10
reference point, usually in a machine it can be set in six work coordinate system. In a point pattern on a workpiece
coordinate system as the origin of the work, said the work origin. When machining, the workpiece with the fixture
installed on the machine, then measure the distance between the origin and the machine origin work, and this
distance is called work origin offset, shown in Fig. 3-2:
Fig. 3-2
3.4 Maximum Stroke
At both ends of each axis of the machine is equipped with a limit switch to prevent removal of the tool end
point outside. Movable range of the tool is called the stroke. As shown in Fig. 3-3:
Fig. 3-3
In addition to travel outside the limit switch setting, it also can be set for each axis of maximum travel
through the soft limit parameters (1062-1064, 1068-1070).
3.5 Coordinate Value and Size
3.5.1 Absolute / Incremental Programming (G90 / G91)
There are two ways to move the tool of instruction; Absolute command and incremental command. In the
absolute command of, X_Y_ Z is programmed end point coordinate values;
Format:
G90 X_ Y_ Z_
；
Absolute command
