(VFD, PLC, HMI) Filter

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.


Working Principle of VFD HMI Filter
HMI controls are connected with filters in the standard data-flow way: through
input and output ports.

There are three possible ways of VFD HMI filter connection:

From a filter's output to a control's input – e.g. for displaying an image or
a text result.

From a control's output to a filter's input, as data sources – e.g. for
setting various parameters in a program with track-bars or check-boxes.

From a control's output to a filter's input, as events – e.g. for signaling
that a button has been clicked.

Shenzhen MICNO Electric Co., Ltd. is one of human machine interface
manufacturers. We provide Servo System, Spare Parts, vfd load filter, inverter
lc filter, plc blocking filter, inverter output filter, lc filter for inverter,
vfd output filter and so on. Want to know more? Please contact us.

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