Burkert 8694 User manual

Quickstart

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Type 8694

Positioner TopControl Basic

Electropneumatic position controller

Elektropneumatischer Stellungsregler

Positionneur électropneumatique

We reserve the right to make technical changes without notice.

Technische Änderungen vorbehalten.

Sous réserve de modifications techniques.

Operating Instructions 2107/08_EU-ML_00805912 / Original DE

1 QUICKSTART ........................................................................ 4

1.1 Denitionofterm/abbreviation .................................. 4

1.2 Symbols ....................................................................... 4

2 AUTHORIZED USE ............................................................... 5

2.1 Restrictions ................................................................. 5

3 BASIC SAFETY INSTRUCTIONS .......................................... 5

4 GENERAL INFORMATION .................................................... 7

4.1 Contact address .......................................................... 7

4.2 Warranty ...................................................................... 7

4.3 Informationontheinternet .......................................... 7

5 STRUCTURE AND FUNCTION ............................................. 7

6 TECHNICAL DATA ................................................................. 8

6.1 Conformity ................................................................... 8

6.2 Standards .................................................................... 8

6.3 Licenses ...................................................................... 8

6.4 Operating conditions ................................................... 9

6.5 Mechanical data .......................................................... 9

6.6 Typelabels ................................................................... 9

6.7 Pneumatic data ......................................................... 10

6.8 Electrical data ............................................................ 10

6.9 Factorysettingsofthepositioner .............................. 11

7 INSTALLATION .................................................................... 12

7.1 Safetyinstructions ..................................................... 12

7.2 Installingthepositioneronprocessvalvesbelongingto

series 2103 and 23xx ................................................. 12

7.3 Installingthepositioneronprocessvalvesbelongingto

series 26xx and 27xx ................................................... 13

8 PNEUMATIC INSTALLATION .............................................. 15

9 ELECTRICAL INSTALLATION ............................................. 16

9.1 Safetyinstructions ..................................................... 16

9.2 Electrical installation 24 V DC ................................... 16

9.3 ElectricalinstallationASInterface .............................. 20

10 START-UP ............................................................................ 21

10.1 Safetyinstructions ..................................................... 21

10.2 Automatic adjustment X.TUNE ................................. 21

10.3 Control and display elements .................................... 23

11 SAFETY POSITIONS ........................................................... 27

12 ACCESSORIES ................................................................... 28

12.1 Communicationssoftware......................................... 28

12.2 USBinterface ............................................................ 28

12.3 Download .................................................................. 28

13 PACKAGING, TRANSPORT, STORAGE ............................. 28

Table of contents

english

Type 8694

Quickstart

1 QUICKSTART

TheQuickstartdescribetheentirelifecycleofthedevice.Keepthe

Quickstartinalocationwhichiseasilyaccessibletoeveryuserand

maketheQuickstartavailabletoeverynewownerofthedevice.

Important Safety Information.

ReadQuickstartcarefullyandthoroughly.Studyinparticular

the chapters entitled “Basicsafetyinstructions” and “Autho-

rizeduse”.

▶Quickstartmustbereadandunderstood.

Quickstartexplains,forexample,howtoinstallandstart-upthe

device.

Adetaileddescriptionofthedevicecanbefoundintheoper-

atinginstructionsforpositionerType8694.

TheoperatinginstructionscanbefoundontheInternetat:

www.burkert.com

1.1 Denition of term / abbreviation

Theterm“device”usedintheseinstructionsalwaysstandsfor

the positioner Type 8694.

Intheseinstructions,theabbreviation“Ex”alwaysrefersto

“potentiallyexplosiveatmosphere”.

1.2 Symbols

Thefollowingsymbolsareusedintheseinstructions.

DANGER!

Warns of an immediate danger.

▶Failuretoobservethewarningmayresultinafatalorserious

injury.

WARNING!

Warns of a potentially dangerous situation.

▶Failuretoobservethewarningmayresultinseriousinjuries

or death.

CAUTION!

Warns of a possible danger.

▶Failure to observe this warning may result in a medium or

minor injury.

NOTE!

Warns of damage to property.

indicatesimportantadditionalinformation,tipsand

recommendations.

referstoinformationintheseoperatinginstructionsorin

other documentation.

▶Designatesaninstructiontopreventrisks.

