Siemens SINUMERIK 840D sl Programming Manual page 408

Supplementary commands
14.7 Acceleration behavior
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)
...
Example 2: DRIVE and DRIVEA
Program code
N05 DRIVE
N10 G1 X... Y... F1000
N20 DRIVEA (AX4, AX6)
...
References
Function Manual, Basic Functions; Acceleration (B2)
408
Programming Manual, 09/2011, 6FC5398-1BP40-2BA0
Fundamentals