K3: Compensations
4.6 Friction compensation (quadrant error compensation)
Extended Functions
Function Manual, 03/2013, 6FC5397-1BP40-3BA1
293
Optimization of the compensation parameters
To optimize the compensation parameters, the circularity test must be repeated several
times and the values changed in small increments. It is recommended that the optimization
be performed with different values for radius and path velocity that are typical for the
machining operations performed on the machine.
Each effect of a parameter change should be checked with a subsequent circularity test and
documented.
Mean value generation
If different parameter values result for different radii and path velocities, the best values
should be determined via mean value generation.
Good friction compensation setting
With a good friction compensation setting, "no" contour violations can be detected at the
quadrant transitions.
,,,
&RXQWHU
&RXQWHU
,
,9
,,
Figure 4-18 Good friction compensation setting
Acceleration-dependent compensation value
If the compensation value proves to be acceleration-dependent, the "friction compensation
and adaptation" described below can be injected in a following step.
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