Acceleration Behavior; Acceleration Response, Brisk, Soft, Drive - Siemens SINUMERIK 840Di sl Programming Manual

5.4

Acceleration behavior

5.4.1

Acceleration response, BRISK, SOFT, DRIVE

Function
BRISK, BRISKA: The axis slides travel with maximum acceleration until the feedrate is
reached. BRISK enables time-optimized machining, but with jumps in the acceleration curve.
SOFT, SOFTA: The axis slides travel with constant acceleration until the feedrate is
reached. SOFT acceleration enables higher path accuracy and less wear and tear on the
machine.
DRIVE, DRIVEA: The axis slides traverse at the maximum acceleration rate up to the
velocity limit set in the machine data. The acceleration rate is then reduced according to
machine data until the feedrate is reached. This function allows the acceleration
characteristic to be optimally adapted to a specific motor characteristic, for example, for
stepper motor applications.
Programming
BRISK
BRISKA (axis1,axis2,...)
or
SOFT
SOFTA(axis,axis2,...)
or
DRIVE
DRIVEA(axis1,axis2,...)
Parameter
BRISK
BRISKA (axis1,axis2,...)
SOFT
SOFTA(axis,axis2,...)
DRIVE
DRIVEA(axis1,axis2,...)
Fundamentals
Programming Manual, 11/2006, 6FC5398-1BP10-2BA0
Abrupt acceleration of path axes
Switch on stepped axis acceleration for the programmed axes
Jerk-limiting acceleration of path axes
Switch on jerk-limiting axis acceleration for the programmed axes
Reduction of acceleration above a velocity for path axes that can
be set in $MA_ACCEL_REDUCTION_SPEED_POINT (only
applicable for FM-NC)
Reduction of acceleration above a velocity for programmed axes
that can be set in $MA_ACCEL_REDUCTION_SPEED_POINT
(only applicable for FM-NC)
Path Action
5.4 Acceleration behavior
215