→designatesaprocedurethatmustbecarriedout.

english

Type 8694

Authorized use

2 AUTHORIZED USE

Non-authorized use of the positioner Type 8694 may be a

hazard to people, nearby equipment and the environment.

▶Thedeviceisdesignedtobemountedonpneumaticactua-

torsofprocessvalvesforthecontrolofmedia.

▶Donotexposethedevicetodirectsunlight.

▶Use according to the authorized data, operating conditions

andconditionsofusespeciedinthecontractdocuments

andoperatinginstructions.Thesearedescribedinthechap-

ter entitled “6Technicaldata”.

▶Thedevicemaybeusedonlyinconjunctionwiththird-party

devicesandcomponentsrecommendedandauthorizedby

Bürkert.

▶Inviewofthelargenumberofoptionsforuse,beforeinstal-

lation,itisessentialtostudyandifnecessarytotestwhether

thepositionerissuitablefortheactualuseplanned.

▶Correct transportation, correct storage and installation and

carefuluseandmaintenanceareessentialforreliableand

faultlessoperation.

▶Use the positioner Type 8694 only as intended.

3 BASIC SAFETY INSTRUCTIONS

Thesesafetyinstructionsdonotmakeallowanceforany

•contingenciesandeventswhichmayariseduringtheinstallation,

operationandmaintenanceofthedevices.

•localsafetyregulations–theoperatorisresponsibleforobserving

theseregulations,alsowithreferencetotheinstallationpersonnel.

Risk of injury from high pressure in the equipment/device.

▶Beforeworkingonequipmentordevice,switchothepressure

anddeaerate/drainlines.

Risk of electric shock.

▶Beforeworkingonequipmentordevice,switchothepower

supplyandsecuretopreventreactivation.

▶Observeapplicableaccidentpreventionandsafetyregulations

forelectricalequipment.

english

Type 8694

Basic safety instructions

General hazardous situations.

Topreventinjury,ensure:

▶In the potentially explosive atmosphere the positioner Type

8691 may be used only according to the specication on

theseparateapprovalsticker.Foruseobservetheadditional

instructions enclosed with the device together with safety

instructionsforpotentiallyexplosiveatmosphere.

▶Deviceswithoutaseparateapprovalstickermaynotbeused

inapotentiallyexplosiveatmosphere.

▶Installationandrepairworkmaybecarriedoutbyauthorized

techniciansonlyandwiththeappropriatetools.

▶Afteraninterruptioninthepowersupplyorpneumatic

supply,ensurethattheprocessisrestartedinadenedor

controlled manner.

▶Thedevicemaybeoperatedonlywheninperfectcondition

andinconsiderationoftheoperatinginstructions.

▶Thegeneralrulesoftechnologyapplytoapplicationplanning

andoperationofthedevice.

Topreventdamagetopropertyofthedevice,ensure:

▶Donotfeedanyaggressiveorammablemediaintothepilot

air port.

▶Donotfeedanyliquidsintothepilotairport.

▶When unscrewing and screwing in the body casing or the

transparentcap,donotholdtheactuatoroftheprocessvalve

buttheconnectionhousingofType8694.

▶Donotputanyloadsonthehousing(e.g.byplacingobjects

on it or standing on it).

▶Donotmakeanyexternalmodicationstothedevice

housings.

NOTE!

Electrostatic sensitive components / modules.

The device contains electronic components which react sen-

sitively to electrostatic discharge (ESD). Contact with electro-

statically charged persons or objects is hazardous to these

components.Intheworstcasescenario,theywillbedestroyed

immediatelyorwillfailafterstart-up.

▶ObservetherequirementsinaccordancewithEN61340-5-1to

minimizeoravoidthepossibilityofdamagecausedbysudden

electrostatic discharge.

▶Alsoensurethatyoudonottouchelectroniccomponentswhen

thepowersupplyvoltageispresent.

english

Type 8694

General information

4 GENERAL INFORMATION

4.1 Contact address

Germany

Bürkert Fluid Control System

Sales Center

Chr.-Bürkert-Str. 13-17

D-74653Ingelngen

Tel. + 49 (0) 7940 - 10 91 111

Fax + 49 (0) 7940 - 10 91 448

E-mail:[email protected]

International

Contactaddressescanbefoundonthenalpagesoftheprinted

operating instructions.

AndalsoontheInternetat:

www.burkert.com

4.2 Warranty

ThewarrantyisonlyvalidifthepositionerType8694isusedas

intendedinaccordancewiththespeciedapplicationconditions.

