ABB Error 90542 — Unknown axis in safety configuration
Error / Erreur🇫🇷 Unknown axis in safety configuration
ABB — CATALOGUE PRODUCTION
ABB 90542 (“Unknown axis in safety configuration”): Unknown axis in safety configuration — ABB robot hardware event on the Unknown axis in safety configuration (IRC5).
Updated 2026-08-29 · LogrobotLM reference
What it means · Ce que ça veut dire
Unknown axis in safety configuration — ABB robot hardware event on the Unknown axis in safety configuration (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.
The safety controller configuration for drive module arg contains one or more axes that are not present in the robot controller configuration. The safety controller will prevent all robot movements. Operation is not possible until the error has been corrected. 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 Unknown axis in safety configuration, 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 : One or more axes have been removed from the robot controller configuration.
- Alternatively, one or more axes were temporarily disabled during an upgrade or restart of the system.
- Check the robot controller configuration.
- If one or more mechanical units were temporarily disabled during an upgrade, a new restart with all mechanical units enabled should be sufficient.
Frequently asked · Questions fréquentes
- What does ABB error 90542 mean?
- ABB 90542 (“Unknown axis in safety configuration”): Unknown axis in safety configuration — ABB robot hardware event on the Unknown axis in safety configuration (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 90542?
- Inspect the Unknown axis in safety configuration, 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 →