ServoMR-J4Verification pending — cross-check with the official manual
MR-J4 AL.7 — Parameter setting error (safety observation function)
Trip — immediate stop
CAUSE
Why does it occur?
- - The safety observation function detected an error. Detail No. Detail name Cause Check method Check result Action Target 7D.1 Stop observation error (
- During activation of SOS function, the position of the servo motor has changed by more than the SOS allowance value set by parameter. Check that the actual servo motor position is higher than the setting value of [Pr. PSA05]. The travel distance
REMEDY · Step by step
How to fix it?
An English description for this code is being prepared. Please refer to the official manufacturer manual, or view the Korean original. 한국어 원문 보기 →
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.
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