Tool Length Offset (G43/G44/G49) - YASKAWA yasnac i80m Instruction Manual

2.12
TOOL OFFSET (Cont'd)
Tool Length
Offset (G43/G44/G49)
Tool length offset adds or
subtracts the
contents
of tool offset value
memory
for the coordinate command value of Z-axis, and is used
to correct
the too! length.
ID
G codes for tool length correction
Table 2.12.6
2.12.2
Meaning
i C.ide <ir>
nip
fugitive (+)
direction
*
;
IW
Negative (-)
direction
OS
•
1
44
Cancel
c;
JW US
(2)
G43 and G44 are modal commands so that once
commanded, they
remain
effective until
they are
canceled by G49.
(3)
The G49 command cancels tool
length offset.
(4)
The HOU command also has the function
to
cancel tool length offset.
(5) Tool length offset is commanded in
the
following
format:
'I'
(GOD
G43
(G44)
Z H
With this
command,
the tool, position is moved
by
the tool offset
amount
specified by the H code in the add
or
subtract direction
toward the Z-axis command position. In other
words, the position
is compensated
for by the tool offset
amount
relative
to
the Z-axis
command
target
point.
<2-
(GOD
Z
G43 (G44)
H
.
With this command,
the position is moved
by
the tool offset
amount
specified by the H code.
G43IG44) Z H
;
H
With this command,
the position is moved by the difference between
the previous tool offset
amount
and
the
new
tool offset
amount.
The G codes in
group
01
must
be GOO,
GOl.orGGO when G43. G44. orG49 is commanded.
Command in G02 or GlU modes results in error.
112
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