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5-22 Notch Filter
Operating Functions
5
5-22 Notch Filter
Function
Two notch filters can be set for torque commands.
When resonance occurs at a ball screw or a specific location, set the resonance frequency to
eliminate the resonance.
Parameters Requiring Settings
Notch filter width settings and depths
Notch filter depths and attenuation
Parameter
No.
Parameter name Explanation Reference page
Pn01D
Notch Filter 1
Frequency
Sets the frequency of notch filter 1.
Enabled from 100 to 1499 Hz, disabled at 1500 Hz.
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Pn01E Notch Filter 1 Width
Selects the width of the frequency of notch filter 1.
The notch width becomes wider by increasing this value.
(Setting range: 0 to 4, normally use a setting of 2.)
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Pn028
Notch Filter 2
Frequency
Sets the frequency of notch filter 2.
Enabled from 100 to 1499 Hz, disabled at 1500 Hz.
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Pn029 Notch Filter 2 Width
Selects the width of the frequency of notch filter 2.
The notch width becomes wider by increasing this value.
(Setting range: 0 to 4, normally use a setting of 2.)
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Pn02A
Notch Filter 2
Depth
Selects the depth of the frequency of notch filter 2.
Increasing this value decreases the notch depth and
reduces the phase lag.
(Setting range: 0 to 99, normally use a setting of 2.)
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Setting Depth = Fc/fw Width at 500 Hz
00.41408 to 613 Hz
10.56380 to 659 Hz
2 0.71 354 to 707 Hz
30.86 330 to 758 Hz
41.01308 to 811 Hz
Depth Output/Input (%)
0 0 (cut-off)
30 15% (16.5 db)
50 50% (6 db)
99 99% (pass through)
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