Siemens SINUMERIK 840D sl Function Manual page 428

K3: Compensation
5.6 Friction compensation (quadrant error compensation)
The effect of fine quantization on a section of characteristic within a coarse quantization
process is shown in the diagram below (see also Section A in diagram above).
Figure 5-22
Case 3:
Coarse quantization > 1; fine quantization > 1; "Detailed learning" active (its use is only
recommended for very high precision requirements):
With "Detailed learning", learning occurs both at the interpolation points of the coarse
quantization and of the fine quantization.
The learning duration is therefore much longer.
The diagram below shows a severely fluctuating characteristic curve on which the effect of
selecting and deselecting the "Detailed learning" function is clear.
428
Effect of fine quantization with "Detailed learning" inactive
Function Manual, 09/2009, 6FC5397-1BP20-0BA0
Extended Functions