ABB Error 34277 — Brake supply error

What it means · Ce que ça veut dire

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

In drive module arg , the output brake supply is malfunctional for the rectifier unit at drive unit position arg . No operation will be possible until the fault is corrected. The system goes to Motors Off 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 Brake supply error, 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 : - 1 Brake supply cabling to the signal exchange proxy is faulty .
• Check 24V brake supply cabling .
• Disconnect the Signal Exchange Proxy and try isolating the problem to a unit.
• If the problem remains then replace either Signal exchange proxy or the rectifier unit.

Frequently asked · Questions fréquentes

What does ABB error 34277 mean?

ABB 34277 (“Brake supply error”): Brake supply error — ABB robot hardware event on the Brake supply error (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 34277?

Inspect the Brake supply error, 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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