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© 2017 Baker Hughes, a GE company, LLC. All rights reserved.

Masoneilan SVI II AP Installation and Maintenance Manual

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9. Operation and Maintenance

Principle of Operation

The SVI II AP Electro Pneumatic Digital Valve Positioner receives an electrical position setpoint
signal from a controller or other device and compares the position setpoint input signal to the
valve position. The difference between the position setpoint and position feedback is interpreted
by the position control algorithm. This is used to compute a new output pressure. This output
pressure is amplified by a pneumatic relay that drives the actuator. When the valve position
agrees with the value called for by the position setpoint input signal the system stabilizes with no
further movement of the actuator.

Figure 50 Block Diagram with I/P Converter and Pressure Sensor

Input Current

4 to 20 mA

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Содержание Masoneilan SVIII AP

Страница 1: ...Masoneilan SVI II AP Digital Positioner Advanced Performance Installation and Maintenance Manual Rev P BHGE Data Classification Public...

Страница 2: ...L UNDERSTANDING OF THE REQUIREMENTS FOR SAFE OPERATION OF MECHANICAL AND ELECTRICAL EQUIPMENT IN POTENTIALLY HAZARDOUS ENVIRONMENTS THEREFORE THESE INSTRUCTIONS SHOULD BE INTERPRETED AND APPLIED IN CO...

Страница 3: ...ions referring to that section in installation Added Cautions in Position Low Limit and Position Upper Limit Added text about the 4 20 retransmit galvanic isolation I 02 2014 Changed Simplified Instal...

Страница 4: ...tion on compliance voltage testing Changed references to HART Foundation to Field Comm Added Download Section for software Added Models and Features Comparison section Added BHGE Documentation Resourc...

Страница 5: ...nd Set Up 31 Overview 31 SVI II AP Dimensions and Weights 33 Pre Installation Issues 36 Storage 36 Unpacking 36 Installation Steps 36 Installation Notes 37 Before Powering Up 38 Mounting the Positione...

Страница 6: ...cal Display 71 Pushbuttons 72 Pushbutton Locks and Configuration Lock Jumper 73 Hardware Configuration Lock 73 Display Menus 74 NORMAL Operating Mode and MANUAL Mode Menus 74 Configure Menu 75 Calibra...

Страница 7: ...traints 113 Cabling and Interconnection Requirements 114 Capacitance vs Length of Cable for HART 114 HART Filter Required for Certain Control System Output Circuits 114 Split Range Applications 115 Mu...

Страница 8: ...cations and References 149 Physical and Operational Specifications 149 Spare Parts 158 11 Air to Open and Air to Close Actuators 163 Actuator Action 163 12 Installing an SVI II AP in a Natural Gas Env...

Страница 9: ...All rights reserved 16 Glossary 181 17 Burst Mode Operations 189 18 Device Status Diagnostics 191 19 Determining an SVI Positioner Compliance Voltage in a Control System 199 Compliance Test Setup 199...

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Страница 11: ...48 21 Bracket Configuration Strokes 5 2 50 and 3 6 49 22 Magnet Position with Valve Closed 49 23 Lever Alignment 50 24 SVI II AP Air Ports on Single Acting Positioner 53 25 SVI II AP High Flow Air Po...

Страница 12: ...ithout Load Configuration Not Allowed 132 53 SVI II AP Pneumatic Module with Single Acting Relay 134 54 SVI II AP High Flow Pneumatic Module with Single Acting Relay 135 55 Double Acting Pneumatic Rel...

Страница 13: ...ATA Settings 92 15 Compliance Voltage for Single Channel Zener with 22 AWG Cable 111 16 Compliance Voltage for Galvanic Isolator with 22 AWG Cable 112 17 Compliance Voltage for No Barrier with HART Fi...

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Страница 15: ...ation Safety Symbols SVI II AP instructions contain WARNINGS CAUTIONS labels and Notes where necessary to alert you to safety related or other important information Total compliance with all WARNING a...

Страница 16: ...fety equipment and practices to prevent the dropping of tools or equipment during installation Under normal operation compressed supply gas is vented from the SVI II AP to the surrounding area and may...

Страница 17: ...II AP High Flow unit can produce noise levels greater than 85 dBA Perform proper site monitoring and testing to verify the need for engineering or administrative controls to eliminate or reduce hazar...

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Страница 19: ...ude of options that fulfills the broadest range of applications It also communicates using the HART protocol The High Flow version is capable of 2 2 Cv air throughput An optional pushbutton and LCD di...

Страница 20: ...se the SVI II AP For the most recent software visit our SVI II AP web site at https www geoilandgas com file download search The SVI II AP DTM software and the Valve software comes with a trial versio...

Страница 21: ...re details on the use of ValVue software refer to the ValVue User s Guide Contact the factory or your local representative to obtain licensing information Masoneilan Software Download Download and Ins...

