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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 IBSS-300 — %s:Bus error

FANUC IBSS-300 (“%s:Bus error”): Please see manual IBS SYS FW G4 UM E from Phoenix Contact

Updated 2026-08-29 · LogrobotLM reference

Remedy · Remède

Please see manual IBS SYS FW G4 UM E from Phoenix Contact

Frequently asked · Questions fréquentes

What does FANUC alarm IBSS-300 mean?
FANUC IBSS-300 (“%s:Bus error”): Please see manual IBS SYS FW G4 UM E from Phoenix Contact
How do you troubleshoot FANUC alarm IBSS-300?
Please see manual IBS SYS FW G4 UM E from Phoenix Contact

Related codes / Codes liés

IBSS-263InterBus has no I/O assignmentIBSS-264Set system pointer failedIBSS-301%s:Max. number was exceededIBSS-302%s:Too many faulty data cycle

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 →