System information

SECTION FOUR - PREPARATORY FUNCTIONS (G CODES)
Coordinate systems
Machine zero is a fixed point on the machine. The machine tool builder normally decides the
machine zero point. A limit switch and encoder marker pulse on each axis sets it.
The machine zero point is established when the F1(Home) command is first executed. Once the
machine zero point is established, it is not changed by reset, coordinate system call (G54-G59),
coordinate system shift (G92), or local coordinate system setting (G52).
Software limits are set from the machine zero point.
Machine coordinate system (G53)
A G53 code preceding any XYZ move will cause those dimensions to be relative to the machine
zero point.
X1 Y1 move to P2
G92 X0 Y0
X-1 Y-1 move to P3
G53 X0 Y0 move to P3
X1 Y1 move to P1
or
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