MICNO filter is an HMI filter for inverter used to eliminate interfering noise, filtering the input or output to obtain a pure power supply.

The PLC filter can effectively filter out frequencies at a particular frequency or frequencies outside of that frequency.

What is a filter for inverter?

The filter for inverter is used to limit the rate of rising of the inverter output voltage and reduce common mode noise to the motor. In typical applications where DV/DT is limited to 100-500 V//spl mu/s, the resonance frequency of the filter is higher than the switching frequency.