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ABB Error 20569Watchdog fault on MCB

Error / Erreur

🇫🇷 Watchdog fault on MCB

ABB — CATALOGUE PRODUCTION

ABB 20569 (“Watchdog fault on MCB”): Watchdog fault on MCB — ABB robot hardware event on the Watchdog fault on MCB (IRC5).

Updated 2026-08-29 · LogrobotLM reference

What it means · Ce que ça veut dire

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

Status active when watchdog on Manipulator Control Board (MCB) arg fails. The system goes to system halt 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 Watchdog fault on MCB, 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.

Frequently asked · Questions fréquentes

What does ABB error 20569 mean?
ABB 20569 (“Watchdog fault on MCB”): Watchdog fault on MCB — ABB robot hardware event on the Watchdog fault on MCB (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 20569?
Inspect the Watchdog fault on MCB, 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

Indicative field information — the robot manufacturer's manual and safety procedures always prevail. Never bypass a safety device; apply lockout/tagout (LOTO) before any physical intervention. · Informations indicatives issues du terrain — le manuel du constructeur et ses procédures de sécurité font foi. Ne shuntez jamais un organe de sécurité ; consignez (LOTO) avant toute intervention physique. How this reference is built →