Страница 22: ...n save the download file to your laptop PC Don t install from the website 4 Open Windows Explorer and click the Windows Downloads folder NOTE If you have a previous install of ValVue3 you are prompted...

Страница 23: ...ilandgas com file download search and enter SVI II AP DTM in the search field red arrow in Figure 4 Figure 4 Download Center Search for Valve 3 The results appear Figure 4 2 Select Download below SVI...

Страница 24: ...top PC Don t install from the website 4 Open Windows Explorer and click the Windows Downloads folder NOTE If you have a previous install of the SVI II AP DTM you are prompted to uninstall first and th...

Страница 25: ...ontact outputs that are software configurable and an analog 4 20 mA position feedback SVI II AP Features The SVI II AP Digital Valve Positioner see Figure 1 on page 19 is suitable for installation ind...

Страница 26: ...n for Actuator Linkages with ValVue Software User Configurable Tight Shutoff at Adjustable Input Signal HART 5 6 or 7 depending on firmware version HART Remote Operation Calibration Configuration Diag...

Страница 27: ...onse Time X X Setpoint Offset X X Setpoint Error X X Position Overshoot X X Oscillation Frequency X X Lag X X Valve Friction X Spring Initial X Spring Final X Spring Rate X Table 3 Features vs Model S...

Страница 28: ...e Characterization X X Autostops Zero Span X X Live Tuning2 X X Autotune X X Positioner Signature Travel vs Setpoint X X Multiple Step Test Travel Setpoint vs Time X X Embedded Standard Signature X Hi...

Страница 29: ...ions Used in This Manual Conventions used in this manual are as follows Uppercase italicized letters are used when referencing a term used in the SVI II AP display window For example when indicating t...

Страница 30: ...tware configuration of a device This manual also includes information on background functionality and special circumstances useful in configuration and operation including diagnostics and their interp...

Страница 31: ...positioner that combines a local display with remote communication and diagnostic capabilities The SVI II AP is available with a variety of options to fulfill diverse applications and it communicates...

Страница 32: ...2017 Baker Hughes a GE company LLC All rights reserved 32 BHGE Figure 7 SVI II AP High Flow Components SVI II AP Cover Electronics Module Cover I P Module Relay I P Manifold...

Страница 33: ...le acting Figure 8 SVI II AP Single Acting Dimensions 122 55 mm 34 00 mm 1 90 mm 38 10 mm 47 58 mm 74 97 mm 96 56 mm 34 00 mm 23 00 mm 74 97 mm 203 93 mm 8 03 in 4 825 in 4 93 in 125 33 mm 1 34 in 0 0...

Страница 34: ...2017 Baker Hughes a GE company LLC All rights reserved 34 BHGE Figure 9 illustrates the dimensions and weight of the SVI II AP double acting Figure 9 SVI II AP Double Acting Dimensions...

Страница 35: ...l 35 2017 Baker Hughes a GE company LLC All rights reserved Figure 10 illustrates the dimensions and weight of the SVI II AP High Flow Figure 10 SVI II AP High Flow Dimensions Weight with display 9 36...

Страница 36: ...before installation See Determining an SVI Positioner Compliance Voltage in a Control System on page 199 The steps necessary to complete the SVI II AP installation and software setup are outlined in T...

Страница 37: ...s protection must conform to the data indicated on the label Wiring and conduit must conform to all local and national codes governing the installation Wiring must be rated for at least 85 C 185 F or...

Страница 38: ...ounting an SVI II AP on both rotary and reciprocating actuated valves The mounting process can be broken down into Attach the mounting bracket to the actuator Install the magnetic assembly rotary only...

Страница 39: ...tation greater than 60 refer to Rotary 90 on page 43 Required Tools The following tools are needed to complete the rotary valve installation 3 16 Hex Key with tee handle 5 32 1 2 Hex Key 3 mm 4 mm 5 m...

Страница 40: ...older The magnetic axis is the imaginary line through the center of both magnets 6 Rotate the magnet holder so that the magnet axis is vertical when the valve is in the closed position See Figure 12 a...

Страница 41: ...neilan SVI II AP Installation and Maintenance Manual 41 2017 Baker Hughes a GE company LLC All rights reserved Figure 12 Camflex ATO Mounting Front View Figure 13 Mounting Bracket on Air to Close Actu...

Страница 42: ...ng System Stroke Direction Magnet Orientation Valve Position SensorCounts Rotary 60 Rotation Clockwise or counter clockwise rotation 0 Closed 0 0 1000 60 Rotation Clockwise with increasing setpoint 45...

Страница 43: ...e total valve travel is less than 60 allowing a margin for tolerances the best accuracy is achieved by mounting the magnet with the axis vertical in the valve closed position The location of the magne...

Страница 44: ...in the normal upright position The mounting hole in the slotted opening of the mounting bracket must be left when facing the actuator with the actuator in the upright position 4 Move the valve to its...

