YASKAWA yasnac lx3 - Page 46

2, 8.14 SKIP FUNCTION (G31)t (Cent’d)
b.
c.
EXAMPLE
G31 W120. ;
GO1 u1OO. ;
,-+ :J
ACTUAL
MOTION
COMMAND 1
I
,50
x
.— --
4
1~~
~z
/
SKIP
SIGNAL ON
When the next block is programmed in abso-
lute values only for one axis:
The tool moves to the specified coordinate
position in the specified axis. It remains
at the position where the skip signal is re–
ceived, if axis is not specified.
EXAMPLE
G31 Z400. ;
GO1 X1OO. ;
4’
ACTUAL
v
MOTION
COMMAND ~
x
~ 100 DIA
L-
--—-
--l
400
z
SKIP SIGNAL ON
When the next block is programmed in abso-
lute values along two axes :
The tool moves to the commanded position
from the point at which a skip signal is
received.
200.
EXAMPLE
G31 W1OO.
GO1 X300.
Z200. ;
x
L
2
\
\
\
\ 300 DIP
\
\
___
100
I
L
/
SKIP SIGNAL ON
(3)
(4)
a.
b
(5)
G31 is a non-modal G code.
When no skip signal is received during the
execution of the block containing G 31, the
tool stops at the end of the block, and alarm
“087” is displayed.
The feedrate for blocks containing G 31 are
set in the following two methods, selectively
specified by parameter #6019D 4.
Designation by F in the same way as with
normal programs .
Presetting of feedrates by parameter #6232.
When a skip signal is received, the coordinate
values at that moment are automatically stored
as parameter data.
#6568 for storing X coordinate value
#656 9 for storing Z coordinate value
These data can be used as system’ variables
in user macros.
Notes :
1.
2.
3.
When parameter #6004D0 is set to 1, the pro-
gram is advanced to the next block automati-
cally even when no skip signal. is received
during the execution of the block of G31.
Before programming G31, be sure to program
G40 for canceling TOOL RADIUS COMPEN-
SATION .
Failure to do this initiates
alarm “024. “
Commanding G31 with skip signal ON advances
the program to the next ~loc~ without executing
the current block.
2.8.15 THREAD CUTTING, CONTINUOUS THREAD
CUTTING (G 32)
This function is for cutting straight threads,
taper threads, scrolls and for continuous thread–
ing.
(1) G32 X( U)... Z(W) . . . F(E) . . . ;
With this command, the tool cuts threads up
to the point (X, Z ) specified in absolute
coordinates or (U, W) specified in incre–
mental coordinate values, at a lead desig–
nated by F or E code.
(2) The range of leads to be specified by F and
E codes is as follows.