Siemens SINUMERIK 808D Programming And Operating Manual

Programming principles
1.3 Axis movements
Turning Part 2: Programming (Siemens instructions)
Programming and Operating Manual, 05/2012, 6FC5398-5DP10-0BA0
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1.3.14 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 with nonlinear, constant curves 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.
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Figure 1-24 Principle course of the path velocity when using BRISK/SOFT
Programming
BRISK ; Jerking path acceleration
SOFT ; Jerk-limited path acceleration
Programming example
N10 M3 S200
N20 SOFT G1 X30 Z84 F6.5 ; Jerk-limited path acceleration
N30 X46 Z92
N40 BRISK X87 Z104 ; continuing with jerking path acceleration
N50 X95 Z110
N60 M30

Siemens SINUMERIK 808D Specifications

General

Brand	Siemens
Model	SINUMERIK 808D
Category	Control Unit
Language	English