YASKAWA yasnac i80m

3.6
VARIOUS
OPERATIONS
AND
FUNCTIONS
(Cont’d)
3.6.6
'
Tool’
Length
Measurement
£
This
function
measures
tool
length
offset
values
for
the
length
offset
commands
(G43,
G44,
and
G49.)
(1)
Outline
Mount
the
tool
on
the
spindle.
Contact
the
tip
of
the
tool
to
the
Z-axis
contact
level
by
manual
operation.
Depress
the
WRITE
.&
RETRACT
return
button
switch...
The
system
performs
as
follows
:
(a)
Stores
the
length
from
the
set
Z-axis
home
position
to
the
reference
level
to
the
currently
specified
offset
number
memory.
Difference
between
the
contact
level
and
the
reference
level
can
be
set
by
a
parameter.
(b)
Add
“I"
to
the
offset
number
to
get
ready
for
the
next
Write-in.
(c)
Increments the
tool
to
the
Z-axis
home
position.
(2)
Operations
(a)
Measurement
of
length
of
travel
(parameter
pm6008
D0
=
0)
[1]
Mount the
tool
on
the
spindle
and
position
to
the
point
to
be
the
home
position..
The.
home,
position
can
be
set
at
any
position.
For
easy
replacement
of
tools,
it
is convenient
to
set
the
tool
replacement
position
for
the
home
position.
[2]
Set
the
MODE
select
switch
to
manual
(RAPID.
JOG,
HANDLE,
or
STEP.)
[3]
Depress
PREPARATION
key
to
enter
the
preparation
process.
[4]
Select
TOOL
job.
This
enters
the
tool
offset
value
display
mode,
where
offset
numbers
that
are
already
specified
and
data
near
the
number
are
displayed.
[5]
Depress
the
MEASUREMENT
push-button
switch.
The
MEASUREMENT
lamp
lights
and the
current
position
of
the
Z-axis
is
stored
as
the
home
position.
(This
push-button
switch
is
effective
only
in
the manual
mode.
Confirm
that
the
system
stops
before
depressing
the
switch.)
The
preparation
process
is
automatically
selected and
the
prepara¬
tion
process
screen
appears.
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610
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