ABB Error 34274 — DC over voltage error

What it means · Ce que ça veut dire

DC over voltage error — ABB robot hardware event on the DC over voltage 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 DC voltage is too high 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 DC over voltage 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 DC bus in the unit is too high.
• - 2 Faulty or not connected bleeder resistor.
• Check that the right rectifier configuration is loaded for connected hardware.
• Check the bleeder, its resistance and cabling.
• If the problem remains then replace the unit.

Frequently asked · Questions fréquentes

What does ABB error 34274 mean?

ABB 34274 (“DC over voltage error”): DC over voltage error — ABB robot hardware event on the DC over voltage 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 34274?

Inspect the DC over voltage 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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