ABB Error 71571 — Transfer signal I/O queue overload

What it means · Ce que ça veut dire

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

The I/O queue handling transfer signal changes has been overloaded. The system will go to status SYS STOP. 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 Transfer signal I/O queue overload, 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.
• probable : This is caused by too frequent signal changes or too large bursts of input bit changes, generated by inputs on I/O devices.
• Check the transfer definitions on I/O signals.
• Signal definitions are described in the manual for the system parameters.
• Check the frequency of inputs from any external equipment connected to the system.
• Make sure it is not abnormal, and change if required.

Frequently asked · Questions fréquentes

What does ABB error 71571 mean?

ABB 71571 (“Transfer signal I/O queue overload”): Transfer signal I/O queue overload — ABB robot hardware event on the Transfer signal I/O queue overload (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 71571?

Inspect the Transfer signal I/O queue overload, 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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