
B-63943EN-1/02 1.AXIS CONTROL
- 161 -
WZn
-
Machine zero point
Workpiece zero
point offset value
Wzo
G54 workpiece
coordinate system before
manual intervention
G54 workpiece coordinate
system after manual
intervention
Po
Pn
mount of
movement during
manual intervention
In the operation above, a workpiece coordinate system once shifted
can be preset using G code specification or MDI operation to a
workpiece coordinate system displaced by a workpiece zero point
offset value from the machine zero point.
Bit 3 (PPD) of parameter No. 3104 specifies whether to preset relative
coordinates (RELATIVE) as well as absolute coordinates.
When no workpiece coordinate system option (G54 to G59) is
selected, the workpiece coordinate system is preset to the coordinate
system with its zero point placed at the reference position.
Limitation
M
- Cutter compensation, tool length compensation, tool offset
When using the workpiece coordinate system preset function, cancel
compensation modes: cutter compensation, tool length compensation,
and tool offset. If the function is executed without cancelling these
modes, compensation vectors are cancelled.
T
- Tool-nose radius compensation, tool offset
When using the workpiece coordinate system preset function, cancel
compensation modes: tool-nose radius compensation and tool offset.
If the function is executed without cancelling these modes,
compensation vectors are cancelled.
- Program restart
The workpiece coordinate system preset function is not executed
during program restart.
- Prohibited modes
Do not use the workpiece coordinate system preset function when the
scaling, coordinate system rotation, programmable image, or drawing
copy mode is set.