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1. 3 MOUNTING AND ADJUSTMENT 3 MOUNTING AND ADJUSTMENT 3 1 Overview N When installing this instrument refer to Section 1 4 Precautions for Installation Area See Section 2 2 Standard Specifications for ambient conditions for the installation location WARNING If the VP200 is a flameproof model it is safe to open the cover of the main unit Adjust the zero point and the span with the cover opened Do however be careful not to allow hand tools to induce any sparks from impact When adjustment is complete close the cover securely to protect the instrument from water and dust As a rule do not open the terminal cover while the instrument is being powered If this is unavoidable use a gas detector or other alternative means to make sure no explosive gas is present when the cover is open 3 2 Mounting on Single Acting Type Actuator This section is concerned with current to pneumatic positioners intended for use in combination with linear control valves such as global valves using a diaphragm actuator or a single acting cylinder actuator as the drive unit This section applies only to those types of VP200 positioners having an L M P Q suffix code for the compatible actuator type For information on combining a VP200 having an N suffix code for compatible actuator type with a single acting actuator see Section 3 2 5 3 2 1 Mounting on Actuator IM 21B3C1 01E There are two methods for mounting
2. LV For the clamp use one of the standard clamps provided as an accessory to the valve The two types of levers shown in Figure 3 18 are provided as accessories with the VP200 select one according to the type of control valve to which it is to be attached F9173CA F0318E EPS Figure 3 18 Levers Note that the most widely used lever type is fitted with a spring for making the connection to the clamp and feedback lever mounting hardware lever for medium capacity actuators Part No F9173CA Therefore when using the lever for large capacity actuators used for diaphragm actuators with diaphragm diameters of 400 mm and up Part No F9173CJ you should remove this hardware from the medium capacity actuator lever for use with the large capacity lever see Figure 3 19 First remove the spring 4 from the lever Next remove component 1 and then remove components 2 and 3 from the lever Then mount these parts on the large capacity actuator lever F9173CJ F0319E EPS Figure 3 19 Lever Assembly Components 3 15 After determining which lever to use follow the procedure below and use the clamp and lever to connect the control valve stem and positioner These adjustments are important and will greatly affect the combined performance of the positioner and control valve 1 Insert the lever in the positioner shaft Do not tighten the locking screw yet 2 Attach the clamp to the control valve stem 3
3. Next manually adjust the air pressure to the actuator so as to bring the stem stroke to the 50 position 4 Insert the clamp pin into the slot on the lever Feedback lever F0320E EPS Figure 3 20 Mounting Clamp and Lever 5 Fasten the clamp to the valve at the position which makes the lever horizontal Feedback lever Valve stem Travel Range from the horizontal position Stem Stroke 5 to 50mm Rotary input 1 8 to 15 F0321E EPS Figure 3 21 Fastening the Clamp IM 21B3C1 01E 3 MOUNTING AND ADJUSTMENT 6 Next remove the front cover of the VP200 While holding the internal lever with your fingers fasten it securely to the feedback lever so that the internal lever is horizontal 7 Check again that the internal VP200 lever is horizontal Contact pin Feedback shaft Internal Stopper F0322E EPS Figure 3 22 Fastening the Lever A NOTE Please confirm that the feedback arm inside the positioner does not touch the internal stopper when applying supply air pressure manually to the actuator IM 21B3C1 01E 3 17 3 3 3 Stroke Adjustment After completing the position adjustment described in Subsection 3 3 2 make the stroke adjustment 1 Adjust so that the stem displacement strokes the valve to 50 when the current to pneumatic positioner input is at 12 mA 50 input 2 Next use a dial gauge to measure the valve stem displacements at an input of 8 mA 25 i
4. Draws attention to information essential for understanding the operation and features The warranty shall cover the period noted on the quotation presented to the purchaser at the time of purchase Problems occurred during the warranty period shall basically be repaired free of charge In case of problems the customer should contact the Yokogawa representa tive from which the instrument was purchased or the nearest Yokogawa office If a problem arises with this instrument please inform us of the nature of the problem and the circumstances under which it developed including the model specification and serial number Any diagrams data and other infor mation you can include in your communication will also be helpful Responsible party for repair cost for the problems shall be determined by Yokogawa based on our investigation The Purchaser shall bear the responsibility for repair costs even during the warranty period if the malfunction is due to Improper and or inadequate maintenance by the Purchaser Failure or damage due to improper handling use or storage which is out of design conditions Use of the product in question in a location not conforming to the standards specified by the Yokogawa or due to improper maintenance of the installa tion location Failure or damage due to modification or repair by the party except Yokogawa or who is requested by Yokogawa Malfunction or damage from improper relocation of the product in q
5. Please use the correct barrier corresponding to the certification number on the instrument s Single loop controller cs BARD 800 barrier terminal Or BARD 400 barrier terminal area VP200 Current to Pneumatic Positioner sets Supply air pressure LA Air filter F0401E EPS Figure 4 1 Intrinsically Safe Type Wiring IM 21B3C1 01E 4 WIRING AND PIPING 4 3 Wiring for General Purpose and Flameproof In struments 4 3 4 Cable Selection 4 3 2 Wiring IM 21B3C1 01E Wire using wires or cable having characteristics equal or superior to 600 V grade polyvinyl chloride insulated wire JIS C3307 f the wiring is to be routed through areas susceptible to noise pickup use shielded wiring f wiring through areas where the ambient temperature is especially high or especially low use wiring or cable that is appropriate for the environment WARNING If the VP200 is flameproof and the ambient temperature is 50 C or more use an external cable having a maximum allowable heat resistance of at least 70 C in consideration of the instrument s generation of heat or the cable s self heating f using the instrument in surroundings where there are noxious gases or liquids or where oil or solvents are present use wiring or cable that is sufficiently resistant to such substances 1 Route wiring so as to avoid the pickup of noise from large transformers motors or other electrically drive
6. Rc 1 4 G 1 2 or G 3 4 G9615AS G9615EG G9615EH 3 1 4 NPT 1 2 NPT or 3 4 NPT 3 LM P Q Rc 1 4 G 1 2 or G 3 4 G9615AR G9615ED G9615EF 2 10 to 50 mA 1 4 NPT 1 2 NPT or 3 4 NPT 2 DC N Rc 1 4 G 1 2 or G 3 4 G9615AS G9615EG G9615EH 3 1 4 NPT 1 2 NPT or 3 4 NPT 3 Note Suffix Code Applicable Control Valve L M M Diaphragm Actuator low capacity type Direct Single Acting Cylinder low capacity type Direct Diaphragm Actuator Direct Single Acting Cylinder Direct Double Acting Cylinder Diaphragm Actuator low capacity type Reverse Single Acting Cylinder low capacity type Reverse Diaphragm Actuator Reverse Single Acting Cylinder Reverse Apr 2002 Subject change without notice CMPL 21B3C1 01E Revision Record Manual No IM 21B3C1 01E Title VP200 Current to Pneumatic Positioner Style S3 Aug 1992 1st Edition New publication Feb 1996 2nd Edition Style change Style 1582 Apr 1997 3rd Edition Style change Style 52583 2 2 2 2 Change Description of Ambient Temperature 2 3 2 3 Add Operating Temperature Code 1 and 2 in Model and Suffix Codes 5 5 5 3 2 Add Caution about Control Relay CMPL CMPL 21B3C1 01E 3rd 4th Style S3 Page 3 Changes Item29 Part No of Control Relay Assembly Mar 1998 4th Edition 1 1 Add precaution for safety 4 1 2 4 6 Add precaution for safety 5 2 Add precaution for safety Apr 1999 5th Edition
7. air pressure connection becomes blocked use a small sharp pointed tool such as forceps or tweezers to remove the screen filter and replace with a new filter Screen filter B F0503E EPS Figure 5 3 Removing Screen Filter IN Side IM 21B3C1 01E 5 3 5 3 2 Replacing Control Relay 1 Reduce the supply air pressure to zero 2 Remove the main instrument cover 3 Remove the spring at the inside bottom of the unit and remove the minor feedback lever from the instrument see Figure 5 4 4 Next Use a Phillips screwdriver to remove the four mounting screws at the bottom front of the instrument see Figure 5 4 5 After pulling the control relay back with the operations in 3 and 4 take it out from below 6 To install a new relay attach the relay from below the instrument and use the front two screws to fasten it in position When mounting following the directions in 4 and 3 above in the reverse order of the removal procedure EL ABI gt mies OS Control relay mounting screws Minor feedback spring Minor feedback lever FO504E EPS Figure 5 4 Removing Control Relay 1 IM 21B3C1 01E IM 21B3C1 01E 5 MAINTENANCE Minor feedback lever Control relay F0505E EPS Figure 5 5 Removing Control Relay 2 NOTE The service life of control relay is depended on the control valve applications The replacing cycle of control relay under sever conditions suc
8. header can be discharged Air Supply Piping An air supply pipe connected to an instrument is branched from the upper part of an air header to prevent moisture entry Even if this is not possible an air supply pipe should be branched from the side of the air header i e it must not be branched from the bottom part of the header It is recommended that an air supply pipe be provided with a shut off valve so that individual instruments can be removed Air Filter A filter removes moisture oil and other contaminants that cannot be re moved by the main air supply system In general a cock installed at the bottom of a filter is opened to discharge moisture oil and other contami nants If the amount of moisture and oil is large increase the number of draining times The above noted methods and units are an example and there are other various methods and units Use a method and units suitable for the process type to supply clean dry air to instruments IM 21B3C1 01E Customer Model VP200 TEREE Maintenance Current to Pneumatic Positioner Parts List Style S3 Item Part No Qty Description 7 F9173BD Sprig for M N and Q 1 F9173BE 1 Sprig for L and P 8 F9172BS 1 Cover 9 Y9210XA 1 O Ring 10 G9307WE 2 Hex H Bolt M5 x 14 12 F9173BH 1 Cap 13 Y9801BU 2 Nut 14 Y9800SU 2 Spring Washer 15 F9173BK 2 Screw Note Suffix Code Applicable Control Valve L Diaphragm Actuator low capacity typ
