Contour-specific dynamics limiting
Parameterization of channel parameters
If, for technological reasons, the contouring speed must not exceed specific limits regardless of the programmed F word, a maximum value can be set by means of P-CHAN-00090which, when activated in the NC program, limits the contouring speed calculated by the CNC.
If, for technological reasons, the contouring acceleration must not exceed specific limits, a maximum value can be set by means of P-CHAN-00002which, when activated in the NC program, limits the contouring acceleration calculated by the CNC.
Limiting of the contouring acceleration is active only in the case of feed motions, i.e. in the case of G01, G02, G03 motion blocks or in the case of polynomial or spline contours based on G01, G02, G03 blocks.
Example:
Excerpt from the channel parameter list:
vector.velocity 1500
vector.acceleration 1800000
Contour-specific dynamics limiting can be activated by means of the #VECTORACC, #VECTORVEL commands [PROG].
This does not affect dynamic limiting due to the axis-specific limits!
![]() | When the contour-specific limiting functions listed above are used, a considerable braking distance increase after activation of feed hold may result in the case of feed blocks depending on the P-CHAN-00097. This is why it is recommended, when using the functions listed above, to set the P-CHAN-00097 parameter to 1. |