Страница 45: ...SVI II AP lever is aligned with the indicating hole in the bracket Tighten both turnbuckle lock nuts See Figure 16 on page 45 12 Mount the SVI II AP to the bracket and secure with four M6 socket head...

Страница 46: ...ngth 6 and 10 0 5 0 8 12 7 20 32 mm A A 1 25 31 75 mm 10 0 5 0 8 12 7 20 32 mm A A 1 25 31 75 mm 10 0 8 1 5 20 32 38 1 mm B B 1 25 31 75 mm 16 0 5 0 8 12 7 20 32 mm B A 2 90 73 66 mm 16 0 8 1 5 20 32...

Страница 47: ...the SVI II AP from Reciprocating Valves WARNING Before carrying out any work on the device power off the instrument or make sure that the local conditions for potentially explosive atmosphere permit...

Страница 48: ...g helical spring washer 5 16 flat washer 5 16 and hex screw 5 16 18x44 5 1 75 LG Figure 19 85 86 Valve NOTE Mount all components snug enough to stay in place but loose enough to tap with rubber hammer...

Страница 49: ...using a For top two plain 5 16 flat washers helical spring washer 5 16 two hex nuts 5 16 18 regular b For bottom hex nut regular 1 4 20 and hex screw 1 4 20 UNC x 22 2 88 LG Figure 21 Bracket Configu...

Страница 50: ...fy lever is in correct position with valve closed Adjust rod ends if necessary Figure 23 Lever Alignment 7 Mount the SVI II with M6 1 screws 8 Cycle the valve open to close verifying proper components...

Страница 51: ...pe output pressure port one I for one side of the actuator and output pressure port two II for the other side of the actuator arrow only for High Flow 4 Air supply Supply pressure for single acting SV...

Страница 52: ...onnections for the SVI II AP Figure 24 located on bottom of the pneumatic block are tapped 1 4 NPT Output is toward the front supply is toward the back Two pressure gauges output on top supply on bott...

Страница 53: ...and Maintenance Manual 53 2017 Baker Hughes a GE company LLC All rights reserved Figure 24 SVI II AP Air Ports on Single Acting Positioner Figure 25 SVI II AP High Flow Air Ports on Single Acting Posi...

Страница 54: ...ied with respect to Output 1 When Output 1 is connected to deliver air to extend the actuator the action is ATC on a down seating valve NOTE For small actuators it may be necessary to use 1 8 tubing f...

Страница 55: ...y adjusted to 70 of the supply pressure This means that without any unbalance forces from the valve stem both outputs deliver roughly 70 of air supply pressure Although it is not recommended the stiff...

Страница 56: ...out any work on the device power off the instrument or make sure that the local conditions for potentially explosive atmosphere permit the safe opening of the cover CAUTION Refer to Output Switches on...

Страница 57: ...wires wire size 14 to 28 AWG 2 5 mm2 to 08 mm2 2 Connect the terminals from the 4 20 mA Out to the position retransmit input signal to and to See Figure 32 on page 64 To troubleshoot retransmit connec...

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Страница 59: ...l Effect sensor Because the only connection through the case is a magnetic field there are no seals or bearings to wear or corrode The rotation of the magnet is linked to the valve position by the mou...

Страница 60: ...e mounting has not been damaged in shipment for a pre mounted SVI II AP physically inspect the actuator linkage Record the following information for the configuration checkout 1 Valve Air to Open ATO...

Страница 61: ...TE For a reciprocating valve it is not necessary to remove the positioner to visually inspect the magnet setting and linkage of a reciprocating valve For reciprocating valves the adjustable link turnb...

Страница 62: ...to the positioner in accordance with the ValVue instructions a Ensure the positioner has been installed and set up with a HART Modem in a HART compliant communications loop if required install ValVue...

Страница 63: ...this procedure to check the air supply 1 Turn on the air supply 2 Adjust the filter regulator 3 Supply pressure must be a minimum of 10 psi 69 bar 68 97 kPa greater than the spring range of the actua...

Страница 64: ...ons to the electronics module Figure 32 Connections to Electronics Module via Terminal Board NOTE When an SVI II AP is turned on apply the air supply before applying the electrical input signal Table...

Страница 65: ...e a lot of pressure to move the lever 4 Insert the wire into the opening and release the lever Operational Checkout The operational checkout of the SVI II AP consists of 1 Connecting the SVI II AP to...

Страница 66: ...screws and remove the SVI II AP cover 2 Connect the terminals from the SVI II AP to the current source Connect to and to Figure 32 on page 64 3 Reinstall the cover and display 4 Adjust current to 12...

Страница 67: ...per shown in Figure 32 on page 64 When set to the secure position by shorting the two pin header configuration and calibration are not possible using the local interface or any HART communication tool...

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Страница 69: ...ess control Communicating critical information locally and remotely The four available communication tools listed below offer increasing levels of functionality Local Display and Push Buttons HART Han...

