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Coordinate Systems
The machine uses the Cartesian coordinate system, which has three axes — the X axis, the Y axis, and the Z axis — each of which is
perpendicular to the other two.
+Z
Machine Coordinate Systems
A machine coordinate system is a coordinate system determined mechanically with reference to the PNC-3200. The origin point in a
machine coordinate system is a point specific to the PNC-3200, and cannot be moved. The origin point in a machine coordinate system
is at the forward-left corner of the machine's maximum range of operation, and is the point to which the machine moves at powerup.
Coordinate values (or amounts of movement) specified in an actual program are coordinates in a workpiece coordinate system.
Workpiece Coordinate Systems
A workpiece coordinate system is a coordinate system for workpiece machining. The origin point of a workpiece coordinate system is
the program's origin point according to an absolute specification.
There are two methods that can be used to set a workpiece coordinate system.
1. Setting using G92
2. Setting using G54 to G59
1. Setting a workpiece coordinate system using G92
A workpiece coordinate is defined by specifying the workpiece coordinate location of the current tool location.
For example, to set a point which is 20 mm (X), 15 mm (Y), 10 mm (Z) from the point to be taken as the origin of the present tool
location, the following should be set:
G92X20.0Y15.0Z10.0
Normally, the tool is moved to a point on the loaded workpiece and G92X0Y0Z0 (the workpiece coordinate origin point) is set.
Executing
G92X20.0Y15.0Z10.0
sets the coordinate system taking
this as the origin point.
+Y
+X
Z
15.0
10.0
Z
Y
Tool
Y
X
20.0
X
Y
Z
X
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