Siemens SINUMERIK 840Di Function Manual page 226

Detailed Description
2.8 Acceleration with active jerk limitation (SOFT/SOFTA) (axis-specific)
2.7.2 Activation
2.7.2.1 Parameterization
Key statement
The maximum value for axis-specific acceleration with programmed rapid traverse is
parameterized (G00) using the axis-specific machine data:
MD32434 $MA_G00_ACCEL_FACTOR
(scaling of the acceleration limitation with G00)
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
Key statement
The function is not programmable.
2.8 Acceleration with active jerk limitation (SOFT/SOFTA) (axis-specific)
2.8
2.8.1 Detailed description
2.8.1.1 General information
Key statement
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.
2-14
Function Manual, 08/2005 Edition, 6FC5397-0BP10-0BA0
Acceleration (B2)