Omega CN1166 manual AppendixC RaPID Control Feature

Page 80

AppendixC

RaPID Control Feature

The RaPID (Response - assisted PID) feature offers dramatic improvements in control quality compared with conventional PID techniques. It responds much more effectively than PID techniques to load conditions. With this feature, the instrument's response at start-up, during setpoint changes and during disturbances shows considerably reduced overshoot and much more shorter settling times (see below).

START-UP

PID

RaPID

DISTURBANCE

PID

RaPID

SETPOINT CHANGES

Setpoint

PIDRaPID

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Contents Page Page RAMP/SOAK Profile Volume Installation & Configuration Instructions Volume Operating InstructionsContents Unpacking Procedure PANEL-MOUNTING the ControllerConnections and Wiring Rear Terminal Connections Mains Line Input 2 24V Nominal AC/DC SupplyThermocouple Input RTD InputsLinear Inputs Remote Run/Hold InputRelay Outputs SSR Drive OutputsDC Outputs 11 RS485 Serial Communications LinkInternal Links and Switches Removing the Profile Controller from ITS HousingRemoving the Output 2/Output 3 Option PCBs Replacing the Instrument in ITS Housing REMOVING/REPLACING the Output 2/OUTPUT 3 Option PCBsSelection of Input Type and Output 1 Type Input TypePrimary Output Output 1 Type CPU PCB Relay/SSR Drive/Solid State OutputOutput 2 TYPE/OUTPUT 3 Type Entry Into Configuration Mode Hardware Definition CodeConfigurat ion Mode Wit h Hardw are Definit ion Code displayedOption Selection Hardware Definition Code Input/Output Type SelectionConfiguration Mode Parameters Wit h Hardw are Definit ion Code displayedParameter AL1 OFF, AL2 OFF Parameter Page Exit from Configuration Mode Base Mode Controller SET-UP Mode Program Definition Mode CREATING/EDITING a ProgramModbus Communications Alphabetic IndexBase Mode Display Sequence no Program RunningStarting a Program Putting a Program in HoldReleasing a Program from Hold Aborting a ProgramDisplay Sequence Program Running Read Only whilst Program is running/heldRaPID Control Feature PRE-TUNE FeatureEngaging Both PRE-TUNE and RaPID Features Indication of PRE-TUNE and RaPID StatusRaPID Status when Viewing the Hardware Definition Code Hardware Definition Code has the following significanceManual Control Press till front panel shows Press or to change display toController SET-UP Mode Lower display = Parameter Function Adjustment Range Default Value Parameter DetailsON/OFF Parameter Function Adjustment Range Default Value Power Alarm Operation Deviation Exit from Controller SET-UP Mode When this display showsProgram Definition Mode CREATING/EDITING a Program EntryCreating a Program Basic GuidelinesDefining Segments Rate Mode To make a Soak segmentDefining Segments Time Mode Program Options Guaranteed Soak Band T p o i n tSegment Event Status Press key To display Default Values and Adjustment Ranges Exit from Program Define ModeMessage Formats IntroductionModbus Functions Supported Read Coil Status Read n Bits 01/02 CRC16Read Holding Registers Read n Words 03/04 Force Single Coil Write 1 BitPreset Multiple Registers Write n Words 16 B Preset Single Register Write 1 Word 06 BLoopback Diagnostic Test Error and Exception Responses CRC16 CalculationReversed BIT Order Used Parameter Numbers Bit Parameters Controller Status ByteWord Parameters Controller ParametersInstrument ID Parameters Volume O077-4 Profiler Commands Profiler Status ByteUniversal Input GeneralInput Range Remote RUN/HOLD Input Option Output RelaySSR Drive/TTL Solid StateTypes Available Relay, SSR drive, solid state and DC Solid State SSR Drive/TTL Alarm Control Loop ControlPerformance Under Reference Conditions PerformanceReference Conditions S077-A Volume Physical EnvironmentalSee Performance Appendix B Summary of Displays Program Define Mode Parameters Configuration Mode Parameters AppendixC RaPID Control Feature AT OFF Alphabetical Index S077-IDX Volume Making a Soak Segment S077-IDX Volume Unpacking Procedure Word Parameters II/4-8