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2.13
PROGRAM SUPPORT FUNCTIONS (Cont'd)
NOTE
1.
When
commanding
G28
or
G29 due
to
a change
of tools
or completion
of
machining,
be
sure
to turn
the mirror image off with M94. If G28 or
G29 is commanded with the mirror
image
on, alarm "127" results.
2.
Mirror image
is invalid for the corrective
movement by
tool length offset
function.
3.
Do
not
change
the mirror
image
axis
specification while operating in
the
M95 (image
ON)
mode.
4.
The
current
value
display
(POS)
while mirror
image
is ON
indicates
the
actual tool
movement.
5. Be sure
to program
so
that the position
at
which mirror
image
is begun
to
be
applied
and the
position
where it is terminated
are
at
the
same
position. If
not
matched, movement
after mirror
image
cancellation
is
displaced by the
difference between the mirror
image
start
and end
positions
(see
the diagram
below).
N'II i
cs;
X
ii
v
u :
Nn2
_
N
irj
'J
'.HI
On
\«i4
X
u
7>
N
m..
No?
\UK
\iri
N
In
MMT.
.
MIRROR IMAGE
ON
F.lnn :
XHl.
V 4 n
XI
2
ii.
:
.1
Ini'
X
4
II.
:
V
4
II.
:
>:
» V
11
=
M 94 :
X
2
V-
in.
:
>
:
IS
INSERTED
HERE. THE
LOTTED LINE
NT
SHOWN BELOW RESULTS.
CORRECT MIRROR
IMAGE OFF
N
I
PROGRAM COMMAND
N AXIS
MIRROR IMAGE ON
j
]~m
i
A
4.1
/
+ x
-i:u
-*i\
-
in
-
.'nkniif
PCTNT
DO
mu
"U
4I>
'
--f
---
-40
MOVEMENT DUE TO ERROR
IN
CANCELED POSITION
t
LOKKECT MOVEMENT
Fig.
2.13.26
Movement when Mirror
Image
Start
and
End Positions
Differ
-
212
-
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