Speed Actual Value Filter - Siemens SINAMICS S120 Function Manual

Vector control

6.11 Speed actual value filter

6.11 Speed actual value filter
Function description
For vector control, an actual speed value filter can be set. You can parameterize the actual
speed value filter as follows:
● 2nd order lowpass (PT2: -40 dB/decade)
● General 2nd order filter
You activate the actual speed value filter with p1656.4 = 1. You set the speed actual value filter
parameters with p1677 to p1681.
As long as the parameter setting p1699 = 1 is active, the background calculation of the filter
data is not performed, even when filter parameters are changed. Only with parameter setting
p1699 = 0, is the calculation performed.
Note
For the vector control, there are two current setpoint filters and one actual speed value filter.
The actual speed value filter has been allocated the number "5".
Function diagrams (see SINAMICS S120/S150 List Manual)
● 4702
● 4715
Overview of important parameters (see SINAMICS S120/S150 List Manual)
● p1655[0...4]
● p1656[0...n]
● p1677[0...n]
● p1678[0...n]
● p1679[0...n]
● p1680[0...n]
● p1681[0...n]
● p1699
242
Encoder evaluation - vector control, overview
Encoder evaluation - speed actual value and pole position sensing, encoder1,
n_act_filter5
CI: Current setpoint filter / actual speed value filter natural frequency
tuning
Current setpoint filter / actual speed value filter activation
Actual speed value filter 5 type
Actual speed value filter 5 denominator natural frequency
Actual speed value filter 5 denominator damping
Actual speed value filter 5 numerator natural frequency
Actual speed value filter 5 numerator damping
Filter data acceptance
Function Manual, 06/2019, 6SL3097-5AB00-0BP2
Drive functions