Mitsubishi Electric MELDAS C6 Programming Manual page 309

14. Coordinates System Setting Functions
(Example 1) Local coordinates for absolute value mode (The local coordinate system offset is not
(Example 2) Local coordinates for incremental value mode (The local coordinate system offset is
(1) G28X0Y0 ;
(2) G92X0Y0 ;
(3) G91G52X500Y500 ;
(4) M98P100 ;
(5) G52X1. Y1. ;
(6) M98P100 ;
(7) G52X-1.5 Y1.5 ;
(8) G00G90X0Y0 ;
M02 ;
(A) O100 ;
(B) G90G00X0Y0 ;
(C) G01X500 ;
(D) Y500 ;
(E) G91 ;
(F) M99 ;
(Explanation)
The local coordinate system X'Y' is created at the XY coordinate system (500,500) position by (3).
The local coordinate system X"Y" is created at the X'Y' coordinate system (1000,1000) position by (5).
The local coordinate system is created at the X"Y" coordinate system (-1500, -1500) position by (7).
In other words, the same occurs as when the local coordinate system and XY coordinate system are
matched and the local coordinate system is canceled.
cumulated)
(1) G28X0Y0 ;
(2) G00G90X1. Y1. ;
(3) G92X0Y0 ;
(4) G00X500Y500 ;
(5) G52X1. Y1. ;
(6) G00X0Y0 ;
(7) G01X500F100 ;
(8) Y500 ;
(9) G52X0Y0 ;
(10) G00X0Y0 ;
The local coordinate system is created by (5),
canceled (9) and matched with the coordinate system
f
(Note) If the program is executed repeatedly, the workpiece coordinate system
will deviate each time. Thus, when the program is completed, the reference
point return operation must be commanded.
cumulated.)
Y
'
Y
2500
2000
1500
1000
(B)
500
(3)
[W1]L1
(2)
(8)
(1)
500
R#1
Current position
W1
14.11 Local coordinate system setting
2500
2000
(5)
(4)
1500
(3)
(2)
1000
(10)
[W1]
500
(1)
500 1000 1500 2000 2500 3000
R#1
Current position
W1
(3)
Y
"
(D)
(B)
(6)
(C)
[W1]L2
(D)
(4)
(C)
1000 1500 2000
Matched
with local
coordinate system by (7).
301
(8)
(9)
(6)
(7)
Local coordinate
system created by (5).
[W1]L1
New coordinate system
created by (3)
Matched with local
coordinate system by (9).
X
X
"
Local coordinate system
created by (5).
X
'
Local coordinate system
created by (3).
2500 3000
X