Chapter 6 Control Modes of Operation
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ASDA-A&A+ Series
6-28
Revision April 2009
6.3.7 Resonance Suppression
The resonance of mechanical system may occur due to excessive system stiffness or frequency
response. However, this kind of resonance condition can be improved, suppressed, even can be
eliminated by using low-pass filter (parameter P2-25) and notch filter (parameter P2-23, P2-24) without
changing control parameter.
Relevant parameters:
P2 - 23
NCF
Notch Filter (Resonance Suppression)
Communication Addr.: 0217H
Default: 1000
Related Section:
Applicable Control Mode: ALL
Section 6.3.7
Unit: Hz
Range: 50 ~ 1000
Settings:
This parameter is used to set resonance frequency of mechanical system. It can be used to
suppress the resonance of mechanical system. If P2-24 is set to 0, this parameter is disabled.
P2 - 24
DPH
Notch Filter Attenuation Rate
(Resonance Suppression)
Communication Addr.: 0218H
Default: 0
Related Section:
Applicable Control Mode: ALL
Section 6.3.7
Unit: dB
Range: 0 ~ 32
Settings: 0: Disabled
P2 - 25
NLP
Low-pass Filter Time Constant
(Resonance Suppression)
Communication Addr.: 0219H
Default: 2 (1kW and below models) or
Related Section:
5 (above 1kW models)
Section 6.3.7
Applicable Control Mode: ALL
Unit: ms
Range: 0 ~ 1000
Settings: 0: Disabled
This parameter is used to set low-pass filter time constant of resonance suppression.
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