ABB Error 90776 — Configuration Signature Mismatch

What it means · Ce que ça veut dire

Configuration Signature Mismatch — ABB robot hardware event on the Configuration Signature Mismatch (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

The Configuration Signature parameter received from an external CIP Safety Scanner in the Forward Open request does not match value in the CIP Safety Adapter of this robot controller. The signature is created in the ABB Safety Configuration Report and consist of ID, Date and Time. CIP Safety Communication with the external Scanner is not possible. 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 Configuration Signature Mismatch, 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 : The external Safety Scanner has a signature configured but - 1 it did not match the value in the ABB Safety Configuration Report of the CIP Safety Adapter or - 2 the Adapter configured the signature to "Not Used".
• Verify that the external Scanner has all parts of the Configuration Signature (ID, date and time) according to the ABB Safety Configuration Report of the Adapter.
• If you wish to disable the signature matching while opening a safety connection, then set the Configuration Signature parameter to "Not Used" in the Adapter and disable it in the external Scanner as well.

Frequently asked · Questions fréquentes

What does ABB error 90776 mean?

ABB 90776 (“Configuration Signature Mismatch”): Configuration Signature Mismatch — ABB robot hardware event on the Configuration Signature Mismatch (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 90776?

Inspect the Configuration Signature Mismatch, 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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