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FANUC Alarm ARC-026 — WARN Cannot scale AIO while welding

FANUC ARC-026 (“WARN Cannot scale AIO while welding”): An analog scaling limit was modified while welding. First check: Turn off the controller and turn it on again.

Updated 2026-08-29 · LogrobotLM reference

Description

An analog scaling limit was modified while welding. The scaling was not changed.

Remedy · Remède

Turn off the controller and turn it on again.

Frequently asked · Questions fréquentes

What does FANUC alarm ARC-026 mean?
FANUC ARC-026 (“WARN Cannot scale AIO while welding”): An analog scaling limit was modified while welding. The scaling was not changed.
How do you troubleshoot FANUC alarm ARC-026?
Turn off the controller and turn it on again.

Related codes / Codes liés

ARC-024WARN Invalid equipment rangeARC-025WARN Invalid A/D or D/A rangeARC-027STOPL Voltage AO is not scaled (%s ^ 4 , %d^5)ARC-028STOPL Current AO is not scaled (%s ^ 4 , %d^5)

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 →