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ABB Error 20507 — Hardware chain open

Error / Erreur

🇫🇷 Hardware chain open

ABB — CATALOGUE PRODUCTION

ABB 20507 (“Hardware chain open”): Hardware chain open — ABB robot hardware event on the Hardware chain open (IRC5).

Updated 2026-08-29 · LogrobotLM reference

What it means · Ce que ça veut dire

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

Relays (KA16 and KA17) on Safety Interface Board (SIB) not activated. Motor on command rejected. 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 Hardware chain open, 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.
  • Press motor ON button to close the chain.

Frequently asked · Questions fréquentes

What does ABB error 20507 mean?
ABB 20507 (“Hardware chain open”): Hardware chain open — ABB robot hardware event on the Hardware chain open (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 20507?
Inspect the Hardware chain open, 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

10005Program stopped10007Programme lancé10008Programme relancé

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 →