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FANUC Alarm ARC-048 — WARN Auto AI/O setup is unsupported

FANUC ARC-048 (“WARN Auto AI/O setup is unsupported”): Auto AI/O setup for the mounted I/O module is not supported. First check: Verify mounted I/O module and set system variables of $AWEPRR[] in system variable screen manually if need.

Updated 2026-08-29 · LogrobotLM reference

Description

Auto AI/O setup for the mounted I/O module is not supported. So parameters are not set automatically.

Remedy · Remède

Verify mounted I/O module and set system variables of $AWEPRR[] in system variable screen manually if need.

Frequently asked · Questions fréquentes

What does FANUC alarm ARC-048 mean?
FANUC ARC-048 (“WARN Auto AI/O setup is unsupported”): Auto AI/O setup for the mounted I/O module is not supported. So parameters are not set automatically.
How do you troubleshoot FANUC alarm ARC-048?
Verify mounted I/O module and set system variables of $AWEPRR[] in system variable screen manually if need.

Related codes / Codes liés

ARC-046WARN Weld EQ communication errorARC-047WARN Not allowed during a weldARC-049WARN Process %d switch to %d failedARC-050WARN Process %d NOT found

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 →