Страница 70: ...rited from any previously performed tuning Autotune or manual Once Aggressiveness and other tun ing values are determined they are stored in NVRAM The SVI II AP provides a user define Aggressiveness L...

Страница 71: ...optional device mounted pushbuttons and digital display shown in Figure 33 on page 72 Using the display you can read the input signal valve position and actuator pressure The display sequences from o...

Страница 72: ...rked permits you to move back through the menu structure to the previous item in the menu or decrement the value currently shown in the digital display When used to decrease a displayed value holding...

Страница 73: ...d by the buttons Several levels of software modifiable pushbutton locks are provided Hardware Configuration Lock Additional security is achieved using the hardware configuration lock jumper shown in F...

Страница 74: ...including HART commands to position the valve When you switch to the VIEW DATA or VIEW ERR menus from the NORMAL operate mode menu the valve is still in NORMAL mode and still responds to the 4 20 mA s...

Страница 75: ...Menu CONFIGuration Menu ATC Char act LINEAR EQ 30 1 EQ 50 1 EQ CAMFX QUICK50 CUSTOM PSI BAR KPA T S OFF T S ON ENGLISH FRENCH VALUE VALUE Menu Pressure Units Menu Tight Shutoff Menu Language Menu Air...

Страница 76: ...is open it is ATC Valve Characteristics The positioner must be configured to supply the correct relationship between input signal and valve position This is called the position characteristic Figure...

Страница 77: ...ch the actuator applies maximum seating force As the position signal drops toward the TS value SVI II AP moves the valve to the TS position value When the position reaches the TS value SVI II AP appli...

Страница 78: ...ies Model 21X2X or 41000 series Model 41X2X with EQUAL PERCENTAGE TRIM Linear Not Recommended 21000 series Model 21X2X or 41000 series Model 41X2X with EQUAL PERCENTAGE TRIM Equal Percentage LINEAR Ba...

Страница 79: ...run the find STOPS calibration again Figure 36 CALIBration Menu SETUP CALIBration Menu STOPS RUNNING STOP OP TUNE FAILURE STEP 1 3 STEP 2 3 CALIB VALUE VALUE SIG LOW VALUE VALUE STEP 3 3 If there is...

Страница 80: ...de the valve is locked in position The parameters viewable by pressing and are SINGLE or DOUBLE ATO or ATC LINEAR EQ 30 1 EQ 50 1 EQ CAMFX QUICK50 or CUSTOM PSI BAR KPA T S ON T S OFF SIGNAL LOW value...

Страница 81: ...rights reserved Figure 37 VIEW DATA Menu SINGLE OR DOUBLE PRESSURE UNITS T S ON OR T S OFF SIG HIGH VIEW DATA ACTUATOR TYPE VALVE CHARACTERISTICS LINEAR EQ 30 1 EQ 50 1 EQ CAMFX QUICK 50 CUSTOM PSI B...

Страница 82: ...cause of the problem and press to move to CLR ERR 4 Press to remove all error messages from memory 5 Move to the MANUAL menu If you have cleared the errors RESET no longer appears or 1 Press to move t...

Страница 83: ...tics Messages Diagnostic messages are viewed with VIEW ERR from the MANUAL Mode menu or from NORMAL Mode menu The VIEW ERR menu item allows you to read the current status information To clear the erro...

Страница 84: ...cal or pneumatic problem POS ERR The position error exceeds configured limit for more than configured time Warning after T1 and Failsafe Pneumatic mechanical config uration loose mag net KEYBOARD LCD...

Страница 85: ...g that a stack overflow had occurred Warning FCTRYMODE Factory mode failure Failsafe NVM ERR T An FRAM record and its copy both have CRC errors Warning REF VOLT Temperature compensated I P current is...

Страница 86: ...4 lists the fault codes and messages that appear on the display The table also explains the meaning of each message and a possible cause of the fault Return to Normal Operation Always return the posit...

Страница 87: ...When the DD is installed in a host communication device then the host can readily access all the information in the smart field device The SVI II AP registered DD will be available from the Field Comm...

Страница 88: ...tion Send this command using ValVue and a specific device will visually indicate the reception of the command You can clear Squawk from the LCD by pushing on any button on the SVI II AP HART 7 units c...

Страница 89: ...cause the valve to move Before proceeding be sure the valve is isolated from the process Keep hands clear from moving parts All configuration and calibration procedures are described using an SVI II A...

Страница 90: ...to Effect s of Changing PID Values Parameter Rise Time Overshoot Settling Time Increase Value Decrease Value Increase Value Decrease Value Increase Value Decrease Value P Decrease Increase Increase D...

Страница 91: ...y pressing the button 2 In the VIEW DATA menu press to examine the configuration 3 Press to scroll through and observe the factory configuration 4 Press to exit VIEW DATA 5 Press until MANUAL appears...

