LogrobotLM

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FANUC Alarm MHND-020 — WARN Robot must be in AUTO mode

FANUC MHND-020 (“WARN Robot must be in AUTO mode”): The robot must be in full automatic mode with the PLC before production operation can occur. First check: The manual mode din from the PLC is set ON.

Updated 2026-08-29 · LogrobotLM reference

Description

The robot must be in full automatic mode with the PLC before production operation can occur.

Remedy · Remède

The manual mode din from the PLC is set ON. It must be OFF for automatic control of production.

Frequently asked · Questions fréquentes

What does FANUC alarm MHND-020 mean?
FANUC MHND-020 (“WARN Robot must be in AUTO mode”): The robot must be in full automatic mode with the PLC before production operation can occur.
How do you troubleshoot FANUC alarm MHND-020?
The manual mode din from the PLC is set ON. It must be OFF for automatic control of production.

Related codes / Codes liés

MHND-018WARN Program %s not loadedMHND-019WARN Robot mode must be MANUALMHND-021WARN Robot is in MANUAL modeMHND-022WARN Robot is in AUTO mode

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 →