ABB ACS860 - Page 165

Parameters 165
24.16 Frequency of pole Defines the frequency of pole of the resonance frequency
filter.
Note: If this value is very different from the value of 24.14, the
frequencies near the frequency of pole are amplified, which
can damage the driven machine.
40.00 Hz
0.50 … 100.00 Hz Frequency of pole. 1 = 1 Hz
24.17 Damping of pole 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.
Note: To ensure that the resonance frequency band is filtered
(rather than amplified), the value of 24.15 must be smaller
than 24.17.
0.250
-1.000 … 1.000 Damping coefficient. 100 = 1
No. Name/Value Description Def/FbEq16
40
20log
10
|H()|
f (Hz)
f
zero
= 45 Hz
f
pole
= 50 Hz

zero
= 0

pole
= 0.250
0
-20
-40
-60
50
0100
20
f
zero
= 45 Hz
f
pole
= 40 Hz

zero
= 0

pole
= 0.250
f
zero
= 45 Hz
f
pole
= 30 Hz

zero
= 0

pole
= 0.250
40
20log
10
|H()|
f (Hz)
f
zero
= 45 Hz
f
pole
= 40 Hz

zero
= 0

pole
= 0.050
0
-20
-40
-60
50
0100
20
f
zero
= 45 Hz
f
pole
= 40 Hz

zero
= 0

pole
= 0.250
f
zero
= 45 Hz
f
pole
= 40 Hz

zero
= 0

pole
= 0.750