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FANUC Alarm SPOT-401 — PAUSE WTC E01: Controller Failure

FANUC SPOT-401 (“PAUSE WTC E01: Controller Failure”): This is a fault from the WTC weld controller. First check: View the error code information in the WTC weld controller manual.

Updated 2026-08-29 · LogrobotLM reference

Description

This is a fault from the WTC weld controller.

Remedy · Remède

View the error code information in the WTC weld controller manual.

Frequently asked · Questions fréquentes

What does FANUC alarm SPOT-401 mean?
FANUC SPOT-401 (“PAUSE WTC E01: Controller Failure”): This is a fault from the WTC weld controller.
How do you troubleshoot FANUC alarm SPOT-401?
View the error code information in the WTC weld controller manual.

Related codes / Codes liés

SPOT-397Studwelding resume not allowedSPOT-399IWC FIRMWARE UPGRADEDSPOT-490IWC(DG) timer now in weld %d

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 →