Time constant of the PT2-Filter for the additive command value interface (P-AXIS-00438)

P-AXIS-00438

Time constant of the PT2-Filter for the additive command value interface

Description

For the additive command value interface (see P-AXIS-00091, [HLI//External commanding of an axis]) a PT2-filter can be used to smooth the commanded position values. This may be necessary e.g. if the PLC does not run in the interpolation cycle time of the CNC.

The time constant of the PT2 filter is given in the parameter in microseconds. The filter is inactive, if the time constant is set to 0 (default setting).

Parameter

kenngr.in_add_interface_filter_time

Data type

UNS32

Data range

0 < in_add_interface_filter_time < MAX(UNS32)

Axis types

T, R, S

Dimension

T: µs

R,S: µs

Default value

0 *

Drive types

----

Remarks

Due to the filter, the axis stop can be delayed a little bit, if the additive command value interface is deactivated (enable_w = FALSE). The axis stop can be checked in the movement flag pAC[axis_idx]^.addr^.StateLR_Data.X_IsMoved of the axis. [HLI//Status information of an axis]).

The time constant of the PT2 filter may only be actualized via parameter update if the axis is in standstill.

*(PT2 filter not active)