Siemens SINUMERIK 840D sl Programming Manual page 840

Work preparation
3.14 Path traversing behavior
Figure 3-13
Syntax
BRISK
BRISKA(<axis1>,<axis2>,...)
SOFT
SOFTA(<axis1>,<axis2>,...)
DRIVE
DRIVEA(<axis1>,<axis2>,...)
Meaning
BRISK:
BRISKA:
SOFT:
SOFTA:
DRIVE:
DRIVEA:
(<axis1>,<axis2>, etc.):
Supplementary conditions
Changing acceleration mode during machining
If the acceleration mode is changed in a part program during machining (BRISK ↔ SOFT), then
there is a block change with exact stop at the end of the block during the transition even with
continuous-path mode.
Examples
Example 1: SOFT and BRISKA
Program code
N10 G1 X... Y... F900 SOFT
N20 BRISKA(AX5,AX6)
...
840
Path velocity curve with DRIVE
Command for activating the "acceleration without jerk limitation"
for the path axes.
Command for activating the "acceleration without jerk limitation"
for single axis movements (JOG, JOG/INC, positioning axis, os‐
cillating axis, etc.).
Command for activating the "acceleration with jerk limitation" for
the path axes.
Command for activating the "acceleration with jerk limitation" for
single axis movements (JOG, JOG/INC, positioning axis, oscil‐
lating axis, etc.).
Command for activating the reduced acceleration above a con‐
figured velocity limit (MD35220 $MA_ACCEL_REDUC‐
TION_SPEED_POINT) for the path axes.
Command for activating the reduced acceleration above a con‐
figured velocity limit (MD35220 $MA_ACCEL_REDUC‐
TION_SPEED_POINT) for single axis movements (JOG, JOG/
INC, positioning axis, oscillating axis, etc.).
Single axes for which the called acceleration mode is to apply.
Programming Manual, 12/2019, 6FC5398-2EP40-0BA0
NC programming