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 ACAL-071Invalid joint number.

FANUC ACAL-071 (“Invalid joint number.”): The axis number specified in the DETECT Joint instruction is invalid. First check: Change the axis number to a valid one.

Updated 2026-08-29 · LogrobotLM reference

Description

The axis number specified in the DETECT Joint instruction is invalid.

Remedy · Remède

Change the axis number to a valid one.

Frequently asked · Questions fréquentes

What does FANUC alarm ACAL-071 mean?
FANUC ACAL-071 (“Invalid joint number.”): The axis number specified in the DETECT Joint instruction is invalid.
How do you troubleshoot FANUC alarm ACAL-071?
Change the axis number to a valid one.

Related codes / Codes liés

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 →