ABB Error 20506 — Test Stop open

What it means · Ce que ça veut dire

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

The Test Mode Safeguarded Stop circuit has been broken. The system goes to system halt state. 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 Test Stop open, 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 : One or more of the switch connected in series with the Test Mode Safeguarded Stop circuit have been opened, which may be causes by a large number of faults.
• This is only possible while in the Manual operational mode.
• Locate the switch, reset it and restart the controller.
• Check cables and connections.

Frequently asked · Questions fréquentes

What does ABB error 20506 mean?

ABB 20506 (“Test Stop open”): Test Stop open — ABB robot hardware event on the Test Stop open (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 20506?

Inspect the Test Stop open, 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.

Related codes / Codes liés