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

B-63324EN/03 PROGRAMMING 7.COORDINATE SYSTEM
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7.3 LOCAL COORDINATE SYSTEM
When a program is created in a workpiece coordinate system, a child
workpiece coordinate system can be set for easier programming. Such
a child coordinate system is referred to as a local coordinate system.
Format
G52 IP ; Setting the local coordinate system
:
G52 IP 0; Canceling of the local coordinate system
IP_ ; Origin of the local coordinate system
Explanation
By specifying G52IP_;, a local coordinate system can be set in all the
workpiece coordinate systems (G54 to G59). The origin of each local
coordinate system is set at the position specified by IP_ in the
workpiece coordinate system.
When a local coordinate system is set, the move commands in absolute
mode (G90), which is subsequently commanded, are the coordinate
values in the local coordinate system. The local coordinate system can
be changed by specifying the G52 command with the zero point of a
new local coordinate system in the workpiece coordinate system.
To cancel the local coordinate system and specify the coordinate value
in the workpiece coordinate system, match the zero point of the local
coordinate system with that of the workpiece coordinate system.
Fig.7.3 (a) Setting the local coordinate system
(Local coordinate system)
(Local coordinate system)
(Machine coordinate system)
Machine coordinate system origin
Reference point
(G59 : Workpiece coordinate system 6)
(G54 : Workpiece coordinate system 1)
G55
G56
G57
G58
IP
IP

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