ABB Error 20535 — Emergency Stop Reset conflict

What it means · Ce que ça veut dire

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

Only one of the two Emergency Stop chains was opened after relays. The system goes to status SYS HALT. 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 Emergency Stop Reset conflict, 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 : Any of the switches connected to the Emergency Stop chain may be faulty or not correctly connected, causing only one channel to close.
• The Emergency Stop chain is described in the Trouble Shooting Manual, IRC5.

Frequently asked · Questions fréquentes

What does ABB error 20535 mean?

ABB 20535 (“Emergency Stop Reset conflict”): Emergency Stop Reset conflict — ABB robot hardware event on the Emergency Stop Reset conflict (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 20535?

Inspect the Emergency Stop Reset conflict, 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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