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1. AXIS CONTROL
B-64693EN-1/01
- 162 -
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 Amount of movement during manual intervention
Fig.1.5.2.2 (b)
In the operation above, like execute Manual reference position return, a workpiece coordinate system once shifted can be preset using G code specification (G92.1/G50.3 (G code system A (T series))) or MDI operation (Refer to OPERATOR’S MANUAL (Common to Lathe System / Machining Center System) (B-64694EN) “Workpiece Coordinate System Preset” in “SETTING AND DISPLAYING DATA”) 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 as well as absolute coordinates. When no workpiece coordinate system option (G54 to G59) is not provided (1 is set in bit 0 (NWZ) of parameter No. 8136), 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 mirror image, or drawing copy mode is set.
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