Omega CN1166 manual REMOVING/REPLACING the Output 2/OUTPUT 3 Option PCBs

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2.2REMOVING/REPLACING THE OUTPUT 2/OUTPUT 3 OPTION PCBs

With the instrument removed from its housing:

1.Gently push the rear ends of the CPU PCB and Power Supply PCB apart slightly, until the two tongues on each of the Output 2/Output 3 Option PCBs become disengaged - see Figure 2-2B; The Output 2 Option PCB tongues engage in holes in the Power Supply PCB and the Output 3 Option PCB tongues engage in holes on the CPU PCB.

2.Carefully pull the required Option PCB (Output 2 or Output 3) from its connector (Output 2 Option PCB is connected to the CPU PCB and Output

3Option PCB is connected to the Power Supply PCB) - see Figure 2-2C. Note the orientation of the PCB in preparation for its replacement.

Adjustments may now be made to the link jumpers on the CPU PCB, the Output 2/Output 3 Option PCBs (if DC output) and (if fitted) the DC Output 1 PCB. The replacement procedure is a simple reversal of the removal procedure.

2.3REMOVING/REPLACING THE RS485 COMMUNICATIONS OPTION PCB OR REMOTE RUN/HOLD OPTION PCB

The RS485 Communications Option PCB or Remote Run/Hold Option PCB is mounted on the inner surface of the Power Supply PCB and can be removed when the instrument is removed from its housing (see Subsection 2.1) Figure 2-3 illustrates the removal/replacement procedure. It is not necessary to remove the Output 2/Output 3 Option PCBs to perform this procedure.

2.4REPLACING THE INSTRUMENT IN ITS HOUSING

To replace the instrument, simply align the CPU PCB and Power Supply PCB with their guides and connectors in the housing and slowly but firmly push the instrument into position.

CAUTION: Ensure that the instrument is correctly orientated. A stop will operate if an attempt is made to insert the instrument in the wrong orientation (e.g. upside-down). This stop must not be overridden.

S077-2

Volume I

2-3

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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 Thermocouple Input Mains Line Input2 24V Nominal AC/DC Supply RTD InputsRelay Outputs Linear InputsRemote Run/Hold Input 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 Modbus Communications Controller SET-UP ModeProgram Definition Mode CREATING/EDITING a Program Alphabetic IndexBase Mode Display Sequence no Program RunningReleasing a Program from Hold Starting a ProgramPutting a Program in 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 SSR Drive/TTL OutputRelay 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