ABB Error 50398 — Circle begins with a frame change

What it means · Ce que ça veut dire

Circle begins with a frame change — ABB robot hardware event on the Circle begins with a frame change (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

Task: arg . When having the Absolute Accuracy or Conveyor option, MoveC instructions that are coordinated to another mechanical unit must use the same tool and work object as the previous move instruction. The robot will 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 Circle begins with a frame change, 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 move instruction before arg so that they both use the same frames.
• Alternatively, add a (redundant) MoveL to the start point of the circle arc, using the same frames as the MoveC instruction.

Frequently asked · Questions fréquentes

What does ABB error 50398 mean?

ABB 50398 (“Circle begins with a frame change”): Circle begins with a frame change — ABB robot hardware event on the Circle begins with a frame change (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 50398?

Inspect the Circle begins with a frame change, 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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