Siemens SINAMICS S120 Function Manual page 108

Servo control
3.7 Current setpoint filters
Transfer function general 2nd order filter
Numerator natural frequency f
Numerator damping D
Denominator natural frequency f
Denominator damping D
Table 3- 8 Example of general 2nd order filter
STARTER filter
parameters
Numerator frequency
f = 500 Hz
Z
Numerator damping
D = 0.02 dB
Z
Denominator frequency
f = 900 Hz
N
Denominator damping
D = 0.15 dB
N
Function diagrams (see SINAMICS S120/S150 List Manual)
• 5710
• 5711
106
Z
N
Amplitude log frequency curve
Servo control - Current setpoint filters 1 ... 4
Servo control - Current setpoint filters 5 ... 10 (r0108.21 = 1)
Z
N
Phase frequency curve
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
Drive functions