TC-32B Chapter 3 Preparation Function
2004/01/22 3 - 37 eTCOMNCPR3.doc
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3.12 Return from the Reference Point (G29)
Command format G29X_Y_Z_A_B_C_;
This command provides positioning to the commanded position through an intermediate point for
commanded axes. At an incremental command, an incremental distance from the intermediate
point must be commanded.
The commanded axes are moved to the intermediate point at the rapid traverse rate, then
positioned at the commanded point.
(Note 1) A tool motion to the intermediate point or the commanded point is done
by positioning, and interpolation is not available.
(Note 2) The tool goes through the intermediate point commanded by the G28 or
G30 whichever is given later.
(Note 3) During the single block operation, the block stops at the intermediate
point.
(Note 4) For axes whose intermediate point is not memorized using G28 or G30,
the current position is regarded as the center point.
(Note 5) When the additional axis is commanded while an optional additional
axis is not installed, an alarm will occur.
3.13 Return to the 2nd to 6th reference point (G30)
Command format G30P_X_Y_Z_A_B_C_;
P2 : Return to the 2nd reference point
P3 : Return to the 3rd reference point
P4 : Return to the 4th reference point
P5 : Return to the 5 reference point
P6 : Return to the 6th reference point
This command moves the axes to the 2nd, to 6th reference point in the same way as commanded
by G28.
The G29 code can be used as the same way as G28.
(Note 1) The 2nd to 6th reference points are set by the user parameter.
(Note 2) When P_ is omitted, return to the 2nd reference point is automatically
selected.
(Note 3) When the additional axis is commanded while an optional additional
axis is not installed, an alarm will occur.
3.14 Selection of machine coordinate system
(G53)
The coordinate values in the machine coordinate system can be commanded in the following
ways.
Command format G53 ;
The coordinate values commanded in the same block as G53 is recognized in the machine
coordinate system.
(Note) When the incremental mode (G91) is selected, the G53 command is
ignored.
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