InverterSINAMICS G120Verified · sol.ls-electric.com
SINAMICS G120 A05002 — Power unit DC overvolt warn
Warning — monitor· AUTO-RESET
CAUSE
Why does it occur?
DC link voltage is approaching the trip threshold
REMEDY · Step by step
How to fix it?
Increase the deceleration time; add a braking resistor
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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