FATEK SD3 Series, Instruction Manual, Page: 334 / 396

42
t
T [s]
N
F = N/T [Hz]
F [Hz]
0 dB
-3 dB
0 dB
-3 dB
No.168.0
No.171.0
No.168.0
No.171.0
[Hz]
No.169.0
No.172.0
[-]
No.170.0
No.173.0
SD3 Series Instruction Manual
7. Tuning
3. Tuning Parameters
Function
This filter is effective in suppressing noise and vibrations by removing vibration factors
from the torque command�
Parameter
Notch filter Filter Filter 2
Switch
Default:
0
No�160�1 No�160�3
Settings:
0, 1
Frequency
Default:
2,500 Hz
No�168�0 No�171�0
Setting range:
0 to 2,500
Width
Default:
8
No�169�0 No�172�0
Setting range:
1 to 16
Depth
Default:
0
No�170�0 No�173�0
Setting range:
0 to 256
Remark
Set this item only after the machinery is installed properly� Unless the equipment is installed
correctly, the filter performance will be suboptimal�
Tuning Tip
Set Notch filter switch (No�160�1) =1(enable) and set the value of Notch filter frequency
(No�168�0) to be a vibration frequency� Calculate the vibration frequency using the waveform
of, for example, the torque command when vibration is occurring�
In the case of multiple vibration frequencies, set the second level notch filter�
Alternatively, use this filter together with the low-pass filter (No�160�0, No�160�2, No�162�0)
or increase Notch filter - Width (No�169�0)� If applying the notch filter cannot stop
resonant vibrations due to considerable machinery rattles, increase Notch filter- Depth
(No�170�0) to 50,100,150 and so on, so that the actual notch depth will be shallower�
5 Setting Parameters List of Parameters
Torque Command Filter: Notch Filter
Gain [dB]
Torque Command Value
Gain [dB]
Width
Frequency
Frequency
[times]
Vibration frequency
Vibration frequency
Depth