FANUC Alarm ARC-126 — Bad 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 2026-09-17 · 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
Modify the stitch weld length or pitch length. $aweupr[eq].$st_weld_len or $aweupr[eq].$st_ptch_len
Related codes
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. How this reference is built →