LogrobotLM

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FANUC Alarm SPOT-021 — PAUSE GUN CLOSE DETECT input is on %s

FANUC SPOT-021 (“PAUSE GUN CLOSE DETECT input is on %s”): The GUN CLOSE DETECT input is high at the same time that the GUN OPEN DETECT input is to be checked. First check: Check the sensors to verify that the inputs are being properly turned on and off.

Updated 2026-08-29 · LogrobotLM reference

Description

The GUN CLOSE DETECT input is high at the same time that the GUN OPEN DETECT input is to be checked.

Remedy · Remède

Check the sensors to verify that the inputs are being properly turned on and off.

Frequently asked · Questions fréquentes

What does FANUC alarm SPOT-021 mean?
FANUC SPOT-021 (“PAUSE GUN CLOSE DETECT input is on %s”): The GUN CLOSE DETECT input is high at the same time that the GUN OPEN DETECT input is to be checked.
How do you troubleshoot FANUC alarm SPOT-021?
Check the sensors to verify that the inputs are being properly turned on and off.

Related codes / Codes liés

SPOT-019PAUSE Serial polling timeoutSPOT-020PAUSE Not in safe starting positionSPOT-022PAUSE GUN OPEN DETECT input is on %sSPOT-023PAUSE BU CLOSE DETECT is on %s

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 →