LogrobotLM

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FANUC Alarm MHND-021 — WARN Robot is in MANUAL mode

FANUC MHND-021 (“WARN Robot is in MANUAL mode”): On manual mode entry - Manual mode input from the PLC just turned ON. First check: Status message only.

Updated 2026-09-17 · LogrobotLM reference

Description

On manual mode entry - Manual mode input from the PLC just turned ON. All PLC manual mode input functions are enabled.

Remedy

Status message only.

Related codes

MHND-019WARN Robot mode must be MANUALMHND-020WARN Robot must be in AUTO modeMHND-022WARN Robot is in AUTO modeMHND-023WARN Robot is busy. Mode change pending.

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 →