PALMSTIERNAS PMV P4 Manuel utilisateur

IOM Instructions

P4 • P5/EP5

alve Control System

Contents

1. Introduction ..............................................................................................4

2. Storage instructions..................................................................................6

PMV Positioner and feedback module storage and handling procedures ....6

Warehouse storage ........................................................................................6

Field storage .................................................................................................6

Pneumatic positioners...................................................................................6

Potential damage mechanism .......................................................................6

Storage Seal (P5/EP5) ..................................................................................7

3. Function.....................................................................................................8

4. Installation.................................................................................................9

Air requirements ...........................................................................................9

Installation ....................................................................................................9

5. Connections .............................................................................................10

6. Cam adjustment......................................................................................12

7. Calibration ..............................................................................................13

Calibration procedure .................................................................................13

8. Indicator adjustment..............................................................................14

9. Front cover and indicator cover............................................................14

10. Dampers.................................................................................................15

11. I/P Unit (P5/EP5)...................................................................................16

12. How to mount the I/P Unit to the positioner unit (P5/EP5) ..............17

13. Maintenance ..........................................................................................18

Pilot valve ...................................................................................................18

Diaphragm ..................................................................................................19

Feedback spring..........................................................................................20

Balance arm ................................................................................................20

Lower arm ..................................................................................................21

O-rings ........................................................................................................22

Filter plug (EP5) .........................................................................................22

14. Feedback unit (P5 or EP5)...................................................................23

15. Trouble shooting ...................................................................................24

16. Technical data .......................................................................................25

Dimensional drawing (P4)..........................................................................27

17. Spare parts, P4......................................................................................28

17. Spare parts, P5/EP5..............................................................................30

18. Certificates ............................................................................................34

Manufacturers declaration • Hersteller-Erklärung • Déclaration de fabricant

G B

Manufacturers declaration

in compliance with EC directive 89/ 392/ EEC, annex I I B and 89/ 336/ EEC.

We hereby confirm that the appliances described in this sheet has been manufactured in

compliance with the applicable standards and is intended for installation in a

machine/ application, and that commissioning is strictly prohibited until evidence has

been provided that the machine/ application in question is also in compliance

with EC directive 89/ 392/ EEC and 89/ 336/ EEC.

This manufacturers declaration is applicable to the following PMV-Positioner series:

P4, P5, EP5, F5.

Herstel ler-Erkärung

im sinne der EG-richtlinie 89/ 392/ EWG, A nhang I I B und 89/ 336/ EWG.

H iermit erklären wir, da§ die in diesem Blatt beschriebenen Geräte entsprechend den

gültigen Normen gebaut und zum Einbau in eine Maschine oder Applikation bestimmt

sind, sowie daß deren Inbetriebnahme so lange untersagt ist, bis festgestellt wurde, daß

diese Maschine/Applikation ebenfalls der EG-Richtlinie 89/ 392/ EWG und 89/ 336/

EWG entspricht. Diese H erstellererklärung hat für folgende PMV-Stellungsregler-Serien

Gültigkeit:

P4, P5, EP5, F5.

Déclaration de fabricant

au sens dela directive de la CE 89/ 392/ CEE, annexe I I B et CE/ 89/ 336/ CEE.

N ous déclarons par la présente que les appareils décrits sur cette page sont construits en

conformité avec les normes en vigueur et qu’ils sont destinés à être montés dans une

machine ou une application, nous déclarons également que leur mise en service est

interdite tant qu’il n’a pas été constaté que cette machine/application satisfait également à

la directive CE 89/ 392 CEE et CE/ 89/ 336/ CEE.

Cette déclaration de fournisseur est valable pour les types d’appareils PMV suivants:

P4, P5, EP5, F5.

Mr. Roland Wedebrand

President, Palmstiernas Instrument AB

1. Introduction

Option

The P4 is a pneumatic valve positioner for double acting actuators, rotary or linear. It can

also be used for single acting applications by simply plugging one of the outlet ports, C1 or

C2.

ATEX: II 2 G

Itfeaturesastandardized foot print, external zero adjustment,goldplatedspool valve, positive

internal pressure and a bright visible position indicator. The simple, sturdy design with few

moving parts together with the well proven spool valve design provides long and trouble

free operation. Together with the unit, a wide range of mounting kits are offered for quarter

turn and linear applications.

Calibration and set up is quick and simple, all done by thumb wheels. The unit requires a

minimum of maintenance and the only tool needed is a flat screw driver.

For installation of gauges T-connectors are required.

Always check www.pmv.nu for latest edition of manual.