4.3 Information on the internet

TheoperatinginstructionsanddatasheetsforType8694canbe

foundontheInternetat:

www.burkert.com

5 STRUCTURE AND FUNCTION

Positioner

Actuator

Valvebody

Actuator+Valvebody=Processvalve

Fig. 1: Structure 1

PositionerType8694isanelectropneumaticpositioncontrollerfor

pneumaticallyactuatedcontrolvalveswithsingle-actingactuators.

Togetherwiththepneumaticactuator,thepositionerformsafunc-

tional unit.

Thecontrolvalvesystemscanbeusedforawiderangeofcontrol

tasksinuidtechnologyand,dependingontheapplicationcondi-

tions,dierentprocessvalvesfromtheBürkertrangecanbecom-

binedwiththepositioner.Angleseatvalves,straightseatvalves,

diaphragmvalvesorballvalvesaresuitable.

Thepositionoftheactuatorisregulatedaccordingtotheposition

set-point value. The nominal position value is specied by an

external standard signal.

english

Type 8694

Technical data

Pilot air port

(label:1)

Exhaust air port

(label:3)

Pressurelimitingvalve

Electrical connection

(cableglandorcircular

plug-in connector)

DIPSwitches

Keys

Communicationsinterface

LED

Airintakelter

Pilotairoutletonlyfor

series 26xx and 27xx

Additional exhaust air port

(label:3.1)

onlyforType23xxand2103

withpilot-operatedcontrol

systemforhighairowrate

(actuator size ø 130)

Connection housing

Fig. 2: Structure 2

6 TECHNICAL DATA

6.1 Conformity

InaccordancewiththeEUDeclarationofconformity,the

positionerType8694iscompliantwiththeEUDirectives.

6.2 Standards

Theappliedstandards,whichverifyconformitywiththeEU

Directives,canbefoundontheEU-TypeExaminationCerticate

and/ortheEUDeclarationofConformity.

6.3 Licenses

Theproductisapprovedforuseinzone2and22inaccordance

withATEXdirective2014/34/EUcategory3GD.

Observeinstructionsonoperationinanexplosion-risk

(Ex)area.ObservetheATEXadditionalinstructions.

TheproductiscULusapproved.InstructionsforuseintheUL

area see chapter “6.8Electricaldata”.

english

Type 8694

Technical data

6.4 Operating conditions

WARNING!

Solar radiation and temperature uctuations may cause mal-

functions or leaks.

▶Ifthedeviceisusedoutdoors,donotexposeitunprotected

totheweatherconditions.

▶Ensurethatthepermittedambienttemperaturedoesnot

exceedthemaximumvalueordropbelowtheminimumvalue.

Ambienttemperature seetypelabel

Degreeofprotection

Evaluatedbythemanufacturer: EvaluatedbyUL:

IP65/IP67accordingtoEN60529*UL Type 4x Rating

indoor only*

Operatingaltitude   upto2000mabovesealevel

Relativeairhumidity   max.90%at60°C

(non condensing)

* Only if cables, plugs and sockets have been connected correctly and

in compliance with the exhaust air concept see chapter “8 Pneumatic

installation”.

6.5 Mechanical data

Dimensions See data sheet

Housingmaterial exterior:PPS,PC,VA,

interior:PA6;ABS

Sealingmaterial  EPDM/(NBR)

Strokerangeofvalvespindle  2–45mm

6.6 Type labels

6.6.1 Type label standard (example)

8694 24 V DC

single act Pilot 0,6

Pmax7bar

Tamb0°C-+60°C

S/N001000

00185134

D-74653 Ingelfingen

W14UN

Identicationnumber

Operatingvoltage/

Control

Max. operating

pressure

Type

Controlfunction-

Pilotvalve

Bar-code

Serialnumber-

CE mark

Max.ambient

temperature

Fig. 3: Type label (example)

6.6.2 UL type label (example)

8694 -E3-...-0 PU02

Single act Pilot 3.0 24V

Pmax7bar

Tamb-10-+55°C

S/N1001

00123456

D-74653 Ingelfingen

W15MA

Identicationnumber;Dateof

manufacture(encoded)

Max. operating pressure

Type;FeaturesofthetypecodeapplicabletoUL

andATEX Controlfunction;pilotvalve;

Supplyvoltagepilotvalve

Bar code

Serialnumber;CEmark

Max.ambienttemperature

Fig. 4: UL type label (example)

english

Type 8694

Technical data

6.6.3 UL additional label (example)

Type4Xenclosure

NECClass2only

Supplyvoltage:24V Supplyvoltagedevice

Circuitwithlimitedpower

Degreeofprotection

Fig. 5: UL additional label (example)

6.7 Pneumatic data

Control medium neutral gases, air

QualityclassesinaccordancewithISO8573-1

 Dustcontent Class7: max.particlesize40µm,

   max.particledensity10mg/m³

 Watercontent Class3: max.pressuredewpoint

-20°Cormin.10°Cbelowthe

lowestoperatingtemperature

 Oilcontent ClassX: max.25mg/m³

Temperature range

controlmedium    -10–+50°C

Pressure range

controlmedium    3–7bar

Airoutputofpilotvalve  7lN/min(foraerationanddeaeration)

(QNn-valueaccordingtodenition

forpressuredropfrom7to6bar

absolute)

optional:130lN/min

(foraerationanddeaeration)

(only single-acting)

Connections Plug-in hose connector ∅6mm/1/4“

SocketconnectionG1/8

6.8 Electrical data

WARNING!

OnlycircuitswithlimitedpowermaybeusedforULapproved

componentsaccordingto“NECClass2”.

6.8.1 Electrical data without bus control

24 V DC

Protectionclass   IIIasperDINEN61140(VDE0140-1)

Connections    CableglandM16x1.5,wrenchsize22

(clampingarea5–10mm)

withscrew-typeterminalsforcable

cross-sections0.14–1.5mm²

Circular plug-in connector

(M12 x 1, 8-pole)

Pilotvalve

 Operatingvoltage  24VDC±10%

-max.residualripple10%

 Powerinput   ≤3,5W

Inputresistancefor

set-pointvaluesignal 75Ωat0/4–20mA/

12bitresolution

Analoguepositionfeedback

max.loadforcurrentoutput

0/4–20mA    560Ω

english

Type 8694

Technical data

Digitalinput     0–5V=log“0”,

12–30V=log“1”

invertedinputinreverseorder

Communications

interface      DirectconnectiontoPCviaUSB

adapterwithintegratedinterface

driver,communicationwithcommu-

nicationssoftware.

6.8.2 Electrical data with AS interface bus

control

Protectionclass     IIIasperDINEN61140

(VDE0140-1)

Connections Circular plug-in connector

(M12 x 1, 4-pole)

Operatingvoltage    29.5V–31.6VDC

(accordingtospecication)

Devices without external supply voltage:

Max.powerconsumption  150mA

Devices with external supply voltage:

Externalsupplyvoltage   24V±10%

  Thepowersupplyunitmustincludeasecuredisconnection

inaccordancewithIEC364-4-41(PELVorSELV)

Max.powerconsumption  100mA

Max.powerconsumption

fromASinterface    50mA

6.9 Factory settings of the positioner

FunctionscanbeactivatedviaDIPswitches:

Function Parameter Value

CUTOFF Sealingfunctionbelow

Sealingfunctionabove

2%

98%

CHARACT Select characteristic FREE1)

DIR.CMD Eectivedirectionset-point

value

rise

Tab. 1: Factory settings - Functions

Additionalfunctionsaredescribedintheoperating

instructions Type 8694.

TheseinstructionscanbefoundontheInternetat

www.burkert.com.

Without change to the settings via the communications software a

linear characteristic is stored in FREE.

english

Type 8694

Installation

7 INSTALLATION

Onlyforpositionerwithoutpre-assembledprocessvalve.

7.1 Safety instructions

DANGER!

Risk of injury from high pressure in the equipment/device.

▶Beforeworkingonequipmentordevice,switchothepressure

anddeaerate/drainlines.

Risk of electric shock.

▶Beforeworkingonequipmentordevice,switchothepower

supplyandsecuretopreventreactivation.

▶Observeapplicableaccidentpreventionandsafetyregulations

forelectricalequipment.

WARNING!

Risk of injury from improper installation.

▶Installationmaybecarriedoutbyauthorizedtechnicians

onlyandwiththeappropriatetools.

Risk of injury from unintentional activation of the system and

an uncontrolled restart.

▶Securesystemfromunintentionalactivation.

▶Followingassembly,ensureacontrolledrestart.