9. siii Letti e eterne ute 4 3 4 3 3 Grounding ite red ae ea gea aes 4 7 IM 21B3C1 01E iii Be MAINIENANGE acocccidiaitbicxiia du dies bocinbxionfss irt ibrinl Grec bob esi on d nis diils 5 1 bil OVENWIOW aie on e n aee rette dua Ree aL A c e deu Ua uaa 5 1 5 2 Periodic Aspecto arco a T E enne 5 1 5 2 1 Cleaning the Restrictor ceccececseeeeeeeneeeeeeeeeeeeeeseeeeeteaeeenenees 5 1 5 2 2 Cleaning the Nozzle Flapper ccccceeseeceeeeeeeeeeeseeeeeeeeneeeeeeees 5 2 5 9 Replacement uod ir E ach cgeveacGadedaasiatey 5 3 5 3 4 Replacing Screen Filter seee 5 3 5 3 2 Replacing Control Relay sessssseeeee 5 4 6 TROUBLESHOOTING cc te orad rece eli iad d wr IE nx ccu d raa See ro cases neta 6 1 6 1 OVetVieW inet tota eoe ed bat itat en 6 1 6 2 Operating Principle ssesssssssseeeee nennen nnns 6 1 6 3 Troubleshooting Flow eeseeeneennennnnennn 6 4 INSTALLATION AND OPERATING PRECAUTIONS FOR JIS INTRINSICALLY SAFE EQUIPMENT Ex A01E INSTALLATION AND OPERATING PRECAUTIONS FOR JIS FLAMEPROOF EQUIPMENT eene Ex BO2E Appendix A AIR SUPPLY SYSTEM eese App A 1 Customer Maintenance Parts List CMPL 21B3C1 01E Revision Record IM 21B3C1 01E 1 HANDLING PRECAUTIONS 1 HANDLING PRECAUTIONS IM 21B3C
10. the span adjustment mechanism The moving leaf then stabilizes at that position where that force and the force on the moving leaf are balanced This series of actions results in a control valve displacement proportional to the input signal See Figure 6 1 and Figure 6 2 6 1 Control valve EE E Ean x AA y SH SIG Z VN N GF e AA ZA j Jm th a USA Control relay Output signal Supply air pressure F0601E EPS Figure 6 1 Operating Principle of the VP200 Electropneumatic Positioner Combined with Single Acting Actuator 6 2 IM 21B3C1 01E 6 TROUBLESHOOTING p awt EE CQ o VW Li A lt A A j TDA Zz B SS SS RY lt pea a dh V Span adjustment eed un wi Zero adjustment MUR Control relay Output signal 1 Supply air CENE Output signal 2 pressure F0602E EPS Figure 6 2 Operating Principle of the VP200 Electropneumatic Positioner Combined with Multi Acting Actuator IM 21B3C1 01E 6 3 6 3 Troubleshooting Flow Although this is an instrument in which failures will be infrequent as long as it is properly used malfunctions may result if there is any inadequacy in the preparations for its use such as in the establishment of the operating conditions No movement when input signal applied Is supply air pressure correct Supply air at proper pressure Is A M switch set to A Sw
11. the valve at the position which makes the lever horizontal Screw Feedback lever Valve stem Travel Range from the horizontal position Stem Stroke 5 to 50mm Rotary input 1 8 to 15 F0307E EPS Figure 3 7 Fastening the Clamp 6 Next remove the front cover of the VP200 While holding the internal lever with your fingers fasten it securely to the feedback lever so that the internal lever is horizontal 7 Check again that the internal VP200 lever is horizontal Contact pin i ze i i B Feedback shaft Feedback Arm Internal Stopper F0308E EPS Figure 3 8 Fastening the Lever N NOTE Please confirm that the feedback arm inside the positioner does not touch the internal stopper when applying supply air pressure manually to the actuator IM 21B3C1 01E 3 MOUNTING AND ADJUSTMENT 3 2 3 Stroke Adjusting After completing the position adjustment described in Subsection 3 2 2 make IM 21B3C1 01E the stroke adjustment 1 Adjust so that the stem displacement strokes the valve to 50 when the electropneumatic positioner input is at 12 mA 50 96 input 2 Next use a dial gauge to measure the valve stem displacements at an input of 8 mA 25 input and an input of 16 mA 75 input 3 Use the zero point adjustment mechanism and the span adjustment mechanism as shown in Figure 3 9 to adjust so that the output valve stroke is linear at 25 input and 75 input
12. time sensing the control valve opening and feeding it back to the controlling instrument or system 2 2 Standard Specifications Valves with which Usable Diaphragm Actuator Materials Case Paint Paint Color Pressure gauge case Input Signal Input Resistance Supply Air Pressure 140 to 400 kPa 1 4 to 4 kgf cm diaphragm single acting cylinder 200 to 700 kPa 2 to 7 kgf cm double acting cylinder Pressure Gauge Scale No gauge in standard Pressure gauge can be selected as option The supply pressure unit on the name plate for non gauge model is Pa Single acting cylinder Actuator Double acting cylinder Actuator Aluminum die cast Polyurethane resin baked finish Deep sea moss green Munsell 0 6GY3 1 2 0 or equivalent Stainless steel JIS SUS304 4 to 20 mA DC 10 to 50 mA DC 250 to 310 Q Input signal 4 to 20 mA DC 80 to 105 2 Input signal 10 to 50 mA DC Diaphragm Single acting Cylinder Double acting Cylinder Output Signal Supply Air Pressure Gauge Supply Air Pressure Gauge Pressure Scale Pressure Scale Pa calibration 140 to 400 kPa 0 to 400 kPa 200 to 700 kPa 0 to 1 MPa kgf cm calibration 1 4 to 4 0 kgf cm Oto4kgf cm 2 0 to 7 0 kgf cm Oto 10 kgf cm bar calibration 1 4 to 4 0 bar 0 to 4 bar 2 0 to 7 0 bar 0 to 10 bar P calibration 20 to 60 psi 0 to 60 psi 30 to 100 psi 0 to 150 psi T0201E EPS 2 1 2 2 I O Action Either increasing or dec
13. 1 01E A WARNING For installation wiring and maintenance in hazardous areas please follow INSTALLATION AND OPERATING PRECAUTIONS FOR JIS INTRINSICALLY SAFE EQUIPMENT or INSTALLATION AND OPERATING PRECAUTIONS FOR JIS FLAMEPROOF EQUIPMENT WARNING The coil section of the flameproof VP200 is made of resin filled explosion protected construction The technical standards for this flameproof construction require that the possibility of explosion resulting from a prospective short circuit current of up to 4000 A be prevented even for cases when external power supply circuits are short circuited accidentally Install a fuse or a circuit breaker having a breaking capacity of at least 4000 A in the higher order power line of either a controller or the output module connected to the VP200 The breaking capacity refers to the upper limit of current that can be cut off Normally a fuse or a circuit breaker having a breaking capacity of greater than 5000 A is used in power supply circuits Confirm that this is true with your factory No extra measures need be taken after the confirmation Note that the rated current of the VP200 in terms of explosion protection is 4 to 20 mA or 10 to 50 mA keep the input current of the VP200 within the appropriate range Refers to a current that flows when a fuse in a circuit is substituted with a connecting metal piece having virtually no impedance and the circuit is then shorted For AC circuits this cu
14. 4 After completing the adjustment in 3 apply 4 mA 0 96 input and 20 mA 100 96 input inputs and check the valve stroke Note Use a dial gauge if you require highly accurate adjustment Direct action DON Contact pin in front of feedback shaft Eac t i Zero adjustment ohut Zero adjustment High output Figure 3 9 Stroke Adjustment Span adjustment Reverse action IAN Low High Contact pin behind feedback shaft Contact pin Feedback shaft Horizontal lever F0309E EPS 3 7 3 2 4 Checking Characteristics After completing the stroke adjustment in Subsection 3 2 3 check the performance characteristics of the positioner and control valve combination Change the input signal from 4 mA to 20 mA in 25 increments and check linearity and hysteresis Since the performance of the positioner and control valve combination will be affected by factors such as friction in the gland packing of the control valve the characteristics of the combination may differ from those of the positioner alone When checking combined positioner and control valve performance always take into consideration that there are cases where there is some difference between the actuating force when the input is 0 and that when the valve is tightly closed 3 2 5 Connecting a VP200 Specified for Use with a Double Acting Actuator To use a multi acting specification VP200 in single acting servic
15. Format change i Add INTRODUCTION CONTENTS Change Precaution for Intrinsically safe construction instruments to Installation and Operating Precautions for JIS Intrinsically Safe Equipment Ex A01E Change Precaution for Flameproof construction instruments to Installation and Operating Precautions for JIS Flameproof Equipment Ex BO2E 1 1 Add Warning 1 2 Add C tick mark in Figure 1 1 2 2 Change Exds IIB H2 T6 to Exds IIC T6X 2 4 Add option code JF3 G11 and G21 and delete option code JF1 and JF2 3 1 Add Warning 4 3 Add Warning Change description in 4 3 1 and 4 3 2 5 4 4 Change part number in Table 4 1 CMPL CMPL 21B3C1 01E 4thb5th P3 Change parts number of item 20 Delete item 2 22 23 and 24 Add item 32 35 36 37 38 and 39 Nov 2000 6th Edition 1 2 Change Figure 1 1 3 6 Change Figure 3 7 Add NOTE 3 16 Change Figure 3 21 3 17 Add NOTE CMPL CMPL 21B3C1 01E 5th 6th Page 5 Correct Part No at Item 8 Apr 2002 7th Edition 4 2 Add Confirming the certification mark CMPL CMPL 21B3C1 01E 6th7th Page 5 Add Part No at Item 10 EEE ee Written by Transmitters Center Field Instruments Business Div Yokogawa Electric Corporation Published by Yokogawa Electric Corporation 2 9 32 Nakacho Musashino shi Tokyo 180 8750 JAPAN SSS eee SS eS ee J
16. G9601AN For Electrical Connection G 3 4 female option code G21 38 G9625BA 1 Wrench M3 39 E9135GY 1 Wrench M4 Table 1 Control Relay Assembly Part Number Actuator Type Code Operating Part Number Temperature For Option Limits Code Code X1 F9175MP F9175MQ F9175NL F9175NM F9175MA F9175MB F9175NA F9175NB CMPL 21B3C1 01E 5 OY F 6 0 CMPL 21B3C1 01E Jan 1996 Item Part No Qty X Description 1 1 Case Assembly 2 F9173bER 1 Gasket 3 F9173ES 1 Plate 4 G9307MR 5 Screw 5 20r3 Pressure Gauge see Table 2 6 G9612EJ 1 Plug PT 1 8 G9612EL 1 Plug 1 8 NPT 7 G9612EK 1 Plug PT 1 4 When Suffix Code L M P Q G9612EM 1 Plug 1 4 NPT 8 U0103FP 3 Screen 9 F9173CC 1 Lever Assembly When Option Code M1 F9173CA 1 Lever Assembly 10 F9173CJ 1 Lever When Suffix Code LV F9173WG 1 Lever LV51 F9173WJ 1 Lever LV52 F9173WL 1 Lever LV53 11 F9173BV 1 Card 12 F9173BC 1 Spring for M N Q F9173BD 1 Spring for L P 13 F9173BD 1 Spring for M N Q F9173BE 1 Spring for L P Table 2 Pressure Gauge Part Number item 5 option code GO Part Number Connections Input Applicable Output Signal aty Signal rra Air Electrical kgf cm Pa bar Connections Connections Calibration Calibration Calibration L M P Q Re 1 4 G 1 2 or G 3 4 G9615AR G9615ED G9615EF 2 4 to 20 mA 1 4 NPT 1 2 NPT or 3 4 NPT 2 DC N
