ServoMR-J4Verification pending — cross-check with the official manual
MR-J4 AL.88888 — Watchdog
Trip — immediate stop
CAUSE
Why does it occur?
- - [RJ010]: MR-J3-T10 came off. - A part such as CPU is malfunctioning. Detail No. Detail name Cause Check method Check result Action Target 88._/ 8888._ Watchdog (
- The MR-J3-T10 came off during the CC-Link IE communication. Check if [AL. 74 Option card error 1] occurred with alarm history. It is occurring. Check it with the check method for [AL. 74]. [RJ010] It did not occur. Check (2). (
- A pa
REMEDY · Step by step
How to fix it?
Cycle power; if it recurs, replace the amplifier.
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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