LogrobotLM

LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free → · Le diagnostic IA qui lit la sauvegarde de votre robot, sans rien téléverser.

FANUC Alarm PROG-042 — WARN Already released

FANUC PROG-042 (“WARN Already released”): Motion control was already released. First check: If you had expected that the task may have already released the group, this may not be an error.

Updated 2026-08-29 · LogrobotLM reference

Description

Motion control was already released.

Remedy · Remède

If you had expected that the task may have already released the group, this may not be an error. Otherwise, check UNLOCK_GROUP usage.

Frequently asked · Questions fréquentes

What does FANUC alarm PROG-042 mean?
FANUC PROG-042 (“WARN Already released”): Motion control was already released.
How do you troubleshoot FANUC alarm PROG-042?
If you had expected that the task may have already released the group, this may not be an error. Otherwise, check UNLOCK_GROUP usage.

Related codes / Codes liés

PROG-040PAUSE Already locked by other taskPROG-041WARN mctl denied because releasedPROG-043WARN Already released by youPROG-044WARN Arm has not been released yet

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 →