Acceleration Behavior: Brisk, Soft - Siemens sinumerik 802d sl Operation And Programming Manual

Programming example
N10 G64 G1 X... F...
N20 Y..
...
N180 G60 ...
Look-ahead velocity control
In the continuous-path control mode with G64, the control system automatically determines
the velocity control for several NC block in advance. This enables acceleration and decelera-
tion across multiple blocks with approximately tangential transitions. For paths that consist of
short travels in the NC blocks, higher velocities can be achieved than without look ahead.
Feed
F1
Fig. 8-29
8.3.12

Acceleration behavior: BRISK, SOFT

BRISK
The axes of the machine change their velocities using the maximum permissible accelera-
tion value until reaching the final velocity. BRISK allows time-optimized working. The set ve-
locity is reached in a short time. However, jumps are present in the acceleration pattern.
SINUMERIK 802D sl Operation and Programming Nibbling (BP-N), 06/2006 Edition
6FC5 398-3CP10-0BA0
; Continuous-path control mode
; Continuous-path control mode continued
; Switching to exact stop
Programmed feedrate F
N1 N2 N3
Comparison of the G60 and G64 velocity behavior with short travels in the blocks
G64 – Continuous-path control mode with LookAhead
G60 – exact stop
N4 N5 N6 N7 N8 N9 N10 N11
Programming
8.3 Axis movements
Block travel
N12
8-165