Nidec Control Techniques Digitax-SF DA21223, Инструкция по эксплуатации

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40
0 dB
[dB]
76.0
85.0
359.0
[-]
79.0
86.0
360.0
T [s]
N
F = N/T [Hz]
74.0
83.0
357.0
F [Hz]
74.0
83.0
357.0
Digitax SF
Instruction Ma
nual
7. Tuning
3. Tuning Parameters
Function
Use this filter, if the machine end point is still vibrating even after applying a notch filter
in addition to sufficient tuning and a smoothing filter�
This filter has vibration suppression effect on mechanical systems where the vibrations
don’t appear in the torque output waveform� It has flexibility of changing the gain setting
in a range higher than notch frequency�
Use this filter when it's expected that using a notch filter will reduce the position
error
�
Remark
Increasing the high frequency gain too much may result in noise�
Decreasing the high frequency gain too much will tend to cause position error
trip.
Set this filter within the acceptable range�
Tuning Tip
Check the following before applying the filter
・The command from the host controller is reasonable
・The equipment is installed firmly and properly�
・The gain parameters such as inertia ratio are properly set�
・The command smoothing filter 2 and 1 are set�
・The integral gain has been decreased and vibrations are unlikely to occur�
error,
Start the equipment operation and apply the vibration frequency (measured
at the equipment end) to the notch frequency� To reduce the position
gradually increase the high frequency gain setting�
To reduce the position
error
during operation, increase the
notch
depth .
5 Setting List of Parameters
Position Command γ-Notch Filter
High Frequency Gain
t
Position
error
is low
very effective in suppressing vibration
Torque Command Value
or
ABS Position
Error
Gain [dB]
Depth
[times]
Vibration frequency
Vibration frequency