256 Programming: Programming Contours
6.6 Path contours—FK free contour programming
Graphics during FK programming
Incomplete coordinate data often is not sufficient to fully define a
workpiece contour. In this case, the TNC indicates the possible
solutions in the FK graphic. You can then select the contour that
matches the drawing. The FK graphic displays the elements of the
workpiece contour in different colors:
If the entered data permit a limited number of possible solutions and
the contour element is displayed in green, select the correct contour
element as follows:
Press the SHOW SOLUTION soft key repeatedly until
the correct contour element is displayed. Use the
zoom function (2nd soft-key row) if you cannot
distinguish possible solutions in the standard setting
The contour element shown corresponds to the
drawing: With the SELECT SOLUTION soft key the
TNC inserts the desired solution with the NC block
FSELECTn, where n designates the internal solution
number. You should not change the solution number
n by direct editing, but by restarting the programming
graphics and pressing the SHOW SOLUTION soft key
If you do not yet wish to select a green contour element, press the
END SELECT soft key to continue the FK dialog.
Showing block numbers in the graphic window
To show a block number in the graphic window:
Set the SHOW OMIT BLOCK NR soft key to SHOW
(soft-key row 3)
If you wish to use graphic support during FK
programming, select the PROGRAM + GRAPHICS screen
layout (see "Programming and Editing" on page 83).
Blue The contour element is fully defined
Green The entered data describe a limited number of possible
solutions: select the correct one
Red The entered data are not sufficient to determine the
contour element: enter further data
Select the green contour elements as soon as possible
with the SELECT SOLUTION soft key. This way you can
reduce the ambiguity of subsequent elements..
The machine tool builder may use other colors for the FK
graphics.
NC blocks from a program that you called with PGM CALL
are displayed in another color.
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