7.2 Installing the positioner on process

valves belonging to series 2103 and

23xx

NOTE!

When mounting on process valves with a welded body,

follow the installation instructions in the operating instruc-

tions for the process valve.

Whenthepositionerisbeinginstalled,thecolletsofthe

pilotairportsmustnotbettedtotheactuator.

→Align the puck and the positioner until

1. thepuckcanbeinsertedintotheguiderailofthe

positioner (see “Fig.6”) and

2. theconnectionpiecesofthepositionercanbeinserted

intothepilotairportsoftheactuator(seealso“Fig.6”).

NOTE!

Damaged printed circuit board or malfunction.

▶Ensurethatthepuckissituatedatontheguiderail.

Guiderail

Puck

Fig. 6: Aligning the puck

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Type 8694

Installation

→Pushthepositioner,withoutturningit,ontotheactuatoruntil

nogapisvisibleontheformseal.

NOTE!

Too high torque when screwing in the fastening screw does

not ensure degree of protection IP65 / IP67.

▶Thefasteningscrewsmaybetightenedtoamaximum

torqueof1.5Nmonly.

→Attachthepositionertotheactuatorusingthetwosidefas-

teningscrews.Indoingso,tightenthescrewsonlyhand-tight

(max.torque:1.5Nm).

Pilot air

ports

Connection

pieces

Fastening

screws

max.1.5Nm

Actuator

Fig. 7: Installing the positioner, series 2103, 2300 and 2301

7.3 Installing the positioner on process

valves belonging to series 26xx and

27xx

Procedure:

Guiderail

Puck

Fig. 8: Aligning the puck

→Push the positioner onto the actuator. The puck must be

alignedinsuchawaythatitisinsertedintotheguiderailof

the positioner.

NOTE!

Damaged printed circuit board or malfunction.

▶Ensurethatthepuckissituatedatontheguiderail.

→Pressthepositionerallthewaydownasfarastheactuator

and turn it into the required position.

english

Type 8694

Installation

Ensurethatthepneumaticconnectionsofthepositioner

andthoseoftheactuatoraresituatedpreferablyverti-

callyoneabovetheother(see“Fig.9”).

NOTE!

Too high torque when screwing in the fastening screw does

not ensure degree of protection IP65 / IP67.

▶Thefasteningscrewsmaybetightenedtoamaximum

torqueof1.5Nmonly.

→Attachthepositionertotheactuatorusingthetwosidefas-

teningscrews.Indoingso,tightenthescrewsonlyhand-tight

(max.torque:1.5Nm).

NOTE!

Damage or malfunction due to ingress of dirt and moisture.

ToobservedegreeofprotectionIP65/IP67:

▶Inthecaseofactuatorsize ∅ 80, ∅ 100

connectthepilotairoutletwhichisnotrequiredtothefree

pilotairportoftheactuatororsealwithaplug.

▶Inthecaseofactuatorsize∅ 125

seal the pilot air outlet 22whichisnotrequiredwithaplug

andfeedthefreepilotairportoftheactuatorviaahoseinto

adryenvironment.

Pilot air outlet 21

Pilot air outlet 22

Upper pilot air port

Lowerpilotairport

Fasteningscrews

max.1.5Nm

Example ∅

80, CFA

Fig. 9: Installing the pneumatic connection to actuator, series 26xx and

27xx

→Makethepneumaticconnectionbetweenthepositionerand

actuatorwiththe“Tab.2:Pneumaticconnectiontoactuator”.

“Inrestposition”meansthatthepilotvalvesoftheposi-

tioner Type 8694 are isolated or not actuated.

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Type 8694

Pneumatic installation

Control function A (CFA)

Processvalveclosedinrestposition(byspringforce)

Actuator size ∅ 80, ∅ 100

∅ 125

Positioner

Pilot air outlet 22212221

Actuator

Upper pilot air port

Lowerpilotairport

Dry area

Control function B (CFB)

Processvalveopeninrestposition(byspringforce)

Actuator size ∅ 80, ∅ 100

∅ 125

Positioner

Pilot air outlet 22212221

Actuator

Upper pilot air port

Lowerpilotairport

Dry area

Tab. 2: Pneumatic connection to actuator

8 PNEUMATIC INSTALLATION

DANGER!

Risk of injury from high pressure in the equipment/device.

▶Beforeworkingonequipmentordevice,switchothepressure

anddeaerate/drainlines.

