ST500 | Err.11, what does this message mean and what can you do?

If the error message Err.11 appears on the frequency inverter display, it indicates an overload at the motor.

Causes:

  • This message may occur due to insufficient mains voltage, an incorrect setting in the motor protection parameter (F8.03), too high a load on the motor, or the motor being blocked.

Solutions:

  • Check the mains voltage and ensure adequate supply to the inverter.
  • Check the motor protection parameter F8.03.
  • Reduce the load on the motor and check the motor for technical defects.
  • Check the motor wiring, especially if the star/delta configuration matches the selected voltage.
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