YASKAWA yasnac i80m

2.6
REFERENCE
POINT
RETURN
(Cont’d)
Second
to
Fourth
Reference
Point Return
(G30)
*
2.6.4
G30
Pn
X
......
Y
......
Z
(!x«
/3
(1)
)
;
(Pn
=
P2,
P3
U
,
P4*
)
This command
causes
the
machine
to
be
positioned
at
the
second,
third,
or
fourth
reference
point
after
being
positioned
at
the instructed
intermediate
point.
P2:
Second reference
point
P3:
Third
reference
point
&.
.
P4:
Fourth
reference
point
«
If
Pn
is
omitted,
the second
reference
point
is selected
by
default.
(2)
Any
axis
for
which
coordinate
command is omitted
does
not
move.
(3)
The
positions
of
each
reference
point
are
preset
by
parameters
(listed
below)
as
a
distance
from
the
first
reference
point.
P2:
PmtiSll
or
above
P3:
Pm6821
or
above
P4:
Pm6S31
or
above
(Program
example)
G30
P3 X30.
Y50.
:
The
X
and
Y
axes
are
returned
to
the
third
reference
point.
NOTE
O
NOTE
in
far.
2.
6.
I
"Automatic
Reference
Point
Return(G28)"
apply
to
the
G30
command
exactly
as
they
are.
9
If
G29
is
instructed
after
G30
command,
the machine is
positioned
at
the
point
specified
by
G29 after
passing
an
intermediate
point
specified
by
G30.
However,
the
intermediate
point
is
only
updated
for
the
axes
for
which
G30
is instructed.
9
Before
G30
command
is
executed,
manual
reference
point
return
or
normal
reference
point
return
by
G28
command
must
have
been
completed
after
power-on.
If
there is
any
axis
in
G30
command
for
which
reference
point
return
is
not
completed,
alarm
“0240"
may
result.
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