InverterV20Verified · sol.ls-electric.com
V20 F20 — DC ripple too high
Trip — immediate stop
CAUSE
Why does it occur?
- The calculated DC ripple level exceeded the safe threshold
- This is commonly caused by loss of one of the mains input phases
REMEDY · Step by step
How to fix it?
Check the mains supply wiring (look for an input phase loss).
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