Lenze E94AxHE Servo Drives 9400 HighLine (Firmware 01-37 Manual de usuario Pagina 90

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9400 HighLine | Parameter setting & configuration
Motor interface
Extended commissioning | Set current setpoint filter
90 Firmware 1.37 - 09/2006 L
5.2.2 Set current setpoint filter
Due to the high dynamic performance or limit frequency of the closed current control loop
mechanical natural frequencies can be activated which may lead to an unstable speed
control loop.
In order to suppress or damp these resonant frequencies, two current setpoint filters are
integrated in the speed control loop of the controller which are switched off in the default
setting but can be parameterised accordingly, if required.
[5-7] Optional current setpoint filters (filter cascade) in the speed control loop
Since the frequency response of the speed controlled system is only rarely known to such
an extent that the current setpoint filters can be adjusted to the controlled system in the
run-up, the following example describes how to set current the current setpoint filters.
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
mm*
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