ST500 | Err.01, what does this message mean and what can be done?
If the error message Err.01 appears on the frequency inverter’s display, it indicates a self-protection function of the inverter.
Causes:
- Short circuit at the inverter’s output
- Motor cable is too long
- Inverter overheating
- Wiring error
- Faulty control panel of the inverter
- Faulty control indicator
- Defective IGBT modules of the inverter
Solutions:
- Check the inverter’s wiring, motor wiring, and sensors
- If the cable is longer than 20 meters, install motor filters and/or motor chokes
- Check the inverter’s ventilation and ensure sufficient spacing (see manual)
- Inspect the inverter’s fans, clean or replace them if necessary
- If none of these issues apply, please contact technical support