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 PALT-139WARN %s :wrist angle correction failed

FANUC PALT-139 (“WARN %s :wrist angle correction failed”): The routine that calculates the final destination position while moving from the current source position has failed. First check: Check that all positions are in range.

Updated 2026-08-29 · LogrobotLM reference

Description

The routine that calculates the final destination position while moving from the current source position has failed. The preceding error should be : 'Error: Infeed=x Pallet=y Unit=x'. This means that the robot was working with infeed x, pallet y and box z when the error occured.

Remedy · Remède

Check that all positions are in range.

Frequently asked · Questions fréquentes

What does FANUC alarm PALT-139 mean?
FANUC PALT-139 (“WARN %s :wrist angle correction failed”): The routine that calculates the final destination position while moving from the current source position has failed. The preceding error should be : 'Error: Infeed=x Pallet=y Unit=x'. This means that the robot was working with infeed x, pallet y and box z…
How do you troubleshoot FANUC alarm PALT-139?
Check that all positions are in range.

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 →