YASKAWA yasnac i80m

2.12.4
Tool
Radius
Offset-C
(G40,
G41,
G42)
&
By
giving
the
radius
value
of
the tool
used,
it
is
possible
to
automatically
offset
the
tool
path
by
that
quantity.
Offset
quantities
(tool
radius
values)
are
stored
in
tool
offset
value
memory
in
advance
by
using
MDI.
In
a
program,
the desired
tool
offset
value
memory
No.
can
be
specified
with
the
D
code.
(1)
Specification
of
offset
direction
and
tool radius
offset-C
specified
by
D
code
are
initiated
by
command
of
G41
or
G42,
and
canceled
by
G40.
G41
and
G42
indicate
the
direction
in
which
the tool
is
offset
relative
to
the
direction
of
advance.
I
Table
2.12.10
G
Code
of
Tool
Rudius
Compensation
C
C-de
Group
Meaning
G40
07
Tool
radius
offset-C
cancel
Tool
radius
offsei-C
l
offset
on
left
side*
Tool
radius
offset-C
(offset
uii
right
sidei
C41
07
G42
07
G40
is
set
when
the
power
is
turned
ON.
G-JI
(LEFT
SIDE)
TOOL
Q..D
COMMAND
PROGRAM
l.D
G42
(RIGHT
SIDE)
Fig.
2.12.13
Tool
Radius
Offset-C
However
if
the
contents
of
the
tool
offset
value
memory
specified
by
D
code
are
negative,
the
direction
of
offset
(right
or
left)
in
Fig.
2.12.11
is
reversed.
The
D
code
must
always
be
specified
in
the
same
block
as
G41
or
G42
or
in
the
preceding
block.
If
DOQ
is
specified,
the
nose
radius
is
assumed
to
be
“0.”
G41
and
G42
can
be
switched
over
from
one
to
another
during
the
offset
mode.
Details
are
described
in
Item
(6)
on
page
138.
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125
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