ABB Error 50391 — Cartesian Soft Servo movement not allowed

What it means · Ce que ça veut dire

Cartesian Soft Servo movement not allowed — ABB robot hardware event on the boardsian Soft Servo movement not allowed (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

Jogging or a programmed movement has been detected. The ordered movement is ignored. 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 boardsian Soft Servo movement not allowed, 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.
• Movement during Cartesian Soft Servo is only allowed if the switch AllowMove has been used in the CSSAct instruction.

Frequently asked · Questions fréquentes

What does ABB error 50391 mean?

ABB 50391 (“Cartesian Soft Servo movement not allowed”): Cartesian Soft Servo movement not allowed — ABB robot hardware event on the boardsian Soft Servo movement not allowed (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 50391?

Inspect the boardsian Soft Servo movement not allowed, 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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