InverterSINAMICS G120Verified · sol.ls-electric.com
SINAMICS G120 F30002 — Power unit: DC link overvoltage
Trip — immediate stop
CAUSE
Why does it occur?
Regenerative energy or supply overvoltage
REMEDY · Step by step
How to fix it?
Increase the deceleration time, apply a braking chopper/resistor, and measure the input voltage
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.
Open official manual ↗CALLBACK
Request an expert callback
A 12-year automation/SI engineer responds directly. Reply within 1–3 business days.