Delta Electronics ASDA-B2 series User Manual

Chapter 6 Control Modes of Operation ASDA-B2
6-34 Revision September 2013
Use Notch Filter to suppress resonance
0db
Notch Filter
Attenuation
Rate P2-24
Resonance
Frequency
.
Resonance
Point
Gain
Frequency
.
Gain
Frequency
Gain
Frequency
Low-pass
Frequency
Low-pass
Frequency
Resonance
Frequency
P2-23
Resonance
conditions
is suppressed
Resonance
Frequency
Use Low-pass Filter to suppress resonance
Low-pass Filter
Cut-off Frequency
of Low-pass Filter
= 10000 / P2-25 Hz
-
0db
Resonance
conditions
is suppressed
.
.
Gain
Frequency
Gain
Frequency
Gain
Frequency
Low-pass
Frequency
Low-pass
Frequency
Resonance
Frequency
Attenuation
Rate -3db
Resonance
Point
Resonance
Frequency
When the low-pass filter (parameter P2-25) is adjusted from 0 to high value, the value
of Low-pass frequency will become smaller (see the figure on page 6-26). The
resonant condition is improved but the frequency response and phase margin will also
decrease and the system may become unstable. Therefore, if the users know the
resonance frequency, the users can eliminate the resonance conditions directly by
using notch filter (parameter P2-23, P2-24). Usually, if the resonant frequency can be
recognized, we recommend the users can directly use notch filter (parameter P2-23,
P2-24) to eliminate the resonance. However, if the resonant frequency will drift or drift
out of the notch filter range, we recommend the users not to use notch filter and use
low-pass filter to improve resonant conditions.
VARITEL INGENIERIA ELECTRONICA S.A.
info@varitel.com - www.varitel.com - Tel. (54) 11-4243-1171 / Fax: (54) 11-4292-7545
Manuel Baliña 456, Lomas de Zamora (B1832CCJ) Buenos Aires, Argentina.

Delta Electronics ASDA-B2 series Specifications

General

Brand	Delta Electronics
Model	ASDA-B2 series
Category	Servo Drives
Language	English