Страница 92: ...2 BHGE VIEW DATA Settings Table 14 VIEW DATA Settings Typical Setting Optional Setting SINGLE DOUBLE ATO ATC LINEAR EQ 30 1 EQ 50 1 EQ CAMFX QUICK 50 CUSTOM PSI BAR KPA 0 00 TS OFF 2 00 TS ON 4 00 SIG...

Страница 93: ...to Menu CONFIG CONFIG Charact Menu Language Menu Tight Shut off Menu Pressure Menu Units Displays tight shutoff value if turned on Press to change T S ON OFF status Press or to enter new value Press...

Страница 94: ...sly active mode either MANUAL or NORMAL operating mode If in NORMAL mode the display alternates between POS and SIGNAL indicating Normal mode If in MANUAL the display alternates between POS M and SIG...

Страница 95: ...ng the process DO NOT perform Auto Tune while the valve is controlling the process Correct for Over Travel WARNING During Calibration and Configuration the valve moves Keep hands clear Isolate the val...

Страница 96: ...e is Correct press to advance to the next item Not correct press to display value of SIG HI 5 Use and buttons to change the value 6 Press to return to menu and move to next item SIG HI must be between...

Страница 97: ...is a calibration tuning error FAILURE displays Press briefly and automatically return to the start of TUNE FAILURE If there is a calibration stops error FAILURE displays Press briefly and automatical...

Страница 98: ...HART Handheld Communicator to the SVI II AP as shown in Figure 42 Refer to the product manual for the HART Communicator included with the GE DPI620 or other HART communication devices Figure 42 SVI II...

Страница 99: ...YES 6 Change to MANual mode 7 Scroll to line 6 EXAMINE press 8 Scroll down to 5 read status 9 Read message 10 Press OK 11 Repeat OK to read all messages until the display returns to read status 12 Scr...

Страница 100: ...ker Hughes a GE company LLC All rights reserved 100 BHGE Emerson 475 Handheld Menu Structure The menu structure shown below starts in the upper left hand corner of the card Firmware 3 2 3 HART 5 4 1 1...

Страница 101: ...Setup 4 Tap Change Mode and change mode to Setup 5 Tap back arrow 6 Tap Find Stops You are led through a series of screens run the process 7 Tap Change Mode and change back to desired mode Run Open St...

Страница 102: ...cs 3 Tap Status Faults On this screen you can tap Current Faults to view only active faults Clear Current Faults to clear the faults The faults will reoccur if the cause is not fixed Historical Faults...

Страница 103: ...n Find Stops Run AutoTUNE View Calibration Parameters View Diagnostics Read and Clear Status Return to NORMAL mode NOTE Setting the input current span is unnecessary except for applications such as sp...

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Страница 105: ...ed to the positioner located remotely in the field The electrical characteristics of a current loop sending a signal to the field device are different from the apparently similar loop bring a signal t...

Страница 106: ...to an intrinsically safe circuit except on the safe area side of the barrier Do not operate a PC in a hazardous area without compliance with local and plant regulations NOTE A control circuit must be...

Страница 107: ...anywhere on the signaling circuit Cabling must be shielded to prevent electrical noise that would interfere with the HART tones with the shield grounded Shield must be properly grounded in only one pl...

Страница 108: ...practices The SVI II AP requires an electrical input from a 4 20 mA current source The SVI II AP input signal can carry a HART communication protocol signal from ValVue software and a HART modem or f...

Страница 109: ...al 109 2017 Baker Hughes a GE company LLC All rights reserved Figure 43 General Purpose and Explosion Proof Installation Hazardous Area Non Hazardous Area Power Supply 220 Ohms HART compliant control...

Страница 110: ...any LLC All rights reserved 110 BHGE Figure 44 Intrinsically Safe Installation Power Supply 220 Ohms HART Compliant Control System Output Card HART Modem SVI II AP ValVue Barrier Resistance Single Cha...

Страница 111: ...vices require MORE voltage at higher current The controller supplying the current has LESS voltage available at higher current The SVI II AP is noteworthy in that it requires LESS Voltage at higher cu...

Страница 112: ...al ground terminals are provided for use if grounding is required NOTE When an intrinsic safety barrier separates the SVI II AP from the modem or handheld a HART compliant barrier must be used Table 1...

Страница 113: ...ART Protocol requires that this impedance be at least 220 Ohms at the tone signaling frequencies HART compliant current sources are supplied with the correct Impedance Versus Frequency Characteristic...

Страница 114: ...s to preserve signal strength Refer to the standards for detailed calculation methods CAUTION Do not connect a HART modem and a PC to a control circuit unless the controller is HART compatible or has...

Страница 115: ...e compliance voltage The SVI II AP requires at least 9 0 V Two SVI II AP in series requires at least 18 0 V in addition to the voltage drops in wiring and other series devices Typical controller outpu...

Страница 116: ...rrent Mode pulldown as shown in Figure 45 2 Enter the Polling Address DCS systems offer multiple independent analog outputs driven by the same control signal to solve the voltage problem with split ra...

