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(3)
G69
;
By the above
command,
the coordinate
rotation mode is canceled.
NOTE
O
If 'a' and 'b' are
omitted,
the
position
at
which GGSwas instructed
is assumed
to
be the
center
of
rotation. R
cannot
be
omitted.
© |
G68
a
b-
R
. . . . . .
;
.
G69~i
|
l
These blocks
must
be instructed
as independent
blocks. Also
note
that for
coordinate
rotation.
GtiS and
G(59
must
be used as
a
pair.
©
The position
display
indicates
the position
where coordinate rotation is
applied.
O
Combination with work coordinate
rotation,
mirror
image, or
coordinate rotation function
The above G codes
must
be
arranged
in the
specified
order.
Otherwise,
alarm
"285" occurs.
Work coordinate rotation
(G54I
>
Mirror
image
(M94)
>
Scaling
(G51
)
)
Coordinate
rotation
(Gfi8)
©
Coordinate
rotation
command in mirror
image
When
the
coordinate rotation function
is used in a mirror image operation, the
mirror
image
function changes both the
center
of rotation and
the direction of rotation.
©
Coordinate rotation
during
scaling
When the coordinate rotation function is used
during
scaling,
the
scaling
function changes the
center
of rotation.
The
angle
of rotation remains unchanged.
©
G68 and G69 arc modal G
codes
in
group
18.
©
G69 is
automatically
selected when the
power
is turned
on or
the equipment is
reset.
©
Coordinate
rotation
IG6R) cannot
lie
instructed
in
tool radius
compensation C
(otherwise,
alarm
"3 10"
results).
©
Coordinate
rotation
normally
turns on at
machining approach
and
turns
off
after
machining
is
completed.
If coordinate
rotation is
turned
on in the middle of machining,
the work
may
not
be correctly machined.
©
The tabic below shows alarm codes related
to
coordinate
rotation.
Table 2.8.7
Alarm Code
Alarm
No.
Contents
310
Unusable G codes are instructed
in <J6»
mode.
CiiiJS is
instructed in tool radius compensation
C.
Coordinate Rotation
Unusable G command
There is
a
fnrmai
error in
(he
GSS nr Gii»
command block.
311
Coordinate
Rotation
Format
Error
101
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