Special Conditions for Safe Use

The enclosure is made of aluminium and any impact or friction caused by external

objects shall be avoided in the application.

Rubbing of the window with dry fabrics shall be avoided when the positioner is used in

an hazardous atmosphere in order to avoid potentially incendive static discharges.

The base unit of the system is the pneumatic positioner, used in either single or double acting

applications. P5 comes standard with built in dampers, a high gain spool valve assembly,

gauge ports and an O-ring sealed housing. The housing utilizes a unique O-ring seal that

can be adjusted to a sealed or drained position.

The modular design concept allows for easy addition of accessories such as I/P converter

and/or a feedback package, both which are isolated from the basic pneumatic unit. These

accessories can be factory or field mounted.

Ease of calibration and maintenance are built into to the design with easily accessible span

and zero adjustment, and very simple parts replacement.

ATEX: II 2 GD

EP5

The EP5 has same features and benefits as the P5 positioner. It’s modular to suit several

applications,

General applications, intrinsically safe, explosion proof and fail freeze versions are offered.

Intrinsically Safe: ATEX: EEX ia IIC T4 II 1 GD

CSA, FM Class I, Div, Group ABCD

Explosion proof: ATEX: EEX d IIB+H2, T4-T6 II 2 GD

CSA, FM Div I, Class 1,2 & 3 Group BCDEFG

Explosion proof I/P module

Mounting

adapter

plate

P5 pneumatic positioner

Gauges

Spindles

Mounting bracket

F5 feedback module

Standard or I/S

I/P-converter

module

Fail Freeze

I/P Module

F5 Explosion Proof

Dome

indicator

PMV Positioner and feedback module storage and handling procedures

PMV Positioners and feedback modules are precision instruments which should be stored

and handled accordingly to avoid problems or damage.

Electropneumatic positioners/feedback modules contain electronic components which can

be damaged by exposure to water.Appropriate precautions should be taken to protect units

while in storage.

Warehouse storage

Stored in original PMV shipping containers, units should be stored in an environmentally

controlled area, i.e. clean, cool (15-26°C, 60-80°F) and dry, out of direct sunlight or weather

exposure.

Field storage

Note: Once the air supply to the positioner is connected and turned on, internal air bleed

will prevent the ingress of moisture and protect the unit from corrosion. It is recommended

that the air supply be left on at all times.

• If units are installed immediately, turn, and leave on, the air supply.

• If positioners must be stored outdoors, tighten all covers which may have loosened in

shipment, make sure all open enclosure entry points are sealed.

Feedback modules should have cover tightened and conduits entries sealed. Positioners/

Feedback modules should be wrapped and sealed air and watertight with desiccant inside

the plastic, units should be securely covered with an opaque cover and not exposed to direct

sunlight, rain or snow.

Pneumatic positioners

Units should have all ports sealed and be protected from direct exposure to weather.

For long term storage (>1 month) or overseas shipment units should be protected with

plastic and desiccant.

Potential damage mechanism

When units are stored in hot, humid climates, the daily heating/cooling cycle will cause air

to expand/contract and be drawn in and out of the positioner/feedback housing.

2. Storage instructions

Dependent on the local temperature variations, humidity and dew points and time in storage

condensation could occur and accumulate inside on the I/P Converter causing erratic opera-

tion or failure due to water and corrosion. The potential for condensation damage is especially

high in southern climates and aggravated if units are exposed to direct sunlight.

For further assistance, please contact you nearest PMV office.

Storage Seal (P5/EP5)

P5/EP5 is supplied with all enclosure entry points sealed.The seal is only a storage seal, not

to be used as seal when P5/EP5 is in operation. If Storage Seal is removed or damaged, make

sure all open enclosure entry points are proper resealed before further shipping or storage.

Use circular stickers marked I, S and OUT, supplied on Storage Seal or vapour proof tape.

Remove Storage Seal from connection block, mount positioner on actuator/valve, make

connections according to section 5, (Page 10). Calibrate span and Zero according to section

7, (Page 13).

Clean any oil/debris off the connecting block, then reseal open enclosure entry ports, use

circular stickers marked I, S and OUT, supplied on Storage Seal or vapour proof tape.

EP5

Follow P5 instructions as above. Remove Storage Seal for conduit entry IE, connect input

signal cable and install proper cable gland to secure the units sealing.

P5-SEAL

IP5-SEAL

IP5 seal P5 seal

The P4 and P5/EP5 operates on a force balance principal. Force is originated by the signal

pressure transmitted through a diaphragm on to the balance arm. The opposing force is

achieved through the feedback spring and is proportional to the position of the lower arm.