17. NG 4 1 Piping 4 1 1 Supply Air A To facilitate operation and maintenance supply air must be clean and dry IMPORTANT Select the air supply equipment and supply air intake location with care so that moisture oil and other contaminants cannot get into the headers and supply piping and be passed along to the instruments The supply air pressure range for this instrument is 140 to 700 kPa 1 4 to 7 kgf cm The supply pressure must be controlled so that it remains within this range and does not vary more than 10 96 For air consumption values see Section 2 2 the standard specifications Example If supply pressure is 200 kPa 2 kgf cm the pressure should be controlled to between 180 and 220 kPa 200 kPa 10 1 8 to 2 2 kgf cm 2 kgf cm2 10 4 1 2 Air Supply Piping Connect the supply air piping to the supply pressure connection IN on this instrument Generally ether copper tubing with an outer diameter of 6 mm and inner diameter of 4 mm or outer diameter of 8 mm and inner diameter of 6 mm will be used for the piping and will be connected using a pneumatic tubing coupling After completing the piping check that there are no leaks 4 1 3 Output Piping IM 21B3C1 01E For a single acting cylinder or diaphragm actuator connect the output piping to OUT1 For a multi acting cylinder actuator connect the output piping to OUT1 and loure Generally either co
18. QEEIIG nz LUND 274 10 78 113 4 44 29 227 8 94 119 469 E ILII SOT eU RTI 38 1 50 F0201E EPS Figure 2 1 External Dimensions 2 5 IM 21B3C1 01E 2 6 Small Lever Part No F9173CA 61 5 2 42 70 2 8 SR 97 5 3 84 173 8 6 85 186 5 7 34 F0202E EPS Large Lever Part No F9173CJ 70 2 8 261 10 28 251 5 9 90 221 5 8 72 155 6 10 C 15 9 0 63 Li 12 7 0 5 FO203E EPS Lever for Motoyama 3800 Series Value Part No F9173CC Suffix Code M1 1 50 EEE 100 3 94 25 0 98 15 9 0 63 206 8 11 F0204E EPS IM 21B3C1 01E 2 OVERVIEW 2 6 Part Names Terminal box cover Positioner cover 4 Control relay F0205E EPS Figure 2 2 Part Names 1 Span adjustment Ground terminal Torque motor Terminal board u cimo e 9 A M AUTO MAN switch Minor feedback spring Electrical connections Zero adjustment Pressure gauge output air pressure 1 Option Pressure gauge output air pressure 2 Option Output flow Pressure gauge adjustment screw supply air pressure Option Applicable Control Valve Position of Pressure Gauge Supply Pressure Output Pressure 1 Output Pressure 2 Component Names 2 F0206E EPS Figure 2 3 2 7 IM 21B3C1 01E
19. Recommended Practice for Explosion Protected Electrical Installations in General Industries published in 1979 These certified apparatus can be used in hazardous locations where explosive or inflammable gases or vapours may be present Certified apparatus includes a certification label and an equipment nameplate with the specifications necessary for explosion requirements as well as precautions on explosion protection Please confirm these precautionary items and use them to meet specification requirements For electrical wiring and maintenance servicing please refer to Internal Wiring Rules in the Electrical Installation Technical Standards as well as USER S GUIDELINES for Electrical Installations for Explosive Gas Atmospheres in General Industry published in 1994 To meet intrinsically safe requirements equipment that can be termed an intrinsically safe apparatus must 1 Be certified by a Japanese public authority in accordance with the Labour Safety and Health Laws of Japan and have a certification label in an appropriate location on its case and 2 Be used in compliance with the specifications marked on its certification label equipment nameplate and precautionary information furnished Note Intrinsically safe apparatus satisfy their performance under specific conditions They are not always absolutely safe under every operational and environmental condition In other words they are not safe products
20. Sealing fitting Nipple Drain plug F0403E EPS Figure 4 3 Flameproof Metal Conduit Wiring IM 21B3C1 01E Wrench Union coupling Clamp nut Clamp ring Grand Washer Rubber packing Union cover i AN CAUTION _ Wrench Be sure to apply non hardening Lock nut sealant to the threads for water proofing Packing box b Adapter body O ring F0404 EPS Figure 4 4 Flameproof Gland Packing Adapter Installation Positioner terminal box Lock nut Nipple Sealing fitting Sealing dams main body Compound filling port plug 30 mm or more Sealing compound inorganic Metal conduit connection Insulated wire FO405E EPS Figure 4 5 Sealing Fitting Installation 4 6 IM 21B3C1 01E 4 WIRING AND PIPING YOKOGAWA 4 Current O Signa O Cuil ill P if SS Fa Se FT rna F0406E EPS Figure 4 6 Wiring 4 3 3 Grounding Use a Class 3 ground ground resistance 100 0 2 The terminal box has grounding terminals on the inside and on the outside Either terminal can be used 3 Use 600 V grade polyvinyl chloride insulated wiring for the ground wiring IM 21B3C1 01E 4 7 5 MAINTENANCE 5 MAINTENANCE 5 1 Overview The components of this instrument are unitized for easy maintenance This section describes procedures to clean and replace each of these components Since this is a high accuracy instrument read the fol
21. User s VP200 Manual VP200 Current to Pneumatic Positioner Style S3 IM 21B3C1 01E vigilantplant YOKOGAWA IM 21B3C1 01E f 7th Edition Yokogawa Electric Corporation INTRODUCTION Thank you for purchasing the Current to Pneumatic Positioner The Current to Pneumatic Positioner is correctly calibrated at the factory before shipment To ensure correct and efficient use of the instrument please read this manual thoroughly and fully understand how to operate the instrument before operating it B Regarding This Manual E Safety Precautions This manual should be passed on to the end user The contents of this manual are subject to change without prior notice All rights reserved No part of this manual may be reproduced in any form without Yokogawa s written permission Yokogawa makes no warranty of any kind with regard to this manual includ ing but not limited to implied warranty of merchantability and fitness for a particular purpose If any question arises or errors are found or if any information is missing from this manual please inform the nearest Yokogawa sales office The specifications covered by this manual are limited to those for the stan dard type under the specified model number break down and do not cover custom made instrument Please note that changes in the specifications construction or component parts of the instrument may not immediately be reflected in this manual at the time o
22. al Safety Appendix A AIR SUPPLY SYSTEM Appendix A AIR SUPPLY SYSTEM 1 2 Overview Pneumatic industrial instruments are one of the most maintenance free highly reliable industrial instrument systems and are in wide use Such features are fully demonstrated only when suitable service conditions where the characteristics of pneumatic instruments are sufficiently taken into account are established One of such service conditions includes an air supply system Pneumatic instruments require clean dry air and thus an aftercooler filter and air drier are installed after a compressor to prevent water oil and other contaminants from entering into the instruments Also care should be exercised as described below at service points Air Supply System 1 Example of Panel Mounting Instrument Air supply pipe for instrument Pressure gauge Regulator Shut off value High pressure air supply Slope approximately 10 mm per meter length 1 100 Clean dry air 3 way cock Drain valve supply Air filter F0AO1E EPS Figure 1 Example of Air Supply System for Panel Mounting Instru ment When air is to be supplied to multiple instruments it is recommended that two reducing valves are used in parallel as shown in Figure 1 Parallel arrangement protects instruments from interference even if one reducing valve is suspended due to clogging Also use of a three way cock as shown in Figure 1 allows any of air
23. ast 6 full turns and tighten the lock nut 4 3 e Insert the cable through the union cover the union coupling the gland the clamp nut the clamp ring one washer the rubber packing and the pack ing box in that order f Insert the end of the cable into the terminal box g Tighten the union cover to grip the cable When tightening the union cover tighten approximately one turn past the point where the cable will no longer move up and down Proper tightening is important If it is too tight a circuit break in the cable may occur if not tight enough the flameproof effective ness will be compromised CAUTION Tighten the union cover approximately one turn after the point where you can no longer shift the cable up and down by hand Take great care in this step since proper tightening is very important h Fasten the cable with tightening the clamp nut i Tighten the lock nut on the union cover j Connect the cable wires to each terminal Table 4 1 Types of Packing and Appropriate Cable Outer Diameters Wiring Port Appropriate Cable e Part Thread Diameter Outer Diameter mm Identifying Mark Number 8 10 16 8 10 alg 10 1 12 i6 02 OPE0IAM 10 12 22 10 12 G3 4 12 1 14 22 12 14 G9601AN 14 1 16 22 14 16 T0401E EPS 6 Follow the procedure below to mount the sealing fitting optional specifica tion used in metal conduit wiring a Install the sealing fitting on the instrument When in
24. ble adjusting potentiometers and mechanical adjustment screws CAUTION If intrinsically safe apparatus and safety barriers require maintenance service and checking a gas detector shall be used to ensure that there is no explosive gas in the location maintenance servicing shall be conducted in a non hazardous location 3 Repair Intrinsically safe apparatus and safety barriers shall be repaired by manufacturers 4 Prohibition of modifications and specification changes Do not attempt to make modifications or change specifications which may affect safety INSTALLATION AND OPERATING PRECAUTIONS FOR JIS FLAMEPROOF EQUIPMENT INSTALLATION AND OPERATING PRE CAUTIONS FOR JIS FLAMEPROOF EQUIPMENT 1 General Apparatus Certified Under Technical Criteria IEC compatible Standards The following describes precautions on electrical apparatus of flameproof construction hereinafter referred to as flameproof apparatus in explosion protected apparatus Following the Labour Safety and Health Laws of Japan flameproof apparatus is subjected to type tests to meet either the technical criteria for explosionproof electrical machinery and equipment standards notification no 556 from the Japanese Ministry of Labour hereinafter referred to as technical criteria in conformity with the IEC Standards or the Recommended Practice for Explosion Protected Electrical Installations in General Industries published in 1979 These certif
25. cerae aetas tc ere ied iata 3 7 3 2 4 Checking Characteristics ssssssssssseeeene 3 8 3 2 5 Connecting a VP200 Specified for Use with a Double Acting Actuator sessseeeeenee 3 8 3 2 6 Output Stability Adjustment sees 3 10 3 2 7 Split Range Adjustment sssssssseeeee 3 11 3 2 8 Switching Between Direct and Reverse Action 3 12 3 2 9 A M Transfer Mechanism eene 3 13 3 3 Mounting on a Double Acting Actuator sesseeeesss 3 14 3 3 1 Mounting on Actuator seeenm emen 3 14 3 9 2 Position Adsinar ent E rene 3 15 3 3 8 Stroke Adjustment sse 3 18 3 3 4 Checking Characteristics sess 3 19 3 8 5 Pressure Balance Adjustment sess 3 19 4 WIRING AND PIPING iiiter buses leise pete nad i aei RE urit iuf ti Ea iM n nad UAE 4 1 4C ZPIDIDOSSaLsiiertseitecritintiseesieeredsetordca dia mitimu tc Podio at coles ior ELIT 4 1 A SUpplysAlT ute e etel des erts 4 1 4 1 2 Am Supply PIpirig eee erem b eg dee eet 4 1 4 1 8 Output Piping esesssesseseeeeeenneeerennnnnnneeen nnns 4 1 4 2 Intrinsically Safe Type Wiring sse 4 2 4 3 Wiring for General Purpose and Flameproof Instruments 4 3 4 3 4 Cable Selection eessssessessseseeennenen nnns 4 3 4 32 WINING
