Fanuc Series 15i/150i-MA (Programming) Operators Manual

B-63324EN/03 PROGRAMMING 7.COORDINATE SYSTEM
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7.2.1 Setting a Workpiece Coordinate System (G92)
A programmed command establishes a workpiece coordinate system
according to the value after G92.
Format
(G90) G92 IP
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 tool length offset, a coordinate system in which the
position before offset matches the position specified in G92 is set.
Cutter compensation is cancelled temporarily with G92.
When a manual reference position return operation is performed in the
reset state (with the OP signal set to 0), a workpiece origin offset
created by G92 is cancelled, and the original workpiece coordinate
system is set. When a manual reference position return operation is
performed in the automatic operation state (with the OP signal set to 1),
whether the original workpiece coordinate system is set can be chosen
by setting bit 3 (PLZ) of parameter No. 1005 and bit 2 (ZNP) of
parameter No. 2402.
Example
25.2
X
Z
23.0
0
X
Z
600.0
If an absolute command is
issued, the base point moves to
the commanded position.
In order to move the tool tip to the
commanded position, the
difference from the tool tip to the
base point is compensated by
tool length offset. (See II-14.1)
(Example 2)
Setting the coordinate system by the G92X2600.2Z1200.0; command
(The tool tip is the start point for the program.)
Base point
1200.0
(Example 1)
Setting the coordinate system by the
G92X600.0Z1200.0; command (The base point on
the tool holder is the start point for the program.)

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