Siemens SINUMERIK 840D sl Function Manual page 326

K3: Compensations
5.7 Friction compensation with a constant compensation value
Figure 5-17
Amplitude too large
Too large an amplitude value (MD32520) is revealed in the circularity test by overcompensation
of the contour deviations at the quadrant transitions.
Figure 5-18
Decay time too short
Too short a decay time (MD32540) is revealed in the circularity test when the contour deviations
at the quadrant transitions are compensated for for a short time but immediately increase again
thereafter.
Figure 5-19
326
Amplitude too small
Amplitude too large
Decay time too short
Function Manual, 10/2015, 6FC5397-1BP40-5BA3
Extended Functions