LogrobotLM

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FANUC Alarm ARC-142 — MCC monitor abnormal(E:%d)

FANUC ARC-142 (“MCC monitor abnormal(E:%d)”): MCC is OFF even though the MCC request is ON. First check: Check the MCC and signal line for MCC.

Updated 2026-08-29 · LogrobotLM reference

Description

MCC is OFF even though the MCC request is ON.

Remedy · Remède

Check the MCC and signal line for MCC.

Frequently asked · Questions fréquentes

What does FANUC alarm ARC-142 mean?
FANUC ARC-142 (“MCC monitor abnormal(E:%d)”): MCC is OFF even though the MCC request is ON.
How do you troubleshoot FANUC alarm ARC-142?
Check the MCC and signal line for MCC.

Related codes / Codes liés

ARC-140MCC I/O parameter wrong(E:%d, %d)ARC-141MCC stick detected(E:%d)ARC-143Power supply/feeder com alarm(E:%d)ARC-144PS internal com-error(E:%d)

Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →