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Emerson 2468CD manual 3a-7, 3A.3.1 RELAY OUTPUT BOARD, 3a.3.1.1 Configuring the Relay Output Board

Models: 2468CD 2468CB

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3A.3.1 RELAY OUTPUT BOARD

Hydrastep 2468CB and 2468CD Manual

Relay Output Board Option

3A.3.1 RELAY OUTPUT BOARD

3a.3.1.1 Configuring the Relay Output Board

WARNING Mains voltages are present in this instrument when power is connected. De-energise before opening front cover.

1.Isolate the 2468 electronics enclosure from its power supplies.

2.Gain access to the relay output PCB and set the relevant switches for the required function.

3a.3.1.2 Electrode/Relay Selection (Relays RL1, RL2, RL3 & RL4) - SW1 To SW4

Four identical switches are provided on the relay board for electrode selection. Any of the electrodes, connected to the input board on which the relay board is mounted, can be selected as the input for any of the relays.

With one input board installed, any electrode connected to the system can be used as the source for any of the four relays. With two input boards installed, the relay board mounted on the input board connected to the odd numbered electrodes, accepts inputs from the odd numbered electrodes. Similarly, the relay board mounted on the input board connected to the even numbered electrodes, accepts inputs from even numbered electrodes. Table 3a.1 details switch selection.

	Switch SW1, SW2, SW3 or SW4						Electrode Selection
Settings for RL1 to RL4 respectively
		Switch Contacts				One Input	Two Input Cards
1		2	3		4	Card	Odd I/P Card	Even I/P Card
On		On	On		On	1	1	2
Off		On	On		On	2	3	4
On		Off	On		On	3	5	6
Off		Off	On		On	4	7	8
On		On	Off		On	5	9	10
Off		On	Off		On	6	11	12
On		Off	Off		On	7	13	14
Off		Off	Off		On	8	15	16
On		On	On		Off	9	17	18
Off		On	On		Off	10	19	20
On		Off	On		Off	11	21	22
Off		Off	On		Off	12	23	24
On		On	Off		Off	13	25	26
Off		On	Off		Off	14	27	28
On		Off	Off		Off	15	29	30
Off		Off	Off		Off	16	31	32

Table 3a.1 - Electrode selections for relays RL1 to RL4

Example: Single Input Board: Electrode 13 selected.

Dual Input Boards: Odd input board - Electrode 25 selected Even input board - Electrode 26 selected. OFF

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24685034

3a-7

Image 75

Emerson 2468CD, 2468CB manual 3a-7, 3A.3.1 RELAY OUTPUT BOARD, 3a.3.1.1 Configuring the Relay Output Board

