YASKAWA yasnac i80m - Page 98

2.6
REFERENCE
POINT
RETURN
(Cont’d)
(4)
If
G28
or
G30
(refer
to
par.
2.6.4)
is
instructed
a
number
of
times,
the
coordinate value
of
point
B
for
G29
movement
becomes
an
intermediate
point
ultimately
created
by
the latest
G28
or
G30.
(Example)
Indicated
by
absolute command
for
easy
understanding
Intermediate
point
coordinate
value
X
Y Z
(0,
20.,
10.
)
(30.
.
20.
.
10.
)
N21
G90
;
N22
G28
Z10.
Y20.
N23
G28
X30.
:
X
N24
G29
X—
40.
Y-50.
:
GOO
X30.
Y20.
:
GUO
X-40. Y-50.
:
Equivalent
to
these
two
blocks
C
Example
of
Programming
j
In
ihe
L'.ivt-
nf
'".01
command.
v.ilid
l<>r
ihe command
value
>pf
OL'1.!
imovenieni
quantity
from
ail
inter
medial*-
pmiiii
and
the
intermediate
puini
i“
no!
affected
N31
91
:
N32
C.L's
Z
.
No?.
fJL-S
X
JO
Y-W.
;
N
34
Mufi
.
N35
XJfi.
Y--I0.
.
&
L
(REFERENCE
POINT)
:
INTERMEDIATE
POINT
(ABSOLUTE
COORDINATE
VALUE)
K
\
u
7s
+
V
|J!U
COMMAND
a-'
\
/
\
/
\
\
/
-1—
rf
A
+
.\
•10
Fig.
2.6.3
B-Point
Coordinate
Value
for G29
Movement
-
74
-