3c-8 | Emerson 2468CB, 2468CD manual

3c-8

Opto-isolated Output Board Option

Hydrastep 2468CB & 2468CD Manual

3c.3.1.2 Electrode/Alarm Operation (output 1 function only) - SW6

Opto-isolated output from TR2 can be configured to receive either an electrode input or it can be used as the ‘system fault’ output. The two positions are detailed in Figure 3c.1 (on page 3c-6). When configured as the system fault output, the opto-isolated output is energised (low resistance) in the normal (non-fault) state and is de-energised(high resistance) for a fault condition.

The system fault output connections are shown in the next section.

3c.3.1.3 Opto-Isolated Output Activation (‘In Steam’ or ‘In Water’) - SW5

SW5 is a four-channel switch, one channel allocated per opto-isolated output. The choice presented by each channel switch is whether the output device is energised (low resistance) when the particular electrode is in water (W) or when that electrode is in steam (S). Switch SW5 is highlighted in Figure 3c.1 (on page 3c-6) to provide additional information on channel identity and the switch ‘electrode state’.

3c.3.1.4 System Fault Output

Opto 1 on each opto-isolated board can be configured to be a system fault opto-isolated output by setting SW6. When used as a system fault opto-isolated output the normal state of Opto 1 is low resistance and a fault state will cause Opto 1 to go into its high resistance state.

Opto 1 will only output faults detected by the input board onto which it is installed. With a dual power supply Hydrastep unit, this means it is necessary to used two opto-isolated output boards (one on each input board) to create a system fault output.

			To alarm annunciator or
			tripping device
TR2	1	PL 2	+ VE - VE	PL 2
TR2	1
	2
	3
Opto-output 1	4

Odd Electrodes	Note:	External power must
(RH Input Board)	Note:	External power must
		be applied as shown.
		See specification for
		power requirements

1

2

3

4

TR4

Opto-output 2

Even Electrodes (LH Input Board)

(Switch SW6 set for Fault Signal operation)

Note: Systems with a local display have an opto-isolated system fault available from the display board.

3c-8

24685034

Image 110

Emerson 2468CB, 2468CD manual 3c-8

Contents

Electronic Gauging System Hydrastep 2468CB and 2468CDHydrastep Dual Power Supply Version CATEGORY SYMPTOMSOLUTION See Note POSSIBLE CAUSES See Note HYDRASTEP START-UP Mobrey Customer Support Part 2 – Pressure Parts About this manualPart 1 – Electrical/Electronic System Part 3 – Appendix SYMBOLS USED IN THIS MANUAL AND ON THE UNIT Symbol MeaningPage Electronic Gauging System PartHydrastep 2468CB & 2468CD 24685034 Pt.1-2 DANGEROUS VOLTAGES ARE PRESENT IN Pt.1-4 Contents Part Pt.1-6 Page No ContentsIllustrations Tables 0040 1.1WATER LEVEL MEASUREMENT Hydrastep 2468CB and 2468CD Manual 1.2.2DISPLAY BOARD 1.2HYDRASTEP 2468 ELECTRONIC GAUGING SYSTEM1.2.1INPUT BOARDS 1.3.1OUTPUT BOARDS 1.3SYSTEM OPTIONS1.2.3SYSTEM FAULTS 2468CB OR 2468CD 1.3.2REMOTE DISPLAY UNITS Available Options Table 1.1 - Upgrade paths and available optionsExisting System Comments Hydrastep 2468CB and 2468CD Manual 2468CB & 2468CD Dual Power Supply Version 2-23 FAULT ANALYSIS & CORRECTIVE ACTIONSPECIFICATION 2-32 2.3ELECTRONIC ENCLOSURE 2.1INTRODUCTION2.2ELECTRODE CABLING SYSTEM Number of 2468CB & 2468CD Dual Power Supply Version 2.3.2REMOTE DISPLAY DRIVE CAPABILITY 2.3.1INPUT BOARD PCB 24680501 AND PCB2.3.1.1Analogue Output Drive Capability 2.3.3DISPLAY BOARD PCB 2.3.3.1Link LK1 Link Headers fitted 2.3.3.2Links LK2, LK3, LK4 and LK5No. of Electrodes used 2.3.4PCB INTERCONNECTIONS 2.4INSTALLATION Hydrastep 2468CB and 2468CD Manual 2-10 Electrode connections Conductor 2-11Water column connections for 16 electrodes Number 2.4.2.3Connecting the Electrode Cable Assemblies to 2468 Enclosure 2-12 2-13 AC Powered Units input board2.4.2.4Hydrastep Power Supply Cables Figure 2.4 Voltage Selection 240V or DC Powered Units input board2-14 2-15 2.4.2.5Analogue Output Connection Part of Display Board showing PL4 2.4.2.6Opto-IsolatedFault Output Connection2-16 2-17 2.5SYSTEM CONFIGURATION2.5.1.1Analogue Output Configuration 2.5.1INPUT BOARD PCB 24680501 OR 2-18 2.5.1.2Pulsed Output Setting2.5.1.3Electrode Error Configuration Input Board Option Board Removed 2-19 Offset voltages 2.5.2DISPLAY BOARD 2.5.2.1Link LK1 Setting2-20 Table 2.2 - Number of electrodes being displayed 2-21 2-22 2.5.2.3‘Switching Threshold’ Setting2.5.2.4 ‘Compatibility’ Setting 2.6FAULT ANALYSIS & CORRECTIVE ACTION 2-23 Indication Faults2-24 Analysis and Corrective Action 2-25 2-26 alternates 2-27Bottom half of alternating between water and steam green and Bottom half of 2-28State 5 contd 2-29 2.6.1.1Removing the Input Board 24680501 or 2.6.1COMPONENT REPLACEMENT2-30 2.6.1.2Refitting the Input Board Item Description 2.6.2PARTS LIST - HYDRASTEP 2468 CB & CD VERSIONS2-31 Mobrey SPECIFICATION 2-32 Page No Wiring Diagrams for Dual Power Supply Version2-WD.1 Wiring Diagrams for Dual Power Supply Version 2-WD.2 Wiring Diagrams for Dual Power Supply Version 2-WD.3 2-WD.4 2-WD.5 2-WD.6 2-WD.7 2-WD.8 2-WD.9 2-WD.10 Hydrastep 2468CB and 2468CD Manual 2-WD.11 2-WD.12 2-WD.13 2-WD.14 2-WD.15 2-WD.16 2468 - Relay Output Board Option 3a-1 3a-2 3a-7 3a-3 3A.2 INSTALLATION3A.1 GENERAL DESCRIPTION 3a-4 3a.2.3.1 PCB Interconnections 3A.2.3 ELECTRICAL INSTALLATION3a-5 3a.2.3.2 Relay Output Connections 3A.3 RELAY BOARD CONFIGURATION 3a-6 3A.3.1 RELAY OUTPUT BOARD 3a.3.1.1 Configuring the Relay Output Board3a-7 3a-8 3a.3.2.1 Philosophy 3A.3.2 ALARM AND TRIPPING FACILITIES3a-9 3a-10 3a-11 3a-12 3a-13 3a-14 3A.4 COMPONENT REPLACEMENT 3a-15 3A.5 SPECIFICATION 3a-16 Delay Relay Output Board Option 3b-1 3B.5 SPECIFICATION3b-2 3b-3 3B.2 INSTALLATION3B.1 GENERAL DESCRIPTION 3b-4 3b.2.3.1 PCB Interconnections 3B.2.3 ELECTRICAL INSTALLATION3b-5 3b.2.3.2 Relay Output Connections 3B.3 DELAY RELAY BOARD CONFIGURATION 3b-6 3B.