YOKOGAWA UT55A - 7.4 Using Multiple Inputs as PV

7-15
IM 05P01C31-01EN
Input(PV,Remote,andAuxiliaryAnalog)Functions
7.4 UsingLarger,Smaller,Average,orDifference
ofTwotoFourInputsasPV
Description
LoopcontrolwithPVauto-selectorfunctionautomaticallyselectsorcalculatesthelarger,
smaller,average,
ordifferenceofmultiple(twotofour)inputsandusestheresultasPV.
The larger, smaller, and average are automatically computed based on the specified
number of inputs.
For the input difference, the difference between input 1 and input 2 is computed.
Input
1:PV
terminalinput
Input 2: RSP terminal input
Input 3: AIN2 auxiliary analog input (for UT55A only)
Input 4: AIN4 auxiliary analog input (for UT55A only)
► FunctionblockdiagramforLoopcontrolwithPVauto-selector;8.1.7LoopControlwithPVAuto-
selector,Heating/coolingLoopControlwithPVAuto-selector,andPositionProportionalLoop
ControlwithPVAuto-selector
Setting Details
Parameter
symbol
Name
Display
level
Setting range Menusymbol
PV.AS
Input computation
selection
STD
0: Max. value
1: Min. value
2: Ave. value
3: Input 1 - Input 2
4: Input 2 - Input 1
MPV
PV.NU Number of inputs STD
2: Use Input 1 and Input 2
3: Use Input 1, Input 2, and
Input 3
4: Use 4 inputs
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