Additional functions
13.12 Influencing the motion control
Job planning
13-52 Programming Manual, 03/2006 Edition, 6FC5398-2BP10-1BA0
13.12.2 Percentage velocity correction (VELOLIM)
Function
In critical program sections, it may be necessary to limit the velocity to below maximum
values, for example, to reduce mechanical stress or enhance finish. The function only effects
path and positioning axes.
Programming
VELOLIM[axis]= ...
Parameters
VELOLIM Percentage change for the greatest permissible
velocity relative to the value set in the machine
data for the axis
Axis Machine axis whose velocity limit has to adapted
Value range: 1 ... 100 100 corresponds to: no effect on the velocity.
100 is applied after RESET and parts program start.
VELOLIM example
In the AUTOMATIC modes, the velocity limit is limited to the percentage of the velocity limit
stored in the machine data.
N70 VELOLIM[X]=80
Meaning: The axis carriage in the X direction must travel at only 80% of the velocity
permissible for the axis.
VELOLIM and JERKLIM example
N1000 G0 X0 Y0 F10000 SOFT G64
N1100 G1 X20 RNDM = 5 ACC[X] = 20
ACC[Y]=30
N1200 G1 Y20 VELOLIM[X]=5
JERKLIM[Y]=200
N1300 G1 X0 JERKLIM[X]=2
N1400 G1 Y0
M30
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