Contents

Dual Power Supply Version Hydrastep 2468CB and 2468CDHydrastep Electronic Gauging SystemPOSSIBLE CAUSES See Note SYMPTOMSOLUTION See Note CATEGORYMobrey Customer Support HYDRASTEP START-UPPart 3 – Appendix About this manualPart 1 – Electrical/Electronic System Part 2 – Pressure PartsSymbol Meaning SYMBOLS USED IN THIS MANUAL AND ON THE UNITPage 24685034 PartHydrastep 2468CB & 2468CD Electronic Gauging System24685034 Pt.1-2DANGEROUS VOLTAGES ARE PRESENT IN 24685034 Pt.1-4Part Contents24685034 Pt.1-6Tables ContentsIllustrations Page NoHydrastep 2468CB and 2468CD Manual 004024685034 1.1WATER LEVEL MEASUREMENT 24685034 Hydrastep 2468CB and 2468CD Manual1.2HYDRASTEP 2468 ELECTRONIC GAUGING SYSTEM 1.2.1INPUT BOARDS1.2.2DISPLAY BOARD 1.3.2REMOTE DISPLAY UNITS 1.3SYSTEM OPTIONS1.2.3SYSTEM FAULTS 2468CB OR 2468CD 1.3.1OUTPUT BOARDSComments Table 1.1 - Upgrade paths and available optionsExisting System Available Options24685034 Hydrastep 2468CB and 2468CD ManualContents 2468CB & 2468CD Dual Power Supply Version2-32 FAULT ANALYSIS & CORRECTIVE ACTIONSPECIFICATION 2-23Number of 2.1INTRODUCTION2.2ELECTRODE CABLING SYSTEM 2.3ELECTRONIC ENCLOSURE2468CB & 2468CD Dual Power Supply Version Hydrastep 2468CB and 2468CD Manual24685034 2.3.1INPUT BOARD PCB 24680501 AND PCB 2.3.1.1Analogue Output Drive Capability2.3.2REMOTE DISPLAY DRIVE CAPABILITY 2.3.3.1Link LK1 2.3.3DISPLAY BOARD PCB2.3.4PCB INTERCONNECTIONS 2.3.3.2Links LK2, LK3, LK4 and LK5No. of Electrodes used Link Headers fitted2.4INSTALLATION 24685034 Hydrastep 2468CB and 2468CD ManualElectrode connections 2-10Number 2-11Water column connections for 16 electrodes Conductor2-12 2.4.2.3Connecting the Electrode Cable Assemblies to 2468 EnclosureAC Powered Units input board 2.4.2.4Hydrastep Power Supply Cables2-13 DC Powered Units input board 2-14Figure 2.4: Voltage Selection 240V or 2.4.2.5Analogue Output Connection 2-152.4.2.6Opto-IsolatedFault Output Connection 2-16Part of Display Board showing PL4 2.5.1INPUT BOARD PCB 24680501 OR 2.5SYSTEM CONFIGURATION2.5.1.1Analogue Output Configuration 2-17Input Board Option Board Removed 2.5.1.2Pulsed Output Setting2.5.1.3Electrode Error Configuration 2-18Offset voltages 2-19Table 2.2 - Number of electrodes being displayed 2.5.2.1Link LK1 Setting2-20 2.5.2DISPLAY BOARDHydrastep 2468CB and 2468CD Manual 2-212.5.2.3‘Switching Threshold’ Setting 2.5.2.4 ‘Compatibility’ Setting2-22 2-23 2.6FAULT ANALYSIS & CORRECTIVE ACTIONAnalysis and Corrective Action Faults2-24 IndicationIndication 2-25Indication 2-26Analysis and Corrective Action Faults2-27 IndicationAnalysis and Corrective Action Faults2-28 IndicationIndication 2-292.6.1.2Refitting the Input Board 2.6.1COMPONENT REPLACEMENT2-30 2.6.1.1Removing the Input Board 24680501 orMobrey 2.6.2PARTS LIST - HYDRASTEP 2468 CB & CD VERSIONS2-31 Item Description2-32 SPECIFICATIONPage No Wiring Diagrams for Dual Power Supply VersionContents 2-WD.124685034 Wiring Diagrams for Dual Power Supply Version2-WD.2 Hydrastep 2468CB and 2468CD ManualWiring Diagrams for Dual Power Supply Version 2-WD.324685034 24685034 Wiring Diagrams for Dual Power Supply Version2-WD.4 Hydrastep 2468CB and 2468CD Manual24685034 2-WD.524685034 Wiring Diagrams for Dual Power Supply Version2-WD.6 Hydrastep 2468CB and 2468CD Manual24685034 2-WD.724685034 Wiring Diagrams for Dual Power Supply Version2-WD.8 Hydrastep 2468CB and 2468CD Manual24685034 2-WD.92-WD.10 24685034Hydrastep 2468CB and 2468CD Manual 24685034 2-WD.1124685034 Wiring Diagrams for Dual Power Supply Version2-WD.12 Hydrastep 2468CB and 2468CD Manual24685034 2-WD.1324685034 Wiring Diagrams for Dual Power Supply Version2-WD.14 Hydrastep 2468CB and 2468CD Manual24685034 2-WD.1524685034 Wiring Diagrams for Dual Power Supply Version2-WD.16 Hydrastep 2468CB and 2468CD Manual2468 - Relay Output Board Option Contents3a-1 3a-2 3a-724685034 3A.2 INSTALLATION 3A.1 GENERAL DESCRIPTION3a-3 3a-4 3a.2.3.2 Relay Output Connections 3A.2.3 ELECTRICAL INSTALLATION3a-5 3a.2.3.1 PCB Interconnections3a-6 3A.3 RELAY BOARD CONFIGURATION3a.3.1.1 Configuring the Relay Output Board 3a-73A.3.1 RELAY OUTPUT BOARD 3a-8 3A.3.2 ALARM AND TRIPPING FACILITIES 3a-93a.3.2.1 Philosophy 3a-10 3a-11 3a-12 3a-13 3a-14 3a-15 3A.4 COMPONENT