Chapter 6 Control Mode of Operation ASDA-A2R Series
6-26 Revision December, 2014
6.3.7 Resonance Suppression
When resonance occurs, it is probably because the stiffness of the control system is too
strong or the response is too fast. Eliminating these two factors might improve the
situation. In addition, low-pass filter (parameter P2-25) and notch filter (parameter P2-23
and P2-24) are provided to suppress the resonance if not changing the control
parameters.
Related parameters: Please refer to Chapter 8 for further information.
Parameter Abbr. Function
P2-23 NCF1 Resonance Suppression (Notch filter) (1)
P2-24 DPH1
Resonance Suppression (Notch filter)
Attenuation Rate (1)
P2-25 NLP Low-pass Filter of Resonance Suppression
P2-43 NCF2 Resonance Suppression (Notch filter) (2)
P2-44 DPH2
Resonance Suppression (Notch filter)
Attenuation Rate (2)
P2-45 NCF3 Resonance Suppression (Notch filter) (3)
P2-46 DPH3
Resonance Suppression (Notch filter)
Attenuation Rate (3)
There are two sets of auto resonance suppression, one is P2-43 and P2-44 and another
one is P2-45 and P2-46. When the resonance occurs, set P2-47 to 1 or 2 (enable the
function of resonance suppression), the servo drive searches the point of resonance
frequency and suppresses the resonance automatically. Write the point of frequency into
P2-43 and P2-45 and write the attenuation rate into P2-44 and P2-46. When P2-47 is set to
1, the system will set P2-47 to 0 (disable the function of auto suppression) automatically
after completing resonance suppression and the system is stable for 20 minutes. When
P2-47 is set to 2, the system will keep searching the point of resonance.
When P2-47 is set to 1 or 2, but resonance still exists, please confirm the value of
parameter P2-44 and P2-46. If one of them is 32, it is suggested to reduce the speed
bandwidth first and then start to estimate again. If the value of both is smaller than 32 and
resonance still exists, please set P2-47 to 0 first and then manually increase the value of
To Next Page
Loading...
Need help?
General
