ABB Error 71404 — Invalid input/output size

What it means · Ce que ça veut dire

Invalid input/output size — ABB robot hardware event on the Invalid input/output size (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

The I/O device arg has an invalid value (zero) for the input or output size. 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 Invalid input/output size, 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.
• Change the input/output size to a value greater value than zero.

Frequently asked · Questions fréquentes

What does ABB error 71404 mean?

ABB 71404 (“Invalid input/output size”): Invalid input/output size — ABB robot hardware event on the Invalid input/output size (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 71404?

Inspect the Invalid input/output size, 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.

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