B–64113EN–1/01
1. AXIS CONTROL
81
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 (G50)
(3) Using external data input (refer to 15.2)
ZOFS2
ZOFS3
ZOFS4
ZOFS5
ZOFS1
ZOFS6
EXOFS : External workpiece zero point offset value
ZOFS1∼ZOFS6 : Workpiece zero point offset value
EXOFS
Workpiece
coordinate
system 1 (G54)
Workpiece
coordinate
system 2 (G55)
Workpiece
coordinate
system 3 (G56)
Workpiece
coordinate
system 4 (G57)
Workpiece
coordinate
system 5 (G58)
Workpiece
coordinate
system 6 (G59)
Machine zero
Changing an external workpiece zero point offset value or workpiece zero point offset value
When the coordinate system actually set by the G92 (G50) command
deviates from the programmed workpiece coordinate, the set coordinate
system can be shifted.
Set the desired shift amount in the workpiece coordinate system shift
memory.
X–Z: Coordinate system in programming
x–z : Current set coordinate system with shift
amount 0
(coordinate system to be modified by
shifting)
Set the shift amount from O’ to O in the workpiece coordinate system shift memory.
x
X
Z
z
O
O’
Shift
Workpiece Coordinate System shift
Changing workpiece
coordinate system
Workpiece coordinate
system shift (T series)