
B–63173EN–1/01
1. AXIS CONTROL
60
A coordinate system used for machining a workpiece is referred to as a
workpiece coordinate system. A workpiece coordinate system is to be set
with the CNC beforehand (setting a workpiece coordinate system).
A workpiece coordinate system can be set using one of two methods:
(1)Method using G92
A workpiece coordinate system is set by specifying a value after G92
in the program.
(2)Automatic setting
If bit 0 (ZPR) of parameter No. 1201 is set beforehand, a workpiece
coordinate system is automatically set when manual reference
position return is performed.
If a workpiece coordinate system is set, this workpiece coordinate system
is used for absolute command after setting.
#7 #6 #5 #4 #3 #2 #1 #0
1201 ZPI ZPR
[Data type] Bit
ZPR Automatic setting of a coordinate system when the manual reference
position return is performed
0 : Not set automatically
1 : Set automatically
ZPI Coordinates at the reference position when a coordinate system is set
automatically
0 : Value set in parameter No. 1250 is used.
1 : For input in mm, the value set in parameter 1250 is used, or for input in
inches, the value set in parameter No. 1251 is used.
1250
Coordinate value of the reference position used when automatic coordinate
system setting is performed
[Data type] Two–word axis
Input increment IS–A IS–B IS–C Unit
Linear axis (input in mm) 0.01 0.001 0.0001 mm
Linear axis (input in inches) 0.001 0.0001 0.00001 inch
Rotation axis 0.01 0.001 0.0001 deg
[Valid data range] –99999999 to 99999999
1.5.2
Workpiece Coordinate
System
General
Setting a workpiece
coordinate system
Parameter
[Unit of data]