ServoMR-JEVerification pending — cross-check with the official manual
MR-JE AL.15 — Memory Error 2 (EEP-ROM)
Trip — immediate stop
CAUSE
Why does it occur?
- Fault in servo amplifier EEP-ROM (non-volatile parameter storage)
- Causes: EEP-ROM read failure at power-on, write error during tuning, home position data corruption, or write cycle limit (~100,000) exceeded
REMEDY · Step by step
How to fix it?
- Disconnect all cables except power and verify if fault repeats — if repeatable, replace servo amplifier
- Check for external noise
- If home position data is corrupt, re-execute home position setting
- Reduce frequency of parameter changes
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 Mitsubishi Electric manual. For accurate and complete information, always consult the official manual.
Open official manual ↗