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2.2.5
NC
Tape
•
Paper
tape
For
part
program
tapes,
eight-channel paper
tapes
for
computer's
conforming
to
JIS
C6243
(width:
25.4 ±0.08
mm,
thickness: 0.108
mm)
are
used.
The color should be black
or gray.
Tapes with high
transparency
tend
to
cause reading
errors,
and should
not
be used.
I
•
NC
tape
punch
Part
programs
written
on process
sheets
are punched
in FI A
or
ISO
codes in
paper
tape
with
a
tape
puncher.
A
part
program
tape
should be provided with
a proper length
of feed
holes
at
the leading and the trailing ends.
F°r
a
tape
reader
using 6" reels1:',
the feed hole
length
should be
at
least 70
cm,
and
for a
tape
reader
using
8"
reels,
it should be
at
least
1 m.
•
NC
tape check
Punched
part
program
tapes
can
be checked
by an
NC with the following
functions.
Machine lock
•
M function lock
•
Dry run
Single-block operation
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33
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