Acceleration Control And Exact Stop/Continuous Path; Acceleration Pattern: Brisk, Soft; Exact Stop/Continuous-Path Control Mode: G9, G60, G64 - Siemens SINUMERIK 808D ADVANCED Programming And Operating Manual

8.7

Acceleration control and exact stop/continuous path

8.7.1

Acceleration pattern: BRISK, SOFT

BRISK
The axes of the machine change their velocities using the maximum permissible acceleration value until reaching the final
velocity. BRISK allows time-optimized working. The set velocity is reached in a short time. However, jumps are present in
the acceleration pattern.
SOFT
The axes of the machine accelerate along a non-linear, constant characteristic until reaching the final velocity. With this jerk-
free acceleration, SOFT allows for reduced machine load. The same behavior can also be applied to braking procedures.
See the following illustration for basic course of the path velocity when using BRISK/SOFT:
Programming
BRISK
SOFT
Programming example
N10 SOFT G1 X30 Z84 F650
N90 BRISK X87 Z104
8.7.2

Exact stop/continuous-path control mode: G9, G60, G64

Functionality
G functions are provided for optimum adaptation to different requirements to set the traversing behavior at the block
boundaries and for block advancing. Example: For example, you would like to quickly position with the axes or you would
like to machine path contours over multiple blocks.
Programming
G60
G64
G9
G601
G602
84
; Jerking path acceleration
; Jerk-limited path acceleration
; Jerk-limited path acceleration
; Continuing with jerking path acceleration
; Exact stop modally effective
; Continuous-path mode
; Exact stop non-modally effective
; Exact stop window fine
; Exact stop window coarse
Programming and Operating Manual (Milling)
6FC5398-4DP10-0BA1, 01/2014