Siemens SINAMICS S110 - Page 140

Drive functions
7.1 Servo control
Function Manual
138 Function Manual, 01/2011, 6SL3097-4AB10-0BP3
Band-stop with infinite notch depth
Table 7- 3 Example of band-stop with infinite notch depth
STARTER filter parameters Amplitude log frequency curve Phase frequency curve
Blocking frequency f
Sp
= 500 Hz
Bandwidth (-3 dB) f
BB
= 500 Hz
Notch depth K = -∞ dB
Reduction Abs = 0 dB
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Simplified conversion to parameters for general order filters:
● Reduction or increase after the blocking frequency (Abs)
● Infinite notch depth at the blocking frequency
● Numerator natural frequency f
Z
= f
Sp
● Numerator damping D
Z
= 0
● Denominator natural frequency f
N
= f
Sp
● Denominator damping:
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