
B–63523EN–1/03
4. REFERENCE POSITION ESTABLISHMENT
595
(2)When all axes require the reference position establishment operation
Suppose that the reference position is not established for the X–, Y–,
and Z–axes and that G00 Xxx Yyy Zzz; is specified. The operation
in this case is shown in the figure below.
Operation 1 in the figure establishes the reference position. During the
establishment operation, the tool path is always of the non–linear
interpolation type regardless of the setting in bit 1 (LRP) of parameter
No. 1401.
Operation 2 performs positioning to a specified end point. During this
operation, the tool path follows the setting in bit 1 (LRP) of parameter
No. 1401.
After operation 1 is completed for all axes, operation 2 starts.
Rapid traverse
rate
X–axis
FL feedrate
Y–axis
Z–axis
← Operation 1 →← Operation 2 →
Time
Fig. 4.9 (c) When the reference position is established for all axes
(3)When some axes require the reference position establishment
operation and others do not require the establishment operation
For example, suppose that the reference position is already established
for the X–axis and that the reference position is not yet established for
the Y– and Z–axes. Also suppose that G00 Xxx Yyy Zzz; is specified.
The operation in this case is shown in the figure below.
In operation 1 in the figure, movement to a specified position is made
along the X–axis for which the reference position is already
established. For the Y– and Z–axes for which no reference position
is established, the reference position is established. During the
establishment operation, the tool path is always of the non–linear
interpolation type regardless of the setting in bit 1 (LRP) of parameter
No. 1401.
In operation 2, positioning to a specified end point is performed along
the Y– and Z–axes. The tool path along the Y– and Z–axes then
follows the setting in bit 1 (LRP) of parameter No. 1401. Because
positioning to the specified position is already made along the X–axis,
no movement is made along the X–axis.
After operation 1 is completed for all axes, operation 2 starts.