Okuma OSP-P20L - Page 30

5238-E P-17
SECTION 2 COORDINATE SYSTEMS AND COMMANDS
Although the origin of a program coordinate system (program zero) can be set at any position, it is
usually set on the centerline of a workpiece for the X-axis and at the left end face of workpiece for
the Z-axis.
LE33013R0300400040001
Program zero
Program coordinate
system
Zero point of encoder
Machine coordinate
system
Machine zero
Zd
Zm Zp
Z
1 Z2
X1
X2
Xp
Xm
Xd
Xd, Zd : Output value of position encoder
(0: Zero point of position encoder)
Xm, Zm : Coordinate values in the machine coordinate system
(0: Machine zero)
Xp, Zp : Coordinate values in the program coordinate system
(0: Program zero)
X1, Z1 : Offset amount of position encoder
X1, Z1 : Offset amount of position encoder