Panasonic MINAS A6 Series, Technical Reference

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Auto Tuning Functions
5-36
5.2.6 Notch filter
In case of low machine stiffness, you cannot set up a higher gain because vibration and noise occur due
to oscillation caused by axis distortion or other causes. By suppressing the resonance peak at the notch
filter, higher gain can be obtained or the level of vibration can be lowered.
Relevant parameters
MINAS A6 Multi series feature 5 normal notch filters. You can adjust frequency and width and depth.

Relevant parameters
Class No. Attribute Title Range Unit Function
2 01 B 1st notch frequency 50 to
5000
Hz Set the center frequency of the 1st notch filter.
The notch filter function will be invalidated by setting up this
parameter to “5000”.
2 02 B 1st notch width
selection 0 to 20 - Set the width of notch at the center frequency of the 1st
notch filter.
2 03 B 1st notch depth
selection 0 to 99 - Set the depth of notch at the center frequency of the 1st
notch filter.
2 04 B 2nd notch
frequency 50 to
5000 Hz Set the center frequency of the 2nd notch filter.
The notch filter function will be invalidated by setting up this
parameter to “5000”.
2 05 B 2nd notch width
selection 0 to 20 - Set the width of notch at the center frequency of the 2nd
notch filter.
2 06 B 2nd notch depth
selection 0 to 99 - Set the depth of notch at the center frequency of the 2nd
notch filter.
2 07 B 3rd notch frequency
(Note 1)
50 to
5000 Hz Set the center frequency of the 3rd notch filter.
The notch filter function will be invalidated by setting up this
parameter to “5000”.
2 08 B 3rd notch width
selection
(Note 1)
0 to 20 - Set the width of notch at the center frequency of the 3rd
notch filter.
2 09 B 3rd notch depth
selection
(Note 1)
0 to 99 - Set the depth of notch at the center frequency of the 3rd
notch filter.
2 10 B 4th notch frequency
(Note 1)
50 to
5000 Hz Set the center frequency of the 4th notch filter.
The notch filter function will be invalidated by setting up this
parameter to “5000”.
2 11 B 4th notch width
selection
(Note 1)
0 to 20 - Set the width of notch at the center frequency of the 4th
notch filter.
2 12 B 4th notch depth
selection
(Note 1)
0 to 99 - Set the depth of notch at the center frequency of the 4th
notch filter.
2 24 B 5th notch frequency 50 to
5000
Hz Set the center frequency of the 5th notch filter.
The notch filter function will be invalidated by setting up this
parameter to “5000”.
2 25 B 5th notch width
selection 0 to 20 - Set the width of notch at the center frequency of the 5th
notch filter.
2 26 B 5th notch depth
selection 0 to 99 - Set the depth of notch at the center frequency of the 5th
notch filter.
(Note 1) When the applicable filtering function is used, parameter value is automatically set.
How to use
Determine the resonant frequency by using the frequency response measurement function of the setup
support software, resonant frequency monitor or waveform graphics function and set it to the notch
frequency.