ABB ACS880 - Page 281

Def / Type
FbEq 16b / 32b
DescriptionName / Range /
Selection
No.
0.250 / real32
Defines the damping coefficient for parameter 24.16. The
coefficient shapes the frequency response of the resonance
frequency filter. A narrower bandwidth results in better
dynamic properties. By setting this parameter to 1, the
effect of the pole is eliminated.
40
20log
10
|H(Z)|
f (Hz)
f
z
ero
= 45 Hz
f
pole
=
40 Hz
[
zero
= 0
[
pole
= 0.050
0
-
20
-
40
-
60
50
0 100
20
f
zero
= 45 Hz
f
pole
=
40 Hz
[
zero
= 0
[
pole
= 0.250
f
z
ero
= 45 Hz
f
pole
= 40 Hz
[
zero
= 0
[
pole
= 0.750
Note: To ensure that the resonance frequency band is
filtered (rather than amplified), the value of 24.15 must be
smaller than 24.17.
Damping of pole24.17
100 = 1 / 1000 = 1Damping coefficient.-1.000 ... 1.000
Parameters 281