YASKAWA yasnac i80m

3.5
MACHINE
CONTROL
STATION
(Cont’d)
3.5.1
.2
Cycle
start
key
and
lamp
(CYCLE
START)
CYCLE
START
a
This
key
instructs
automatic
operation
to
start
in
the
automatic
operation
mode
(TAPE,
MDI,
or
MEM).
When the
machine
starts
operating,
the
CYCLE START
lamp
lights.
Use
this
key
to
restart
the
machine
after
it
is
temporarily
stopped
by
FEED
HOLD
or
a
change
of
mode.
3.5.1
.3
Feed
hold
key
and
lamp
(FEED
HOLD)
FEED
HOLD
a
a
This
key
temporarily
stops
automatic
operation.
When
the
machine
is
temporarily
stopped,
the
CYCLE
START
lamp
goes
out
and
the
FEED
HOLD
lamp
lights.
(1)
When
the
FEED
HOLD
key
is
depressed
during
axis
movement,
the
machine
feed
is
stopped
after,
the
speed
is
decelerated.
(2)
FEED
HOLD
during
tapping
operation
in
G84:
tapping
cycle
is
disregarded.
FEED
HOLD
during
positioning
is
valid,
not
disregarded.
(3)
If
FEED
HOLD
is
entered
when
the
M,
S,
or
T
function
is
being
executed
without
involving
movement,
each
operation
is
executed
through
to
completion
although
the
FEED
HOLD
lamp
lights
immediately.
(The
same
also
applies
for
the
B
function.)
After
exe¬
cution
is
completed,
the
indicator
lamp
lights
and
operation
is
stopped.
(4)
To
restart
operation
after
FEED
HOLD,
depress
the
CYCLE START
key.
When
operation
is
stopped
in
the
middle
of
a
canned
cycle
due
to
single
block
ON.
the
FEED
HOLD
lamp
lights
automatically
(to
indicate that
the
process
is
in
the middle
of
a
canned
cycle).
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