InverterV20Verified · sol.ls-electric.com
V20 A503 — Undervoltage limit
Warning — monitor· AUTO-RESET
CAUSE
Why does it occur?
- Main supply failed, or main supply and consequently DC-link voltage (r00
- is below the specified limit.
REMEDY · Step by step
How to fix it?
Check the main supply 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