Siemens SINAMICS S120 - Controller Optimization

Commissioning
4.18 Fine calibration and tuning
Hydraulic Drive
114 System Manual, 04/2015, 6SL3097-4BA00-0BP1
4.18.5
Controller optimization
General
The most important travel motion is implemented using the precontrol path.
The function of the controller parameters is to damp the oscillation characteristics of the
valve/cylinder grouping.
In this respect, we distinguish between three different scenarios relating to the corner
frequency (f):
● f
valve
<< f
cylinder
f(
①
)
The valve cannot actively influence any cylinder frequency that is higher than the valve
corner frequency.
Disturbances with frequencies f
dis
> f
valve
cannot be damped.
Figure 4-43 Frequency response of controlled system (f
valve
<< f
cylinder
)