
1.AXIS CONTROL B-63783EN-1/01
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1.19 GENERAL PURPOSE RETRACT
Overview
When the retract signal RTRCT is turned to ”1” (the rising edge is
detected) in auto mode or manual mode, the axis moves (retracts) by
the amount set in the parameter No.7796.
Upon the completion of retraction, the retract completion signal
RTRCTF is output.
- Feedrate in retract is set to the parameter No.7740. Then the
feedrate override is not effective.
- During the movement in retract, feed hold is not effective.
- In case that retract signal is turned to ”1” in auto mode, the
movement of the auto mode is feed hold state and the retract
movement is done.
- The retract completion signal is turned to ”0” when any retract
axis is moved.
Signals
Retract signal
RTRCT<G042#4>
[Classification] Input signal
[Function] Performs retraction for the axis specified with a parameter.
[Operation] When this signal turns to ”1”, the control unit performs the following:
An axis for which an amount of retraction is specified with parameter
No. 7796 can be retracted at the positive-going edge of the signal.
The retract speed and amount of retraction are specified with parameter
Nos.7796 and 7797. The retract signal is effective both in automatic
operation mode (MEM, MDI, and etc.) and manual operation mode (H,
JOG, etc.). When the retract signal turns to ”1” during automatic
operation, retraction is performed and the CNC enters feed hold state.
Retraction completion signal
RTRCTF<F041#4>
[Classification] Output signal
[Function] Posts notification of the completion of retraction.
[Operation] The signal becomes ”1” when :
- Upon the completion of retraction.
In case that there are two or more retract axes, upon the
completion of retraction of all retract axes.
The signal becomes ”0” when :
- Upon the completion of retraction, when one of the retract axis is
specified after that.
NOTE
If the retraction completion signal is "1", no retraction
signal is acceptable.