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LOW LIMIT OPERATION
If Lo. is selected for OUT1, the unit will perform low limit control.
When power is applied the OUT1 relay is de-energized. After 6.5
seconds self-test period, if the process is above the low limit set
point (LSP1), the output 1 relay will be energized and OP1 indicator
will go off. If the process goes below the low limit set point, the relay
will be de-energized, the OP1 indicator will go on and the display
will show the process value. After the process rises above the low
limit set point and the RESET key is pressed or the remote reset
input is applied, the relay will be energized and the OP1 indicator
will go off.
OUT1 Relay
14
ON
OFF
A
Figure 1-5 Low Limit Operation
UM0L911C
A, B ,C=Reset is applied
B C
O1.HY= Output1 hysteresis
LSP1+O1.HY
LSP1
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