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14. The number of tool offset value memories available differs between
basic and
optional
specifications.
The maximum value
of tool radius
value is
±
999.999mm
(or
±99.9999
inches).
15. If
correction of
a
step
difference smaller than the tool radius is executed
in the M96
mode, excessive
cut
may
occur.
If
performed
in the M97
mode,
insufficient
cut
may
result
(which
is preferable
to
the above,
however).
I
—
„y-
---
T
l
i
*-
—
EXCESSIVE CUT-IN
INSUFFICIENT CUT
(bi
M 97 MODE
la)
MHfi MOI.'K
Fig. 2.12.68
Correction
of
a Step
Difference Smaller
than
the Tool Radius
16. Even in the
M96
mode,
if
the
tangential angle is 30* or less or
value
Ay
is smaller than
a certain value
set
by
Pm4450. the tool
moves
directly
to
point B
without
performing
round- the-corner arc
opera¬
tion.
Note that
since the value
set
for
pm4450
is also used
as
the minimum
distance for the execution of circular
interpolation,
the
setting
for
this
parameter
has influence
on
normal circular
interpolation.
-
159
-
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