Dynamic characteristics in the case of homing

Parameterization

The following parameters only are relevant for CNC controlled homing. In general, homing with digital drives is done by drive itself with specific parameters.

For CNC controlled homing the CNC uses slope profile depending on parameter setting of P-AXIS-00270. For acceleration the parameter P-AXIS-00285 is used, the ramp time setting for nonlinear profiles is done with P-AXIS-00286.

Excerpt from the axis parameter list:

getriebe[0].slope_type  1
getriebe[0].a_ref       500
getriebe[0].tr_ref      200000

Without explicit parameter setting the linear profile is used, P-AXIS-00285is referenced to a minimum of P-AXIS-00005 and P-AXIS-00006.

The CNC uses the abrupt acceleration profile when homing is programmed via G74 [PROG]. Other acceleration profiles are not possible. The rapid traversing acceleration values corresponding to P-AXIS-00005, P-AXIS-00006 are used.

The slow speed during cam and zero pulse searching is set via P-AXIS-00218.

The fast speed during cam and zero pulse searching is set via P-AXIS-00219.

Excerpt from the axis parameter list:

getriebe[0].vb_refmax  20000
getriebe[0].vb_reflow  2000