ABB Error 120020 — Debug service reset

What it means · Ce que ça veut dire

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

The debug service ' arg ' for type ' arg ' had an invalid changed value and is reset to default value. The debug service is changed back to default setting. 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 Debug service reset, 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 : An invalid update of the debug service in cfg.
• No action required.

Frequently asked · Questions fréquentes

What does ABB error 120020 mean?

ABB 120020 (“Debug service reset”): Debug service reset — ABB robot hardware event on the Debug service reset (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 120020?

Inspect the Debug service reset, 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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