Siemens SINUMERIK 840C Installation Instructions Manual page 896

06.93
Figure 3 Radius deviations at the quadrant crossover points with insufficient compensation
If the compensating amplitude is too high, the circularity test clearly shows the
overcompensation of the radius deviations at the quadrant crossover points (see Figure 4).
Figure 4 Compensating amplitude too high
Setting the compensation time constant
If the compensation time constant used in the circularity test is too small, the test shows that
the radius deviation is compensated for a short time at the quadrant transition points but that
larger radius deviations from the programmed radius again occur immediately after (see
Figure 5).
© Siemens AG 1992 All Rights Reserved
SINUMERIK 840C (IA)
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12 Functional Descriptions
12.16.3 Installation
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