
PROGRAMMING
B–61404E/08
5. FEED FUNCTIONS
60
When G62 is specified, and the tool path with cutter compensation
applied forms an inner corner, the feedrate is automatically overridden at
both ends of the corner.
There are four types of inner corners (Fig. 5.4.2 (a)).
2°
x q x qp x 178° in Fig. 5.4.2 (a)
θp is a value set with parameter No. 215. When θ is approximately equal
to
θp, the inner corner is determined with an error of 0.001° or less.
: Cutter center path
: Tool
: Programmed path
q
1. Straight line–straight line 2. Straight line–arc
3. Arc–straight line 4. Arc–arc
q
qq
Fig. 5.4.2 (a) Inner corner
WARNING
When the block before a corner is a start–up block, or the
block after a corner includes G41 or G42, the inner corner
is not overridden. The inner corner override function is
disabled when the offset value is 0.
5.4.2
Automatic Override for
Inner Corners (G62)
Explanations
D Override condition