ABB Error 90479 — SC arg Additional Axis missing

What it means · Ce que ça veut dire

SC arg Additional Axis missing — ABB robot hardware event on the SC arg Additional Axis missing (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

An additional axis that is supervised by Safety Controller (SC) arg is no longer present in the system configuration. 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 SC arg Additional Axis missing, 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.
• Reinstall the supervised additional axis, or download a safety configuration without supervision of the additional axis.

Frequently asked · Questions fréquentes

What does ABB error 90479 mean?

ABB 90479 (“SC arg Additional Axis missing”): SC arg Additional Axis missing — ABB robot hardware event on the SC arg Additional Axis missing (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 90479?

Inspect the SC arg Additional Axis missing, 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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