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FANUC Alarm MOTN-240 — STOP J4 is not zero

FANUC MOTN-240 (“STOP J4 is not zero”): Given position's J4 angle is not zero. First check: Confirm position data

Updated 2026-09-17 · LogrobotLM reference

Description

Given position's J4 angle is not zero.

Remedy

Confirm position data

Related codes

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 →