ABB Error 20238 — Delayed Superior Stop due to circuit imbalance

What it means · Ce que ça veut dire

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

The system has detected an imbalance in the two parallel Superior Stop circuits. The system goes to status Guard Stop after approximately 1 sec. 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 Delayed Superior Stop due to circuit imbalance, 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 contact pair in any of the safety devices connected to the Superior Stop circuit are not working correctly.
• Isolate the safety device causing the conflict.
• Make sure the device used is a two-channel device.
• Check the contact pair.
• Make sure all connections are tight.

Frequently asked · Questions fréquentes

What does ABB error 20238 mean?

ABB 20238 (“Delayed Superior Stop due to circuit imbalance”): Delayed Superior Stop due to circuit imbalance — ABB robot hardware event on the Delayed Superior Stop due to circuit imbalance (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains…

How do you troubleshoot ABB error 20238?

Inspect the Delayed Superior Stop due to circuit imbalance, 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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