Fagor CNC 8060, Installation Manual

Page: 334 / 698

Installation manual.
CNC 8060
CNC 8065
3.
INTRODUCTION TO
THE PLC.
Ope
ra
ti
on
of a
timer.
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3.5.3 Delayed deactivation mode. TG3 input.
This operating mode is used to apply a delay between the deactivation of trigger input TG3
and that of the "T" output of the timer. The time delay is set by the time constant.
With TEN=1 and TRS=0, the timer is activated with an up-flank at the TG3 input. At that
instant, the status output of the timer goes high (T=1).
The timer waits for a down-flank at input TG3 to start the "t" timing from "0".
Once the time indicated by the time constant has elapsed, the timing stops and the status
output of the timer goes low (T=0).
The elapsed time "t" is maintained until a new up-flank occurs at input TG3.
If the up-flank at input TG3 takes place before the indicated time has elapsed, the PLC takes
it as a new trigger and sets its status output high (T=1) and starts timing again from "0".