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Heating/Cooling+TemperatureLimitationControl
Output2 canbeused for temperature limitation control. To select this function, 2 temperature set
pointsmust bepre-set. One is in themidof proportional bandof output1 (CSP / HSP) asmain
setting temperature. The secondone is the temperature limitationof heatingor cooling (ASP).
In thismode if themeasured temperature is higher (inheatingmode) or lower (in coolingmode)
than temperature limitation, output2will closeandoutput analarming signal. The control logic is
seen inDiagram4and5.
Diagram4: Cooling+TemperatureLimit Control.
Output 1
Cooling
50%
Valve Open
100%
Temperature Increase
Valve Close
0%
Output 2
Alarm
C SP
ASP
