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-278 — DCS File is lost

FANUC SYST-278 (“DCS File is lost”): By power failure, safety parameter file is lost. First check: Please apply, verify and cycle power

Updated 2026-08-29 · LogrobotLM reference

Description

By power failure, safety parameter file is lost.

Remedy · Remède

Please apply, verify and cycle power

Frequently asked · Questions fréquentes

What does FANUC alarm SYST-278 mean?
FANUC SYST-278 (“DCS File is lost”): By power failure, safety parameter file is lost.
How do you troubleshoot FANUC alarm SYST-278?
Please apply, verify and cycle power

Related codes / Codes liés

SYST-272Lack of USB for savingSYST-277BMON update failedSYST-280Operating panel is Teach mode[P]SYST-281Teaching mode input is ON[P]

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 →