Internal M Codes For Round-The-Arc Discrimination (M96/M97) - YASKAWA yasnac i80m Instruction Manual

2.12
TOOL OFFSET (Cont'd)
2.12.6
Internal M Codes for Round-the-arc Discrimination (M96/M97)
(1) The following
M codes
are used.
By parameter,
the M9G or
M97 can be
selected when the
power
is supplied or when
resetting.
/
hn-KHil Ol-d
:
M9ti\
\
I
'in
KinI Dl =
)
: M97/
Table 2.12.14
Meaning
C»de
Tool radius compenihation n.mnd-the arc ON
M96
Ti
»
il radius compemsati'
HI
nxmd-ihe-arc OFF
(iiuersectioii
calciilaiimi is executed!
MOT
10
/
A
INTFKSKCl IUN-
l<i lUNl.'-TI IK-AK'C
/
/
i'kt>;i<AM
L"MMAN1.I
lb!
M97 MODE
i
a
)
M 96 MODE
Fig. 2.12.73
(2)
For
a
command shape having a comer with
180°
or larger tangential
angle in the tool radius compensation
mode entered by G41 (or G42),
the tool moves around that comer in
a
circular arc in the M96 mode.
In the M97 mode, however,
the tool
locus is
not a
circular
arc,
and
an
intersection shifted by
the tool radius is calculated
so
that the offset
movement passes
that intersection.
(3) The move
command blocks in which M96 and M97 commands
are
effective
are as
shown below.
G01 X
......
Y :
(G01)
X
......
Y
......
M96;
G01 X
.....
.
Y F
M96 ( or M97)
Effective from
comer
movement
in these
two
blocks
Effective from comer
in
these
two
blocks
(GOD
X Y
-
166
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