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FANUC Alarm ARC-126Bad stitch weld or pitch length

FANUC ARC-126 (“Bad stitch weld or pitch length”): An Arc Stitch instruction could not execute because the stitch weld length or the pitch length were invalid or the stitch weld length was larger than the pitch length. First check: Modify the stitch weld length or pitch length.

Updated 2026-08-29 · LogrobotLM reference

Description

An Arc Stitch instruction could not execute because the stitch weld length or the pitch length were invalid or the stitch weld length was larger than the pitch length.

Remedy · Remède

Modify the stitch weld length or pitch length. $aweupr[eq].$st_weld_len or $aweupr[eq].$st_ptch_len

Frequently asked · Questions fréquentes

What does FANUC alarm ARC-126 mean?
FANUC ARC-126 (“Bad stitch weld or pitch length”): An Arc Stitch instruction could not execute because the stitch weld length or the pitch length were invalid or the stitch weld length was larger than the pitch length.
How do you troubleshoot FANUC alarm ARC-126?
Modify the stitch weld length or pitch length. $aweupr[eq].$st_weld_len or $aweupr[eq].$st_ptch_len

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 →