LogrobotLM

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 FRCE-444 — Illegal user frame(B/D) (F:%d^1)

FANUC FRCE-444 (“Illegal user frame(B/D) (F:%d^1)”): An internal error has occurred. First check: Document the events that led to the error, record the error status, and contact your FANUC or FANUC Robotics technical representative.

Updated 2026-08-29 · LogrobotLM reference

Description

An internal error has occurred.

Remedy · Remède

Document the events that led to the error, record the error status, and contact your FANUC or FANUC Robotics technical representative.

Frequently asked · Questions fréquentes

What does FANUC alarm FRCE-444 mean?
FANUC FRCE-444 (“Illegal user frame(B/D) (F:%d^1)”): An internal error has occurred.
How do you troubleshoot FANUC alarm FRCE-444?
Document the events that led to the error, record the error status, and contact your FANUC or FANUC Robotics technical representative.

Related codes / Codes liés

FRCE-427Search reverse SW invalid (F:%d^1)FRCE-428Search velocity MAX error (F:%d^1)FRCE-445Illegal tool frame(B/D) (F:%d^1)FRCE-446Too much B/D number (F:%d^1)

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 →