Страница 117: ...uirement and a high voltage output capacity Up to three isolators can be connected in series to a single controller output and each of them can drive a positioner Isolators are used to provide complia...

Страница 118: ...reserved 118 BHGE Figure 46 Split Range with Isolator HART Filter HART Modem ValVue Control System Output Card Power Supply Power Supply Hazardous Area Non Hazardous Area HART Address 1 HART Address...

Страница 119: ...tem the minimum span must be 5 mA the upper range value must be 8 mA to 20 mA the lower range values must be 4 mA to 14 mA Use the following procedure to ensure that the SVI II AP split range system i...

Страница 120: ...internal electronic components are isolated from ground Grounding the case is unnecessary for functional purposes but grounding the case may be necessary to conform to local codes Figure 47 Split Ran...

Страница 121: ...l display with pushbuttons is recommended when Explosion Proof methods are in effect Clarification of Terminology In Factory Mutual Research and Canadian Standards Association codes Explosion Proof me...

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Страница 123: ...he choice and application of intrinsic safety barriers requires special training For additional information consult MTL Instruments PLC Measurement Technology Limited www mtl inst com or R Stahl Inc w...

Страница 124: ...designed to transmit the HART signals in both directions Both passive Zener diode barriers and active galvanic isolators are offered with HART compliance Consult the manufacturer or refer to the docum...

Страница 125: ...und and provides sufficient compliance voltage The galvanic isolator must be certified by the manufacturer to be HART compliant if the HART connections are supported on the safe area side of the isola...

Страница 126: ...ol circuit unless the controller is HART compatible or has a HART filter Loss of control or a process upset can occur if the controller output circuit is not compatible with HART signals NOTE A contro...

Страница 127: ...with jurisdiction outside the European Union for intrinsic safety The product can be used outside the European Union e g in the USA on the sole authority of the buyer MACTek makes no claims of suitabi...

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Страница 129: ...setpoint input signal to the valve position The difference between the position setpoint and position feedback is interpreted by the position control algorithm This is used to compute a new output pr...

Страница 130: ...base module has no user repairable components Magnetic Position Sensor A non contact sensor uses a magnetic field to transfer the position through the wall of the housing without penetration to sense...

Страница 131: ...t be connected only to a DC circuit The switch terminal must be electrically positive with respect to the terminal If the terminal is electrically negative with respect to the terminal then the switch...

Страница 132: ...ck EMF protection to limit current to 1 A Figure 51 Switch Installation Drawing Correct Configuration with Load Without a load when the switch is on closed the external voltage would be dropped across...

Страница 133: ...VI II AP status is cleared 3 Position Error the switch is activated whenever a position error has occurred and is deactivated when the position recovers to the cor rect position 4 Tight Shutoff Active...

Страница 134: ...ressure on the flexure increases in response to an increase in the coil current Encapsulation of the coil provides protection from the environment Single Acting Pneumatic Relay SVI II AP The single ac...

Страница 135: ...from the I P and increases airflow as required for stable responsive actuator performance The single acting relay operates on any supply pressure that is at least 5 psi 345 bar 34 5 kPa above the req...

Страница 136: ...ble seat assembly The average of the two pressures is adjusted to equal 70 of the supply pressure The double acting relay is rated for supply pressure to 150 psi 10 35 bar 1035 kPa Figure 55 Double Ac...

Страница 137: ...ection shows the bleed slots where you would normally expect to see exhaust from the unit The slots are red boxed on the routing plate in Figure 56 with the relay I P and all other parts removed Figur...

Страница 138: ...nance and Repair The SVI II AP was designed based on a modular concept All components are interchangeable allowing for easy quick component swapping The only maintenance procedures recommended for the...

Страница 139: ...the SVI II AP If you have an SVI II AP with a solid cover and would like to replace the solid cover with a display cover follow the instructions below for removal and installation Removing the SVI II...

Страница 140: ...I AP housing 3 Connect the cable from the display into the LCD connector on the terminal board 4 Ensure that the gasket is in its groove in the housing 5 Place the cover over the screw mounts 6 Tighte...

Страница 141: ...A to the I P motor can permanently damage it The I P is rigidly assembled to a wire way sleeve that is a critical component for explosion proof service Use care to slide the sleeve from the pneumatic...

Страница 142: ...er off and put aside for installation I P Module Removal To remove I P module 1 Disconnect the I P wire from the terminal board 2 Using a 3 mm hex key remove the four screws from around the perimeter...

Страница 143: ...oes not require force Pneumatic Cover Installation To install the pneumatic cover 1 Place the cover over the pneumatic module 2 Using a 3 mm hex key install the six screws around the perimeter of the...

Страница 144: ...o Making Connections to the Terminal Board on page 65 of this manual for instructions Repair by Replacement Using ValVue and repair by replacement is the fastest method to service an SVI II AP See the...

Страница 145: ...Failsafe position It remains in that position until a technician clears the cause of the error and resets the instrument Reset is performed in two ways Connect a HART modem and ValVue and then click...