26. e Direct Single Acting Cylinder low capacity type Direct M Diaphragm Actuator Direct Single Acting Cylinder Direct N Double Acting Cylinder P Diaphragm Actuator low capacity type Reverse Single Acting Cylinder low capacity type Reverse Q Diaphragm Actuator Reverse Single Acting Cylinder Reverse ights Reserved Copyri Yokogawa Electric Corporation CMPL 21 B3C1 01 E YOKOGAWA e QUIM ICI DS 7th Edition Apr 2002 YK Yokogawa Electric Corporation a 34 CMPL 21B3C1 01E Mar 1999 Mar 1999 Item Part No Qty X Description 1 1 Terminal Box Assembly 2 F9173AK 1 Terminal 3 G9307MN 2 Pan H Screw M3x10 5 Y9406LH 1 B H Screw M4x6 6 Y9406LU 1 B H Screw M4x6 7 Y9401WL 1 Toothed Lock Washer 8 G9330DP 1 Plug G 1 2 G9330DQ 1 Plug G 3 4 G9612EB 1 Plug 1 2 NPT G9612EH 1 Plug 3 4 NPT 13 F9173KA 1 Zero Adjust Assembly 14 F9173EL 1 Collar 15 Y9301BU 1 Nut 16 G9307MQ 2 Screw 20 F9173MV 1 Arm Assembly 25 Y9201XA 1 O Ring 26 E9135TB 1 Screw 27 E9135TC 2 Washer 28 F9173EY 1 Gasket 29 1 Control Relay Assemble see Table1 30 F9175MZ 1 Screw Assembly 31 Y9425JY 4 Pan H Screw M4x25 with spring lock washer and washer 32 F9173EV 2 O Ring 33 F9173BJ 1 Cover 34 Y9306JU 2 Pan H Screw M3x6 35 G9339AA 1 Bracket 36 Y9408ZU 1 Screw 37 Below 1 Cable Grand Assembly for JIS Flameproof option code JF3 G9601AM For Electrical Connection G 1 2 female option code G11
27. e install a stop plug in the OUT2 output connector at the bottom center of the VP200 Refer to the connection code information in the model and suffix code tables to select the correct type of stop plug the connector threads See the Model and Suffix codes in Section 2 3 Stop plug F0310E EPS Figure 3 10 Installing a Multi Acting VP200 on a Single Acting Actuator 3 8 IM 21B3C1 01E IM 21B3C1 01E 3 MOUNTING AND ADJUSTMENT Next turn the pressure balance adjustment screw in Figure 3 11 fully clockwise to set the positioner to function as a control relay for direct action For information on procedures for pressure balance adjustment screw operation see the description in Section 3 3 concerning pressure balance adjustment when installing for a Double acting actuator To set up as a reverse acting control relay see Subsection 3 2 9 Pressure balance adjustment screw FOS11E EPS Figure 3 11 Pressure Balance Adjustment 3 9 3 2 6 Output Stability Adjustment If the actuator capacity is too low or the gland packing friction is too high oscillations may occur in the valve and positioner air piping system If this happens use the output flow adjustment screw shown in Figure 3 12 to adjust the output air flow so as to eliminate the vibration When the instrument is shipped it is adjusted to the MAX position so that output flow is at maximum turn the output flow adjustment screw clockwise and adjust to a position wher
28. e are two methods for mounting the VP200 on an actuator one in which the VP200 is mounted directly on the actuator yoke and one in which a mounting bracket is used to mount the VP200 to the actuator Select your mounting method depending on whether your goal is to use a control valve whether you are using control valve accessories etc Generally the maker of the valve used for adjustment determines a standard mounting method when a positioner is installed with the control valve for details contact the manufacturer for your control valve The following describes the method used when mounting the positioner on the actuator yoke The VP200 is mounted directly on the actuator yoke In this case the VP200 is mounted with its front surface facing in the direction of process fluid flow As shown in the outline drawing Figure 2 1 the VP200 is mounted using two M8 screws with a 38 mm spacing If there are no holes for mounting the positioner to the yoke drill two 68 5 mm dia holes at 38 mm spacing F0317E EPS Figure 3 17 Mounting on Double Acting Actuator 3 14 IM 21B3C1 01E 3 MOUNTING AND ADJUSTMENT 3 3 2 Position Adjusting IM 21B3C1 01E After mounting the VP200 on the actuator next install the air piping between positioner and actuator When that work has been completed the next step is to mount the lever and clamp and adjust their positions For the lever use one of those provided as a optional accessory Option Code
29. e vibration is least If it is not possible to eliminate the vibration change the minor feedback spring inside the case If the actuator is a low capacity unit if the actuator capacity is 0 5 or less change to the green spring F9173BE if the actuator is a high capacity unit if the actuator capacity is 3 or more change to the black spring F9173BD see Figure 3 13 Output Output flow flow MIN Q MAX Output flow adjustment F0312E EPS Figure 3 12 Adjusting Stability 1 Me ji wti e Minor feedback spring Output flow adjustment screws F0313E EPS Figure 3 13 Adjusting Stability 2 3 10 IM 21B3C1 01E 3 MOUNTING AND ADJUSTMENT 3 2 7 Split Range Adjustment A split range is used to manipulate two valves with a single controller The VP200 enables you to adjust the split range between 50 and 100 In the example shown in Figure 3 14 control valve A is manipulated so that its opening is 100 at 4 mA input and 0 at 12 mA input while control valve B is manipulated so that its opening is 0 at 12 mA and 100 at 20 mA The split range adjustments are made using the VP200 zero adjustment and span adjustment mechanisms 100 Control valve A action Valve opening X Control valve B action 0 4 mA 12mA 20 mA Input to VP200 F0314E EPS Figure 3 14 Split Range Adjustment IM 21B3C1 01E 3 11 3 2 8 Switching Between Direct and Reverse Action 3 12 Switching bet
30. energy which is capable of causing ignition of a given explosive gas or vapour of a non intrinsically safe circuit into concerned intrinsically safe circuits 3 Associated apparatus Electrical apparatus in which there are both intrinsi cally safe circuits and non intrinsically safe circuits that can affect the safety of intrinsically safe circuits 4 Apparatus of category la Intrinsically safe electrical apparatus and safety barriers which are incapable of causing ignition of a given explosive gas or vapour with the appropriate safety factors such as when up to two countable faults are applied and in addition when non countable faults produce an onerous condition 5 Apparatus of category Ib Intrinsically safe electrical apparatus and safety barriers which are incapable of causing ignition of a given explosive gas or vapour with the appropriate safety factors such as when up to one countable fault is applied and in addition when non countable faults produce an onerous condition 6 Safety rating A rating to be designated to intrinsically safe apparatus as well as associated apparatus and is the maximum rating allowable for maintaining intrinsic safety of concerned intrinsically safe circuits 2 Ex AO01E INSTALLATION AND OPERATING PRECAUTIONS FOR JIS INTRINSICALLY SAFE EQUIPMENT 4 Caution on Combining Intrinsically Safe Apparatus and Safety Barriers 1 A combination of certified intrinsically safe apparatu
31. er note that apparatus certified under Technical Criteria in category ib shall be installed only in Zone 1 or 2 Safety barriers associated apparatus that are combined with these intrinsically safe apparatus shall be installed only in a non hazardous area In cases where safety barriers are installed in a hazardous area they shall be enclosed for example in a flameproof enclosure Ex A01E 3 Note 4 Hazardous areas are classified in zones based upon the frequency of the appearance and the duration of an explosive gas atmosphere as follows Zone 0 An area in which an explosive gas atmosphere is present continuously or is present for long periods Zone 1 An area in which an explosive gas atmosphere is likely to occur in normal operation Zone 2 An area in which an explosive gas atmosphere is not likely to occur in normal operation and if it does occur it will exist for a short period only 2 Ambient temperature limits for intrinsically safe apparatus Intrinsically safe apparatus shall be installed in a location where the ambient temperature ranges from 20 to 40 C for those certified under Technical Criteria or 10 to 40 C for those certified under the Recommended Practice for Explosion Protected Electrical Installations in General Industries 1979 However some field mounted intrinsically safe apparatus may be used at an ambient temperature up to 60 C So specifications should be checked before installin
32. f change provided that postponement of revisions will not cause difficulty to the user from a functional or performance standpoint For the protection and safety of the operator and the instrument or the system including the instrument please be sure to follow the instructions on safety described in this manual when handling this instrument In case the instrument is handled in contradiction to these instructions Yokogawa does not guarantee safety For the intrinsically safe equipment and explosionproof equipment in case the instrument is not restored to its original condition after any repair or modification undertaken by the customer intrinsically safe construction or explosionproof construction is damaged and may cause dangerous condition Please contact Yokogawa for any repair or modification required to the instrument The following safety symbol marks are used in this Manual AN WARNING Indicates a potentially hazardous situation which if not avoided could result in death or serious injury FD No 10088 KGV 7th Edition Apr 2002 YK All Rights Reserved Copyright 1992 Yokogawa Electric Corporation WARRANTY CAUTION Indicates a potentially hazardous situation which if not avoided may result in minor or moderate injury It may also be used to alert against unsafe practices IMPORTANT Indicates that operating the hardware or software in this manner may damage it or lead to system failure NOTE
33. female Applicable cable O D 10 to 16 mm Option Code JS1 JIS Intrinsically Safe JIS intrinsically safe i8aG5 Option Code NK NK Nippon Kaiji Kyokai Intrinsically Safe Option Code SCF L1 Special Color Finished on Positioner Cover Allows the paint color of only a positioner cover to be selectable by specify ing the color in the specification item with reference to GS 22D1F1 Option Code X1 Special Paint Epoxy resin baked coating Option Code A1 High Pressure Gauge for Diaphragm actuator or Single Cylinder 1 MPa 10 kgf cm 10 bar 150 psi Option Code SS External Screw Material is Stainless Steal Option Code GP With Pressure Gauge Pa Option Code GM With Pressure Gauge kgf cm Option Code GB With Pressure Gauge bar Option Code GE With Pressure Gauge psi Option Code GW With Double Scale Pressure Gauge Pa kgf cm Option Code NM Without Pressure Gauge Supply pressure unit kgf cm Option Code NB Without Pressure Gauge Supply pressure unit bar Option Code NE Without Pressure Gauge Supply pressure unit psi Option Code LV With Two Levers long and short Option Code M1 With Lever for Motoyama 3800 series valve IM 21B3C1 01E 2 OVERVIEW 2 5 External Dimensions Unit mm inch TREE e 106 5 4 19 I HR
