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6 MOTION PROGRAMS FOR POSITIONING CONTROL
6.13.23 G53 Mechanical coordinate system selection
Code G53
Function
Mechanical coordinate
system selection
The axis travels to the command position of basic mechanical
coordinate system at the high speed feed rate.
Format
5
Coordinates in basic mechanical
coordinate system
3Xx ;GY
y
Zz
[Explanation]
(1) The basic mechanical coordinate system represents the position determined for a
specific machine (e.g. tool changing position, stroke end position).
It is automatically set relative to the predetermined reference point after a home
position return is executed by the CHGA instruction at power-on.
(2) Not being a modal instruction, the specified block only is valid.
(3) When G53 and G28 are specified in the same block, the latter command is valid.
G53 G28 ....... ; G28 is valid (home position return command)
G28 G53 ....... ; G53 is valid (mechanical coordinate system selection
command)
(4) When G53 and G30 are specified in the same block, the latter command is valid.
G53 G30 ....... ; G30 is valid (second home position return command)
G30 G53 ....... ; G53 is valid (mechanical coordinate system selection
command)
(5) The offset specified in G92 is invalid.
(6) The tool length offset specified in G43 or G44 is invalid.