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12 Functional Descriptions 09.95
12.19.5 Interpolation and compensation with tables
In the case of a cam contour, a rotary axis value of the C axis (input quantity) and the
associated X axis value (output quantity) are required for each intermediate point. The output
quantity is added to the programmed X axis position as an offset. Either linear or cubic
interpolation is performed between the intermediate points.
The infeed can be programmed independently of the compensation with IKA Stage 2 in the
part program. The offset values of the output quantity are included in the display system of the
position actual values.
In the same way, the multiplication factor for speed control (output quantity) can be defined for
each rotary axis value (input quantity). This multiplication factor influences the programmed
axis or path feedrate.
Interpolation of C and X (stroke)
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Intermediate point
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90°
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Speed profile V, depends on C axis position
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Cam profile
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12–192
© Siemens AG 1992 All Rights Reserved 6FC5197- AA50
SINUMERIK 840C (IA)
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