34. flexible pipes ducts or trays shall be used for preventing the cable run outside the cable glands from damage To prevent explosive atmosphere from being propagated form Zone 1 or 2 hazardous location to any different location or non hazardous location through the protective pipe or duct apply sealing of the protective pipes in the vicinity of individual boundaries or fill the ducts with sand appropriately When branch connections of cables or cable connections with insulated cables inside the conduit pipes are made a flameproof or increased safety connection box shall be used In this case flameproof or increased safety cable glands meeting the type of connection box must be used for cable connections to the box 2 Flameproof Metal Conduit Wiring For the flameproof metal conduit wiring or insulated wires shall be used as recommended by the USER S GUIDELINES for Electrical Installations for Explosive Gas Atmospheres in General Industry published in 1994 For conduit pipes heavy gauge steel conduits conforming to JIS C8305 Standard shall be used Flameproof sealing fittings shall be used in the vicinity of the wiring connec tions and those fittings shall be filled with sealing compounds to complete sealing of the apparatus In addition to prevent explosive gases moisture or flame caused by explosion form being propagated through the conduit always provide sealing fittings to complete sealing of the conduit in the following locatio
35. g cylinder IM 21B3C1 01E 2 3 Model and Suffix Codes Model Suffix Code Description 2 OVERVIEW Style S3 4 to 20 mA DC 10 to 50 mA DC Diaphragm Actuator small capacity less than 0 5 4 Connections Single Acting Cylinder small capacity less than 0 5 1 M Diaphragm Actuator 1 Single Acting Cylinder 1 N 7n Double Acting Cylinder Po sse Diaphragm Actuator small capacity less than 0 5 4 2 Single Acting Cylinder small capacity less than 0 5 2 E Diaphragm Actuator 2 Single Acting Cylinder 2 ARIES Air Connection Rc1 4 Electrical Connection G1 2 female Miss Air Connection Rc1 4 Electrical Connection G3 4 female ie Air Connection 1 4NPT female Electrical Connection 1 2NPT female Ner Aue Air Connection 1 4NPT female Electrical Connection 3 4NPT female Operating Temperature Limits 10 to 80 C 30 to 40 C Option 1 IM 21B3C1 01E Direct increasing input signal increase actuator pressure 2 Reverse increasing input signal decrease actuator pressure TO203E EPS 2 3 2 4 Options 2 4 Option Code JF3 JIS Flameproof JIS flameproof Exds IIC T6X Option Code G11 Packing adapter for JIS Flameproof Electrical connection G1 2 female Applicable cable O D 8 to 12 mm Option Code G21 Packing adapter for JIS Flameproof Electrical connection G3 4
36. g intrinsically safe apparatus If the intrinsically safe apparatus are exposed to direct sunshine or radiant heat from plant facilities appropriate thermal protection measures shall be taken 6 Wiring for Intrinsically Safe Circuits In intrinsically safe construction safety shall be maintained as an intrinsically safe system involving intrinsically safe apparatus and safety barriers connected thereto and electrical wiring through intrinsically safe circuits interconnected between them In other words even when safety requirements are maintained individually by intrinsically safe apparatus and safety barriers they shall not be affected by electrical or magnetic energy caused by electrical wiring To make electrical wiring for intrinsically safe circuits you must a refer to the equipment configuration diagram and make electrical wiring properly b prevent intrinsically safe wiring from being contacted with non intrinsically safe wiring and separate the intrinsically safe circuit from other electrical circuits c prevent intrinsically safe wiring from being electrostatically and magneti cally affected by non intrinsically safe wiring d reduce wiring inductance and capacitance produced between the intrinsi cally safe apparatus and safety barrier where possible and use a shorter cable between the intrin sically safe apparatus and safety barrier than specified if the maximum permissible inductance of the cable is specified as
37. h as ON OFF application is recommended as follows whichever the actual repeat cycle over 500 000 times or the actual live over 6 years 5 5 6 TROUBLESHOOTING 6 TROUBLESHOOTING 6 1 Overview If the VP200 does not operate normally follow the troubleshooting flowchart in Section 6 3 to understand the instrument If you suspect serious trouble with the instrument contact a Yokogawa service representative 6 2 Operating Principle IM 21B3C1 01E A 4 to 20 mA or 10 to 50 mA current signal is input to the current to pneumatic positioner as the manipulated output signal from an electronic controller or other instrument This input signal drives a torque motor generating a torque proportional to the current signal If the input signal increases the movable flapper at the end of the torque motor moves away from the nozzle opening the air flow path As the gap between the nozzle and flapper opens the nozzle exhaust pressure falls and the input diaphragm inside the control relay moves to the right This then increases the air pressure at control relay output OUT1 This air pressure is output from the VP200 as the manipulated output pressure to the control valve actuator This change in the manipulated output pressure causes the control valve stem to move and that change in control valve position is fed back as an angular displacement by the feedback lever of the VP200 That displacement then displaces the feedback spring via
38. ied apparatus can be used in hazardous locations where explosive or inflammable gases or vapours may be present Certified apparatus includes a certification label and an equipment nameplate with the specifications necessary for explosion requirements as well as precautions on explosion protection Please confirm these precautionary items and use them to meet specification requirements For electrical wiring and maintenance servicing please refer to Internal Wiring Rules in the Electrical Installation Technical Standards as well as USER S GUIDELINES for Electrical Installations for Explosive Gas Atmospheres in General Industry published in 1994 To meet flameproof requirements equipment that can be termed flameproof must 1 Be certified by a Japanese public authority in accordance with the Labour Safety and Health Laws of Japan and have a certification label in an appropriate location on its case and 2 Be used in compliance with the specifications marked on its certification label equipment nameplate and precautionary information furnished 2 Electrical Apparatus of Flameproof Type of Explosion Protected Construction Ex BO2E Electrical apparatus which is of flameproof construction is subjected to a type test and certified by the Japanese Ministry of Labour aiming at preventing explosion caused by electrical apparatus in a factory or any location where inflammable gases or vapours may be present The flameproof cons
39. involved with factors such as chemical reactions geographical changes or the like other than affected by electric energy from the equipment itself Ex AO01E 1 2 Electrical Apparatus of Intrinsic Safety Type of Explosion Protected Construction Intrinsic safety construction is defined as a tested and verified construction of electrical machinery and equipment in which no spark arc or any thermal effect which may be produced in any part of that equipment is capable of causing ignition of explosive gases or vapours In other words electrical apparatus of this construction is intended to suppress electrical energy thereby preventing ignition of a given explosive gas atmosphere even though spark or high thermal effect occurs in the electric circuitry Intrinsically safe electrical apparatus generally comprise intrinsically safe apparatus installed in a hazardous location and a safety barrier associated apparatus installed in a non hazardous location aimed at preventing electrical energy from flowing into the electric circuitry of intrinsically safe apparatus However battery operated portable intrinsically safe apparatus or the like may be used alone 3 Terminology 1 Intrinsically safe apparatus Electrical apparatus in which all the circuits are intrinsically safe circuits 2 Safety barrier A specific type of associated apparatus which consists mainly of safety barrier elements and serves to limit the flow of excessive electrical
40. irectly to Actuator Yoke IM 21B3C1 01E IM 21B3C1 01E 3 MOUNTING AND ADJUSTMENT 2 Mounting Using Bracket In this method a bracket is mounted on the actuator yoke and the positioner is mounted on this bracket In this case the VP200 is positioned so that its front surface faces sideways from the flow This type of mounting greatly facilitates adjustment and maintenance of the positioner This is also a very efficient mounting method in terms of installation space and for adding other accessories As shown in the line drawing in Figure 2 1 the VP200 is mounted using two M8 screws with 38 mm spacing FO302E EPS Figure 3 2 Mounting VP200 to Actuator Using Bracket 3 2 2 Position Adjustment After mounting the VP200 on the actuator next install the air piping between positioner and actuator When that work has been completed the next step is to mount the lever and clamp and adjust their positions For the lever use one of those provided as a optional accessory Option Code LV For the clamp use one of the standard clamps provided as an accessory to the valve The two types of levers shown in Figure 3 3 are provided as accessories with the VP200 select one according to the type of control valve to which it is to be attached F9173CA F0303E EPS Figure 3 3 Levers Note that the most widely used lever type is fitted with a spring for making the connection to the clamp and feedback lever mounting hardware le
