ServoMR-J4Verification pending — cross-check with the official manual
MR-J4 AL.64 — Functional safety unit setting error
Trip — immediate stop
CAUSE
Why does it occur?
- - A setting of the servo amplifier or functional safety unit was incorrect. Detail No. Detail name Cause Check method Check result Action Target 64.1 STO input error (
- When a functional safety unit is used, a connector is connected to CN8 of the servo amplifier. Check the connection of the CN8 connector. It is connected. Turn off the control circuit power supply of the servo amplifier, and then
REMEDY · Step by step
How to fix it?
Re-run the home return and check the home position sensor signal
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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