PMV D20 Digital Positioner Operation Maintenance D20 EN.pdf · For D20 installed in hazardous...

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Installation Operation Maintenance PMV D20 Digital Positioner

Transcript of PMV D20 Digital Positioner Operation Maintenance D20 EN.pdf · For D20 installed in hazardous...

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InstallationOperation

Maintenance

PMV D20Digital Positioner

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Contents

1. General information ....................................................................... 3 1.1 Using ............................................................................................ 3 1.2 Terms concerning safety .............................................................. 3 1.3 Protective clothing ........................................................................ 4 1.4 Qualified personnel ...................................................................... 4 1.5 Installation .................................................................................... 4 1.6 Spare parts ................................................................................... 4 1.7 Service/repair ............................................................................... 4 1.8 Storage......................................................................................... 5 1.9 Valve and actuator variations ....................................................... 52. Unpacking ....................................................................................... 53. PMV D20 Overview ......................................................................... 64. Specifications ................................................................................. 7 4.1 Technical data .............................................................................. 7 4.2 Mechanical switches .................................................................... 8 4.3 Type sign ...................................................................................... 9 4.4 D20 Model Code ........................................................................ 10 4.5 Control Drawing .......................................................................... 11 4.6 Certificates ................................................................................. 125. Principle of operation .................................................................. 166. Mounting and installation............................................................ 17 6.1 General ...................................................................................... 17 6.2 Mounting on a linear pneumatic actuator ................................... 17 6.3 Rotary actuators ......................................................................... 197. Tubing positioner to actuator ..................................................... 228. Wiring and grounding guidelines ............................................... 23 8.1 Grounding screw ........................................................................ 23 8.2 Electromagnetic compability ...................................................... 24 8.3 Compliance voltage.................................................................... 249. Operation ...................................................................................... 25 9.1 Operation ................................................................................... 25 9.2 Start up....................................................................................... 25 9.3 Calibration .................................................................................. 25 9.4 Set of Direct or Reverse action .................................................. 26 9.5 Show gain setting ....................................................................... 26 9.6 Change gain setting ................................................................... 2710. Limit switches & 4 - 20 mA transmitter (Optional) .................. 28 10.1 General .................................................................................... 28 10.2 Model selection ........................................................................ 28 10.3 Principle of operation ............................................................... 28 10.4 Installation ................................................................................ 28 10.5 Calibration of 4 - 20 mA input signal and/or 4 - 20 mA feedback transmitter ................................................................. 2911. Trouble shooting ........................................................................ 30 11.1 PMV D20 Error codes .............................................................. 30 11.2 PMV D20 symptoms and solutions .......................................... 3112. Spare parts ................................................................................. 32

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1.1 UsingThe following instructions are designedto assist in unpacking, installing andperforming maintenance as required onFLOWSERVE products. Product usersand maintenance personnel shouldthoroughly review this bulletin prior toinstalling, operating or performing anymaintenance.

1. General information

1.2 Terms concerning safetyThe safety terms DANGER,WARNING, CAUTION and NOTEare used in these instructions tohighlight particular dangers and/or to provide additional informa-tion on aspects that may not bereadily apparent.

DANGER: indicates that death,severe personal injury and/orsubstantial property damage willoccur if proper precautions are nottaken.

WARNING: indicates that death,severe personal injury and/orsubstantial property damage canoccur if proper precautions are nottaken.

CAUTION: indicates that minorpersonal injury and/or propertydamage can occur if properprecautions are not taken.

In most cases FLOWSERVE valves,actuators and accessories are designedfor specific applications (e.g. with regardto medium, pressure, temperature). Forthis reason they should not be used inother applications without first contactingthe manufacturer.

NOTE: indicates and providesadditional technical information,which may not be very obviouseven to qualified personnel.

Compliance with other, not particularlyemphasised notes, with regard to trans-port, assembly, operationandmaintenance and with regard to technicaldocumentation (e.g. in the operatinginstruction, product documentation or onthe product itself) is essential, in orderto avoid faults, which in themselves mightdirectly or indirectly cause severe per-sonal injury or property damage.

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1.3 Protective clothingFLOWSERVE products are often usedin problematic applications (e.g.extremely high pressures, dangerous,toxic or corrosive mediums). In particularvalves with bellows seals point to suchapplications. When performing service,inspection or repair operations alwaysensure, that the valve and actuator aredepressurised and that the valve hasbeen cleaned and is free from harmfulsubstances. In such cases pay particularattention to personal protection(protective clothing, gloves, glasses etc.).

1.4 Qualified personnelQualified personnel are people who, onaccount of their training, experience andinstruction and their knowledge of rele-vant standards, specifications, accidentprevention regulations and operatingconditions, have been authorised bythose responsible for the safety of theplant to perform the necessary work andwho can recognise and avoid possibledangers.

1.5 InstallationDANGER: Before installationcheck the order-no, serial-no. and/or the tag-no. to ensure that thevalve/actuator is correct for theintended application.Do not insulate extensions that areprovided for hot or cold services.

