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

PROGRAMMING
15. COMPENSATION FUNCTION
B–62764EN/01
316
(1) Removal of the vector causing the interference
When cutter compensation is performed for blocks A, B and C and
vectors V
1
, V
2
, V
3
and V
4
between blocks A and B, and V
5
, V
6
, V
7
and V
8
between B and C are produced, the nearest vectors are checked
first. If interference occurs, they are ignored. But if the vectors to be
ignored due to interference are the last vectors at the corner, they
cannot be ignored.
Check between vectors V
4
and V
5
Interference ––– V
4
and V
5
are ignored.
Check between V
3
and V
6
Interference ––– V
3
and V
6
are ignored
Check between V
2
and V
7
Interference ––– V
2
and V
7
are Ignored
Check between V
1
and V
8
Interference ––––– V
1
and V
8
are cannot be ignored
If while checking, a vector without interference is detected,
subsequent vectors are not checked. If block B is a circular
movement, a linear movement is produced if the vectors are
interfered.
(Example 1) The tool moves linearly from V
1
to V
8
Tool
center path
C
C
C
r
r
V
1
V
2
V
3
V
4
V
5
V
6
V
7
V
8
A
O
1
O
2
B
Programmed
path
V
4
, V
5
: Interference
V
3
, V
6
: Interference
V
2
, V
7
: Interference
V
1
, V
8
: No Interference
D Correction of
interference in advance

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