ABB Error 20401 — Too many CFG instances

What it means · Ce que ça veut dire

Too many CFG instances — ABB robot hardware event on the Too many CFG instances (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

There are too many instances arg of type arg in topic arg . The wrong instance may be used and cause unexpected behavior. 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 Too many CFG instances, 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 : There are multiple instances of argof type arg in topic arg .
• Remove all instances but one.

Frequently asked · Questions fréquentes

What does ABB error 20401 mean?

ABB 20401 (“Too many CFG instances”): Too many CFG instances — ABB robot hardware event on the Too many CFG instances (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 20401?

Inspect the Too many CFG instances, 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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