Operation Mode
ASDA-A3
6-22
Revision December, 2017
6
6.3.7
Resonance Suppression unit
When resonance occurs, it is probably because the stiffness of the control system is too high or
the response is too fast. Eliminating these two factors can improve the situation. In addition, you
can use the low-pass filter (parameter P2.025) and Notch filter (parameters P2.023, P2.024,
P2.043 – P2.046, P2.095 – P2.103) to suppress the resonance if you want the control
parameters to remain unchanged.
Relevant parameters: refer to Chapter 8 for more information.
Parameter
Function
P2.023
Notch filter frequency (1)
P2.024
Notch filter attenuation level (1)
P2.043
Notch filter frequency (2)
P2.044
Notch filter attenuation level (2)
P2.045
Notch filter frequency (3)
P2.046
Notch filter attenuation level (3)
P2.095
Notch filter bandwidth (1)
P2.096
Notch filter bandwidth (2)
P2.097
Notch filter bandwidth (3)
P2.098
Notch filter frequency (4)
P2.099
Notch filter attenuation level (4)
P2.100
Notch filter bandwidth (4)
P2.101
Notch filter frequency (5)
P2.102
Notch filter attenuation level (5)
P2.103
Notch filter bandwidth (5)
P2.025
Resonance suppression low-pass filter
Differentiator
Feed forward
gain
P2.007
PI controller
P2.004, P2.006
Low-pass filter
P2.025
Notch filter 2
P2.043, P2.044
Notch filter 3
P2.045, P2.046
Auto resonance suppression switch and detection level setting
P2.047, P2.048
Current
controller
PWM
Current
sensor
Motor
Encoder
Speed estimator
Speed control unit
Notch filter 1
P2.023, P2.024
Notch filter 4
P2.098, P2.099
Notch filter 5
P2.101, P2.102
Summary of Contents for ASD-A3-0121
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