ABB Error 39473 — All Incoming Mains Phases Missing

What it means · Ce que ça veut dire

All Incoming Mains Phases Missing — ABB robot hardware event on the All Incoming Mains Phases Missing (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

The rectifier connected to communication link arg in drive module arg detects a power loss in one or more phases. No operation will be possible until after correcting the fault. The system goes to status SYS HALT. 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 All Incoming Mains Phases Missing, 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 : This may be caused by an actual mains power loss, some malfunction in the Motors ON contactors or its cabling or in another part of the three phase chain inside the cabinet.
• On rare occasions, this fault may occur in combination with other faults, in which case this may be found in the error log.
• Make sure the mains switch is closed and that there is mains voltage present.
• No volts means the problem is in mains cable connector or the factory power supply.
• If the voltage is OK, disconnect the input mains cable and measure the resistance of all three phases across all the components in the 3 phase supply chain.

Frequently asked · Questions fréquentes

What does ABB error 39473 mean?

ABB 39473 (“All Incoming Mains Phases Missing”): All Incoming Mains Phases Missing — ABB robot hardware event on the All Incoming Mains Phases Missing (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 39473?

Inspect the All Incoming Mains Phases Missing, 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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