMICS V20Verified · sol.ls-electric.com
SINAMICS V20 A504 — Inverter overtemp warn
Warning — monitor· AUTO-RESET
CAUSE
Why does it occur?
Heatsink temperature is just below the trip point.
REMEDY · Step by step
How to fix it?
Clean the cooling fan and filter, and check the ambient temperature.
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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