ABB Error 134421 — Bypass DSF error.
Error / Erreur🇫🇷 Bypass DSF error.
ABB — CATALOGUE PRODUCTION
ABB 134421 (“Bypass DSF error.”): Bypass DSF error.
Updated 2026-08-29 · LogrobotLM reference
What it means · Ce que ça veut dire
Bypass DSF error. — ABB robot hardware event on the Bypass DSF error. (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.
Not allowed to run system with both DSF sensors disabled. 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 Bypass DSF error., 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.
- Enable one of the sensors.
Frequently asked · Questions fréquentes
- What does ABB error 134421 mean?
- ABB 134421 (“Bypass DSF error.”): Bypass DSF error. — ABB robot hardware event on the Bypass DSF error. (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 134421?
- Inspect the Bypass DSF error., 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 →