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.

ABB Error 71164Internal I/O signal in cross connection

Error / Erreur

🇫🇷 Internal I/O signal in cross connection

ABB — CATALOGUE PRODUCTION

ABB 71164 (“Internal I/O signal in cross connection”): Internal I/O signal in cross connection — ABB robot hardware event on the Internal I/O signal in cross connection (IRC5).

Updated 2026-08-29 · LogrobotLM reference

What it means · Ce que ça veut dire

Internal I/O signal in cross connection — ABB robot hardware event on the Internal I/O signal in cross connection (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

The I/O configuration of cross connection arg is invalid. The Actor arg arg is a user-defined I/O signal whereas the resultant I/O signal arg is an internal I/O signal. It is not allowed to define cross connections where user-defined I/O signals affect internal I/O signals. The cross connection has been rejected, and no functions depending on it will work. Le texte constructeur de ce code n'existe qu'en anglais dans les manuels ABB dont il provient. Il est reproduit tel quel ci-dessus ; le manuel de votre robot fait foi.

What to check · Que vérifier

  • Inspect the Internal I/O signal in cross connection, its wiring and connections first.
  • Match this code against your robot's event-log timeline before swapping parts.
  • Follow the French field checks below — they are the tested sequence for this fault.
  • Correct the cross connection so that there are no internal I/O signals in the resultant expression.

Frequently asked · Questions fréquentes

What does ABB error 71164 mean?
ABB 71164 (“Internal I/O signal in cross connection”): Internal I/O signal in cross connection — ABB robot hardware event on the Internal I/O signal in cross connection (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.
How do you troubleshoot ABB error 71164?
Inspect the Internal I/O signal in cross connection, its wiring and connections first. Match this code against your robot's event-log timeline before swapping parts. Follow the French field checks below — they are the tested sequence for this fault.

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 →