Definition of a minimum block transition velocity

At discontinuous block transitions (contour angles) the path velocity is so far reduced, that the resulting axes accelerations do not exceed the limit values predefined in the axes parameters. From technological view this velocity reduction at contour angles sometimes is unwanted (e.g. flame or gas cutting). In this cases with the following command a minimum velocity can be defined, which may not be fallen below at contour angles.

The programmed minimum velocity acts only at discontinuous block transitions of circular and linear blocks. As a result in NC program no contouring mode or spline interpolation may be selected (e.g. G261, #HSC, G151).

#TRANSVELMIN ON  [ [<vel>] ] (modal)
#TRANSVELMIN OFF

<vel> Minimum block transition velocityin mm/min.

If no limit value is programmed after #TRANSVELMIN ON, the minimum transition velocity is set to 0. The command #TRANSVELMIN OFF causes the switch over to the free calculation of the velocity limitation of the look ahead function.

The functions works with linear and non-linear slope, but during non-linear slope the jerk limitation for discontinuous block transitions may not be active (Channel parameter corr_v_trans_jerk=1). In such cases the jerk limitation is prior.

The programmed minimum velocity is only valid until program end. It is set to zero at the next program start or RESET.

A predefinition in the channel parameters [CHAN] is not possible.