YOKOGAWA UT55A - Page 19

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IM 05P01C31-01EN
6.1.2 OperationDisplayTransitionsinLoopControlwithPVSwitchingandLoop
ControlwithPVAuto-selector ............................................................................. 6-5
Standard Type .....................................................................................................................6-5
Position Proportional Type ...................................................................................................6-6
Heating/cooling Type ...........................................................................................................6-7
6.1.3 Operation Display Transitions in Cascade Control ............................................. 6-8
Standard Type .....................................................................................................................6-8
Position Proportional Type .................................................................................................6-10
Heating/cooling Type .........................................................................................................6-12
6.2 Setting Target Setpoint ................................................................................................... 6-19
Operation in the Operation Display ....................................................................................6-19
Operation in Parameter Setting Display ............................................................................6-20
6.3 Performing and Canceling Auto-tuning ........................................................................... 6-21
6.4 AdjustingPIDManually .................................................................................................. 6-24
6.5 Setting Alarm Setpoint .................................................................................................... 6-30
6.6 Selecting
Target Setpoint Number (SPNO) .................................................................... 6-31
6.7
Switching Operation Modes ........................................................................................... 6-32
6.7.1 Switching between
AUTO and MAN .................................................................
6-32
Direct Operation by A/M Key .............................................................................................6-32
6.7.2 Switching between CAS (Cascade), AUTO, and MAN ..................................... 6-34
6.7.3 Switching between STOP and RUN ................................................................. 6-36
6.7.4 Switching between REM (Remote) and LCL (Local) ........................................ 6-38
6.8 Manipulating Control Output during Manual Operation ..................................................
6-40
6.9 Releasing On-State (Latch) of Alarm Output
.................................................................. 6-41
Chapter7Input(PV,Remote,andAuxiliaryAnalog)Functions
7.1 SettingFunctionsofPVInput,RemoteInput,andAuxiliaryAnalogInput ........................ 7-1
7.1.1 Setting Input Type, Unit, Range, Scale, and Decimal Point Position .................. 7-1
7.1.2 Setting Burnout Detection for Input ..................................................................... 7-5
7.1.3 Setting Reference Junction Compensation (RJC) or External Reference Junction
Compensation (ERJC) ........................................................................................
7-6
7.1.4 CorrectingInput
Value ........................................................................................ 7-7
(1) Setting Bias and Filter ....................................................................................................7-7
(2) Setting Square Root Extraction and Low Signal Cutoff Point .........................................7-9
(3)Setting10-segmentLinearizer ......................................................................................7-10
7.1.5 Setting Ratio bias/filter ...................................................................................... 7-12
7.2 Setting Input Sampling Period (Control Period) ............................................................. 7-13
7.3 Using4-wire
RTDasPVInput........................................................................................ 7-14
7.4 UsingLarger,
Smaller,Average,orDifferenceofTwotoFourInputsasPV ................. 7-15
7.5 Setting Remote Input Method ......................................................................................... 7-16
7.6 Adjusting
PV
RangeforLoopControlwithPVSwitchingorLoopControlwithPVAuto-
selector ........................................................................................................................... 7-17
7.7 Setting
PVSwitchingMethodsofLoopControlwithPVSwitching ................................ 7-18
Chapter8ControlFunctions
8.1 Setting Control Mode (CTLM) .......................................................................................... 8-1
8.1.1 Single-loop Control, Single-loop Heating/cooling Control, Single-loop Position
Proportional Control, and Single-loop Two-position Two-level Control ............... 8-1
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Single-loop Control Function Block Diagram ...................................................................8-2
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Single-loop Heating/cooling Control Function Block Diagram .........................................8-4
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Single-loop Position Proportional Control Function Block Diagram .................................8-6
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Single-loop Two-position Two-level Control Function Block Diagram ..............................8-8
8.1.2 Cascade Primary-loop Control ...........................................................................8-11
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Cascade Primary-loop Control Function Block Diagram ................................................8-12
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