Tool Radius Offset-C - YASKAWA yasnac i80m Instruction Manual

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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