LogrobotLM

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FANUC Alarm PROG-039 — WARN locked, but not get mctl

FANUC PROG-039 (“WARN locked, but not get mctl”): Motion control for the specified group was reserved, but it cannot be obtained. First check: Check the teach pendant enable switch and other running programs to determine who has motion control.

Updated 2026-09-17 · LogrobotLM reference

Description

Motion control for the specified group was reserved, but it cannot be obtained.

Remedy

Check the teach pendant enable switch and other running programs to determine who has motion control.

Related codes

PROG-036WARN The length of trace array is 0PROG-037WARN No data in the trace arrayPROG-040PAUSE Already locked by other taskPROG-041WARN mctl denied because released

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 →