Страница 146: ...h the firmware revision red box Figure 62 Body Sticker Firmware versions can be viewed using the SVI II AP DTM on the Device Info tab The firmware revision is Hardware Rev Trans Cmd Rev Software Rev H...

Страница 147: ...e ValVue instructions to save the old configuration Follow the detailed instructions included with the software update using SMARTs Assistant When maintenance is complete reinstall the positioner and...

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Страница 149: ...idity 10 to 90 non condensing Humidity Effect Less than 0 2 after 2 days at 104 F 40 C 95 relative humidity Insulation Resistance Greater than 10 G Ohms at 50 RH MTBF 49 years based on MIL handbook ca...

Страница 150: ...amping symmetry for exhaust and fill time constants dead zone and magnitude characterization parameters Auto Tune is optimized for 5 step changes with neg ligible overshoot After the Auto Tune process...

Страница 151: ...plosion proof two lines of nine alphanumeric characters Display becomes unreadable between 0 C and 10 C Display is shutdown at 15 C Push Buttons External Three Explosion Proof Flameproof push buttons...

Страница 152: ...Standard Flow Air Supply Dry oil free 5 micron filtered air See ISA S7 3 Action Direct Acting Supply Pressure 20 100 psi max 1 4 6 9 bar Regulate 5 10 psi 345 bar 69 bar above actuator spring range D...

Страница 153: ...occur when air pressure returns after a period without air supply pressure Always set control set point to 0 and put the process control system in manual for smooth recovery from air supply failure L...

Страница 154: ...h recovery from air supply failure Loss of Input Signal Output 1 drops to low pressure Output 2 rises to supply pressure Sweet Natural Gas H2S content not more than 20 ppm Table 27 HART Device Informa...

Страница 155: ...acting psi 4 Setpoint Valve setpoint Percent 5 Signal Analog Input current signal mA 6 SW1 Switch 1 DO1 Percent 0 off 100 on 7 SW2 Switch 2 DO2 Percent 0 off 100 on 8 DI Digital Input Percent 0 off 1...

Страница 156: ...tion deviation range from setpoint greater than this value results in position error Percent 18 Open Stop Adjustment Upper limit for valve travel Percent 19 Percent of Range Analog Input current signa...

Страница 157: ...2 1 Single Acting 2 Double Acting c Pneumatics 1 Standard flow d Display 1 2 3 4 1 No Display or Pushbuttons 2 With Display and Pushbuttons 3 No Display or Pushbuttons Marine 4 With Display and Pushbu...

Страница 158: ...2017 Baker Hughes a GE company LLC All rights reserved 158 BHGE Spare Parts...

Страница 159: ...Masoneilan SVI II AP Installation and Maintenance Manual 159 2017 Baker Hughes a GE company LLC All rights reserved...

Страница 160: ...2017 Baker Hughes a GE company LLC All rights reserved 160 BHGE...

Страница 161: ...Item No Part Number Description Quantity 1 720017771 265 0000 SCR HEX SHCS M4 X 0 7 X 60 MICROSPHERES 593 PATCH 5 2 971886015 681 0000 O RING ID 9 19 0 362 WIDTH 2 62 0 103 REF NO 2 110 3 3 971886124...

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Страница 163: ...tor pressure signal that is caused by friction in typical actuators The scales are chosen to emphasize the relationships between input current and actuator pressure so that the failsafe valve position...

Страница 164: ...2017 Baker Hughes a GE company LLC All rights reserved 164 BHGE Figure 64 ATO and ATC Action with Linear Positioner Characteristics...

Страница 165: ...Masoneilan SVI II AP Installation and Maintenance Manual 165 2017 Baker Hughes a GE company LLC All rights reserved Figure 65 ATO and ATC Action in Percentage of Positioner Characteristics...

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Страница 167: ...ing an actuator vent cycle actuator pressure relief natural gas from the actuator is released into the area around the actuator vent port see images for actuator vent locations unless the unit is conn...

Страница 168: ...oximately 0 2 ft3 min 30 psi 6 sLp min of natural gas exhausts from the I P and is vented For indoor applications take this into consideration and provide circulation and venting The exhaust points ar...

Страница 169: ...ure buildup inside the vent gas piping can be minimized by keeping the overall vent gas piping length as short as possible while limiting the number of fittings elbows and short radius turns Keep the...

Страница 170: ...e to the exhaust and route it to The atmosphere if outside An outside area if inside Do not create back pressure on the relay The relay will not function properly with an exhaust pressure higher than...

Страница 171: ...ct a 3 4 tube to the exhaust and route it to The atmosphere if outside An outside area if inside Do not create back pressure on the relay The relay will not function properly with an exhaust pressure...

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Страница 173: ...alve supplying fuel to a combustion process is normally equipped with an Air to Open valve In other words the fuel flow is shut off if air fails Additional process precautions can be taken When the ai...

