Chapter 9 NC Control Function
G28X0Y0
G00G90X1. Y1.
G92X0Y0
G00X500Y500
G52X1. Y1.
G00X0Y0
G01X500F100
Y500
G52X0Y0
G00X0Y0
18) Selecting the machine coordinate system (G53)
G90: Absolute command
G53: Select the machine coordinate system
X_ Y_ Z_: Feed position
G53 is the command to use the machine coordinate system and the tool moves rapidly to the X_Y_Z_ position
above in the machine coordinate system. G53 is the stand-alone G code so it is valid in the commanded block only.
It is still valid in the absolute command (G90) but becomes ineffective in the incremental command (G91). If you
want to move the tool to the machine-specific position such as a tool change position, you should program it in the
machine coordinate system with G53. The tool diameter compensation, tool length compensation, and tool position
compensation must be canceled before the G53 command, otherwise, it will be moved to the compensated state.
In addition, since the machine coordinate system must be set before the G53 is commanded, manual homing or
homing with G28 should be executed after turning on the power.
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