FANUC Alarm ARC-125 — Cannot start stitch in a weld
FANUC ARC-125 (“Cannot start stitch in a weld”): An Arc Stitch instruction was executed while welding. First check: Edit the program so the Arc Stitch instruction is not between an Arc Start and Arc End.
Updated 2026-08-29 · LogrobotLM reference
Description
An Arc Stitch instruction was executed while welding. Stitch welds begin with an Arc Stitch and end with an Arc End. Arc Stitch cannot execute between Arc Start and Arc End.
Remedy · Remède
Edit the program so the Arc Stitch instruction is not between an Arc Start and Arc End.
Frequently asked · Questions fréquentes
- What does FANUC alarm ARC-125 mean?
- FANUC ARC-125 (“Cannot start stitch in a weld”): An Arc Stitch instruction was executed while welding. Stitch welds begin with an Arc Stitch and end with an Arc End. Arc Stitch cannot execute between Arc Start and Arc End.
- How do you troubleshoot FANUC alarm ARC-125?
- Edit the program so the Arc Stitch instruction is not between an Arc Start and Arc End.
Related codes / Codes liés
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 →