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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 PRIO-127 — WARN PMC file load error

FANUC PRIO-127 (“WARN PMC file load error”): PMC program format is incorrect. First check: Download PMC program again.

Updated 2026-08-29 · LogrobotLM reference

Description

PMC program format is incorrect.

Remedy · Remède

Download PMC program again.

Frequently asked · Questions fréquentes

What does FANUC alarm PRIO-127 mean?
FANUC PRIO-127 (“WARN PMC file load error”): PMC program format is incorrect.
How do you troubleshoot FANUC alarm PRIO-127?
Download PMC program again.

Related codes / Codes liés

PRIO-125SYST SLC2 initialization errorPRIO-126WARN No PMC programPRIO-128PAUSE T,C,K and D data may be lostPRIO-129WARN SUB%d is not supported

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 →