ABB Error 39450 — Faulty Fan Unit Power Supply

What it means · Ce que ça veut dire

Faulty Fan Unit Power Supply — ABB robot hardware event on the Faulty Fan Unit Power Supply (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

The power supply for the fan unit in drive module arg is not within its allowed voltage limits. - 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 Faulty Fan Unit Power Supply, 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 main fan power supply unit may be faulty or the supply to this power supply unit may not be within its allowed voltage limits.
• - 1) Check the fan cable is correctly inserted.
• 2) Check that all fans are working.
• 3) Check the input voltage to the main fan power supply unit.
• Replace any faulty unit.

Frequently asked · Questions fréquentes

What does ABB error 39450 mean?

ABB 39450 (“Faulty Fan Unit Power Supply”): Faulty Fan Unit Power Supply — ABB robot hardware event on the Faulty Fan Unit Power Supply (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 39450?

Inspect the Faulty Fan Unit Power Supply, 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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