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3.
Using the CRT / MDI panel input:Six workpiece coordinate systems can be set beforehand using the
MDI panel. When an absolute command is used, a workpiece coordinate system must be established in any of the
ways described above.
Explanation
：
A workpiece coordinate system is set so that a point on the tool, such as the tool tip, is at specified
coordinates. If a coordinate system is set using G92 during offset, a coordinate system in which the position
before offset matches the position specified in G92 is set. Tool radius compensation is removed by G92
temporarily.
8.2.2 Selecting a Workpiece Coordinate System
The user can choose from set workpiece coordinate systems as described below.
1.
Once a workpiece coordinate system is selected, absolute commands work with the workpiece
coordinate system.
2.
Six workpiece coordinate system G54 ~ G59 can be set by MDI panel. By specifying a G code from
G54 to G59, one of the workpiece coordinate systems 1 to 6 can be selected.
G54 Workpiece coordinate system 1
G55 Workpiece coordinate system 2
G56 Workpiece coordinate system 3
G57 Workpiece coordinate system 4
G58 Workpiece coordinate system 5
G59 Workpiece coordinate system 6
Workpiece coordinate system 1 to 6 are established after reference position return after the power is turned
on. When the power is turned on, G54 coordinate system is selected.
8.2.3 Changing Workpiece Coordinate System
The six workpiece coordinate systems specified with G54 to G59 can be changed by changing an external
workpiece zero point offset value or workpiece zero point offset value.
Three methods are available to change an external workpiece zero point offset value or workpiece zero point
offset value.
1.
Inputting from the MDI panel
2.
Programming by G10 or G92
Format:
G10 L2 Pp _ X_Y_Z_; p = 0, external workpiece zero point offset value; p = 1 ~ 6, Workpiece zero point
offset value correspond to workpiece coordinate system 1 to 6.
G92 X_ Y_ Z_;
3.
Using the external data input function
An external workpiece origin offset can be changed by using a signal input to the CNC. For details, refer to
the relevant manual supplied by the machine tool builder.
8.3 Local Coordinate System
When a program is created in a workpiece coordinate system, a child workpiece coordinate system may be
set for easier programming. Such a child coordinate system is referred to as a local coordinate system.
Format
：
G52 X_ Y_ Z_; Setting the local coordinate system
G52 X0 Y0 Z0; Canceling of the local coordinate system
Explanations
：