
4.AUTOMATIC OPERATION OPERATION B-63324EN-1/03
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4.9 BLOCK RESTART
The block restart function makes it possible to restart automatic
operation at the start point or another point of the block in which
automatic operation was interrupted due to an error such as tool
breakage.
Restart block procedure
Be sure to perform the following before you restart execution of a block.
The "block return switch" in the following description refers to the
switch on the machine operator’s panel. For details of actual operation,
refer to the manual published by the machine tool builder.
Procedure 1
1 Error occurs.
2 Press the Feed Hold button or change the operation mode to halt
automatic operation.
CAUTION
A block restart cannot be performed if the Reset
button or Emergency Stop button has been pressed
to enter the reset state.
3 Manually retract the tool, and carry out the necessary operation.
4 If necessary, reset the tool offset value. (Go to procedure 2.)
Procedure 2
[When the block return switch is ON]
1 Turn the block return switch ON in the jog feed mode. (The letters
"RSTR" blink on the status line on screen.
2 Move the tool towards the start point of the block that was
interrupted by jog feed. The tool automatically halts when it
arrives at the start point. (If the machine tool is in the cutter
compensation mode, a vector is made at the start point at right
angles to the tool path programmed in the interrupted block, and
the tool returns to the tip of that vector. (Go to procedure 3.)
[When the block return switch is OFF]
1 Manually move the tool as close as possible to the point where
automatic operation was interrupted. (Make sure that the tool does
not hit a workpiece or other objects.) (Go to procedure 3.)