ST130 | Error E.oU2 – What does it mean and what can be done?
If the error message E.oU2 appears on the ST130 inverter display, it indicates an overvoltage fault during braking of the connected motor.
| Possible cause | Possible solution |
| Braking time too short | Increase braking time (F0.06) |
| External torque accelerates motor | Remove torque |
| Supply voltage too high | Check mains connection |
| High inertia of the load | Increase braking time (F0.06) |