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FANUC Alarm MENT-003 — Communication CPU ROM abnormal

FANUC MENT-003 (“Communication CPU ROM abnormal”): Communication CPU ROM is abnormal. First check: Check the ME-NET board.

Updated 2026-09-17 · LogrobotLM reference

Description

Communication CPU ROM is abnormal.

Remedy

Check the ME-NET board.

Related codes

MENT-001ME-NET PCB not installedMENT-002ME-NET PCB abnormalMENT-004Communication CPU RAM abnormalMENT-005Communication CPU LSI abnormal

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. How this reference is built →