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-9 3b.3.1.7 Configuring the Delay Circuit Split Pads 3b-10 3b-11 3b.3.2.1 Philosophy 3b-12 3b-13 3b-14 3b-15 3b-16 3B.4 COMPONENT REPLACEMENT 3b-17 3B.5 SPECIFICATION 3b-18 2468 Opto-isolatedOutput Board Option 3c-2 IllustrationsTables 3c-3 3C.2 INSTALLATION3C.1 GENERAL DESCRIPTION 3c-4 3c-5 3c.2.3.2 Opto-IsolatedOutput Connections 3C.3 OPTO-ISOLATEDOUTPUT BOARD CONFIGURATION 3c-6 3c-7 3c-8 3c.3.2.1 Philosophy 3C.3.2 ALARM AND TRIPPING FACILITIES3c-9 3c-10 3c-11 3c-12 3c-13 3C.4 COMPONENT REPLACEMENT 3c-14 3C.5 SPECIFICATION 3c-15 3c-16 Remote Display Options 24683B, C, & D Figure 4.1REMOTE DISPLAY OPTIONS 4.2CONFIGURATION 4.2.2RECONFIGURING THE 24683D REMOTE DISPLAY 4.3MECHANICAL INSTALLATION 4.3.2INSTALLING THE 24683D WALL MOUNTED UNIT 4.4ELECTRICAL INSTALLATION comply with the EMC directive Daisy Chain 4.4.1STAR AND DAISY CHAIN CONNECTIONSStar 4.4.2EXAMPLE OF A ‘STAR CONNECTED’ SYSTEM 4.4.3EXAMPLE OF A `DAISY CHAIN SYSTEM 4-10 4-11 4.4.4CONNECTING CABLES TO THE REMOTE DISPLAYService Terminal 4.4.5CONNECTING THE DISPLAY CABLES TO HYDRASTEP 4-12 Fault 4.6FAULT ANALYSIS AND CORRECTIVE ACTION4.5SYSTEM OPERATION 4-13 Bottom half of fault 4-14 4-15 Flickering Display Item 4.7COMPONENT REPLACEMENT4-16 Mobrey Part Number POWER SUPPLY 4.8SPECIFICATIONDIMENSIONS REMOTE DISPLAY UNITS 4-18 Hydrastep Pressure Parts Operating Manual Pt.2-2 24675030 Part 2 - Pressure Parts Pt.2-3 Pt.2-4 CORRECT R E M I N D E RELECTRODE INSTALLATION INCORRECT Pt.2-6 N O T I C E Pt.2-7 Pt.2-8 Unit Specifications - Hydrastep Part 2 - Hydrastep Pressure PartsInstallation Procedures Fault Repair and Commissioning Pt.2-10 WATER LEVEL INDICATION General IntroductionPRINCIPLE OF OPERATION 24675030 24675030 Hydrastep Pressure Parts 1.1PRINCIPLE OF OPERATION 1.2WATER LEVEL INDICATION General Introduction General Introduction Hydrastep Pressure Parts INSTALLATION OF WATER COLUMN Installation ProceduresSCOPE OF PROCEDURES STORAGE Installation Procedures 2.2STORAGE 2.1SCOPE OF PROCEDURES2.3INSTALLATION OF WATER COLUMN 2.2.4HANDLING PRECAUTIONS discarded Figure 2.1 - Universal weld profile 2.4INSPECTION OF MECHANICAL INSTALLATION WORK Installation Procedures Figure 2.3 - Typical water column suspension WATER COLUMN COMMISSIONING OR RECOMMISSIONING Fault Repair and CommissioningBACKGROUND Hydrastep Pressure Parts 3.1BACKGROUND 3.1.1SAFETY PRECAUTIONS 3.1.3.1Low Pressure Electrodes 3.1.2WATER COLUMN ISOLATION3.1.3ELECTRODE AND ELECTRODE SEAL LEAKS 3.1.3.2High Pressure Electrodes 3.2WATER COLUMN COMMISSIONING OR RECOMMISSIONING 3.2.1VENT AND DRAIN VALVE REPAIRS 3.2.4WATER COLUMN LIFE 3.2.2WATER COLUMN TRANSIENT RESPONSE3.2.3WATER COLUMN OR PIPEWORK BLOCKAGE Hydrastep Pressure Parts Unit Description Unit Description 4.1LOW PRESSURE ELECTRODES Figure 4.1 - Low pressure electrode 4.2HIGH PRESSURE ELECTRODES Figure 4.2 - High pressure electrode 4.3WATER COLUMN L.P 4.4WATER COLUMN H.P 4.5WATER COLUMN H.P. SUPERCRITICAL 24675030 Unit Specifications - Hydrastep 5.1ELECTRODES Super 5.2WATER COLUMNSSeries Electronic Gauging System PartHydrastep 2468CA, CB, CC & CD Pt.3-1 Pt3-2 CSA Certified A.1 GENERAL Hydrastep 2468 - Technical Manual Page Appendix A CSA Approval Page Hydrastep Operating Manual