PLCXGRVerified · sol.ls-electric.com
XGR 301 — Standby CPU Redundancy Failure (Master Error)
Trip — immediate stop
CAUSE
Why does it occur?
Standby CPU failed to operate as redundancy because of error of Master CPU
REMEDY · Step by step
How to fix it?
Set standby CPU to STOP, cancel master CPU error and restart; or restart standby CPU as single operation
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
Verified · sol.ls-electric.com
Open PDF ↗XGR CPU Module User Manual V2.9 202412 (Eng)
15.5 Error Codes List · p.252 · V2.9