
OPERATION
B–63534EN/02
4. AUTOMATIC OPERATION
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AUTOMATIC OPERATION
Programmed operation of a CNC machine tool is referred to as automatic
operation.
This chapter explains the following types of automatic operation:
•
MEMORY OPERATION
Operation by executing a program registered in CNC memory
• MDI OPERATION
Operation by executing a program entered from the MDI panel
S DNC OPERATION
Operation while reading a program from an input/output device
S SIMULTANEOUS INPUT/OUTPUT
Program execution and memory registration can be performed
simultaneously.
•
PROGRAM RESTART
Restarting a program for automatic operation from an intermediate
point
• SCHEDULING FUNCTION
Scheduled operation by executing programs (files) registered in an
external input/output device (Handy File, Floppy Cassette, or FA Card)
•
SUBPROGRAM CALL FUNCTION
Function for calling and executing subprograms (files) registered in an
external input/output device (Handy File, Floppy Cassette, or FA
Card) during memory operation
•
MANUAL HANDLE INTERRUPTION
Function for performing manual feed during movement executed by
automatic operation
•
MIRROR IMAGE
Function for enabling mirror–image movement along an axis during
automatic operation
• TOOL WITHDRAWAL AND RETURN
Function for withdrawing the tool from a workpiece and for returning
the tool to restart machining
• RETRACE FUNCTION
Function for moving the tool in the reverse direction to retrace the path
followed, and for moving the tool in the forward direction again along
the retraced path.
• MANUAL INTERVENTION AND RETURN
Function restarting automatic operation by returning the tool to the
position where manual intervention was started during automatic
operation
• RETREAT AND RETRY FUNCTIONS
This function enables machining to be restarted from the start block.
• MEMORY CARD–BASED DNC OPERATION
Automatic operation by a program written to a memory card