ServoMR-J4Verification pending — cross-check with the official manual
MR-J4 AL.95 — STO warning
Trip — immediate stop
CAUSE
Why does it occur?
- - STO input signal turns off while the servo motor stops. - A diagnosis of input devices was not executed. - The safety observation function was enabled in the test mode
- Detail No
- Detail name Cause Check method Check result Action Target
REMEDY · Step by step
How to fix it?
Recovers to normal after checking the information.
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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