Siemens SINAMICS S110 - Page 144

Drive functions
7.1 Servo control
Function Manual
142 Function Manual, 01/2011, 6SL3097-4AB10-0BP3
Transfer function general 2nd order filter
V
I
'
I
V
V
I
'
I
V
+
1
1
1
=
=
=
V











˭
˭
˭˭
Numerator natural frequency f
Z
Numerator damping D
Z
Denominator natural frequency f
N
Denominator damping D
N
Table 7- 7 Example of general 2nd order filter
STARTER 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
I
1
+]
I
=
 +]