General Low-Pass With Reduction - Siemens SINAMICS S120 Function Manual

4.6.5

General low-pass with reduction

Table 4- 7 Example of general low-pass with reduction
Filter parameters
Characteristic frequency
f = 500 Hz
Abs
Damping D = 0.7
Reduction Abs = -10 dB
Conversion to parameters for general order filters:
● Numerator natural frequency f
● Numerator damping:
● Denominator natural frequency f
● Denominator damping D
Drive functions
Function Manual, 11/2017, 6SL3097-4AB00-0BP5
Amplitude log frequency curve
N
Phase frequency curve
= f (start of reduction)
Z Abs
N
Servo control
4.6 Current setpoint filter
109