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Operations
<1>
to
0
are
executed as one
cycle by
the above command.
(!> Positioning
of hole-opening
position
Rapid
feed
up to
R-point
Hole
drilling (boring)
down
to
Z-point
0
Return
to
R-point
or initial point
l
(a)
Initial
point
The
initial
point
is the absolute
position
of the hole
opening
axis when
the canned cycle mode has
been entered from
a
canned
cycle
cancel
state.
The initial
point does
not
change even
when
a
canned
cycle
is
performed
in the G99
(R-point
level
return)
mode.
(b) Description
of each address
<I>
Positioning
axes (X,
Y):
The hole
opening position
is commanded
with
an
incremental value
or
absolute value. The
positioning
movement
can
be selected from GOO and G01
by
parameter
setting.
For
G01,
the
speed is
commanded
by F
code.
Hole
opening axis
(Z):
The
position of
the hole bottom is
commanded
with
an
absolute value
or
an
incremental value from
R-point.
Movement from
R-point
to
hole bottom is made
at
the
speed
commanded
by
F code in G01. GOO
movement may
be included
depending on
the
type
of canned cycle
(e.g.,
intermittent
feed).
Return from hole bottom
to R-point
is made by GOO
or
G01
movement
depending on
the
type
of canned
cycle.
(!>
R: The
position
of
R-point is
commanded with
an
absolute value
or
an
incremental value from the initial
point.
The
operating
axis is
the
hole-opening
axis. Return from
R-point
to
the initial
point
is
made
by
GOO
movement.
0
L: The
number of
repetitions
is commanded
by
address
L.
If L
is
not
commanded, 1
is assumed.
Also,
if commanded
as
L
= 0,
positioning
to
(X,
Y)
only
is
performed.
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169
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