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(9)
By
the command G51 IOJOP---;, the
current position
can be specified
as
the
center
of
scaling.
NOTE
O
Scaling normally
turns
on
at
machining approach,
and
turns
off after
machining
iscompletcd.
If scaling is turned
on
in
the middle of
machining, the workpiece may
not
be correctly
shaped.
®
Scaling is normally applied
to
the
two
axes of
the
machining plane.
If
scaling is applied
to
only
one
axis,
circular command
cannot
be correctly
scaled,
so
alarm "281'' results.
© |
G51 1
. ....
J
. .....
K
......
P
......
:,G50;
]
These
blocks
must
be instructed with
a single
block. If
X,
Y. and
Z are
instructed
in
the
same
block, alarm
"281"
results.
©
When
a magnification
rate
of
scaling equal to or
greater
than XI is
specified,
make sure the
magnified
command value docs
not
exceed the maximum command
value.
©
0
cannot
be
instructed
for the magnification
rate
of scaling.
Specification of 0
results in alarm
'•281".
©
Scaling
is
not
applied
to
offset
quantities.
©
No canned
cycle
can
be executed while scaling
is
applied
to
Z-axis
(otherwise,
alarm
"280"
results)
©
When
msel
(by depressing
the RESET
key
or
by M02
or
M30
command),
scaling is
turned off
(G
l
50).
©
Command
value and
current
value
display during scaling
become the values after
scaling.
©
The
following
G
codes
cannot
be instructed
during scaling
(otherwise,
alarm "280"
results):
G27.
G28. G29. G30. G31.
G52Q2.
G53. G92
®
Scaling
(G51) cannot
be instructed
in tool
radius
compensation
C
(otherwise,
alarm "280"
results).
© The
following
show's alarm codes related
to
scaling:
;
Table 2.8.6
Alarm
Code
Alarm No.
Contents
280
Unusable G code
is
instructed
during
sealing mode.
Unusable G
code
in
scaling
•
More than
one
G50
or
G5! is specified.
•
The
magnification
rate
iso.
An unusable G code is
instructed
in scaling.
Scaling
format error
:
©
For
scaling,
G51 and G50
must
always
be used
as a
pair. Once the scaling mode is
entered.
new
G51 commands
arc disregarded.
©
Combination
with work coordinate
rotation,
mirror image, or coordinate rotation function
The above
0
coties
must
be
arranged in the specified
order.
Otherwise,
alarm
''285"
Work coordinate rotation iCF.-li
»
Mirror image
(M95)
.ÿ
Scaling
iG51)
:ÿ
Coordinate rotation
(CGS)
©
Scaling
command
ill mirror
image
When the
scaling
function
is used in a mirror image
operation,
the mirror image
function
changes
the
center
of scaling.
©
Coordinate
rotation
command during
scaling
When
the
coordinate rotation function
is used during scaling, the
scaling
function changes the
center
nf
rotation.
The
angle
of rotation
remains
unchanged.
occurs.
99
-
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