41. itch to A Is orifice dirty Clean orifice NO Has control relay failed Replace control relay Try replacing with spare electropneumatic converter FO603E EPS IM 21B3C1 01E 6 TROUBLESHOOTING Large output error Is supply air pressure correct Supply air at proper pressure Is instrument location subject to severe temperature veriations Heat insulate or provide ventilation Has control relay failed Replace control relay Replace with spare electropneumatic positioner F0604E EPS IM 21B3C1 01E 6 5 INSTALLATION AND OPERATING PRECAUTIONS FOR JIS INTRINSICALLY SAFE EQUIPMENT INSTALLATION AND OPERATING PRE CAUTIONS FOR JIS INTRINSICALLY SAFE EQUIPMENT Apparatus Certified Under Technical Criteria IEC compatible Standards and from RECOMMENDED PRACTICES for Explosion Protected Electrical Installations in General Industries published in 1979 1 General The following describes precautions on electrical apparatus of intrinsically safe construction hereinafter referred to as intrinsically safe apparatus Following the Labour Safety and Health Laws of Japan intrinsically safe apparatus is subjected to type tests to meet either the technical criteria for explosionproof electrical machinery and equipment standards notification no 556 from the Japanese Ministry of Labour hereinafter referred to as technical criteria in conformity with the IEC Standards or the
42. l conduits and cables for damage or corrosion and other mechanical and structural defects b Zero and span adjustments These adjustments should be made only to the extent that they can be conducted from the outside without opening the equipment cover In doing this great care must be taken not to cause mechanical sparks with tools 2 Repair If the flameproof apparatus requires repair turn off the power and transport it to a safety non hazardous location Observe the following points before attempting to repair the apparatus a Make only such electrical and mechanical repairs as will restore the apparatus to its original condition For the flameproof apparatus the gaps and path lengths of joints and mating surfaces and mechanical strength of enclosures are critical factors in explosion protection Exercise great care not to damage the joints or shock the enclosure b If any damage occurs in threads joints or mating surfaces inspection windows connections between the transmitter and terminal box shrouds or clamps or external wiring connections which are essential in flameproofness contact Yokogawa Electric Corporation CAUTION Do not attempt to re process threaded connections or refinish joints or mating surfaces c Unless otherwise specified the electrical circuitry and internal mechanisms may be repaired by component replacement as this will not directly affect the requirements for flameproof apparatus howe
43. lowing description carefully before performing maintenance When calibrating this instrument read the installation and adjustment descriptions in Chapter 3 5 2 Periodic Inspection In order to maintain proper plant operation the instrument should be inspected periodically Check the following Are there any visible abnormalities in external appearance Are there any pressure leaks at the instrument or in the piping near it Has any drainage liquid debris or oil accumulated in the air supply system or on its surfaces In particular periodically clean the nozzle flapper and orifice which are most susceptible to contamination The following describes the procedure for cleaning these parts 5 2 1 Cleaning the Restrictor Use a flat brade screwdriver to remove the orifice shown in Figure 5 1 and use a 0 3 mm diameter wire to clean Restrictor F0501E EPS Figure 5 1 Cleaning Restictor IM 21B3C1 01E 5 1 5 2 2 Cleaning the Nozzle Flapper If the nozzle flapper is dirty wrap cloth around forceps and wipe lightly N NOTE If the nozzle flapper is removed the instrument must be readjusted clean these parts without removing lt i ER Coes Wile L4 Ye ii Doc NE Nozzle flapper F0502E EPS Figure 5 2 Nozzle Flapper Area 5 2 IM 21B3C1 01E 5 MAINTENANCE 5 3 Replacement 5 3 1 Replacing Screen Filter When the mesh filter in the supply air pressure connection or output
44. mal vibration and shock Storage temperature and humidity within the limits below A location at room temperature and normal humidity 25 C 65 96 R H is preferable Temperature 10 to 60 C Humidity 80 max 2 Store this instrument packed in the way that it was packed when it was received from the factory 4 2 IM 21B3C1 01E 1 HANDLING PRECAUTIONS 1 4 Precautions for Installation Area IM 21B3C1 01E To ensure stable operation over the longest possible time take the following considerations into account when selecting the location in which to install this instrument 1 Ambient Temperature As much as possible avoid installing this instrument in a location subject to large gradients and variations in temperature If the instrument will be exposed to radiant heat from other instruments etc use heat insulation and take steps to provide adequate ventilation 2 Atmospheric Conditions As much as possible avoid installing this instrument in a location in which it will be exposed to corrosive atmospheres If using the instrument in a corrosive atmosphere take steps to provide adequate ventilation OVERVIEW 2 OVERVIEW Functional Description The VP200 current to pneumatic positioner is a valve positioner designed especially to receive a control signal from an electronic controller or DCS convert this signal to a pneumatic pressure signal to drive a pneumatically actuated control valve while at the same
45. n equipment 2 Before wiring remove the terminal box cover and remove the dust protec tor plug from the wiring connection To open the terminal box cover of a flameproof special explosion protected type positioner use an Allen wrench to loosen the set screw and then remove the cover After completing wiring be sure to retighten the set screw after closing the cover 3 Crimp type terminal lugs R1 25 5 or R2 5 are recommended for electrical wiring end treatment JIS C2805 4 For water resistance and for external protection the use wiring conduit or ducts is recommended For the external wiring for flameproof special explosion protected positioners you should use metallic conduit installation providing flameproof explosion protected performance or cable installation using flameproof packing adapters see INSTALLATION AND OPERATING PRECAUTIONS FOR JIS FLAMEPROOF EQUIPMENT at the end of this manual 5 Follow the procedure below to install the flameproof packing adapter optional specification used for cable installations see Figure 4 4 a Loosen the fastening hardware and remove the terminal box cover b Measure the outside diameter of the cable to within 0 1 mm in two direc tions c Average the two measured values and select from Table 4 1 the packing with the inside diameter closest to that average d Screw the flameproof packing adapter into the terminal box until the O ring touches the terminal box wiring port at le
46. nput and an input of 16 mA 75 input 3 Use the zero point adjustment mechanism and the span adjustment mechanism as shown in Figure 3 9 to adjust so that the output valve stroke is linear at 25 input and 75 input 4 After completing the adjustment in 3 apply 4 mA 0 input and 20 mA 100 input inputs and check the valve stroke Note Use a dial gauge if you require highly accurate adjustment Direct CO Low Contact pin in front of feedback shaft o PIO Zero adjustment out Zero adjustment High output Figure 3 23 Stroke Adjustment Span adjustment High Contact pin behind feedback shaft Reverse Contact pin Feedback shaft Horizontal lever F0323E EPS IM 21B3C1 01E 3 MOUNTING AND ADJUSTMENT 3 3 4 Checking Characteristics After completing the stroke adjustment in Subsection 3 3 3 check the performance characteristics of the positioner and control valve combination Change the input signal from 4 mA to 20 mA in 25 increments and check linearity and hysteresis Since the performance of the positioner and control valve combination will be affected by factors such as friction in the gland packing of the control valve the characteristics of the combination may differ from those of the positioner alone When checking combined positioner and control valve performance always take into consideration that
47. ns a In the boundaries between the hazardous and non hazardous locations b In the boundaries where there is a different classification of hazardous location For the connections of the apparatus with a conduit pipe or its associated accessories G type parallel pipe threads JIS B0202 shall be used to provide a minimum of five thread engagement to complete tightness In addition since these parallel threads do not have sealing property nonhardening sealant such as liquid gaskets shall thus be applied to those threads for ensuring waterproofness If metal conduits need flexibility use flameproof flexible fittings 6 Maintenance of Flameproof Apparatus To maintain the flameproof apparatus do the following For details see Chapter 10 MAINTENANCE OF EXPLOSION PROTECTED ELECTRICAL INSTALLATION in the USER S GUIDELINES for Electrical Installations for Explosive Gas Atmospheres in General Industry 1 Maintenance servicing with the power on Flameproof apparatus shall not be maintenance serviced with its power turned on However in cases where maintenance servicing is to be conducted with the power turned on with the equipment cover removed always use a gas detector to check that there is no explosive gas in that location If it cannot be checked whether an explosive gas is present or not maintenance servicing shall be limited to the following two items a Visual inspection Visually inspect the flameproof apparatus meta
48. of joint threads are determined by such factors as the enclosure s internal volume joint and mating surface construction and the explosion classification of the specified gases and vapours 4 Installation of Flameproof Apparatus 1 Installation Area Flameproof apparatus may be installed in accordance with applicable gases in a hazardous area in Zone 1 or 2 where the specified gases are present Those apparatus shall not be installed in a hazardous area in Zone 0 Note Hazardous areas are classified in zones based upon the frequency of the appearance and the duration of an explosive gas atmosphere as follows Zone 0 An area in which an explosive gas atmosphere is present continuously or is present for long periods Zone 1 An area in which an explosive gas atmosphere is likely to occur in normal operation Zone 2 An area in which an explosive gas atmosphere is not likely to occur in normal operation and if it does occur it will exist for a short period only 2 Environmental Conditions The standard environmental condition for the installation of flameproof apparatus is limited to an ambient temperature range from 20 C to 40 C for products certified under Technical Criteria However some field mounted instruments may be certified at an ambient temperature up to 60 C as indicated on the instrument nameplates If the flameproof apparatus are exposed to direct sunshine or radiant heat from plant facilities appropriate the
