Lenze E94AxPExxxx - Manual (Page 198)

6 Motor interface
6.4 Servo control (SC)
198
Lenze · 9400 Servo PLC· Reference manual · DMS 4.0 EN · 11/2013 · TD05/06
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6.4.1.3 Set current setpoint filter (band-stop filter)
Due to the high dynamic performance or the high limit frequency of the closed current control loop,
mechanical natural frequencies can be excited, which can result in resonance and thus cause the
speed control loop to become unstable.
In order to suppress or damp these resonant frequencies, two current setpoint filters are integrated
in the speed control loop of the controller, which need to be parameterised. In the Lenze setting,
these filters are switched off:
[6-2] Optional current setpoint filters (filter cascade) in the speed control loop
Overview of parameters for current setpoint filter
m = Output of the jerk limitation
C00272/1
C00271/1
C00270/1 Frequency [Hz]
Width [Hz]
Depth [dB]
Filter 1
C00272/2
C00271/2
C00270/2 Frequency [Hz]
Width [Hz]
Depth [dB]
Filter 2
m m*
Parameter Info Lenze setting
Value Unit
C00270/1 Freq. - current setpoint filter 1 200.0 Hz
C00270/2 Freq. - current setpoint filter 2 400.0 Hz
C00271/1 Width current setp. filter 1 20.0 Hz
C00271/2 Width current setp. filter 2 40.0 Hz
C00272/1 Depth current setp. filter 1 0 dB
C00272/2 Depth current setp. filter 2 0 dB