ABB ACS860 - Page 164

164 Parameters
24.14 Frequency of zero Defines the zero frequency of the resonance frequency filter.
The value must be set near the resonance frequency, which is
filtered out before the speed controller.
The drawing shows the frequency response.
45.00 Hz
0.50 … 100.00 Hz Zero frequency. 1 = 1 Hz
24.15 Damping of zero Defines the damping coefficient for parameter 24.14. The
value of 0 corresponds to the maximum elimination of the
resonance frequency.
Note: To ensure that the resonance frequency band is filtered
(rather than amplified), the value of 24.15 must be smaller
than 24.17.
0.000
-1.000 … 1.000 Damping coefficient. 100 = 1
No. Name/Value Description Def/FbEq16
20
20log
10
|H()|
f (Hz)
0
-20
-40
-60
50 1000150
20
20log
10
|H()|
f (Hz)
f
zero
= 45 Hz

zero
= 0.250

pole
= 1
f
zero
= 45 Hz

zero
= 0

pole
= 1
0
-20
-40
-60
50 100
0150