FineTek PT-8320 Series, Руководство пользователя

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6.5
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Out-Range Alarm
Alarm output on
When PV<=SV+POS1 or PV<=SV-POS1, DY1
starts timing.
When DY1 finishes timing, alarm sends out
signal output.
Alarm output off
When PV>=SV+POS1+HYS1 or
PV<=SV+POS1-HYS1, alarm output stops.
Ex.
：
PV= present value
SV= set value
POS1= Alarm set point
DY1= Alarm delay time
SV=60
；
POS1=10
；
HYS1=5
；
DY1=5;
When PV<=50 or PV>=70, DY1 starts timing.
When DY1 finishes timing, alarm
sends out signal output.
When PV>=55 or PV<=65, alarm output stops.
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