ABB Error 90541 — Superior stop opened by the Safety Controller
ErrorABB 90541 (“Superior stop opened by the Safety Controller”): Superior stop opened by the Safety Controller: a superior stop has been triggered by the safety controller, either because a supervision function detects an active violation, or because of a safety controller wiring fault. Likely part: Safety Controller (SafeMove) / Câblage sécurité (Safety Controller (SafeMove) / Câblage safety).
Updated 2026-10-22 · LogrobotLM reference
What it means
Superior stop opened by the Safety Controller: a superior stop has been triggered by the safety controller, either because a supervision function detects an active violation, or because of a safety controller wiring fault.
What to check
- Read the log to identify the safety function(s) in violation and clear the violation.
- Check the safety controller wiring.
- Check the SafeMove configuration if the error systematically reappears at each cabinet restart.
- Note: Specific to cabinets equipped with SafeMove / Safety Controller. Not present on S4 generations.
Part to check / replace
ABB 90541 points to the hardware below — start here before ordering.
Tap a part for every code that points to it — and verify the exact variant for your controller before ordering.
Related codes
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. How this reference is built →