ABB Error 20487 — SC arg Unsynchronized speed exceeded

What it means · Ce que ça veut dire

SC arg Unsynchronized speed exceeded — ABB robot hardware event on the SC arg Unsynchronized speed exceeded (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.

Exceeded axis speed when Safety Controller (SC) arg was unsynchronized. 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 SC arg Unsynchronized speed exceeded, 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.
• Jog mechanical unit to synch position with low axis speed.
• Reduce speed to 250 mm/s or 18 degrees/s.

Frequently asked · Questions fréquentes

What does ABB error 20487 mean?

ABB 20487 (“SC arg Unsynchronized speed exceeded”): SC arg Unsynchronized speed exceeded — ABB robot hardware event on the SC arg Unsynchronized speed exceeded (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 20487?

Inspect the SC arg Unsynchronized speed exceeded, 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.

Related codes / Codes liés