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MITSUBISHI CNC
2 Monitor Screens
Automatic restart position return
If the parameter "#1302 AutoRP" is set to "1", each axis returns to the restart position with dry run at cycle start.
Machining restarts after returning. The order that the axes return follows parameter "#2082 a_rstax".
(Note 1) Manually move the axis to a position where the tool does not interfere with the workpiece before starting the
cycle.
(Note 2) Even if the parameter "#1302 AutoRP" is set to 1, the axes can be returned manually to the restart position by
turning the restart switch ON. In this case, move the axes in the order of manual restart position return →
automatic restart position return. After completing automatic restart position return, if the operation is stopped
temporarily and the restart switch is turned ON, the operation error "M01 restart switch ON" occurs.
(Note 3) Once the axis has been manually returned to the restart position, if it is moved from the restart position, it will
not return to the restart position even if automatic restart position return is executed.
(Note 4) The axis for which parameter "#2082 a_rstax" is set to 0 does not return to the restart position. Note that if 0 is
set for all axes, all axes simultaneously return to the restart position. If the axis for which parameter "#2082
a_rstax" is set to 0 has not completed manual restart position return when automatic restart position return is
started, the error "T01 Restart pos. return incomplete" occurs.
(Note 5) After automatic restart position return had been started, if the automatic start is executed during MDI mode
before not all axes have yet to complete automatic restart position return, the error "T01 Restart pos. return
incomplete" occurs.
(Note 6) After restart search had been completed, if the movement command is issued by MDI before automatic restart
position return has been started, the program error (P48) occurs. Perform the operation again after reset.
(Note 7) After restart search had been completed, if the T command different from the program is issued by MDI before
the searched program has been started, the program error (P48) may occur. Perform the operation again after
reset. T commands which result in errors are shown below. (Only L system)
(1) When "#1100 Tmove" = "0"
T command that selects a tool with different tool length/wear amount than the tool selected by the program
(2) When "#1100 Tmove" = "1"
A program error will not occur by T command.
(3) When "#1100 Tmove" = "2"
T command that selects a tool with different wear amount than the tool selected by the program
(Note 8) After restart search had been completed, if the handle interruption is performed before the searched program
has been started, always the same operation as manual absolute ON is executed regardless of "Manual
absolute" signal. When manual interruption is executed to the automatic restart position return completed axis,
the axis never returns the automatic restart position again.
(Note 9) When an axis moved to return is operated manually, the axis cannot return to correct position.
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