YASKAWA yasnac i80m

3.5
MACHINE
CONTROL
STATION
(Cont’d)
3.5.2.4
Compensation
of
stored
type
pitch
error
and
preparation
of
stored
stroke
limit.
(1)
Reference
point
return
In
equipment
provided
with
pitch
error
compensation
or
stored
stroke
limit
function,
reference
point
return
operation
(a)
or(b)
below
will
be
required
before
automatic
operation
after
switching
power
ON.
(a)
Conduct
manual
reference
point
return
operation.
(See
Par.
3.6.1(D)
(b)-
Execute
G91
G28
XO
YO
ZO;
in
the
MDI
mode.
—
This
operation
is
to
teach
the
equipment
the
reference
point
since
the
operating
data
are
decided
with
the
reference
point
as
the
standard,
together
with
pitch
error
compensation
and
stored
stroke
check.
(2)
Confirmation
of
parameter
Pm4018
DO
to
D4
(For
setting
parameter
switch
at
1>
Alarm
"0411
to
0415"
(reference
point
return
incomplete)
will
occur
if
the
CYCLE
ST
ART
key
is
depressed
without
executing
reference
point
return
immediately
after
switching
the
power
ON.
:
1.
Be
sure
to
perform
reference
point
return
in
(1)
above.
2.
If
provided
with
pitch
error
compensation
or
stored
stroke
limit,
set
this
parameter
to
T.
-
586
-