July 2013 8.1 Display and operation 1217
A message window can be displayed automatically if NC start is pressed after
program cancellation.
The machine operator must then decide whether an NC start is permissible:
Set MP7680 bit 15 to permit an NC start only after acknowledging a
message, renewed program selection or a GOTO command.
MP7680 Machine parameter with multiple function
Input: Bit 13 – Behavior during program interruption with axis
movement
0: Automatic activation of RESTORE POSITION
1: Do not automatically activate RESTORE POSITION
Bit 14 – Behavior of NC start after NC stop and internal stop
0: NC start permitted
1: NC start only permitted after mid-program startup or GOTO
Bit 15 – NC Start if program is aborted
0: NC start permitted
1: NC Start not permitted (message window)
Retract the tool
automatically from
the contour
Through the LIFTOFF column of the tool table, a function can be activated that
retracts the tool from the workpiece by 0.1 mm in tool-axis direction after an
NC stop.
Enable the LIFTOFF function via M4620.
The function is also activated in the NC program with M148. M149
deactivates M148.
Set Reset
M4620 Activate LIFTOFF function PLC NC/PLC
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