Pipelines must be correctlyaligned to ensure that the valve isnot fitted under tension.

Fire protection must be providedby the user.

1.6 Spare partsUse only FLOWSERVE original spareparts. FLOWSERVE cannot acceptresponsibility for any damages that occurfrom using spare parts or fasteningmaterials from other manufactures. IfFLOWSERVE products (especiallysealing materials) have been on store forlonger periods check these for corrosionor deterioration before using theseproducts. Fire protection forFLOWSERVE products must beprovided by the end user.

1.7 Service / repairTo avoid possible injury to personnel ordamage to products, safety terms mustbe strictly adhered to. Modifying thisproduct, substituting nonfactory parts, orusing maintenance procedures otherthan outlined in this instruction coulddrastically affect performance and behazardous to personnel and equipment,and may void existing warranties.Between actuator and valve there aremoving parts. To avoid injuryFLOWSERVE provides pinch-point-protection in the form of cover plates,especially where side-mounted position-ers are fitted. If these plates are remo-ved for inspection, service or repair spe-cial attention is required. After completingwork the cover plates must be refitted.

Apart from the operating instructions andthe obligatory accident preventiondirectives valid in the country of use, allrecognised regulations for safety andgood engineering practices must befollowed.

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WARNING:Before products are returned toFLOWSERVE for repair or serviceFLOWSERVE must be providedwith a certificate which confirmsthat the product has beendecontaminated and is clean.FLOWSERVE will not acceptdeliveries if a certificate has notbeen provided (a form can beobtained from FLOWSERVE).

1.8 StorageIn most cases FLOWSERVE productsare manufactured from stainless steel.Products not manufactured fromstainless steel are provided with anepoxy resin coating. This means thatFLOWSERVE products are wellprotected from corrosion. NeverthelessFLOWSERVE products must be storedadequately in a clean, dry environment.Plastic caps are fitted to protect the

Disposal of product when taken out of service.According to EU legislation, this product must be recovered for separa-tion of materials and may not be disposed of as unsorted municipalwaste.If you wish you can return this Sensistor product to the manufacturer forrecovery.The manufacturer has the right to refuse taking back products that areinadequately packaged and thereby presents safety and/or health risksto the staff.The manufacturer will not reimburse you for the shipping cost.

flange faces to prevent the ingress of fo-reign materials. These caps should notbe removed until the valve is actuallymounted into the system.

1.9 Valve and actuatorvariationsThese instructions cannot claim to coverall details of all possible productvariations, nor in particular can they prov-ide information for every possibleexample of installation, operation ormaintenance. This means that theinstructions normally include only thedirections to be followed by qualified per-sonal where the product is being usedfor is defined purpose. If there are anyuncertainties in this respect particularlyin the event of missing product-relatedinformation, clarification must be obtainedvia the appropriate FLOWSERVE salesoffice.

2. Unpacking

Each delivery includes a packing slip.When unpacking, check all deliveredvalves and accessories using thispacking slip.

Report transport damage to the carrierimmediately.

In case of discrepancies, contact yournearest FLOWSERVE location.

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pressure rating a supply regulator isrequired to lower the pressure to theactuator’s maximum rating (not to beconfused with operating range). Acoalescing air filter is recommended forall applications due to the closetolerances in the positioner.

PMV D20 positioner accessories:Optional analog feedback system as wellas limit switch unit and a directlyattachable double acting module.

NOTE: The air supply must conform toISA 7.0.01 orIEC 770 (a dew point atleast 10°C/18°F below ambient tempera-ture, particle size below five microns –one micron recommended – and oil con-tent not to exceed one part per million).

3.

The PMV D20 is a two-wire looppowered, 4-20 mA input digital valvepositioner.

The PMV D20 positioner controlsactuators with linear and rotarymountings.

The PMV D20 is completely powered bythe 4-20 mA input signal. The minimuminput signal required to function is 3,6mA.

Since the positioner is insensitive tosupply pressure changes and canhandle supply pressures from 1,5 to 6barg (22 to 105 psig), a supply regulatoris usually not required; however, inapplications where the supply pressureis higher than the maximum actuator

PMV D20 overview

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4. Specifications

Input signal 4-20 mACurrent supply min. 3,6 mACurrent supply Max. 150 mALoad Standard 400 ohm at 20mALoad HART 470 ohm at 20mAVoltage dropStandard 8 VDC at 20mAVoltage dropHART 9.4 VDC at 20mAAngle of rotation min 0-40°Angle of rotation Max 0-90°Air supply range 1.5 – 6 barOut put 0-100% of air supply pressureAir supply quality Free from oil, dust and moisture IEC 770,

