Percentage Velocity Correction (Velolim) - Siemens SINUMERIK 840D sl Programming Manual

Path traversing behavior
8.7 Influencing the motion control
8.7.2

Percentage velocity correction (VELOLIM)

Function
In critical program sections, it may be necessary to limit the velocity to below the maximum
possible value - e.g. for instance to reduce the level of stress on the machine or to improve
the machining quality. The function only effects path and positioning axes.
Syntax
VELOLIM[<axis>]=<value>
Significance
VELOLIM
<axis>
<value>
Example
In the AUTOMATIC operating modes, the velocity limit value for the programmed axis is
limited to the specified percentage of the velocity limit value saved in the machine data:
N70 VELOLIM[X]=80
Meaning: The axis slide in the X direction should only be traversed with 80% of the velocity
permissible for the axis.
564
Command for velocity correction
Machine axis whose velocity limit value should be adapted.
Change as a percentage for the highest permissible velocity referred to
the value set for the axis in the machine data.
Range of values: 1 ... 100
The velocity is not influenced for a value of 100. This setting is effective
after a reset and part program start.
Programming Manual, 06/2009, 6FC5398-2BP20-0BA0
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