Operation Sequence For Restarting Program - Mitsubishi Electric MELDAS 600M Series Instruction Manual

2.5.1 Operation sequence for restarting program

Before restart searching for the machining program to be restarted, if a machining program differing from
that program is being run in the tape or memory modes, etc., the machining program to be restarted can
be restarted using the following operation.
The program can also be restarted when the coordinate system from the previous automatic operation
and the coordinate system for machining restart are to be changed.
• All necessary items (setting the coordinate system, etc.) required for running the machining program
must be carried out before starting restart search.
• The head of the program to be restarted must be searched for. (Top search)
Turn the power ON, and return all axes to the reference
point.
In the MDI mode, set the coordinate system to be used
when starting the program to be restarted.
Move each axis to the program start position.
When using tape operation, index the top of the tape.
Search for the program head.
(→ Refer to "2.5.2 Executing top search".)
Search for the block to be restarted.
(→ Refer to "2.5.3 Executing restart search.)
Turn the program restart switch ON.
In the manual mode, move the axes to the restart return
position.
(→ Refer to "2.5.4 Returning to the restart position".)
Issue the manual value commands (S, M, T, B).
(→ Refer to "1.5.1 Setting a manual value command".)
Turn the program restart switch OFF.
Return to the automatic operation mode.
Press the cycle start button.
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CHAPTER 1 SCREEN OPERATIONS
2. Monitor (Operation) Screens
Start
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End
search engine
Machining program
If the command at the head of the
program is an incremental command or
G92 command, and none of the axes
are at the program start position, the
program does not restart properly.
Operations in Restart Search screen
The following items are displayed when
restart search is completed.
• Each modal value of the SMTB
functions
• Remaining distance when the restart
search is completed
• Restart position (on local
coordinates).
"RP" is displayed for the axes that have
moved to the restart position. After this,
the axis does not move in either the + or
– direction.
I – 54
Running of
other program
Machining stop
Machining
restart