Burkert 8694 User manual

8694
Burkert
Brand
Burkert
Model
8694
Type
User manual

Burkert 8694 is an electropneumatic positioner designed for precise control of pneumatic actuators in process valves. It offers automatic adjustment and various safety features, making it suitable for demanding applications in industries such as chemical, pharmaceutical, and food and beverage. With its compact design and user-friendly interface, the Burkert 8694 provides accurate and reliable positioning control in various process automation systems.

Burkert 8694 is an electropneumatic positioner designed for precise control of pneumatic actuators in process valves. It offers automatic adjustment and various safety features, making it suitable for demanding applications in industries such as chemical, pharmaceutical, and food and beverage. With its compact design and user-friendly interface, the Burkert 8694 provides accurate and reliable positioning control in various process automation systems.

Quickstart
English Deutsch Français
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.
© Bürkert Werke GmbH & Co. KG, 2008-2021
Operating Instructions 2107/08_EU-ML_00805912 / Original DE
3
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
4
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
5
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
6
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
7
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
8
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
9
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
CE
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
CE
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
10
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
11
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.
1)
Without change to the settings via the communications software a
linear characteristic is stored in FREE.
english
Type 8694
12
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
english
Type 8694
13
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
14
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.
english
Type 8694
15
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
16
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
17
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.
1
22)
32)
4
5
6
7
Fig. 12: Screw-type terminals
Input signals from the control centre (e.g. PLC)
Terminal Conguration External circuit / signal level
4
5
Set-pointvalue+
Set-pointvalue
GND
4
5
+(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
6
7
Operatingvoltage+
Operatingvoltage
GND
6
7
24VDC±10%
max. residual
ripple10%
Tab. 4: Assignment of screw-type terminals - operating voltage
english
Type 8694
18
Electrical installation
Output signals to the control center (e.g. PLC; for analog
output option only)
Terminal Conguration External circuit / signal level
2
3
Analogue position
feedback+
Analogue position
feedbackGND
+(0/4...20mA)
2
3GND
Tab. 5: Assignment of screw-type terminals - output signals to the
control center - option
Seal
Body casing
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
19
Electrical installation
9.2.2 Electrical installation 24 V DC with circular
plug-in connector
→Connectthepositioneraccordingtothetable.
6
1
7
54
3
2
8
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
1
2
white
brown
Set-pointvalue
+
(0/4...20mA)
Set-pointvalue
GND
1
2
+(0/4...20mA)
GND
5
6
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
3
4
green
yellow
GND
+ 24 V
3
4
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
8
7
red
blue
Analogue
position
feedback+
Analogue
position
feedbackGND
+(0/4...20mA)
8
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
20
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:
NC
Pin1:
Bus +
Pin3:
Bus–
Pin2:
NC
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
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
Page is loading ...
  • Page 1 1
  • Page 2 2
  • Page 3 3
  • Page 4 4
  • Page 5 5
  • Page 6 6
  • Page 7 7
  • Page 8 8
  • Page 9 9
  • Page 10 10
  • Page 11 11
  • Page 12 12
  • Page 13 13
  • Page 14 14
  • Page 15 15
  • Page 16 16
  • Page 17 17
  • Page 18 18
  • Page 19 19
  • Page 20 20
  • Page 21 21
  • Page 22 22
  • Page 23 23
  • Page 24 24
  • Page 25 25
  • Page 26 26
  • Page 27 27
  • Page 28 28
  • Page 29 29
  • Page 30 30

Burkert 8694 User manual

8694
Burkert
Brand
Burkert
Model
8694
Type
User manual

Burkert 8694 is an electropneumatic positioner designed for precise control of pneumatic actuators in process valves. It offers automatic adjustment and various safety features, making it suitable for demanding applications in industries such as chemical, pharmaceutical, and food and beverage. With its compact design and user-friendly interface, the Burkert 8694 provides accurate and reliable positioning control in various process automation systems.

Download PDF
report

Ask a question and I''ll find the answer in the document

Finding information in a document is now easier with AI

Related papers

Other documents