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Страница 175: ...II AP provides in its calibration software the ability to automatically tune the connected valve The auto tune feature has robust tuning parameters designed to tolerate variations in process characte...

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Страница 177: ...ogrammed to prevent valve seat erosion using the full actuator force to eliminate damaging leakage At a position setpoint of 2 for example this function allows full thrust to occur when the input sign...

Страница 178: ...llows seal or packing Total travel can also be used to estimate the remaining life of packings and seals Critical Service Cavitation Control Trim The time near closed of a valve with severe service wh...

Страница 179: ...nes stroking speed The Step Response test moves the valve between several points selected by you and graphically presents the dynamic response for each step The Positioner Signature test strokes the v...

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Страница 181: ...he autoTUNE method for estab lishing the best parameters for the PID algorithm ATC Air to Close The combination of a single acting actuator and the control valve where the valve is closed when air pre...

Страница 182: ...the setpoint and the valve position The pushbuttons allow selection of the custom characteris tic that must be downloaded as pairs of data using the HART com munications from a HART master ValVue off...

Страница 183: ...sus lift characteristic for improved control The theoretical curve is y a exln 1 a where a is 02 1 R and R 50 for a 50 1 equal percentage characteristic However the theoretical curve leaves the valve...

Страница 184: ...se of HART technology HART Filter A filter required with certain DCS systems that are not HART com pliant It allows the 4 20 mA output signal to pass from control sys tem to positioner but blocks HART...

Страница 185: ...ents prepared by NAMUR for its members among process control users for facultative utilization NAMUR issued a recommended accessory mounting for control valves NE 14 Anschlu von Schwenkantrieben an Ar...

Страница 186: ...beta the smaller the gain for small error Typical beta values for a valve position controller are between 9 and 0 Padj Valves often have significantly different response when filling versus exhausting...

Страница 187: ...ro and the position is recorded That position corresponds to 0 The output pressure is raised to its maximum based on supply pressure The position is recorded and corresponds to 100 Stroke The total ra...

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Страница 189: ...A from Moore Industries Tri Loop by Rosemount Turning on Burst mode in cases where it is not required affects the communication bandwidth Burst mode is not available for SVI II AP in HART 7 To see how...

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Страница 191: ...ration later firmware None 0 1 LowPower Check Function Input current 3 15 mA Increase input current 3 25 mA 0 2 ActuatorError Maintenance Unable to position the valve normally 1 Check for sufficient...

Страница 192: ...Power Check Function Input current is between 3 75 mA and 3 15 mA 1 Increase input current 3 85 mA Compare signal to LCD dis play 1 0 CalibrationFailed Maintenance Check calibration of the mA input si...

Страница 193: ...f etc 1 4 ExtDiagnostics Failed N A Information Only When running a Extended Actuator Signature SVI did not move the valve between the configured travel parameters i e 5 to 95 1 Selected speed is too...

Страница 194: ...ChecksumEr ror Failure Hardware failure 1 Remove power to the device for two minutes and restart the device 2 Clear the alarm using ValVue or HART Host 3 If the failure persists replace the complete d...

Страница 195: ...e Hardware failure 1 Remove power to the device for two minutes and restart the device 2 Clear the alarm using ValVue or HART Host 3 If the failure persists replace the complete device or electron ics...

Страница 196: ...put 2 Pressure Sensor Fault double acting 1 Remove power to the device for two minutes and restart the device 2 Clear the alarm using ValVue or HART Host 3 If the failure persists replace the complet...

Страница 197: ...to the device for two minutes and restart the device 2 Clear the alarm using ValVue or HART Host 3 If the failure persists replace the complete device or electron ics module 5 3 NVMWriteFault Failure...

Страница 198: ...e alarm using ValVue or HART Host 3 If the failure persists replace the complete device or electron ics module 5 6 SoftwareError Failure Hardware failure 1 Remove power to the device for two minutes a...

Страница 199: ...t through the SVI II AP and all the resistive devices in series with it Measuring the voltage across the SVI II AP terminals doesn t give the true available system compliance voltage as the positioner...

Страница 200: ...ter value until the loop current reaches 19 95 mA 7 Read the voltage across the potentiometer which should be 9 VDC This is the available system voltage at the maximum output Table 31 lists some compl...

Страница 201: ...reen explains the operations of the screen where you view process information change mode and change the setpoint Setup Wizard explains how to use the wizard to do the initial setup Calibration Autotu...

Страница 202: ...reen to change the relationship valve posi tion transmitter output and the valve open ing Configuration Actuator Screen to select the Air Action type Commissioning Services Switches Screen to set the...

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Страница 204: ...279 Corpus Christi Texas Phone 1 361 881 8182 Fax 88 1 361 881 8246 INDIA Mumbai Phone 91 22 8354790 Fax 88 91 22 8354791 SAUDI ARABIA Phone 966 3 341 0278 Fax 88 966 3 341 7624 Deer Park Texas Phone...

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