Procedure:

→Connect the control medium to the pilot air port (1)

(3–7bar;instrumentair,freeofoil,wateranddust).

→Attach the exhaust air line or a silencer to the exhaust air port

(3)

and,ifavailabletotheexhaustairport(3.1)(see“Fig.10”).

Keeptheadjacentsupplypressurealways atleast0.5–

1barabovethepressurewhichisrequiredtomovethe

actuator to its end position. This ensures that the control

behaviorisnotextremelynegativelyaectedintheupper

strokerangeonaccountoftoolittlepressuredierence.

During operation keep the uctuations of the pressure

supplyaslowaspossible(max.±10%).Ifuctuationsare

greater,thecontrolparametersmeasuredwiththeX.TUNE

functionarenotoptimum.

english

Type 8694

Electrical installation

Importantinformationfortheproblem-freefunctioningof

thedevice:

▶Theinstallationmustnotcausebackpressuretobuild

up.

▶Select a hose for the connection with an adequate

cross-section.

▶Theexhaustairlinemustbedesignedinsuchawaythat

nowaterorotherliquidcangetintothedevicethrough

the exhaust air port (3) or (3.1).

Additional exhaust air port

(label:3.1)

onlyforType23xxand2103

withpilot-operatedcontrolsystem

forhighairowrate(actuatorsizeø130)

Pilot air port

(label:1)

Exhaust air port

(label:3)

Fig. 10: Pneumatic connection

Caution: (Exhaust air concept):Incompliancewithdegree

ofprotectionIP67,anexhaustairlinemustbeinstalledin

the dry area.

9 ELECTRICAL INSTALLATION

Allelectricalinputsandoutputsofthedevicearenotgalvanically

isolatedfromthesupplyvoltage.

9.1 Safety instructions

DANGER!

Risk of electric shock.

▶Beforeworkingonequipmentordevice,switchothepower

supplyandsecuretopreventreactivation.

▶Observeapplicableaccidentpreventionandsafetyregulations

forelectricalequipment.

WARNING!

Risk of injury from improper installation.

▶Installationmaybecarriedoutbyauthorizedtechnicians

onlyandwiththeappropriatetools.

Risk of injury from unintentional activation of the system and

an uncontrolled restart.

▶Securesystemfromunintentionalactivation.

▶Followinginstallation,ensureacontrolledrestart.

Minimumtemperatureratingofthecabletobeconnectedtothe

eldwiringterminals:75°C

9.2 Electrical installation 24 V DC

Twokindsofconnectionsareusedfortheelectricalbondingof

thepositioner:

•Cableglandwithscrew-typeterminals

•Multi-polewithcircularplug-inconnectorM12x1,8-pole

english

Type 8694

Electrical installation

9.2.1 Electrical installation with cable gland

NOTE!

Breakage of the pneumatic connection pieces due to rota-

tional impact.

▶Whenunscrewingandscrewinginthebodycasing,donot

holdtheactuatoroftheprocessvalvebuttheconnection

housing.

→Unscrewthebodycasing(stainlesssteel)inacounter-clockwise

direction.

Body casing

Connection housing

Actuator

Fig. 11: Open positioner

→Pushthecablesthroughthecablegland.

→Connectthewires.

22)

32)

Fig. 12: Screw-type terminals

Input signals from the control centre (e.g. PLC)

Terminal Conguration External circuit / signal level

Set-pointvalue+

Set-pointvalue

GND

+(0/4...20mA)

GND

1 Digital input + 1 + 0 ... 5 V (log. 0)

10 ... 30 V (log. 1)

withreferencetoterminal7(GND)

Tab. 3: Assignment of screw-type terminals - input signals of the

control center

Operating voltage

Terminal Conguration External circuit

Operatingvoltage+

Operatingvoltage

GND

24VDC±10%

max. residual

ripple10%

Tab. 4: Assignment of screw-type terminals - operating voltage

english

Type 8694

Electrical installation

Output signals to the control center (e.g. PLC; for analog

output option only)

Terminal Conguration External circuit / signal level

Analogue position

feedback+

Analogue position

feedbackGND

+(0/4...20mA)

3GND

Tab. 5: Assignment of screw-type terminals - output signals to the

control center - option

Seal

Body casing

Connection housing

Fig. 13: Position of the seal in the body casing

→Checkthatthesealiscorrectlypositionedinthebodycasing.

NOTE!

