Siemens SINUMERIK 840D sl Function Manual page 327

Decay time too long
Too long a decay time (MD32540) is revealed in the circularity test when the contour deviation
at the quadrant transitions is compensated for at first. This assumes that the optimum
amplitude values has already been set. If the decay time is too long, however, the
compensation applies for too long and results in overcompensation at the next circular contour.
Figure 5-20
Good friction compensation setting
With a good friction compensation setting, "no" contour violations can be detected at the
quadrant transitions.
Figure 5-21
See also
Friction compensation with adaptive characteristic (Page 328)
Extended Functions
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
5.7 Friction compensation with a constant compensation value
Decay time too long
Good friction compensation setting
K3: Compensations
327