ServoMR-J4Verification pending — cross-check with the official manual
MR-J4 AL.47 — Cooling fan error
Trip — immediate stop
CAUSE
Why does it occur?
- - The speed of the servo amplifier cooling fan decreased. - Or the fan speed decreased to the alarm occurrence level or less. Detail No. Detail name Cause Check method Check result Action Target 47.1 Cooling fan stop error (
- Foreign matter was caught in the cooling fan. Check if a foreign matter is caught in the cooling fan. Something has been caught. Remove the foreign matter. [A] [B] [WB] [RJ0
REMEDY · Step by step
How to fix it?
Replace the cooling fan
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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