ABB Error 90506 — Safety Controller Wrong Sync Position
Error / Erreur🇫🇷 Safety Controller Wrong Sync Position
ABB — CATALOGUE PRODUCTION
ABB 90506 (“Safety Controller Wrong Sync Position”): Safety Controller Wrong Sync Position — ABB robot hardware event on the Safety Controller Wrong Sync Position (IRC5).
Updated 2026-08-29 · LogrobotLM reference
What it means · Ce que ça veut dire
Safety Controller Wrong Sync Position — ABB robot hardware event on the Safety Controller Wrong Sync Position (IRC5). Specific to this controller generation. Severity: Major. Field diagnosis below (French); your robot's own manual remains authoritative.
The axis arg position does not match its synchronization position, as defined in the safety configuration for the safety controller on drive module arg . Synchronization will not be performed, and the safety controller will go to the unsynchronized 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 Safety Controller Wrong Sync Position, 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 are not in the correct synchronization position.
- - The revolution counters or calibration values of the robot controller are not correct.
- - Check that the synchronization positions in the safety configuration are correct, and that all axes are in their synchronization position.
- - Perform revolution counter update or calibration in the correct position, followed by a new synchronization of the safety controller.
- - Check that the synchronization switch is working properly.
Frequently asked · Questions fréquentes
- What does ABB error 90506 mean?
- ABB 90506 (“Safety Controller Wrong Sync Position”): Safety Controller Wrong Sync Position — ABB robot hardware event on the Safety Controller Wrong Sync Position (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 90506?
- Inspect the Safety Controller Wrong Sync Position, 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 →