Programming manual.
CNC 8070
10.
ELECTRONIC THREADING AND RIGID TAPPING.
Withdraw the axes after interrupting an electronic threading (G233).
·194·
(REF: 1709)
10.4.1 Variables related to G233.
The following variables may be accessed via part-program or via MDI/MDA mode. Each of
them indicates whether it may be read (R) or written (W).
Syntax of the variables.
10.4.2 Programming example.
Threading example with G33 and G233 where a thread exit has been programmed so that
when interrupting execution, the axes stop at the starting point and repeat the threading
operation.
If a [STOP] occurs in block N70, the CNC interrupts the threading and withdraws the axes
according to block N60. After withdrawing the axes, the CNC considers blocks N70 and N80
completed and goes on to execute block N90.
Variable. PRG Meaning.
V.[ch].G.RETREJ R The user has interrupted a thread and the CNC has withdrawn the
axes from the thread.
(0 = The CNC has resumed execution, or M30 or reset)
(1 = The axes have reached the programmed distance)
V.G.RETREJ
N10 G90 G18 S500 M3
N20: G0 X20
N30 Z5
N50 X10
N60 G233 X5
(Withdrawal from the thread)
N70 G33 Z30 K5
(Threading block that may be interrupted with [STOP])
N80 G33 Z50 X15 K5
(Thread exit block)
N90 G233
N100 $IF V.G.RETREJ == 0 $GOTO N120
N110 $GOTO N20
N120 ...
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