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.

Requirement

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

Tool radius compensation

Tool radius compensation

Optional syntax element

F, FMAX, FZ, FU, FAUTO

Feed rate

Feed rate F

Fixed or variable number

Optional syntax element

M

M function

Miscellaneous Functions

Fixed or variable number

Optional syntax element

Note

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