
B-63424EN/03 OPERATION
3. PROGRAMMING OPERATIONS
-59-
2) ARC
a) When the preceding figure block is not pending, and TANGNT is
not specified
i) I and K are inputted
-> This arc will be pending.
ii) X, Y and R are inputted, or
iii) X, Y, I and K are inputted
-> A minor arc will be determined.
NOTE
In the distance (radius) between the start point and
center differs from the one between the end point and
center, the figure displayed in a graphic window will
differ from the actual form, and machining will not be
performed correctly.
iv) Only R is inputted
-> By specifying TANGNT and inputting a line with A =
180 degree and X coordinate as an immediately after
figure, this arc can be determined.
However, there are two possible tangential points, so
one of them must be selected by inputting number data
1 or 2.
Start point
R
Center (I, K)
End point (X, Y)
Tangential point
R