ISA 7.0.01Air supply effect <0.1%FS for10% pressure change at 6 BarIngress protection IP66 / Nema 4XOperating humidity 0-100% rh non-condensingAir connections 1/4” NPTCable entry 2 x 1/2” or 2 x M20x 1,5Terminals Screw terminals 2,5 mm2 (AWG 14)Operating Temperature -20 to +85°C-40 to +85°C (optional)Storage temperature -40 to +85°CAir delivery capacity 7 Nm3/h @ 6 bar (3 bar diff pressure)Air delivery capacity Double acting 7 Nm3/h @ 6 bar (3 bar diff pressure)Air consumption Single acting 0,120 Nm3/h @ 6 barAir consumption Double acting 0,120 Nm3/h @ 6 barCv air delivery Single acting 0,12Cv air delivery Double acting 0,12Cut off function Close 0.5% Open 99.5%Linearity <1%Sensitivity <0.05%Resolution <0,1%Repeatability <0.2%Hysteresis + dead band <0.5%Temp effect <0.1%/10KMounting position effect <0,2%CE 93/68/EEC, 2004/108/EEC, 2006/95/EECApprovals II 1G Ex ia IIC T4 Ta:85°CCertificate nr Nemko 08ATEX1362XHousing material Die cast AluminiumSurface treatment Powder coatingSoft goods NitrileWeight 1,5 kg

4.1 Technical data

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4.2 Mechanical switches

Type SPDTSize Sub Sub miniatureRating 3A, 125 VAC / 2A, 30VDCMechanical life >1 x 106 operations

Namur sensorsType P+F NJ2 V3 N Inductive DIN 19234Load current <1mA>3mAVoltage range 5-25 VDCHysteresis 3-15% (5% typical)Temp range -25° to +100° C (-248° to 373° F)

Namur sensorsType P+F SJ2-NNormal Voltage 8 VDCLoad current 1mA<I<3mAVoltage range (5-25 VDC)Hysteresis (max) 0.2%Temp range -25° to +100° C (-248° to 373° F)

Namur sensorsType P+F SJ2-SNNormal Voltage 8 VDCLoad current 1mA<I<3mAVoltage range 5-25 VDCHysteresis (max) (0.2%)Temp range -40° to +100° C (-233° to 373° F)

Namur sensorsType P+F SJ2-S1NNormal Voltage 8 VDCLoad current 1mA<I<3mAVoltage range 5-25 VDCHysteresis (max) 0.2%Temp range -25° to +100° C (-248° to 373° F)

Proximity switchesType SPDTRating 10WVoltage max 200VDCCurrent max 500mAContact resistance max 0.2 ohm

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Operating time 1.0 ms

TransmitterPower supply 12-28 VDCOutput 1-22 mAResolution 0.1%Linearity ±0.5%Load impedance 600 ohm at (12 VDC and 20mA)

Alarm OutputSupply 3-28 VDCOutput 20mA @ 24 VDC

4.3 Type sign

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A = Model noD20 Digital compact positioner, General purpose, LED status

B = Approval, CertificateD General purpose versionI Intrinsically safe version ATEX

C = Connections Air, ElectricalG 1/4" NPT air, M20 x 1,5 electrical x 2N 1/4" NPT air, 1/2" NPT electrical x 2

D = Housing/Surface treatmentU Aluminium/Powder epoxy, black

E = FunctionS Single actingD Double acting, incl gauges (2) Stainless/Brass

F = Mounting options / Spindle09 Double D type, adaptor spindle12 Flowtop, D-style+ nut, direct mounting, Kit 30144 include23 VDI/VDE 3845 rotary, Mounting kit not included39 VDI/VDE 3847 Linear, Flat D, Mounting kit 30145 included40 IEC 534-6, Flat D type, nut incl. Mounting kit not included

G = Cover and IndicatorPVA PMV,Black cover, Arrow indicatorPVB PMV, Black cover, No indicatorPVD PMV, Black cover, Dome indicator

H = Temperature/sealsZ Standard -20°C to 85°C (-4°F to 185°F)Q Low temp -40°C to 85°C (-38°F to 185°F)

I = Input signal/Protocol4 4-20 mA / none5 4-20 mA, / HART

J = Feedback option, 4-20 mA transmitter, switchesX No feedback optionT 4-20 mA transmitter onlyS Limit switches Mechanical SPDT + 4-20mAN Namur V3 type sensor, P+F NJ2-V3-N + 4-20mAP Limit switches Proximity SPDT + 4-20mA4 Slot type Namur sensor, P+F SJ2-S1N + 4-20mA5 Slot type Namur sensor, P+F SJ2-SN + 4-20mA6 Slot type Namur sensor, P+F SJ2-N + 4-20mA

K = Options, Add in electronics0 Standard diagnostics

L = AccessoriesX No accessoriesM Gauge block 1/8" G (2 x gauges included)N Gauge block 1/8" NPT (2 x gauges included)

Example: A A A B C D - E F F G G G - H I J K L

4.4 D20 Model Code

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4.5 Control Drawing

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4.6 Certificates

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The PMV D20 positioner is a digital posi-tioner with various options. The positio-ner consists of three main modules:

