The control uses these functions to approach a contour on a straight line with tangential connection. You use APPR LT to define the starting point of the contour with Cartesian coordinates, and APPR PLT for polar coordinates.
Application
Description of function

- The control approaches the contour as follows:
- On a straight line from the starting point PS to an auxiliary point PH
- On a straight line, tangentially from the auxiliary point PH to the first contour point PA
The auxiliary point PH is separated from the first contour point PA by the distance LEN.
Programming APPR LT and APPR PLT
Tip
If you want to program this path shape with polar coordinates, then you must first define a pole CC.
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Example APPR LT
11 L X+40 Y+10 R0 FMAX M3 | ; Approach PS without radius compensation |
12 APPR LT X+20 Y+20 Z-10 LEN15 RR F100 | ; PA with radius compensation RR; distance PH to PA: LEN 15 |
13 L X+35 Y+35 | ; End point of first contour element |
14 L ... | ; Next contour element |