YASKAWA yasnac lx3 - Page 45

3. Commanding G29 in the TOOL RADIUS COM-
PENSATION mode (G40 - G44) or in CANNED
CYCLES (G70 - G76, G90, G92 and G94) con-
stitutes an error.
EXAMPLE
N50 T0300 ;
N51 G28 u80. w20. ;
N52 T0400 ;
N53 G29 u-80. w40. ;
+
c (REFERENCE
ZERO POINT)
,/
/’
/
,0”
,/
B /“
-x
~L~l-
\
\
\
\\
\
\
\\
ID
+Z
%--l
40
2.8.13 2ND REFERENCE POINT RETURN (G 30)+
(1) G30 X( U)... Z(W) . . . ;
With this command, the tool first moves to
an interim positioning point (X, Z) or (U,
W ) in two axial directions simultaneously,
and then, moves to the 2nd reference point.
The tool does not move along the axis for
which no coordinate position is specified.
! +
2ND REFERENCE
z
/
POINT
/
INTERIM
POINT
Fig. 2.18
EXAMPL12
G30 U-40. W30 ;
T-],,,,/-~~E:
INTERIM POINT
POINT
TO 2N0 REFEPENCE
POINT
PARAMETER t 6613
Notes :
1.
Before commanding G 30, after the energiza-
tion of the control, G28 or MANUAL RETURN
TO REFERENCE POINT must be executed.
2.
For the 2rld REFERENCE POINT RETURN
motion, there is no area from where return-
ing is impossible ,
and the tool can be return
from any position.
3.
The same notes 3.
and 4. of (5) for 2.8.11
Automatic Return to Reference Point apply
to G30 command.
4. When G29 is commanded after G 30, the tool
moves via the interim point specified by G30
to the position specified by G 29. However,
the interim point is renewed only in the axis
specified by G30.
2.8.14 SKIP FUNCTION (G 31)+
(1)
(2)
a.
G31
X( U)... Z(W) . . . (F(E)...);
With this command, a special linear inter–
polation is executed. During the interpo-
lation movement under this instruction, the
tool interrupts the interpolation motion
immediately, and proceeds to the next block,
when a skip signal is received.
The motion after the receipt of a skip signal
varies with the instruction of the next
block.
When the next block is programmed in incre-
mental values :
The tool moves incrementally in accordance
with the next block from the point where
the interpolation is interrupted.
(2) The 2nd reference point is specified in
advance in terms of the distance from the
1st reference point commanded by G28, by
parameters #6612 and #6613.
37