1. The microprocessor-based electroniccontrol module includes direct local userinterface switches

2. The piezo valve-based electro-pneumatic converter module

3. The infinite resolution valve positionsensor.

The basic positioner operation is bestunderstood by referring to figure 1. Thecomplete control circuit is powered by thetwo-wire, 4-20 mA command signal. Theanalog 4-20 mA command is passed tothe microprocessor, where it is comparedto the measured valve stem position. Thecontrol algorithm in the processorperforms control calculations andproduces an output command to thepiezo valve, which drives the pneumatic

amplifier. The position of the pilot valvein the pneumatic amplifier is measuredand relayed to the inner loop controlcircuit. This two-stage control providesfor more responsive and tighter controlthan is possible with a single stagecontrol algorithm. The pneumaticamplifier controls the airflow to theactuator. The change of pressure andvolume of the air in the actuator causesthe valve to stroke. As the valveapproaches the desired position, thedifference between the commanded po-sition and the measured positionbecomes smaller and the output to thepiezo is decreased. This, in turn, causesthe pilot valve to close and the resultingflow to decrease, which slows theactuator movement as it approaches, thenew commanded position. When thevalve actuator is at the desired position.the pneumatic amplifier output is held atzero, which holds the valve in a cons-tant position.

Piezo Valve

Inner Loop

Position feed-

Pneumatic

Stroke

Control Valve

LocalUser

Inner LoopPiezo Control

Micro-Processor

3 Valve

1 Digital Control

Gain

5. Principle of operation

Figure 1.

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6.1 GeneralBefore starting installation, inspect the di-gital positioner for any transit damages.The PMV D20 positioner is installed with amounting kit (according to NAMURspecification) to the left-hand actuator sup-port rod.

Generally, the unit can be installed in anymounting position. The stroke feed-backis realized by a follower arm and stemclamps.

The mounting of rod actuators (accordingto NAMUR) is described in Figure 3.

For the two mounting possibilities of castyoke actuators (according to NAMUR, lEC534 part 6) refer to Figure 5.

After installation, ensure all screwconnections are tightened correctly andall moving parts are free from excessivefriction.

6. Mounting and installation

6.2 Mounting of the PMV D20positioner on a linearpneumatic actuator(NAMUR / IEC 534 part 6)(See Figure 3)

The mounting of a rod actuator kit(according to IEC 534 part 6) is describedin an example by using the followingequipment:

Valve: Standard globe valve orequivalent

Actuator: Single-acting pneumaticactuatorPositioner: PMV D20 with NAMURmounting kit

Pre-assembly: Valve with actuator (valvestroke is matched with the actuatorstroke).

Figure 2. Dimensional drawing

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For mounting, proceed as follows:

Mounting the Follower Arm (Figures 3and 6)1. Unscrew the lock nut for the followerarm attachment.2. Place the follower arm on the shaft atthe back of the positioner and fasten it withthe lock nut. The follower pin should pointback from the positioner.

CAUTION: Maximum torque0,25 Nm (0,18 ft-lbs).

Mounting the stem clamp bracket andtake-off arm (Figure 3)1. Attach the stem clamp bracket to thestem clamp and fasten it with two hexa-gon socket screws and lock washers.

2. Attach the take off arm to the stem clampbracket and fasten it with a hexagonsocket capscrew and a washer. Ensurethe take-off arm slot is centered.

Mounting the positioner (Figure 3)1. Adjust the actuator to mid-stroke.

2. Pre-assemble the mounting bracket onthe left actuatorleg hand-tight with two U-bolts, nuts andlockwashers.

3. Attach the positioner to the pre-assembled mounting bracket and fastenit with two hexagon head screws and twolock washers. Check that the follower pinis inserted in the slot of the take-off armand the follower arm is positioned at a rightangle to the outer edge of the positioner.

4. Tighten all screws and nuts.

NOTE: A slight unsymmetricalmounting increases the linearitydeviation but does not affect theperformance of the device.Depending on the actuator sizeand stroke it may be necessary toflip the take-off arm (Figure 3) by180° and attach it to the oppositeside of the stem clamp bracket.

Follower pin adjustment (Figure 4)The positioner follower pin must beadjusted to match the valve stroke in thefollowing manner:

1. Adjust the follower pin (STROKE + 10mm) as indicated on the follower arm’sembossed scale (Figure 6).

2. Exhaust the actuator.

3. Loosen the follower pin and shift it alongthe follower arm until the control markingon the feedback gear (Figure 4) is hori-zontal (points to the center of the feed-back potentiometer). Fasten the followerpin in this position.

4. Adjust the actuator to full stroke andcheck the follower pin adjustment thesame way as described in step 3. As theactuator strokes, the rotation of the feed-back gear should be between the innercontrol markings. If the length of rotationis outside the control markings, adjust the

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follower pin farther out on the feedbacklever to reduce the angle of rotation.

