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FANUC Alarm MHND-023 — WARN Robot is busy. Mode change pending.

FANUC MHND-023 (“WARN Robot is busy. Mode change pending.”): Robot mode is being changed while the robot is busy First check: When the robot is idle, change the manual mode bit again to the desired state.

Updated 2026-09-17 · LogrobotLM reference

Description

Robot mode is being changed while the robot is busy

Remedy

When the robot is idle, change the manual mode bit again to the desired state. NOTE: The system is watching for a change in input setting to change the robot mode.

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 →