Approach function APPR PLT
Application
With the APPR PLT NC function, the control approaches the contour on a straight line tangential to the first contour element.
Coordinates of the first contour point are programmed with polar coordinates.
Related topics
- APPR LT with Cartesian coordinates
Requirement
- Pole CC
You must define a pole CC before programming with polar coordinates.
Description of function
This NC function encompasses the following steps:
- A straight line from the starting point PS to the auxiliary point PH
- A straight line from the auxiliary point PH to the first contour point PA
Input
11 APPR PLT PR+15 PA-90 LEN15 RR F200 | ; Approach the contour on a tangential linear path |
To navigate to this function:
Insert NC function All functions Path contour APPR APPR PLT
The NC function includes the following syntax elements:
Syntax element | Meaning |
---|---|
APPR PLT | Syntax initiator for a linear approach function tangential to the contour |
PR | Polar coordinate radius Entry: absolute or incremental Optional syntax element |
PA | Polar coordinate angle Entry: absolute or incremental Optional syntax element |
LEN | Distance of the auxiliary point PH to the contour Fixed or variable number Optional syntax element |
R0, RL, RR | |
F, FMAX, FZ, FU, FAUTO | |
M |
Note
The Form column allows toggling between the syntaxes for Cartesian and polar coordinate input.
Example APPR PLT
11 L X+10 Y+10 R0 F300 M3 | ; Approach PS with R0 |
12 CC X+50 Y+20 | ; Set the pole |
13 APPR PLT PR+30 PA+180 LEN10 RL F300 | ; Approach PA with RL; distance from PH to PA: LEN10 |
14 LP PR+30 PA+125 | ; Complete the first contour element |