NOTE: Stroke the actuator carefully andensure the follower arm does notinterfere with valve parts, actuator orpositioner. Do not adjust the follower pintoo near to the slot end of the take-offarm.

The minimum lateral distance should beapproximately 5 mm (0,2 inches) to pre-

vent bending of the feed-backmechanisim.

6.3 Rotary actuatorsMounting the PMV D20 positioner ona quarter-turn actuator (closed oropen by spring)The mounting of a pneumatic double-pis-ton part-turn valve actuator (inaccordance with VDI/VDE 3845) isdescribed as an example by using thefollowing equipment:

Quarter-turn valve actuator: Rack &pinion or scotch yoke, closed or open byspring.

Figure 3. Mounting on a Rod Actuator (IEC 534 part 6)

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20Rotary actutaors VDI/VDE 3485(Namur)

Mount bracket 1 to positioner. Securewith 4 x M6 screws 2.

Fit positioner on actuator and securewith 4 x screws 3.

Install tubing 4 between actuator and po-sitioner.See section 7.

Linear actuator “Flow act” (Directmounting, integrated tubing.

Check O-rings, Install bracket 1 to posi-tioner and secure with screws.

Fit pin on valve stem.

Fit lever arm to positioner shaft.

Fit and check O-rings and positioner toactuator and secure with 2 x screws 2.

No tubing needed, it’s integrated withactuator, fit plug in positioner out port.

Linear actuator VDI/VDE 3847(Direct mounting, integrated tubing.

Check O-rings, Install bracket1 to positioner and secure with 2 xscrews 2.

Fit pin on valve stem.

Fit lever arm to positioner shaft.

Fit and check O-rings and positioner toactuator and secure with 2 x screws 3.

No tubing needed, it’s integrated withactuator.

12

3

4

1

2

1

2

3

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Figure 4. Basic Adjustment for a Linear Pneumatic Actuator

Mounting A Mounting B

Figure 5. Yoke Actuator Mounting(according to IEC 534 part 6)

Figure 6. Follower Arm (standard)

Hexagon head screw

Lockwasher

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Figure 7. Mounting a Part-turnValve Actuator in acc. with VDI/VDE3845

1

2 3

After mounting has been completed,tube the positioner to the actuator usingthe appropriate compression fittingconnectors:

Air connections: 1/4” NPT (standard airconnection).

Auxiliary power: Pressurized air orpermissible gases, free of moisture anddust in according with IEC 770 or ISA7.0.01.

Pressure range: 1,5 – 6 bar (30 – 90 psi).

For connecting the air piping, thefollowing notes should be observed:

1. The positioner passageways areequipped with filters, which remove me-dium and coarse size dirt from thepressurized air. If necessary, they areeasily accessible for cleaning.

Mounting the positioner (Figure 7)Place the positioner (1) onto themounting block (2) of the actuator usingfour screws (3) Ensure the coupler fits

on to the shaft of the quarter-turnconnection on the part-turn valveactuator.

2. Supply air should meet IEC 770 or ISA7.0.01 requirements. A coalescing filtershould be installed in front of the supplyair connection (Figure 8). Now connectthe air supply to the filter, which isconnected to the PMV D20 positioner.

3. With a maximum supply pressure of 6bar (102 psi) a regulator is not required.

4. With an operating pressure of morethan 6 bar (90 psi), a reducing regulatoris required.

The flow capacity of the regulator mustbe larger than the air consumption of thepositioner (7 Nm3 /h @ 6 bar / 4,12 scfm@ 90 psi).

5. Connect the outlet connector (Figure8) of the positioner with tubing, indepen-dent of the action (direct or reverse).

7. Tubing positioner to actuator

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8.1 Grounding screwThe grounding screw, located inside thepositioner cover, should be used to prov-ide the unit with an adequate and reliableearth ground reference. This groundshould be tied to the same ground as theelectrical conduit. Additionally, theelectrical conduit should be earthgrounded at both ends of its run. Thegrounded scrrew must not be used totermingate signal shield wires.

Figure 8. Connections

Electrical connections: signal cablewith cable passage (1/2” NPT, or M20 x1,5) to terminals 2 x 2,5 mm.

Input signal: 4 – 20 mA

NOTE: Observe the minimumrequirements of voltage and equivalentelectrical load:

8 VDC at 20 mA

The performance is ensured only for aminimum input current of 3,6 mA.

For wiring, the following notes should beobserved:

NOTE: The input loop current signal tothe PMV D20 should be in shielded cable.Shields must be tied to a ground at onlyone end of the cable to provide a placefor environmental electrical noise to beremoved from the cable. In general,shield wire should be connected at thesource. (Figure 8).

Connect the 4-20 mA current source toterminals +1 and -2, see connection ta-ble.

