YASKAWA YASNAC 3000G

*
Variable
pitch
command
(G73,
G83)
In
the
deep
hole
drilling cycles
of
G73
and
G83,
variable
drilling
pitch
can
be
programmed
with
addresses
I,
J,
K
instead
of
address
Q
for
pro¬
gramming
a
constant
drilling
pitch.
I:
Initial
value
Command
is
given
without
signs
J:
Reducing
value
in
2nd
and
subsequent
plunges
K:
Final
value
i
i
I
-T—
—
<
y
i
R
POINT
R
POINT
i
I
I
i
l
I
I
I
i
i
+
<5
<5
r
t
T
I
I-J
I
<
I
I-J
I
f
6
6
T
I
I-2J
I-2J
I
I
i
l
I-(n-l)J
I
I-(n-l)j
]
1
I
f
I
K
J
i,
i
L
.
KT
o
-
Z
POINTK-
Z
POINT
K'
:
Final
plunge
to
Z
point
K’
<
K
(a)
With
G73
(b)
With
G83
Fig.
2.
14.16.4
The value
of
6
is
fixed
both
with
variable
pitch
and
fixed
pitch.
EXAMPLE
G91
G73
X
-.
Y.
..
R-3000
Z-5500
11000
. ..
J100 K400
F-
•
•
*
6
Drilling
pitch
1st
plunge
2nd
plunge
3rd
plunge
4th
plunge
5th
plunge
6th
plunge
7th
plunge
8th
plunge
9th
plunge
1.0
mm
Metric
system
O
nooo
10
mm
9
mm
8
mm
7
mm
6
mm
5
mm
4
mm
Inch
systemÿ
0.
1
inch
NOTES:
•
Q,
I,
J,
K
are
modal
during
canned
cycle
modes and
are
effective
until
the
canned
cy¬
cle
is
cancelled.
Specify
them without
signs.
Variable
pitch
can
also
be
programmed by
address
Q
instead
of
I.
Furthermore,
when
instructions
Q,
I,
J,
K
are
given
simultane¬
ously, drilling
cycle
is
executed
with
variable
drilling
pitch
with
Q
as
the
initial
value.
K400
4
mm
2
mm
<1
K'
55.00
mm
Z-5500
Total
-
73
-