ABB Error 90890 — Start of Safety Controller failed

What it means · Ce que ça veut dire

Start of Safety Controller failed — ABB robot hardware event on the Start of Safety Controller failed (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

The main computer could not start the safety controller. See the event log for more details. No operation will be possible until the fault has been corrected and the system has been restarted. 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 Start of Safety Controller failed, 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 : This may be caused by faulty hardware or incompatible safety controller software version.
• Reinstall system.
• Make sure the safety controller board is properly mounted.
• Restart the system and check if the error remains.

Frequently asked · Questions fréquentes

What does ABB error 90890 mean?

ABB 90890 (“Start of Safety Controller failed”): Start of Safety Controller failed — ABB robot hardware event on the Start of Safety Controller failed (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 90890?

Inspect the Start of Safety Controller failed, 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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