LogrobotLM

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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 2026-09-17 · LogrobotLM reference

Description

Motion control was already released.

Remedy

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

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. How this reference is built →