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 THSR-031 — WARN Illegal register number

FANUC THSR-031 (“WARN Illegal register number”): The input register number is illegal, and it is reset by the software to the maximum available number. First check: Check the input data.

Updated 2026-08-29 · LogrobotLM reference

Description

The input register number is illegal, and it is reset by the software to the maximum available number.

Remedy · Remède

Check the input data.

Frequently asked · Questions fréquentes

What does FANUC alarm THSR-031 mean?
FANUC THSR-031 (“WARN Illegal register number”): The input register number is illegal, and it is reset by the software to the maximum available number.
How do you troubleshoot FANUC alarm THSR-031?
Check the input data.

Related codes / Codes liés

THSR-029WARN No contact warningTHSR-030STOP Contact before searchTHSR-032PAUSE Position type mismatchTHSR-033PAUSE Not enough points

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 →