Look Ahead - Siemens SINUMERIK 840D sl Manual

CNC performance capability and optimization functions

9.4 Look Ahead

9.4 Look Ahead
The »Look Ahead« function is a means of optimizing the machining speed by »looking
ahead« over a parameterizable number of traversing blocks. With tangential block
transitions, the axis is accelerated and decelerated beyond block boundaries, so that no
drops in velocity occur.
Highlight
● Shorter machining times through optimum velocity control
46
G64 with Look Ahead
G64 without Look Ahead
G64
N1 N2 N3 N4
☑ Basic configuration
F programmed
N5 N6
t
SINUMERIK Operate - Turning, SINUMERIK 840D sl
Control system overview for machine tools' sales people, 09/2012