July 2013 6.4 Axis-error compensation 691
Example of determining the cross talk from Y to Z with the setup described
above:
Select the signals that are to be recorded with the integrated oscilloscope
or TNCScope:
Actual acceleration of the exciting axis: Y a actl
Position value of the TCP in the direction of the axis to be compensated
(transverse direction): W s actl
Start the measurement program and record the signals
Determine the cross talk between the axes:
Example of measured values
Blue curve = s_actl (W) without CTC, Red curve = a_actl (Y)
Determine the maximum acceleration: a_max = 1.58 m/s²
Determine the maximum amplitude:
For the determination of the cross talk, only the dynamic portion of the
amplitude must be considered. If there is a long-range error, it must be
subtracted. In this example, the amplitude would be approx. 0.0043 mm.
Enter the respective values in TNCOpt under: Expanded Compensations /
CTC tab
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