Current Setpoint Filters - Siemens SINAMICS S120 Function Manual

3.7

Current setpoint filters

Activate and set current setpoint filter
The current setpoint filters 1 to 4 are available as standard. The current setpoint filters 5 to
10 can be activated when required via bit 21 (extended current setpoint filters) of the function
module.
To activate the additional six current setpoint filters, make the following setting in the expert
list of the Control Unit: "p0108.21 = 1".
The individual current setpoint filters are activated via various parameters (Page 101). The
parameter values of the activated filters can then be set:
Current setpoint filter
Current setpoint filters 1 to 4
Current setpoint filters 5 to 10 p5200[0...n].1 = 1
Note
During the deactivation of the function module (p0108.21 = 0), the parameter values set in
current setpoint filters 5 to 10 are lost.
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.
Parameterization example
Four current setpoint filters connected in series can be parameterized as follows, for
example:
● Low-pass 2nd order (PT2: -40 dB/decade) (type 1)
● General filter 2nd order (type 2)
● Bandstop
● Low-pass with reduction by a constant value
Drive functions
Function Manual, (FH1), 01/2013, 6SL3097-4AB00-0BP3
Bandstop and low-pass with reduction are converted into the parameters of the general
2nd order filter via the STARTER commissioning tool.
Activate filter
p1656[0...n].1 = 1
3.7 Current setpoint filters
Set parameter values of the filter
p1657 to p1666
p5201 to p5230
Servo control
101