B–63522EN/02
7. COORDINATE SYSTEMS
NC FUNCTION
97
A coordinate system in which the zero point is set to a fixed point on the
workpiece, to make programming simple.
A workpiece coordinate system may be set by using the following
methods:
(1) Using G92 (G50 for T series with G code system A)
(2) Automatic setting
(3) Using G54 to G59
When (1) is used, a workpiece coordinate system is established using the
numeric value programmed after G92.
When (2) is used, a workpiece coordinate system is automatically
established upon a manual reference position return, as specified in a
parameter.
When (3) is used, six workpiece coordinate systems must be set from the
MDI panel in advance. The workpiece coordinate system to be used is
selected by specifying a code selected from G54 to G59.
(G90) G92 _ ;IP
By using the above command, a workpiece coordinate system can be set
so that the current tool position is at a specified position.
Z
375.1
φ128.7
25.2
X
Z
23.0
0
X
G92 X25.2 Z23.0 ;
T seriesM series
G92 128.7 Z375.1 ;
(diameter programming)
Reference point
Start
point
7.2
WORKPIECE
COORDINATE
SYSTEM
7.2.1
Setting a Workpiece
Coordinate System
(Using G92)
(with G Code System A:
G50)
Format
Examples
D Example 1