REPLACEMENT3a-16 3A.5 SPECIFICATIONDelay Relay Output Board Option Contents3b-1 24685034 SPECIFICATION3b-2 3B.53B.2 INSTALLATION 3B.1 GENERAL DESCRIPTION3b-3 3b-4 3b.2.3.2 Relay Output Connections 3B.2.3 ELECTRICAL INSTALLATION3b-5 3b.2.3.1 PCB Interconnections3b-6 3B.3 DELAY RELAY BOARD CONFIGURATION3B.3.1 DELAY RELAY OUTPUT BOARD 3b.3.1.1 Configuring the Delay Relay Output Board3b-7 3b-8 3b.3.1.6 Delay Circuit Configuration 3b-924685034 3b-10 3b.3.1.7 Configuring the Delay Circuit Split Pads3B.3.2 ALARM AND TRIPPING FACILITIES 3b-113b.3.2.1 Philosophy 3b-12 3b-13 3b-14 3b-15 3b-16 3b-17 3B.4 COMPONENT REPLACEMENT3b-18 3B.5 SPECIFICATIONContents 2468 Opto-isolatedOutput Board Option24685034 IllustrationsTables 3c-23C.2 INSTALLATION 3C.1 GENERAL DESCRIPTION3c-3 3c-4 3c.2.3.2 Opto-IsolatedOutput Connections 3c-53c-6 3C.3 OPTO-ISOLATEDOUTPUT BOARD CONFIGURATION3c-7 3c-8 3C.3.2 ALARM AND TRIPPING FACILITIES 3c-93c.3.2.1 Philosophy 3c-10 3c-11 3c-12 3c-13 3c-14 3C.4 COMPONENT REPLACEMENT3C.5 SPECIFICATION 3c-1524685034 24685034 3c-16Opto-isolatedOutput Board Option Hydrastep 2468CB & 2468CD ManualContents Remote Display Options 24683B, C, & DFigure 4.1REMOTE DISPLAY OPTIONS 4.2CONFIGURATION 4.2.2RECONFIGURING THE 24683D REMOTE DISPLAY 4.3.2INSTALLING THE 24683D WALL MOUNTED UNIT 4.3MECHANICAL INSTALLATIONcomply with the EMC directive 4.4ELECTRICAL INSTALLATION4.4.1STAR AND DAISY CHAIN CONNECTIONS StarDaisy Chain 4.4.2EXAMPLE OF A ‘STAR CONNECTED’ SYSTEM 4-10 4.4.3EXAMPLE OF A `DAISY CHAIN SYSTEMTerminal 4.4.4CONNECTING CABLES TO THE REMOTE DISPLAYService 4-114-12 4.4.5CONNECTING THE DISPLAY CABLES TO HYDRASTEP4-13 4.6FAULT ANALYSIS AND CORRECTIVE ACTION4.5SYSTEM OPERATION Fault4-14 Bottom half of faultFlickering Display 4-15Mobrey Part Number 4.7COMPONENT REPLACEMENT4-16 ItemREMOTE DISPLAY UNITS 4.8SPECIFICATIONDIMENSIONS POWER SUPPLY24685034 4-18Remote Display Options 24683B, C & D Hydrastep 2468CB & 2468CD ManualOperating Manual Hydrastep Pressure Parts24675030 Pt.2-2About this manual Part 2 - Pressure PartsPt.2-3 24675030 Pt.2-4INCORRECT R E M I N D E RELECTRODE INSTALLATION CORRECT24675030 Pt.2-6Pt.2-7 N O T I C E24675030 Pt.2-8Fault Repair and Commissioning Part 2 - Hydrastep Pressure PartsInstallation Procedures Unit Specifications - Hydrastep24675030 Pt.2-10Illustrations General IntroductionPRINCIPLE OF OPERATION WATER LEVEL INDICATIONGeneral Introduction 24675030Hydrastep Pressure Parts 1.2WATER LEVEL INDICATION 1.1PRINCIPLE OF OPERATION24675030 General IntroductionGeneral Introduction 24675030General Introduction 24675030Hydrastep Pressure Parts INSTALLATION OF WATER COLUMN Installation ProceduresContents SCOPE OF PROCEDURESInstallation Procedures 24675030Hydrastep Pressure Parts 2.2.4HANDLING PRECAUTIONS 2.1SCOPE OF PROCEDURES2.3INSTALLATION OF WATER COLUMN 2.2STORAGEdiscarded Figure 2.1 - Universal weld profile 2.4INSPECTION OF MECHANICAL INSTALLATION WORK 24675030 Installation ProceduresInstallation Procedures Figure 2.3 - Typical water column suspension24675030 WATER COLUMN COMMISSIONING OR RECOMMISSIONING Fault Repair and CommissioningContents BACKGROUNDFault Repair and Commissioning 24675030Hydrastep Pressure Parts 3.1.1SAFETY PRECAUTIONS 3.1BACKGROUND3.1.2WATER COLUMN ISOLATION 3.1.3ELECTRODE AND ELECTRODE SEAL LEAKS3.1.3.1Low Pressure Electrodes 3.1.3.2High Pressure Electrodes 3.2.1VENT AND DRAIN VALVE REPAIRS 3.2WATER COLUMN COMMISSIONING OR RECOMMISSIONING3.2.2WATER COLUMN TRANSIENT RESPONSE 3.2.3WATER COLUMN OR PIPEWORK BLOCKAGE3.2.4WATER COLUMN LIFE Fault Repair and Commissioning 24675030Hydrastep Pressure Parts Contents Unit DescriptionUnit Description Hydrastep Pressure Parts24675030 Figure 4.1 - Low pressure electrode 4.1LOW PRESSURE ELECTRODESFigure 4.2 - High pressure electrode 4.2HIGH PRESSURE ELECTRODES4.3WATER COLUMN L.P 4.4WATER COLUMN H.P 4.5WATER COLUMN H.P. SUPERCRITICAL Unit Description Hydrastep Pressure Parts24675030 5.1ELECTRODES Unit Specifications - Hydrastep5.2WATER COLUMNS SeriesSuper Pt.3-1 PartHydrastep 2468CA, CB, CC & CD Electronic Gauging SystemPt3-2 A.1 GENERAL CSA CertifiedHydrastep 2468 - Technical Manual Page Appendix A: CSA Approval Page Hydrastep Operating ManualEmerson Process Management Mobrey Ltd