Siemens SINUMERIK 840D sl Function Manual page 415

Amplitude too low
When the injection amplitude setting is too low, radius deviations from the programmed
radius are compensated inadequately at quadrant transitions during circularity testing.
Figure 5-16
Extended Functions
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
Amplitude too low
5.6 Friction compensation (quadrant error compensation)
K3: Compensation
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