Chapter 10 Code Explanation
81
After input this code, coordinate of reference point to be set by G92 can be saved
automatically. Before new cutting code hasn’t been inputted, the coordinate of this
reference point is always available, whether system is power off or not. After input a new
cutting code, if new code has G92 instruction, the coordinate of this reference point is the
context after G92, if no G92, the reference point is default (0, 0). In one code file, G92
only appears once.
Example:
a.
G92 X0 Y0
Take (0,0) as reference coordinate, when press “go back” function key, the machine
tool goes back to coordinate point (0, 0).
b.
G92 X20 Y0
Take (20,0) as reference coordinate, when press “go back” function key, the machine
tool goes back to coordinate point (20,0).
2.
G90/G91
Format:
G90/G91
G90: absolute coordinate. X/Y in the code means absolute coordinate value; U and V
mean relative coordinate value.
G91: relative coordinate. X/Y in the code means relative coordinate value; U and V
also mean relative coordinate value.
Example
：
a.
G90 usage
G92 X0 Y0 // Reference point (0,0)
G90 // Absolute coordinate
G00 X20 Y0 // Rapidly moving tool to (20,0)
M07 // Cutting device on
G01 X120 Y100 //Cutting to (120,100)
M08 //Cutting device off
M02 // End of program
(20
，
0)
(120
，
100)
Fig 10.2 G90 usage
Содержание F2100B/T
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