ABB Error 50438 — Motor off sequence has timed out

What it means · Ce que ça veut dire

Motor off sequence has timed out — ABB robot hardware event on the Motor off sequence has timed out (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

The mechanical unit arg has not been able to finish the motor off sequence during configured time. The brake sequence can be ended before the axes standing still. 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 Motor off sequence has timed out, 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.
• If the time to brake axis is longer than the default value of 5 seconds, increase the value by setting the system parameter 'Max Brake Time' in topic Motion and type Brake to a higher value.
• Restart the controller.
• Try again.

Frequently asked · Questions fréquentes

What does ABB error 50438 mean?

ABB 50438 (“Motor off sequence has timed out”): Motor off sequence has timed out — ABB robot hardware event on the Motor off sequence has timed out (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 50438?

Inspect the Motor off sequence has timed out, 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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