breakerEOCRVerified · sol.ls-electric.com
EOCR P-F — Phase Fail
Trip — immediate stop
CAUSE
Why does it occur?
- Phase fail
- The three-phase current unbalance reached 100%; operates at 3s (delay settable)
REMEDY · Step by step
How to fix it?
Check the incoming supply and wiring for a lost phase.
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 ↗LSIS EMPR (DMPi) Series Manual (E 09-1909)
p.18