Examples; Acceleration; Path Velocity Characteristic - Siemens SINUMERIK 840D sl Function Manual

As with SOFTA, the part program instructions BRISKA and DRIVEA are also effective in JOG
mode, i.e. the acceleration is without jerk limitation, even when MD32420
$MA_JOG_AND_POS_JERK_ENABLE is set to "TRUE" for the relevant machine axes.
Note
The manual traversing of orientation axes is not affected by BRISKA/SOFTA/DRIVEA.
5.3

Examples

5.3.1

Acceleration

5.3.1.1

Path velocity characteristic

The following example shows the path velocity characteristic, based on programmed traversing
motion and the actions initiated in a part program segment.
Part program extract
Program code
; Synchronized action: Acceleration switchover depending on fast input 1
($A_IN[1]):
N53 ID=1 WHEN $A_IN[1] == 1 DO $AC_PATHACC = 2.*$MA_MAX_AX_ACCEL[X]
; Synchronized action: Test override profile (simulation of external
interventions):
N54 ID=2 WHENEVER ($AC_TIMEC > 16) DO $AC_OVR=10
N55 ID=3 WHENEVER ($AC_TIMEC > 30) DO $AC_OVR=100
;Approach
N1000 G0 X0 Y0 BRISK
N1100 TRANS Y=-50
N1200 AROT Z=30 G642
; Contour
N2100 X0 Y0
N2200 X = 70 G1 F10000 RNDM=10 ACC[X]=30 ACC[Y]=30
N2300 Y = 70
N2400 X0
N2500 Y0
Basic Functions
Function Manual, 01/2015, 6FC5397-0BP40-5BA2
B2: Acceleration
5.3 Examples
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