49. operating conditions e conform to conditions of installation such as wiring method earthling or the like if any and f protect the outer sheath of cables from damage with appropriate mea sures 4 Ex AO01E INSTALLATION AND OPERATING PRECAUTIONS FOR JIS INTRINSICALLY SAFE EQUIPMENT 7 Maintenance and Inspection of Intrinsically Safe Apparatus and Safety Barriers Ex A01E Maintenance and inspection of intrinsically safe apparatus and safety barriers shall be limited to within the instructions described in applicable instruction manuals If other than this is required contact the manufacturers For more information refer to the USER S GUIDELINES for Electrical Installations for Explosive Gas Atmospheres in General Industry issued in 1994 by the Japanese Ministry of Labour the Research Institute of Industrial Safety 1 Requirements for maintenance personnel Maintenance and inspection of intrinsically safe apparatus and safety barriers shall be conducted by maintenance personnel skilled in intrinsically safe construction and installation of electrical devices as well as capable of applying associated rules 2 Maintenance and Inspection a Visual inspection Visually inspect the external connections of intrinsically safe apparatus and safety barriers and cables for damage or corrosion as well as other mechanical and structural defects b Adjustments Zero span and sensitivity adjustments shall be made with applica
50. pper tubing with an outer diameter of 6 mm and inner diameter of 4 mm or outer diameter of 8 mm and inner diameter of 6 mm will be used for the piping and will be connected using a pneumatic tubing coupling After completing the piping check that there are no leaks 4 1 4 2 Intrinsically Safe Type Wiring N o9 Non hazardous o Hazardous area WARNING Do not combine this instrument with any equipment other than the intrinsically safe type equipment shown in the figure The wiring of the intrinsically safe circuit between the positioner and the safety barrier BARD 800 or BARD 400 must be kept routed with sufficient physical separation from other circuits so as not to be affected by electromagnetic induction etc and should be implemented using metallic conduit or shielded cable E Confirming the certification mark A certification mark with the certification number is applied on the instrument s body There is a fixed correspondence between certification number and the safety barrier to be used as shown below Please cross out the unnecessary certification mark depending on a barrier For connecting with BARD 800 safety barrier Certification No 56205 For connecting with BARD 400 safety barrier Certification No 46986 Please also cross out the unnecessary rating data on the data plate accord ingly If there is no label with the number corresponding to the barrier to be used you cannot use that barrier
51. reasing output pressure for increasing input Option in basic Suffix Codes Manual Operation Available using auto manual A M transfer switch Zero point Adjustment Range 15 to 85 of span Span Adjustment Range Within 300 of span Split Range Settable in the range from 50 to 100 of span Travel Range Stem stroke 10 to 100 mm Rotary input 3 6 to 30 Air consumption Max Air Delivery Diaphragm Single Double acting acting Cylinder Cylinder Supply air pressure 140 kPa 1 4 kgf cm 400 kPa 4 kgf cm Maximum air consumption 5 Nl min 12 5 Ni min Maximum air delivery 160 Nl min 330 Ni min T0202E EPS Ambient Temperature 10 to 80 C Operating Temperature Limits Code 1 30 to 40 C Operating Temperature Limits Code 2 Waterproof Construction Complies with JIS C0920 rainproof NEMA Type 3 IEC IP53 Explosion protected Construction JIS Flameproof Exds IIC T6X Ambient Temperature 20 to 60 C JIS Intrinsically safe i3aG5 Ambient Temperature 10 to 60 C Dustproof Construction IEC IP53 Connections Air connection Rc1 4 or 1 4NPT female Electrical connection G1 2 G3 4 female or 1 2NPT 3 ANPT female Mounting Actuator front surface or yoke mounting Weight 3 kg Accuracy Linearity 1 0 96 diaphragm single acting cylinder 1 5 96 double acting cylinder Hysteresis Less than 1 0 96 diaphragm single acting cylinder Less than 1 5 96 double actin
52. rmal protection measures shall be taken Ex BO2E INSTALLATION AND OPERATING PRECAUTIONS FOR JIS FLAMEPROOF EQUIPMENT 5 External Wiring for Flameproof Apparatus Flameproof apparatus require cable wiring or flameproof metal conduits for their electrical connections For cable wiring cable glands cable entry devices for flameproof type to wiring connections shall be attached For metal conduits attach sealing fittings as close to wiring connections as possible and completely seal the apparatus All non live metal parts such as the enclosure shall be securely grounded For details see the USER S GUIDELINES for Electrical Installations for Explosive Gas Atmospheres in General Industry published in 1994 1 Cable Wiring Ex BO2E For cable wiring cable glands cable entry devices for flameproof type specified or supplied with the apparatus shall be directly attached to the wiring connections to complete sealing of the apparatus Screws that connect cable glands to the apparatus are those for G type parallel pipe threads JIS B0202 with no sealing property To protect the apparatus from corrosive gases or moisture apply nonhardening sealant such as liquid gaskets to those threads for waterproofing Specific cables shall be used as recommended by the USER S GUIDE LINES for Electrical Installations for Explosive Gas Atmospheres in General Industry published in 1994 In necessary appropriate protective pipes conduit or
53. rrent is represented by a root mean square value JIS C6575 WARNING Do not touch the moving parts of the valve because they spring into action This instrument was thoroughly inspected before being shipped from the factory When the instrument is delivered perform an external visual check for damage This section describes cautions that should be observed when handling this instrument Please read it carefully For information on subjects not covered in this section refer to the relevant section If you have any problems or questions contact the YOKOGAWA representative from which the instrument was purchased or the nearest YOKOGAWA service station 1 1 1 1 Checking the Model and Suffix Code and Specifi cations The data plate on the top face of the instrument base shows the model suffix code and specifications With reference to the model suffix code and specifications in Section 2 3 and verify that the corresponding specifications conform to those of your order Include the Model Suffix code and serial number in all communications CUR TO PNEU VPRO POSITIONER DE YOKOGAWA Made in F0101E EPS Figure 1 1 Data Plate 1 2 Transportation Precautions To prevent damage when moving the instrument pack the instrument in the same way as when it was shipped 1 3 Storage Precautions 1 When storing this instrument select a location that meets the following conditions Not exposed to rain or water Mini
54. s and safety barriers needs to satisfy combination requirements If intrinsically safe apparatus specify safety barriers for combination safety barriers other than specified cannot be used see Note 1 for more details 2 Certified intrinsically safe systems specify specific safety barriers in combination with intrinsically safe apparatus So safety barriers other than specified cannot be used see Note 2 for more details 3 Other than limitations of combining intrinsically safe apparatus and safety barriers as given in 1 and 2 above two or more pieces of apparatus certified under different standards cannot be combined with each other see Note 3 for more details In addition bear in mind that classifications of explosion protection such as IIA IIB and IIC and category ia and ib limit a combination of intrinsically safe apparatus and safety barriers For more details see the Type Certificate Guide for Explosion Protected Constructionfor Electrical Machinery and Equipment issued by the Japanese Ministry of Labour the Research Institute of Industrial Safety Note 1 Testing Apparatus Intrinsically safe apparatus and safety barriers are assessed individually to ensure that their safety requirements are satisfied Tested and certified intrinsically safe apparatus and safety barriers incorporate individual certification numbers A combination of intrinsically safe apparatus and safety barriers involves the following
55. stalling coat accessory nipple with sealant screw it in 7 or 8 turns and tighten the lock nut to secure it b After wiring with insulated wiring use sealing dams of inorganic material to create a chamber filling with sealing compound see Figure 4 5 c Fill the inside of the fitting with sealing compound through the compound fill port Example of sealing compound Shimada Electric 1 kg can For G1 2 Approx 100 g P fill For G3 4 Approx 115 g P fill d After the compound has been harden enoughly screw the plug into the fill port e Use metal wiring conduit JIS C8305 or a flexible fitting with explosion protected authorization and connect to the sealing fitting engaging at least five full threads f For details concerning sealing see Subsection 3 3 2 3 Recommended practice for Explosion Protected Electrical Installations in General Indus tries 1985 published by Research Institute of Industrial Safety Japan IM 21B3C1 01E 4 WIRING AND PIPING Control valve Single loop controller Non hazardous Hazardous area area L Pressure regulator B x Coy CAI C Nc Bl Stop valve Supply air pressure Air filter F0402E EPS Figure 4 2 General use and Flameproof Type Wiring AN CAUTION Be sure to apply non hardening sealant to the threads for water proofing Insulated wires Heavy gauge steel conduit Flexible fitting Tee joint
56. supply systems to be separated for maintenance Generally both air supply systems are used in parallel for operation To supply clean and dry air to instruments considerations should be made such as provision of water drain filter and downward pitch 1 100 or more for piping IM 21B3C1 01E App A 1 App A 2 2 Example for Field Mounting Instruments Figure 2 shows an air supply system for service point with respect to field mounting instruments individually installed instruments Securely install a filter and reducing valve in air supply piping that is nearest to an instrument These devices are not required if the instrument has a filter and reducing valve Also it is recommended that a shut off valve be installed in the air supply pipe to allow removal of individual instruments without cutting off the entire air supply system Air supply pipe Unregulated air supply Air header pipe Samp Supply Regulator To instrument Air filter FOAO2E EPS Figure 2 Example of Air Supply System for Field Mounting Instru ments 3 Air supply System for Field Mounted Instruments e Supply Air Clean dry air is required An aftercooler filter air drier are used to eliminate water oil and other contaminants Air Supply Header Air Header The air header that supplies air to a series of instruments is installed with a minimum downward pitch of 10 mm m 1 100 so that moisture and oil entrapped in the
