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 CPMO-091 — Invalid JBF MainChn ID (G: %d)

FANUC CPMO-091 (“Invalid JBF MainChn ID (G: %d)”): Internal Error: JBF Main Channel Id is invalid First check: Press RESET.

Updated 2026-08-29 · LogrobotLM reference

Description

Internal Error: JBF Main Channel Id is invalid

Remedy · Remède

Press RESET. If the error is not cleared, document the events that led to the error and call your FANUC or FANUC Robotics technical representative.

Frequently asked · Questions fréquentes

What does FANUC alarm CPMO-091 mean?
FANUC CPMO-091 (“Invalid JBF MainChn ID (G: %d)”): Internal Error: JBF Main Channel Id is invalid
How do you troubleshoot FANUC alarm CPMO-091?
Press RESET. If the error is not cleared, document the events that led to the error and call your FANUC or FANUC Robotics technical representative.

Related codes / Codes liés

CPMO-087EXT pt.valid.ext=0 (G:%d^2)CPMO-090Invalid MainChn ID (G: %d^2)CPMO-092JF NewLastAng Mismatch (G: %d^2)CPMO-093JB NewLastAng Mismatch (G: %d^2)

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 →