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-042 — PAUSE DEADMAN defeated

FANUC SYST-042 (“PAUSE DEADMAN defeated”): The mode switch was changed from T1 or T2 mode to AUTO mode and the DEADMAN was already pressed. First check: Release the DEADMAN and press RESET.

Updated 2026-08-29 · LogrobotLM reference

Description

The mode switch was changed from T1 or T2 mode to AUTO mode and the DEADMAN was already pressed. The DEADMAN must be released when switching to AUTO mode

Remedy · Remède

Release the DEADMAN and press RESET.

Frequently asked · Questions fréquentes

What does FANUC alarm SYST-042 mean?
FANUC SYST-042 (“PAUSE DEADMAN defeated”): The mode switch was changed from T1 or T2 mode to AUTO mode and the DEADMAN was already pressed. The DEADMAN must be released when switching to AUTO mode
How do you troubleshoot FANUC alarm SYST-042?
Release the DEADMAN and press RESET.

Related codes / Codes liés

SYST-040PAUSE Operation mode AUTO SelectedSYST-041PAUSE Ovrd Select could not ENABLEDSYST-043PAUSE TP disabled in T1/T2 modeSYST-044SYSTEM (Abnormal) TP disabled in T1/T2 mode

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 →