LogrobotLM

LogrobotLM — AI fault diagnosis for ABB · KUKA · FANUC robots. It reads your robot backup in your browser (never uploaded) and pinpoints the fault. Try it free → · Le diagnostic IA qui lit la sauvegarde de votre robot, sans rien téléverser.

FANUC Alarm ARC-155 — STOP Comm . Timeout(E:%d)

FANUC ARC-155 (“STOP Comm . Timeout(E:%d)”): Communication with RoboWeld power source is timeout. First check: Confirm port setup and connection cable.

Updated 2026-08-29 · LogrobotLM reference

Description

Communication with RoboWeld power source is timeout.

Remedy · Remède

Confirm port setup and connection cable.

Frequently asked · Questions fréquentes

What does FANUC alarm ARC-155 mean?
FANUC ARC-155 (“STOP Comm . Timeout(E:%d)”): Communication with RoboWeld power source is timeout.
How do you troubleshoot FANUC alarm ARC-155?
Confirm port setup and connection cable.

Related codes / Codes liés

ARC-153STOP Invalid wire material(E:%d)ARC-154STOP Invalid Arc Loss Time(E:%d)ARC-156SYSTEM RoboWeld Error(0x%X, %d)ARC-157STOP Receive error(0x%X)(E:%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 →