FANUC Series 16/18/160/180-Model C Machining Center Operators Manual

PROGRAMMING
B–62764EN/01
5. FEED FUNCTIONS
91
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,
θθp178, in Fig. 5.4.2 (a)
θp is a value set with parameter No. 1711. When θ is approximately
equal to
θp, the inner corner is determined with an error of 0.001,or
less.
θ
Cutter center path
Tool
Programmed path
θ
θ
θ
1. Straight line–straight line 2. Straight line–arc
3. Arc–straight line 4. Arc–arc
Fig. 5.4.2 (a) Inner corner
Acceleration/deceleration before interpolation
Override for inner corner is disabled during acceleration/deceleration
before interpolation.
5.4.2
Automatic Override for
Inner Corners
(G62)
Explanations
D Override condition
Limitations

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