Drive functions
7.1 Servo control
Function Manual
Function Manual, 01/2011, 6SL3097-4AB10-0BP3
139
Band-stop with defined notch depth
Table 7- 4 Example of band-stop with defined notch depth
STARTER filter parameters Amplitude log frequency curve Phase frequency curve
Blocking frequency f
Sp
= 500 Hz
Bandwidth f
BB
= 500 Hz
Notch depth K = -20 dB
Reduction Abs = 0 dB
. G%
Simplified conversion to parameters for general order filters:
● No reduction or increase after the blocking frequency
● Defined notch at the blocking frequency K[dB] (e.g. -20 dB)
● Numerator natural frequency f
Z
= f
Sp
● Numerator damping:
.
6S
%%
=
I
I
'
● Denominator natural frequency f
N
= f
Sp
● Denominator damping:
6S
%%
1
I
I
'
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