YASKAWA YASNAC 3000G - Page 144

6.2.3
AUTOMATIC
TOOL-OFFSET
STORING*
7.
Set
the
tool
tip
to
the
"base
position"
by
moving
the
Z-axis
manually
using
JOG
push¬
button.
"Base
position"
can
be
freely
set
according
to
the
workpiece
to
be
machined.
If
the
resetting
the
display
of
Z-axis
to
zero,
the
display
shows
move
amount
of
the tool
between
home
position
and
base
position.
The
move
amount
in
Fig.
6.
2.
3.
2
is shown
by
-Z
1
or
-Z2.
Automatic
Tool-offset
Storing
is
to
automatically
store
the
tool
offset
value
of
Z-axis,
which
is
measured
manually,
in
the
tool
offset
memory.
This
function
is
effective
for
Z-axis
only.
Oper¬
ation
procedure
is
as
follows.
Mount
the
tool
on
the
spindle,
and
position
it
at
the
point
to
be
set
as
"home-position"
on
Z-axis. To
simplify
changing
tool,
it
is
re¬
commended
to
set
home-position
at
the
tool
change
position.
1.
8.
Depress
the
WRITE
&
RETRACT
pushbutton.
The
control
executes
the
following
operation.
The
control
stores
the
move
amount
of
the
tool
between
home
position
and
base
level
(-Zi
or
-Z2)
in
the
tool
offset
memory
specified
by
the
NUMBER
keys.
•
One
is
automatically
added
to
the
tool
off¬
set
number
specified
by
NUMBER
keys
the
NUMBER
display.
tion
for
storing
the
tool
offset
to
be
written
next.
(NUMBER
99
is
replaced
with
01.
)
At
this
time
Z-axis
automatically
returns
to
home
position
at
rapid
traverse
rate.
The
home
position
of
the
tool
is
displayed
by
zero.
To
display
the
offset
value
to
be
automatically
stored,
reset
the
display
of
Z-axis
to
zero.
For
the detailed
operation,
see
NOTES.
Writing
offset
value
is
correctly
made
with¬
out
resetting
the
display.
2.
on
This
is
a
prepara-
Set
the
MODE
SELECT
switch
to
manual
op¬
eration
mode
(RAPID,
JOG,
STEP
or
HAN¬
DLE).
3.
Depress
the
OFS
key
and
select
the
address
H
or
D.
4.
Set
the desired
tool
offset
number
with
NUM¬
BER
keys.
5.
9.
By
manual
operation
or
MDI
operation,
change
the
tool
with
a
desired
one.
Even
if
the
mode selector
switch
is
turned
to
MDI
for
changing
the
tool,
MEASUREMENT
lamp
is
kept
illuminated.
On
completion
of
changing
the
tool,
set
the
MODE
selector
back
to
manual
operation
mode.
Depress
the
MEASUREMENT
pushbutton.
The
MEASUREMENT
lamp
lights
up
and
the
current
position
of
Z-axis is
set
as
"home
position.
The
MEASUREMENT
pushbutton
is
effective
with
COM,
POS,
or
OFS
key
selected
in
the
manual
operation
mode.
Depress
the
MEAS¬
UREMENT
button
while
the
machine
stops.
6.
t
r
10.
Repeat
steps
7
to
9
until
the
required
number
of
tool
offsets
are
stored.
11.
Depress
the
MEASUREMENT
button.
MEASUREMENT
lamp
extinguishes
and
auto¬
matic
tool-offset
storing
function
is
cancel¬
led.
TOOL
OFFSET
AUTO-STORE
MEASURE¬
MENT
WRITE
&
RETRACT
O
NOTES:
•
To
set
the
display
of
home
position
at
zero,
take
one
of
the
following
three
methods.
a.
Depress
the
Z-axis
RESET
button
if
the
cur¬
rent
position
display
unit is
provided.
The
display
for
Z-axis
shows
zero.
b.
When
parameter
No.
79
is
"0,
"
select
the
address
Z
and
depress
the
POS
key
and
the
CAN
key
simultaneously.
The
universal
display
shows
zero.
c
.
When
parameter
No,
79
is
"
1
,
"
execute
G92
Z0
*
in
the
MDI
mode. The
universal dis¬
play
shows
zero.
n
Fig.
6i
2.3.
1
/
V
+z
§"
HOME
POSITION
?
?
j
RETURN
RETURN
-Z
-z
2
GAGE
--
BASE
POSITION
WORKPIECE
-f
1
I
Fig.
6.
2.
3.
2
137
-