Siemens SINUMERIK 840D sl Function Manual page 241

This is used to generate the maximum value for axis-specific acceleration with programmed
rapid traverse (G00) that is taken into account by the path planning component during
preprocessing:
Acceleration[axis] =
MD32300 $MA_MAX_AX_ACCEL * MD32434 $MA_G00_ACCEL_FACTOR
2.7.3 Programming
The function is not programmable.
2.8 Acceleration with active jerk limitation (SOFT/SOFTA) (axis-specific)
2.8.1 Detailed Description
2.8.1.1 General Information
Function
Compared with acceleration without jerk limitation, acceleration with jerk limitation results in
a certain degree of time loss, even when the same maximum acceleration value is used. To
compensate for this time loss, a specific maximum value can be programmed for the axis-
specific acceleration as far as traversing of the machine axes with active jerk limitation
(SOFT/SOFTA) is concerned.
The maximum value for acceleration with active jerk limitation is parameterized using a
factor calculated in relation to the axis-specific maximum value. This is used to generate the
maximum value for axis-specific acceleration with active jerk limitation that is taken into
account by the path planning component during preprocessing:
Acceleration[axis] =
MD32300 $MA_MAX_AX_ACCEL * MD32433 $MA_SOFT_ACCEL_FACTOR
Basic logic functions: Acceleration (B2)
Function Manual, 11/2006, 6FC5397-0BP10-2BA0
2.8 Acceleration with active jerk limitation (SOFT/SOFTA) (axis-specific)
Functions
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