Siemens Sinamics S110 Function Manual page 134

Drive functions
7.1 Servo control
Transfer function:
Denominator natural frequency f
Denominator damping D
Table 7- 2 Example of a PT2 filter
STARTER filter parameters
Characteristic frequency f
Damping D 0.7 dB
N
Band-stop with infinite notch depth
Table 7- 3 Example of band-stop with infinite notch depth
STARTER filter parameters
Blocking frequency f = 500 Hz
Sp
Bandwidth (-3 dB) f = 500 Hz
BB
Notch depth K = -∞ dB
Reduction Abs = 0 dB
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
● Numerator damping D
● Denominator natural frequency f
● Denominator damping
134
N
Amplitude log frequency curve
500 Hz
N
Amplitude log frequency curve
= 0
Z
N
= f
Z Sp
= f
N Sp
Function Manual, 10/2008, 6SL3097-4AB10-0BP0
Phase frequency curve
Phase frequency curve
Drive functions