LogrobotLM

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FANUC Alarm ARC-072 — STOPL Illegal AMR packet

FANUC ARC-072 (“STOPL Illegal AMR packet”): Internal error. First check: Sometimes this error requires cycling the controller power.

Updated 2026-09-17 · LogrobotLM reference

Description

Internal error.

Remedy

Sometimes this error requires cycling the controller power.

Related codes

ARC-057Cannot ramp t1=… > t2=…ARC-058Wire stick is still detectedARC-084ABORT Application process is changed during weldingARC-085STOPL Incomplete of conversion factor setup

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 →