8. Wiring and grounding guidelines

Connection Description+1 Input +4-20 mA–2 Input –4-20 mA

Pneumatic outputsignal (outlet)

Air supply

+ –

4 - 20 mA

IN

1 2

ISO 8573 2.2.2ISA 7.0.01.-1996 Class 2

2 - 6 bar30 - 90 Psi5 µ

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The PMV D20 digital positioner has beendesigned to operate correctly inelectromagnetic (EM) fields found intypical industrial environments. Careshould be taken to prevent the positio-ner from being used in environments withexcessively high EM field strengths(greater than 10 V/m). Portable EMdevices such as hand-held two-way ra-dios should not be used within 30 cm ofthe device.

Ensure proper wiring and shielding

techniques of the control lines, and routecontrol lines away from electro-magneticsources that may cause unwanted noise.

An electromagnetic line filter can be usedto further eliminate noise.

In the event of a severe electrostatic dis-charge near the positioner, the deviceshould be inspected to ensure correctoperability. It may be necessary torecalibrate the PMV D20 positioner torestore operation.

8.2 Electromagnetic compatibility

8.3 Compliance voltageOutput compliance voltage refers to thevoltage limit the current source can prov-ide. A current loop system consists of thecurrent source, wiring resistance, barrierresistance (if present), and the PMV D20impedance.

The PMV D20 requires that the currentloop system allow for a 6,0 VDC dropacross the positioner at maximum loopcurrent.

CAUTION: Never connect avoltage source directly across thepositioner terminals. This couldcause permanent circuit boarddamage.

Figure 9. Compliance voltage

CurrentSource

PMV D20

ComplianceVoltage

If Present

R R

Barrier Wire

Current

In order to determine if the loop will sup-port the PMV D20, perform the followingcalculation:

Voltage = Compliance Voltage(@CurrentMAX

)

– CurrentMAX

(Rbarrier

+ Rwire

)

To support the PMV D20 the calculatedvoltage must be greater than 8 VDC.

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Example: DCS Compliance Voltage = 19 VR

barrier = 300Ω

Rwire = 25Ω

CURRENTMAX

= 20 mA

Voltage = 19 V – 0,020 A(300Ω + 25Ω) = 12,5 V

This system will support the PMV D20, asthe voltage 12,5 V is greater than the required8 V.

9. Operation

Calibrationbutton

ALARMOPEN/CLOSEDCONTROLLING

9.1 GeneralThe D20 is operated by the yellow button.Depending on desired action, press thebutton:- during a number of seconds (Ex: )or- a number of times. (Ex: )

All operation steps are indicated by lit orflashing LED(s).

9.2 StartupConnect Air supply and a mA-simulatorto the positioner.

Warning: During calibration, theactuator may stroke unexpectedly.

9.3 CalibrationRun 4 mA current as input signal.

Press the button for 5 sec. (Re-lease the button when the threeLED:s start to flash alternately).The calibration starts, theactuator goes go to max. andmin. position and calculates thecontrol parameters.

The Calibration procedure will takebetween 30 seconds and some minutesdepending on actuator size.

The three LED:s will flash alternatelyduring calibration.

After calibration all the three LED:s arelit for a moment.

A successfull calibration is indicated byyellow or green LED:

Green LED flashes = In service

Yellow LED flashes = In service.The unit vents in max or min posi-tion.

An unsuccessfull calibration is indicatedby flashing red LED:

D20 does not reach the setpoint.

For other indications, see Error codes,page 30.

5 sec.

G

Y

R

5 sec.

x3

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26

x3

9.4 Set of Direct or Reverse actionNote! For safety reason, this opera-tion has to be done max 5 minutesafter calibration. If time has run out,or if power is disconnected during thefive minutes, perform a new cali-bration, before changing thedirection.

Run 4 mA. If valve is in right position,then check the position over the wholerange (8, 12, 16 and 20 mA).

If the direction need to bechanged: press the button 3times and the direction willchange.

Check operation at 4 – 8 – 12 – 16 and20 mA

9.5 Show gain settingIf the actuator position is unstable orselfoscillating after calibration, the gaincan be adjusted.

Gain can be set from A (lowest) to G(highest). Default is D.

To show the current gainsetting, press the buttonfour times.

To indicate the current setting, the LEDsflashes according to the following:

LEDs show: G (Highest)

LEDs show: F

LEDs show: E

LEDs show: D Default

LEDs show: C

LEDs show: B

LEDs show: A (Lowest)

The gain code sequence is repeatedduring 15 seconds.

x4

Y R R

Y R Y

Y R G

Y G

Y G G

Y G Y

Y G R

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27

Button functions:

Press 5 sec = Calibration

Press x3 = Direct/reverse action

Press x4 = Show gain setting

Press x5 - x11 = Change gain setting

To indicate that a command isaccepted, the three LED:slight up.

9.6 Change of gain settingTo lower the gain, press the button: 7, 6or 5 times (5= lowest).

To increase the gain (if to actuator ismoving to slow).

Press the button: 9, 10 or 11 times (11=highest) to increase the gain.

