09.95
Setting the compensa-
ting amplitude
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SINUMERIK 840C (IA)
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Fig. 9.20 Radius deviations at the quadrant transition points without compensation
If the compensating amplitude is too small, the circularity test shows that the
radius deviations from the programmed radius at the quadrant crossover points
have insufficient compensation (see Fig. 9.21).
Fig. 9.21 Radius deviations at the quadrant crossover points with insufficient compensa-
tion
If the compensating amplitude is too high, the circularity test clearly shows the
overcompensation of the radius deviations at the quadrant crossover points (see
Fig. 9.22).
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9 Drive Servo Start-Up Application (as from SW 3)
9.5.3 Conventional quadrant error compensation (as from SW 2)
Counter 2
II
Quadrant transition point
III
Counter 2
II
III
I
Counter 1
IV
I
Counter 1
IV
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