ABB Error 41638 — Not allowed task activation

What it means · Ce que ça veut dire

Not allowed task activation — ABB robot hardware event on the Not allowed task activation (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

Task: arg The task arg is active in the task selection panel. This task was not active in the task selection panel when start from main was done. It is not allowed to add tasks in the task selection panel after start from main. Program Ref. arg The program execution is immediately stopped. 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 Not allowed task activation, 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 : - 1) The task arg was not active when start from main was done.
• - 2) Deactivation of task arg with service routine arg, but not deactivating the task in the task selection panel.
• - 3) Activation of task arg that earlier was deactivated in task selection panel and deactivated with service routine arg .
• Move PP to main to reset tasks used at start from main.
• Then use the task selection panel to select which tasks that you want to execute.

Frequently asked · Questions fréquentes

What does ABB error 41638 mean?

ABB 41638 (“Not allowed task activation”): Not allowed task activation — ABB robot hardware event on the Not allowed task activation (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 41638?

Inspect the Not allowed task activation, 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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