Profile generator (slope)

Generators with TRAPEZ or SIN2-shaped acceleration profiles are ideal for NC programs consisting of long motion blocks that are suitable for #CONTOUR MODE methods. If required, very rigid machines can be operated using STEP profiles.

The HSC profile generator is designed for NC programs consisting of several short blocks which are smoothed using the HSC methods Surface and B spline; the generator distributes acceleration up-gradations and down-gradations uniformly across several blocks, as shown in the figures below. The number of buffered blocks in the profile generator can be set using P-STUP-00071. If the hardware permits, it is recommended to optimise jerk utilisation using the NO_OPT option zero [PROG] or at start-up using FCT_LOOK_AHEAD_OPT [MDS-CHAN].

Profile generator (slope) 1:
Feed and acceleration in programs consisting of long blocks

Blue: path velocity, red: maximum permissible path velocity

Profile generator (slope) 2:
Feed and acceleration in programs consisting of several short blocks

Black: path velocity, red: path acceleration limit