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User Manual - CNC4PC

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5-3-9 Notch Filter<br />

The function of the Notch filter is to suppress mechanical system resonance.<br />

Resonance occurs due to low mechanical system rigidity (high springiness) of transmission systems used<br />

with servo motors such as couplings, bearings, lead screws, etc.<br />

Enter the mechanical system vibration (resonance frequency) in parameter Cn013 (Notch Filter frequency)<br />

and adjust Cn014 to set the filter bandwidth scaling factor.<br />

Lower the setting of Cn014 value, wider is the notch filter frequency bandwidth. The adjustment required<br />

depends on the application.<br />

Caution!<br />

If Cn013 is set to “0” the Notch filter is disabled.<br />

Parameter<br />

Name<br />

Defaul<br />

t<br />

Unit Setting range Control mode<br />

Cn013 Notch Filter frequency 0 Hz 0~1000 Pi/Pe/S<br />

Cn014<br />

Notch Filter Band Width<br />

Scaling factor<br />

7 X 1~100 Pi/Pe/S<br />

5-19

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