ID 70458

Low-pass filter coefficients generated not possible with specified parameters.

Description

With distance control (see FCT-M3), a low-pass filter was parameterised to smooth the measured distance values. However, no valid filter can be created with the given filter parameters.

Response

Class

7

Controlled halt of the axis, the control loop is closed.

Solution

Class

6

Check filter cut-off frequency. It must be less than 0.5 / GEO cycle time (Nyquist theorem). Try to reduce the filter order.

Parameter

%1:

Logical axis number [-]

Logical axis number P-AXIS-00016 of concerned axis

%2:

Current value [-]

Return value of filter generation

%3:

Current value [-]

Filter order of low pass filter

%4:

Current value [Hz]

Characteristic frequency of low pas filter

%5:

Current value [µs]

Cycle time of GEO task

Error type

11, Error message from position controller.