57. the VP200 on an actuator one in which the VP200 is mounted directly on the actuator yoke and one in which a mounting bracket is used to mount the VP200 to the actuator Select the appropriate mounting method according to the purpose for which the control valve is used and the mode of use of other accessories used with the control valve Generally the valve manufacturer who has done the assembly and adjustment of the valve positioner combination will have decided a standard mounting method so you should consult the manufacturer of the individual control valve for details 3 1 3 2 1 Mounting to Yoke This method mounts the VP200 directly on the actuator yoke In this case the VP200 is mounted with its front surface facing in the direction of process fluid flow If you wish to have the VP200 face to the side mount the VP200 with the actuator turned 90 The advantage to mounting the VP200 directly on the yoke is that no mounting bracket is required and that this configuration is more resistant to vibration Note that particularly in locations where the vibration level is high the yoke to which the positioner is to be mounted should be finished so that the surface is flat As shown in the line drawing in Figure 2 1 the VP200 is mounted using two M8 screws with a 38 mm spacing If there are no holes for mounting the positioner to the yoke drill two 8 5 mm dia holes at 38 mm spacing FO301E EPS Figure 3 1 Mounting VP200 D
58. there are cases where there is some difference between the actuating force when the input is 0 and that when the valve is tightly closed 3 3 5 Pressure Balance Adjustment IM 21B3C1 01E If the dead band is large when using a multi acting cylinder actuator the control relay output balance must be adjusted The optimal pressure balance point differs somewhat depending on the packing characteristics and load characteristic of the cylinder being used but generally this is adjusted to around 50 96 to 90 of the supply air pressure When the VP200 is shipped the output balance is adjusted to around 80 If there is inverse hysteresis this can be eliminated by shifting the balance point slightly If there is some margin in actuator output air consumption can be reduced by lowering the balance point However when there is some load on the actuator the pressure will be higher in the cylinder on one side and they will not balance at the same pressure To increase the balance pressure turn the pressure balance adjustment screw in Figure 3 24 counterclockwise To decrease turn this screw clockwise 3 19 Pressure balance adjustment screw F0324E EPS Figure 3 24 Pressure Balance Adjustment OUT2 OUT1 100 amp Pressure balance point Output air pressure 96 Input signal F0325E EPS Figure 3 25 Pressure Balance Adjustment 3 20 IM 21B3C1 01E 4 WIRING AND PIPING 4 WIRING AND PIPI
59. truction is of completely enclosed type and its enclosure shall endure explosive pressures in cases where explosive gases or vapours entering the enclosure cause explosion In addition the enclosure construction shall be such that flame caused by explosion does not ignite gases or vapours outside the enclosure In this manual the word flameproof is applied to the flameproof equipment combined with the types of protection e o i and d as well as flameproof equipment 3 Terminology 1 Enclosure An outer shell of an electrical apparatus which encloses live parts and thus is needed to configure explosion protected construction 2 Shroud A component part which is so designed that the fastening of joint surfaces cannot be loosened unless a special tool is used 3 Enclosure internal volume This is indicated by the total internal volume of the flameproof enclosure minus the volume of the internal components essential to equipment functions 4 Path length of joint surface On a joint surface the length of the shortest path through which flame flows from the inside to outside of the flameproof enclosure This definition cannot be applied to threaded joints 5 Gaps between joint surfaces The physical distance between two mating surfaces or differences in diameters if the mating surfaces are cylindrical Note The permissible sizes of gaps between joint surfaces the path length of a joint surface and the number
60. two limitations 1 A safety barrier which meets the combination requirements by referring to its safety rating and combination parameters shall be selected mainly for temperature detectors including thermocouples and resistance temperature detectors 2 For pressure transmitters pH transmitters temperature detectors and the like safety barriers that can be combined are already specified Other safety barriers cannot be used Note 2 Testing Intrinsically Safe System An assembly as a system in which intrinsically safe apparatus and safety barriers are combined is assessed to ensure that its safety requirements are satisfied A tested and certified system incorporates a certification number intrinsically safe apparatus and safety barriers have the same certification number Note 3 Impossible Combinations of Apparatus Certified Under Different Standards Intrinsically safe apparatus certified under technical criteria and safety barriers certified under the Recom mended Practice for Explosion Protected Electrical Installations in General Industries 1979 and vice versa cannot be combined even if their combination requirements are satisfied 5 Installation of Intrinsically Safe Apparatus and Safety Barriers 1 Classification of installation location Intrinsically safe apparatus may be installed depending upon applicable gases in a hazardous area in Zone 0 1 or 2 Note 4 below where the specified gases are present Howev
61. uestion after delivery Reason of force majeure such as fires earthquakes storms floods thunder lightening or other natural disasters or disturbances riots warfare or radioactive contamination IM 21B3C1 01E Contents Contents INTRODUCTION rem i 1 HANDLING PRECAUTIONS 6a csccssastcnsassitnnttnnenvsindnisexttnninncistdnatiansnaneienreevnegenes 1 1 1 1 Checking the Model and Suffix Code and Specifications 1 2 1 2 Transportation Precautions sssseeee 1 2 1 8 Storage Precautions essssssssssessseeenene ennt 1 2 1 4 Precautions for Installation Area seeeee 1 3 PEe2 j ny 2 1 234 Functional Description eere nente 2 1 2 2 Standard Specifications ssssssssssseeeee 2 1 2 3 Model and Suffix Codes sssssssssssssseeeeeeeennene 2 3 274 vODIODIS eret ibt rere pc on teat tulit tested ict creer reece 2 4 2 5 External Dimensions eto tee beet e et 2 5 2 0 Part Names con eed an A DE 2 7 3 MOUNTING AND ADJUSTMENT eeeeeeneeeeeeennn nennen nennen nnns 3 1 Bolt GOVOLVIOW cA toe tac Ate etu bu eto tiat etie EA deo Ede e 3 1 3 2 Mounting on Single Acting Type Actuator ssssssssss 3 1 3 2 1 Mounting on Actuator sssssseeeee ee 3 1 3 2 2 Position Adjustment sssseeeeeeene 3 4 3 2 3 Stroke Adjusting
62. ver bear in mind that the apparatus must always be restored to its original condition If you attempt to repair the flameproof apparatus company specified components shall be used d Before starting to service the apparatus be sure to check all parts neces sary for retaining the requirements for flameproof apparatus For this check that all screws bolts nuts and threaded connections have properly been tightened 3 Prohibition of specification changes and modifications Do not attempt to change specifications or make modifications involving addition of or changes in external wiring connections Ex BO2E INSTALLATION AND OPERATING PRECAUTIONS FOR JIS FLAMEPROOF EQUIPMENT 7 Selection of Cable Entry Devices for Flameproof Type Ex BO2E A IMPORTANT The cable glands cable entry devices for flameproof type conforming to IEC Standards are certified in combination with the flameproof apparatus So Yokogawa specified cable entry devices for flameproof type shall be used to meet this demand References 1 Type Certificate Guide for Explosion Protected Construction Electrical Machinery and Equipment relating to Technical Standards Conforming to International Standards issued by the Technical Institution of Industrial Safety Japan 2 USER S GUIDELINES for Electrical Installations for Explosive Gas Atmo spheres in General Industry 1994 issued by the Japanese Ministry of Labour the Research Institute of Industri
63. ver for medium capacity actuators Part No F9173CA Therefore when using the lever for large capacity actuators used for diaphragm actuators with diaphragm diameters of 6400 and up Part No F9173CJ you should remove this hardware from the medium capacity actuator lever for use with the large capacity lever see Figure 3 4 First remove the spring lt 4 gt from the lever Next remove component lt 1 gt and then remove components lt 2 gt and lt 3 gt from the lever Then mount these accessories on the large capacity actuator lever F9173CJ 3 1 2 Lever FO304E EPS Figure 3 4 Lever Assembly Components IM 21B3C1 01E IM 21B3C1 01E 3 MOUNTING AND ADJUSTMENT After determining which lever to use follow the procedure below and use the clamp and lever to connect the control valve stem and positioner These adjustments are important and will greatly affect the combined performance of the positioner and control valve 1 Insert the lever in the positioner shaft Do not tighten the locking screw yet in Feedback lever F0305E EPS Figure 3 5 Lever Mounting 2 Attach the clamp to the control valve stem 3 Next manually adjust the air pressure to the actuator so as to bring the stem stroke to the 50 96 position 4 Insert the clamp pin into the slot on the lever Feedback lever Clamp pin F0306E EPS Figure 3 6 Mounting Clamp and Lever 3 5 3 6 5 Fasten the clamp to
64. ween direct and reverse is done using the span adjustment mechanism To switch from direct to reverse turn the span adjustment screw counterclockwise and adjust so that the contact pin is behind the feedback shaft To switch from reverse to direct adjust in the opposite direction Span adjustment Reverse Sy Low EL Contact pin in front Contact pin behind of feedback shaft feedback shaft Direct Contact pin PEERS I pg en e E Feedback shaft Horizontal lever a I Ui Si Low output Zero adjustment Zero adjustment High output F0315E EPS Figure 3 15 Direct Reverse Action Selection IM 21B3C1 01E 3 MOUNTING AND ADJUSTMENT 3 2 9 A M Transfer Mechanism The switch shown in Figure 3 16 can be used to transfer between AUTO OUT1 manual and OUT2 manual modes A M switch Ni em Cus c ST Q OUT1 manual ORNS i eT OUT2 manual DJ i cC po Nu w A Kl d AUTO F0316E EPS Figure 3 16 AM Transfer IM 21B3C1 01E 3 13 3 3 Mounting on a Double Acting Actuator This section is concerned with Current to pneumatic positioners intended for use in combination with linear control valves such as global valves using a Double acting cylinder actuator as the drive unit This section applies only to those types of VP200 positioners having an N suffix code for compatible actuator type 3 3 4 Mounting on Actuator Ther

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