Siemens SINAMICS S120 - Transfer Function General 2 Nd Order Filter; Function Diagrams and Parameters

Servo control
4.6 Current setpoint filter
Drive functions
110 Function Manual, 11/2017, 6SL3097-4AB00-0BP5
4.6.6
Transfer function general 2nd order filter
Numerator natural frequency f
Z
Numerator damping D
Z
Denominator natural frequency f
N
Denominator damping D
N
Table 4- 8 Example of general 2nd order filter
Filter parameters
Amplitude log frequency curve
Phase frequency curve
Numerator frequency f
Z
=
500 Hz
Numerator damping D
Z
= 0.02 dB
Denominator frequency
f
N
= 900 Hz
Denominator damping
D
N
= 0.15 dB
4.6.7
Function diagrams and parameters
Function diagrams (see SINAMICS S120/S150 List Manual)
•
5700
Servo control
- Current control, overview
•
5710
Servo control
- Current setpoint filters 1 ... 4
•
5711
Servo control
- Current setpoint filters 5 … 10 (r0108.21 = 1)