The LED:s flashes alternately when thebutton is pressed. After gain change theLED:s show the gain code (see 9.3) fivetimes.

The default value after first calibration isD .

After this, the Start-up is finished.

x11 G (Highest)

x10 F

x9 E

x8 D Default

x7 C

x6 B

x5 A (Lowest)

Low

er

Hig

her

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10. Limit switches & 4 - 20 mA transmitter (Optional)

Caution!The installation of electricalequipment in hazardous areas mustcomply with the procedures containedin the certificates of conformity. Coun-try specific regulations may apply.

Electrical safety is determined only bythe power supply device.

10.1 GeneralD20 can be equipped with optional plugin modules for limit switches and/or 4-20mA feedback transmitter

10.2 Model selectionSee D20 model code

10.3 Priciple of operationThe stroke of the actuator/valve is pickedup by the potentiometer inside the D20.Movement is transferred from actuatorvia lever or shaft coupling. Cams/vanesmounted on the positioner shaft actuatelimit switches 1 and 2. The switching pointcan be adjusted on each cam/vane.

The position transmitter converts actualposition into a 4-20mA output signal. Thisloop requires an external 24VDC powersupply.

10.4 InstallationCaution! Turn off power and airsupply before starting the installa-tion.

Important!For D20 installed in hazardous areas,maintenance and repair must only to bemade by authorized and trained staff.

-Remove cover, indicator if present andinner plastic cover.

-Check that spacers are installed on theprinted circuit board.

-Carefully install feedback board into itsposition on the pins.

-Secure it with two (2) screws.

-Install cam assembly on the shaft, iffeedback card has mechanical microswitches, be careful to not damageswitch arms.

-Install plastic inner cover.

-Adjust cams/vanes to ensure properswitching.

-Secure cam/van position by lockingthem with two (2) screws.

-Calibrate 4-20 mA transmitter, (see nextpage).

-Install cover.

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29

• Press and hold button while switchingon power to the D20, keep the buttonpressed for 6 sec. The eeprom will nowbe erased, and then all three LEDs arelighted. The LEDs will start to flashyellow-red. This starts FACTORY MODE!

To calibrate 4-20 mA input signal• Apply 4.0 mA input signal and then pushthe button three (3) times until all LEDsare lighted. The LEDs will now start flashyellow-red again.

Apply 20.0 mA input signal and then pushthe button three (3) times until all LEDsare lighted.

To calibrate 4-20 mA transmitteroutput signalNote! If no transmitter board is installedthe LEDs will start flash yellow-yellow andthe unit is ready for continued calibration.If there is a transmitter board installedthe LEDs will start flash yellow-green.

The feedback transmitter output signalon pin 9 and 10 will now follow the input

signal instead of the position. Apply 4.0mA input signal. Measure the output sig-nal and adjust the input signal up/downuntil the output signal is 4.0 mA. Pushthe button three times until all LEDs arelighted. The unit will now start to flashyellow-green again.

The output signal on pin 9 and 10 willcontinue to follow the input signal insteadof the position. Apply 20.0 mA input sig-nal. Measure the output signal and adjustthe input signal up/down until the outputsignal is 20.0 mA. Push the button threetimes until all LEDs are lighted.

The LEDs will start flash yellow-yellowand the unit is ready for continuedcalibration.

Press the button for 5 sec until the LEDsstart alternating, D20 starts to calibratestroke.

After calibration the unit will start runningin normal operation.

10.5 D20 Calibration of 4-20 mA input signal and/or 4-20mAfeedback transmitter

1 Input signal + 4-20 mA ,Hart,

2 Input signal – 4-20 mA ,Hart

3 Remote unit 4 Remote unit 5 Remote unit 9 4-20 mA + Feedback, 13-28 V DC10 4-20 mA – Feedback, 13-28 V DC11 Alarm output +, 8-28 V DC12 Alarm output –, 8-28 V DC

HART-connection

+ – + – + –

1 2 3 4 5 9 10 11 12

Remote unit

Option

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30

11. Trouble shooting

11.1 PMV D20 error codesAn unsuccessful calibration is indicated by the LED:s. The type of error is shownby the flash sequence.

R G

Error code Probable Cause Action

R Y G

(No movement)

Deviation between set valueand valve position.

No air supply orshaft do not move.

Pot not calibrated.

Hallsensor value too low.

Hallsensor span too low.

Hallsensor value too high.

Unit in Factory Mode.

4 - 20 mA feedback installed.

R G R

R R G

R Y R

Check air supplyCheck shaft movement.

Calibrate the pot.

Check hallsensorconnection.

Calibrate 4 - 20 mAinput signal.

Calibrate output.

R

(Alarm)

Y R

Y G

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31

11.2 PMV D20 symptoms and solutions

Failure Probable Cause Corrective action

No LED is flashing Current source below 3,6 mA . Verify current source supplies at least 3,6 mA.

Incorrect wiring polarity. Check wiring for correct polarity.

