Honeywell UDC3200 manual Algorithm Set Up Group, Alg On-Off

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3.6 Algorithm Set Up Group

Function

Selections or

Prompt

Range of Setting

Lower Display

Upper Display

CONT ALG

 

 

ON-OFF

PID A

ATTENTION

PID A should not be used for Proportional only action; i.e., no integral (reset) action. Instead, use PD+MR with rate set to 0.

PID B

Parameter Definition

The CONTROL ALGORITHM lets you select the type of control that is best for your process.

ON/OFF is the simplest control type. The output can be either ON (100 %) or OFF (0 %). The Process Variable (PV) is compared with the setpoint (SP) to determine the sign of the error (ERROR = PV– SP). The ON/OFF algorithm operates on the sign of the error signal.

In Direct Acting Control, when the error signal is positive, the output is 100 %; and when the error signal is negative, the output is 0 %. If the control action is reverse, the opposite is true. An adjustable overlap (Hysteresis Band) is provided between the on and off states.

ATTENTION Other prompts affected: OUT HYST

DUPLEX ON/OFF is an extension of this algorithm when the output is configured for a Duplex control algorithm. It allows the operation of a second ON/OFF output. There is a deadband between the operating ranges of the two inputs and an adjustable overlap (hysteresis) of the on and off states of each output. Both Deadband and Hysteresis are separately adjustable. With no relay action the controller will read 50 %.

ATTENTION Other prompts affected: OUT HYST and

DEADBAND

PID A is normally used for three-mode control. This means that the output can be adjusted somewhere between 100 % and 0 %. It applies all three control actions—Proportional (P), Integral (I), and Derivative (D)—to the error signal.

Proportional (Gain)—Regulates the controller’s output in proportion to the error signal (the difference between Process Variable and Setpoint).

Integral (Reset)—Regulates the controller’s output to the size of the error and the time the error has existed. (The amount of corrective action depends on the value of proportional Gain.)

Derivative (Rate)—Regulates the controller’s output in proportion to the rate of change of the error. (The amount of corrective action depends on the value of proportional Gain.)

PID B—Unlike the PID A equation, the controller gives only an integral response to a setpoint change, with no effect on the output due to the gain or rate action, and it gives full response to PV changes. Otherwise controller action is as described for the PID A equation. See note on PID A.

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UDC3200 Universal Digital Controller Operator Manual

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Contents UDC3200 Universal Digital Controller Operator Manual Telephone WARRANTY/REMEDYContacts World Wide WebSymbol Definition Symbol DefinitionsContents TROUBLESHOOTING/SERVICE Page Operator Interface Function of Displays and KeysFunction of Displays and Keys Keys and Functions CE Conformity EuropeUDC3200 Universal Digital Controller Operator Manual Page Model Number Interpretation Pre-installation InformationControl Relays Control and Alarm Relay Contact InformationAlarm Relays Alarm Relay Contact InformationOverall Dimensions MountingPhysical Considerations Step Action Mounting MethodWiring Universal Output Functionality and Restrictions Wiring DiagramsPermissible Wiring Bundling Bundle No Wire FunctionsINU Wiring the Controller CalloutDetails Earth Ground Hot AC/DCLine Neutral Voltage L2/N RTD Input #1Input 2 Connections Input #2Time Duplex Time SimplexRelay Load L2/N PowerSupply Power Power Load Relay Load10 Open Collector Output L2/N Relay Load Time Duplex with a Dual Relay BoardUDC3200 Universal Digital Controller Operator Manual 04/08 15 RS-422/485 Communications Option Connections Digital Inputs 17 Auxiliary Output and Digital Inputs Option Connections12 + 26 +Configuration Prompt Hierarchy ConfigurationIntroduction Configuration ProcedureProcedure Configuration ProcedureTuning Set Up Group RSET2RPM CYC SEC CYC SX3 CYC2 SEC CYC2 SX3 Security Lockout Configuration is CompleteRSET2MIN 02 toAuto MAN Disable Enable RUN Hold Disable EnableSP SEL SP Ramp Set Up Group Strt SEG END SEG KeyresetEU/HR DN SP ProgSEG5RATE SEG6 SP SEG6TIME SEG2TIMESEG3RATE SEG4 SP SEG4TIMEAccutune Set Up Group Fuzzy Disable Enable Accutune TuneAT Error ALG ON-OFF Algorithm Set Up GroupALG PD+MR TimerINP ALG1 Start KEY Alarm LOW Disp TI REM TimePeriod 000 toMultiplier Divider with Square Root -The following Summer with Ratio and BIAS-The following formulaInput High Select with Ratio and BIAS-This selection Input LOW Select with Ratio and BIAS- This selectionCalc LO FCCMath K Calc HIALG1 Bias ALG1 INBALG1 INC PCT COOutput Set Up Group OUT ALGOUT RNG RLY Type RlystateHigh VAL Motor TICUR OUT LOW VALIN1 Type Input 1 Set Up GroupBias IN1 XmitterIN1 LOW RatioBurnout None EMISSIV101 to Input 2 Set Up Group IN2 TypeXMITTER2 Burnout Burnout Protection Sensor Break IN2 HighIN2 LOW Bias IN2EMISSIV2 PID Sets 2PV SW Control Set Up GroupPV Source Input ALG1 PID Sets Input Input AlgorithmPWR OUT PWR ModeRSP SRC None Input ALG1 Autobias SP TrackPCT/M DN ActionOUT Rate PCT/M UPMAN OUT Failsafe ModeDeadband FailmodeMinutes RPMNo Auxiliary Output Options GroupAUX OUT Auxiliary Output SelectionDIG INP1 No Digital Input SelectionsWas not previously started via To RUN Digital Input 2 Selections Digital Input 2 Combinations DIG 1COMBDIG INP2 DIG2COMBCommunications Group CSP Bias Shed SPUnits CSP RatoAlarms Set Up Group Beginning of Segment High AlarmLOW Alarm A1S1 EVA2S2TYPE A1S2 EVA2S1TYPE A2S1 EVDiagnost ALARM12Display Set Up Group Page Operator Interface Entering a Security CodeProcedure to Enter a Security Code Key errorIndividual key lockout Monitoring Your Controller 4.4.1 Annunciators AnnunciatorsALM 1 OUT 1 DI 1 Or MAN None, F or C Lower Display Key Parameter Prompts Viewing the operating parametersDiagnostic Messages Diagnostic MessagesDescription Functional Overview Block Diagram of the UDC3200 Controller Configuration check Tuning indicatorsAccutune Step Operation Press Result Procedure for Starting TuneTune for Simplex Outputs OperationTune for Duplex Heat/Cool Configuration Check for DuplexUsing Automatic Tune at start-up for Duplex Heat/Cool Using Manual Tune at start-up for Duplex Heat/Cool Using Blended Tune at start-up for Duplex Heat/CoolStep Operation Press Result Aborting Accutune Error Codes10 Procedure for Accessing Accutune Error Codes 11 Accutune Error CodesConfiguration Fuzzy Overshoot SuppressionHow it works INP1 RNG Background TestsBackground Tests EE FailCurfail RV LimitSegerr CAL MTROther symptoms Controller Failure SymptomsSales and Service Page Http//hpsweb.honeywell.com
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