Breakage of the pneumatic connection pieces due to rota-

tional impact.

▶Whenunscrewingandscrewinginthebodycasing,donot

holdtheactuatoroftheprocessvalvebuttheconnection

housing.

Damage or malfunction due to penetration of dirt and

humidity.

ToensuredegreeofprotectionIP65/IP67:

▶Tightentheunionnutonthecableglandaccordingtothecable

size or dummy plugs used (approx.1.5Nm).

▶Screwthebodycasinginalltheway.

→Tightenunionnutonthecablegland(torqueapprox.1.5Nm).

→Closethedevice(assemblytool:6740772)).

Whenthesupplyvoltageisapplied,thepositionerisoperating.

→Actuatetheautomaticadjustmentofthepositioner,as

describedinthechapterentitled“10.2 Automatic adjustment

X.TUNE”.

2) Theassemblytool(674077)isavailablefromyourBürkertsalesoce.

english

Type 8694

Electrical installation

9.2.2 Electrical installation 24 V DC with circular

plug-in connector

→Connectthepositioneraccordingtothetable.

Fig. 14: Circular plug M12 x 1, 8-pole

Input signals of the control center (e.g. PLC)

Pin Wire

color3) Conguration External circuit / signal level

white

brown

Set-pointvalue

(0/4...20mA)

Set-pointvalue

GND

+(0/4...20mA)

GND

grey

pink

Digital input +

Digital input

GND

5+ 0 ... 5 V (log. 0)

10 ... 30 V (log. 1)

identicaltoPin3(GND)

Tab. 6: Pin assignment - input signals of the control center

Operating voltage

Pin Wire

color3) Conguration External circuit

green

yellow

GND

+ 24 V

24VDC±10%

max. residual

ripple10%

Tab. 7: Pin assignment - operating voltage

Output signals to the control center (e.g. PLC) - (required for

analogue output option only)

Pin Wire

color3) Conguration External circuit / signal level

red

blue

Analogue

position

feedback+

Analogue

position

feedbackGND

+(0/4...20mA)

7GND

Tab. 8: Pin assignment - output signals of the control center - option

Whenthesupplyvoltageisapplied,thepositionerisoperating.

→Actuatetheautomaticadjustmentofthepositioner,as

describedinthechapterentitled“10.2 Automatic adjustment

X.TUNE”.

3) The indicated colors refer to the connecting cable available as an

accessory (919061).

english

Type 8694

Electrical installation

9.3 Electrical installation AS Interface

Adetaileddescriptionofthebuscommunicationcanbe

foundintheoperatinginstructionsType8694.

9.3.1 Connection with circular plug-in connector

M12 x 1, 4-pole, male

Connector views

Theviewsshowtheimagefromthefrontlookingatthepins,the

solderconnectionsarebehindthem.

Pin4:

Pin1:

Bus +

Pin3:

Bus–

Pin2:

Fig. 15: Bus connection without external supply voltage

Pin4:

24 V +

Pin1:

Bus +

Pin3:

Bus–

Pin2:

GND

Fig. 16: Bus connection with external supply voltage (optional)

Busconnectionwithoutexternal/withexternalsupplyvoltage

Pin Designation Conguration

1Bus + ASInterfacebusline+

2NCorGND

(optional)

notusedorexternalsupplyvoltage–

(optional)

3Bus– ASInterfacebusline–

4NCor24V+

(optional)

notusedorexternalsupplyvoltage+

(optional)

Tab. 9: Pin assignment of circular plug-in connector for AS Interface

Whenthesupplyvoltageisapplied,thepositionerisoperating.

→Actuatetheautomaticadjustmentofthepositioner,as

describedinthechapterentitled“10.2 Automatic adjustment

X.TUNE”.

9.3.2 Connection with multi-pole cable and

ribbon cable terminal

Asanalternativetothebusconnectionmodelwith4-polecircular

plug,thereisthepositionerwithmulti-polecable(M12circularplug)

andribboncableterminal.Thewiringdiagramofthecircularplug

correspondstothebusconnectionoftheM124-polecircularplug

andcaneasilybeconnectedtotheribboncableterminal.

Thebuslinemayhaveamaximumlengthof100m.When

designingthesystem,considerthelengthofthecablewhich

isfeddirectlytothepositionerforthe maximumbusline

length (see example calculation in the operating instructions).

english

Type 8694

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Burkert 8694 User manual

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