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 SYST-254 — Safe stop input

FANUC SYST-254 (“Safe stop input”): This operation requires no Safe Stop input. First check: Check the status of the Safe Stop input.

Updated 2026-08-29 · LogrobotLM reference

Description

This operation requires no Safe Stop input.

Remedy · Remède

Check the status of the Safe Stop input.

Frequently asked · Questions fréquentes

What does FANUC alarm SYST-254 mean?
FANUC SYST-254 (“Safe stop input”): This operation requires no Safe Stop input.
How do you troubleshoot FANUC alarm SYST-254?
Check the status of the Safe Stop input.

Related codes / Codes liés

SYST-252Teach plug ON inputSYST-253No safe stop inputSYST-255No Teach OK inputSYST-256Servo OFF input

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 →