Valve position reading Stem position sensor mounting Reposition sensor. is not what is expected. is off 180 degrees.

Stroke not calibrated. Calibrate stroke.

Tight shutoff MPC (Minimum No action.position cutoff) is active.

Custom characterization or soft No action.stops active.

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32

12. Spare parts

1211

16

15 1918

17 1

21

2

14 3

5

8

7

9

4

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33

POS PMV P/N Description Remarks

1

2

3

3

4

4

5

5

5

5

7

8

9

11

12

14

14

14

14

14

14

15

15

15/16

15/16

15/16

15/16

17

18

19

21

31947

30116

D2-AS5D

D2-AS5N

D2-SP50 STD

D2-SP50 LT

7-SP82

7-SP82-I

7-SP82-H

7-SP82-I-H

30125

D2-SP17

7-SP25B

7-SP25BI

7-SP25

D2-SP14M

D2-SP14P

D2-SP14N

D2-SP14 D4

D2-SP14 D5

D2-SP14 D6

D2-SP40GB0

D2-SP40GC0

D2-SP40GB1

D2-SP40GC1

D2-SP40GB2

D2-SP40GC2

30144

30145

30395

30738

30737

30135

Housing

Lever arm set

Potentiometer assy. Compl.

Shaft D-type Linear, incl. nut

Shaft VDI/VDE 3845 Rotary

Air relay assy. incl. O-rings, screws, standard temp.

Air relay assy. incl. O-rings, screws, low temp.

Electronics

Electronics, Intrinsically safe

Electronics, HART

Electronics, HART Intrinsically safe

Indicator, flat assy.complete

Indicator, dome style assy complete.

Front cover, no indicator, black, incl. screws

Front cover,for indicator/dome, black, incl. screws

Inner cover assy

Mechanical switches assy. compl (incl. cams, screws)

Proximity switches assy. compl.

P+F NJ2-V3-N sensors assy. compl.

P+F SJ2 S1N sensors assy. compl.

P+F SJ2 SN sensors assy. compl.

P+F SJ2N sensors assy. compl.

Gauge block B 1/4"NPT, 1/4"NPT, 1/8"NPT, no gauges

Gauge block C 1/4"NPT, 1/4"NPT, 1/8"G, no gauges

Gauge block B 1/4"NPT, 1/4"NPT, 1/8"NPT, 1 gauge (SS/brass)

Gauge block C 1/4"NPT, 1/4"NPT, 1/8"G, 1 gauge (SS/brass)

Gauge block B 1/4"NPT, 1/4"NPT, 1/8"NPT, 2 gauges (SS/brass)

Gauge block C 1/4"NPT, 1/4"NPT, 1/8"G, 2 gauges (SS/brass)

Flowtop mounting kit incl. O-rings, screws

VDI/VDE 3847 mounting assy. incl. O-rings, screws

Double acting module incl 2 x Gauges

Plug and cable gland kit, black

Seal and O-ring kit

Screw and washer kit

N/A

EEx ia

HART

EEx ia, Hart

Page 34: PMV D20 Digital Positioner Operation Maintenance D20 EN.pdf · For D20 installed in hazardous areas, maintenance and repair must only to be made by authorized and trained staff.-Remove

Palmstierna International ABKorta Gatan 9SE-171 54 SolnaSWEDENTel: +46 (0) 8 555 106 00Fax: +46 (0) 8 555 106 01E-mail: [email protected]

USA, MexicoPMV-USA1440 Lake Front Circle, Unit 160The Woodlands, TX 77380USATel: +1 281 292 7500Fax: +1 281 292 7760E-mail: [email protected]

CanadaCancoppas Limited2595 Dunwin Drive, Unit 2Mississuga, Ont L5L 3N9CANADATel: +1 905 569 6246Fax: +1 905 569 6244E-mail: [email protected]

Asia Pacific HeadquartersFlowserve Pte Ltd.No. 12 Tuas Avenue 20REPUBLIC OF SINGAPORE 638824Tel: +65 (0) 687 98900Fax: +65 (0) 686 24940

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UKFlowserveAbex RoadNewbury, Berkshire, RG14 5EYUKTel: +44 (0) 1635 49 400Fax: +44 (0) 1635 36 034E-mail: [email protected]

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South AfricaFlowserveUnit 1, 12 Director RoadSpartan Ext. 21613 Kempton Park, GautengSOUTH AFRICATel: +27 (0) 11 397 3150Fax: +27 (0) 11 397 5300

The NetherlandsFabromatic BVRechtzaad 174703 RC RoosendaalTHE NETHERLANDSTel: +31 (0) 30 6771946Fax: +27 (0) 30 6772471E-mail: [email protected]

ChinaFlowserveHanwei BuildingNo. 7 Guanghua RoadChao Yang District100004 BeijingCHINATel: +86 (10) 6561 1900Fax: +86 (10) 6561 1899

FC

D P

ME

NIM

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