The lower arm position is determined by the position of the cam which is secured to the

spindle and connected to the actuator shaft thus providing the feedback from the actuator/

valve. When these two forces are equal, the balance arm and the spool in the pilot valve are

in a neutral position — the complete unit is in a balanced position. Air is supplied to the

pilot valve through port S, and controls the air flow through ports C1 and C2

Assume an equilibrium position.

An increased control pressure will deflect the diaphragm 1down, compressing the feedback

spring 3. The balance arm 2moves the spool 7in the pilot valve 8furnishing supply air to

theactuator, while at the same time air is exhausted from actuator and is vented to atmosphere

through the pilot valve and the OUT port .With the increased supply air, the actuator rotates

(or moves linearly) moving the positioner spindle 6. The spindle and cam 5rotate, forcing

the lower arm 4upwards compressing the feedback spring 3. This motion will continue

until the two forces are equal and the unit is in an equilibrium position.

3. Function

I7312

S856 4

Air requirements

Maximum supply pressure is 1 MPa (150 psi). Supply air shall be clean, dry and free from

oil, water, moisture, foreign parts and debris.

The air shall be freeze-dried or similar to a dew point of at least 10°C (18°F) below lowest

expected ambient temperature.

A <40µfilter/regulator is recommended to be installed as close to P4/P5/EP5 as possible to

ensure proper supply air quality.

Before making pneumatic connections to the positioner, it is recommended that the supply

air lines are opened up and allowed to vent for 2-3 minutes to clear any debris from the line.

It is further recommended that a large paper bag is used to collect any oil or humidity that

maybepresent in the line during this purging,direct the air flow into the bag. Should exessive

amounts of oil and/or humidity be present at this stage, a review of the pneumatic system

should be carried out and the problem corrected.

Poorairqualityisone of the majorcausesofpremature failureofpneumaticequipment.

Installation

P4 and P5/EP5 mounts on to the actuator using either the ISO F05 holes 4and a PMV ISO

mounting kit or by using the optional mounting adaptor and screws 5to mount P5 on to

existing PMV mounting kits.

Proper alignment of the positioner spindle to the actuator shaft is very important since

improper alignment can cause excessive wear and friction to the positioner.

P5/EP5 only

Thespindle/positionershaftassemblyallowsforquickandsimplespindlechanges.To ensure

the proper connection, the spindle 3has a spring clip 2that must be properly installed. A

solid ”click” should be felt when assembling the two pieces insuring that the two flats 1 are

engaged into the positioner shaft groove.

The spindle can be removed, by inserting two screwdrivers under the two tapered surfaces

of the spindle and bending carefully. When the spring clip releases the spindle will eject.

4. Installation

5 4

P4/P5 P5/EP5

Air connections are tapped for 1/4" G or NPT male connectors and are clearly marked.

Gauge ports are for 1/8" G or NPT.

We recommend use of Loctite® 577 or similar user preferred for sealing.

Electrical connection on I/P unit accepts 1/2" NPT or PG 13,5 (M20) cable gland.

Port I Input instrument pneumatic signal 20-100kPa (3-15 psi)

Port S Supply air, maximum 1 MPa (150 psi) Minimum 0,15 MPa

(21 psi) for EP5

Port C1, C2 Actuator connections (0,2-1 MPa). C2 opening port.

For single acting operation plug port C1 for increasing signal to open valve. Plug C2 for

decreasing (reverse) signal to open valve.

OUT Exhaust air port. Do not block! Exhaust filter optional.

Port Ip Gauge port for pneumatic input signal.

Port IEInput electric signal (4-20 mA) (On the I/P unit.)

Port P Gauge port for I/P unit output pressure ( On the I/P unit)

5. Connections

P5/EP5 only

Ports Ip, P, S, C1 and C2 are sealed with plugs. To install gauges,

unscrew plugs and replace with gauges.

Port OUT is for venting the unit.All air from the positioner, actuator

and I/P unit is vented to atmosphere through this port. Do not block

this port. A high flow silencer or an exhaust pipe can be connected to

this port to prevent foreign objects from entering and blocking the

units exhaust. Connector in exhaust port must not have less than 9

mm (3/8“) orfice.

When using gases other than air for supply — Please contact PMV.

On EP5 (P5 with I/P unit installed) I/P unit is supplied with air from

port S. Port’Iis automaticly sealed off and protected. No connection

shall be made to this port. See pages 13 and 14 for more information.

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