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2.12
TOOL OFFSET (Cont'd)
NOTE
(Precautions on
tool radius compensation-C)
1.
Limits
on
the
maximum command values of coordinate words
(Tables
2.1.12,
2.1.13 and
2.1.14)
are applied even in tool radius compensation-C.
2. Command
shapes causing
alarm
The
following
command
shapes
result
in alarm "1S4."
(a)
When
an
arc
(radius
of command circle r+5
tool radius
dj
is commanded for inside offset of arc
command.
&
TOOL
/
rÿd
I
d
I
<1
I
r
sd
<l>)
INSIDE OFFSET ALAKM
(a)
OUTSIDE OFFSET ALARM
rx
d
i
\
Evenifr<d.
•inside- <>fl»ei
is
correct
I
y
performed.
i
f
r<t1
r
I
f
i
Fig. 2.12.64
Command
T>
Occurred Alarm
(b)
When
no
intersection resides
on
the offset
tool
center
locus.
NO-INTERSECl
ION ERROR
.This
occurs when
i
« »
»1 radius d
is
excessively large compared
to
the command shape.
S
/
s\
\
"N
j
1
NO
INTER5EC1 ION
%
j
4
TOOL
i
Fig. 2.12.65
Command
>1*
Occurred Alarm
156
-
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