Fanuc Power Mate i-D/H Operator Manual

PROGRAMMING
(Common to Power Mate i–D and –H)
B–63174EN/03
7. COORDINATE SYSTEM
69
A coordinate system used for operation of machine 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).
Program the machine’s operation based on the set workpiece coordinate
system.
A set workpiece coordinate system can be changed by shifting its origin
(changing 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 (see Part V–3.1.).
G92 _
P
I
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 tool length offset, a coordinate system in which the position
before offset matches the position specified in G92 is set.
25.2
X
Z
23.0
0
Setting the coordinate system by the
G92X25.2Z23.0; command
(The tool tip is the start point for the program.)
Example 1
The user can choose from set workpiece coordinate systems as described
below. (For information about the methods of setting, see Section
II–7.2.1.)
(1) Selecting a workpiece coordinate system set by G92 or automatic
workpiece coordinate system setting
Once a workpiece coordinate system is selected, absolute commands
work with the workpiece coordinate system.
7.2
WORKPIECE
COORDINATE
SYSTEM
7.2.1
Setting a Workpiece
Coordinate System
Format
Setting a workpiece
coordinate system by G92
Explanations
Examples
7.2.2
Selecting a Workpiece
Coordinate System

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