Frequency (P-AXIS-00751)

P-AXIS-00751

Frequency

Description

This parameter defines a frequency that has a different impact on filter response depending on the filter type setting (P-AXIS-00849).

Filter type - Band-pass filter:

The parameter defines the frequency that is to be actively damped by the "Improved Position Control" function. The middle frequency is specified for all modes P-AXIS-00753. For the “INDIRECT” and SET_POINT modes, the simulation of the mechanical vibration is based on the same frequency.

Filter type - All-pass filter:

This parameter defines the frequency at which the greatest phase rotation occurs. In the case of the all-pass filter, the frequency can be varied slightly from the set frequency of the band-pass filter in order to adjust the phase of the additive speed.

Parameter

lr_param.improved_position_control.stage[i].filter[k].fg_f0

Data type

REAL64

Data range

0.0 < fg_f0 <= 500.0

Axis types

T, R, S

Dimension

T: Hz

R, S: Hz

Default value

-1

Drive types

SERCOS, Profidrive, CANopen

Remarks

The "Improved Position Control" function achieves the best results when the dominant frequency of the mechanical vibration is precisely met. The measured frequency may deviate from the actual frequency due to measurement inaccuracies. In many cases, the performance of the function can be enhanced by varying the parameter fg_f0 within a narrow range.

Parameter available as of CNC Build V3.1.3077.08