Burkert 8691 REV.3 User manual

Quickstart
English
Type 8691 REV.3
Control Head

We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Sous réserve de modifications techniques.
© Bürkert Werke GmbH & Co. KG, 2022
Quickstart 2207/00_EU-ML_00815429 / Original DE

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1 ABOUT THESE INSTRUCTIONS .......................................... 5
1.1 Denitionofterms ....................................................... 5
1.2 Symbols....................................................................... 5
2 INTENDED USE .................................................................... 6
3 BASIC SAFETY INSTRUCTIONS.......................................... 6
4 GENERAL INFORMATION .................................................... 7
4.1 Contactaddress.......................................................... 7
4.2 Warranty ...................................................................... 7
4.3 InformationontheInternet.......................................... 7
4.4 Trademarks.................................................................. 7
5 PRODUCT DESCRIPTION .................................................... 8
5.1 Structure...................................................................... 8
6 TECHNICAL DATA................................................................. 9
6.1 Conformity................................................................... 9
6.2 Standards .................................................................... 9
6.3 Approvals .................................................................... 9
6.4 Typelabel .................................................................... 9
6.5 Operatingconditions................................................... 9
6.6 Mechanicaldata ........................................................ 12
6.7 Communication ......................................................... 13
7 MECHANICAL INSTALLATION ........................................... 13
7.1 Safetyinstructions..................................................... 13
7.2 Installingdeviceswithintegratedpilotairduct
 (21xx,Element).......................................................... 13
7.3 Installingdeviceswithexternalcontrolairduct
 (20xx,Classic) ........................................................... 16
7.4 Aligning(turning)thedeviceandpositionof
 connections............................................................... 19
7.5 Installationonrotaryactuatorsfromthirdparty
 manufacturers ........................................................... 21
8 PNEUMATIC INSTALLATION .............................................. 22
8.1 Safetyinstructions..................................................... 22
8.2 Connectingthedevicepneumatically ....................... 23
9 ELECTRICAL INSTALLATION ............................................. 23
9.1 Safetyinstructionsforelectricalinstallation.............. 23
9.2 Electricalinstallationwithouteldbus
 communication.......................................................... 24
9.3 Connectingthedeviceelectrically,
 IO-Link,PortClassA................................................. 26
9.4 Connectingthedeviceelectrically,
 IO-Link,PortClassB................................................. 26
9.5 Connectingthedeviceelectrically,büS.................... 27
9.6 Connectingthedeviceelectrically,AS-Interface ...... 27
9.7 Connectingthedeviceelectrically,AS-Interface
 withmulti-polecableandatcableterminal............. 28
10 START-UP............................................................................ 28
10.1 Invertvalvedirection ................................................. 28
10.2 Teachfunction:Determineendpositionsand
 savethese,REV.3...................................................... 30
10.3 SettingthedevicewithBürkertCommunicator ........ 34
10.4 IO-Link....................................................................... 35
10.5 büS ............................................................................ 35
10.6 AS-Interface .............................................................. 36
Table of contents
Type 8691 REV.3
English

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Type 8691 REV.3
11 OPERATING AND DISPLAY ELEMENTS............................ 36
11.1 Operatingstate ........................................................... 37
11.2 Functionsoftheoperatinganddisplayelements...... 37
11.3 Statusindicator ......................................................... 40
11.4 Switchingthedevicemanuallywithpilotvalve......... 42
12 DEINSTALLATION ............................................................... 43
12.1 Safetyinstructionsdeinstallation .............................. 43
12.2 Deinstallation............................................................. 44
13 SPARE PARTS, ACCESSORIES ......................................... 44
13.1 Communicationssoftware......................................... 45
14 TRANSPORTATION, STORAGE, DISPOSAL ...................... 45
English

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About these instructions
Type 8691 REV.3
1 ABOUT THESE INSTRUCTIONS
The Quickstart contains extremely important information on the
device.
→Keeptheseinstructionsreadytohandattheoperationsite.
Important safety information.
▶Carefullyreadtheseinstructions.
▶Observeinparticularthesafetyinstructions,intendeduse
andoperatingconditions.
▶Persons,whoworkonthedevice,mustreadandunderstand
theseinstructions.
TheoperatinginstructionscanbefoundontheInternetat:
www.buerkert.de
1.1 Denition of terms
Intheseinstructionstheterm“device”denotesthefollowing
devicetypes:ControlheadType8691REV.3
Theterm“büS”(Bürkertsystembus)usedinthisinstruction
standsforthecommunicationbusdevelopedbyBürkertand
basedontheCANopenprotocol.
1.2 Symbols
DANGER
Warns of an immediate danger.
▶Failuretoobservethewarningwillresultinafatalorserious
injury.
WARNING
Warns of a potentially dangerous situation.
▶Failuretoobservethewarningmayresultafatalorseriousinjury.
CAUTION
Warns of a possible danger.
▶Failuretoobservethewarningmayresultinmoderateorminor
injuries.
NOTE
Warns of damage to property.
▶Failuretoobservethewarningmayresultindamageto
deviceorsystem.
Indicatesimportantadditionalinformation,tipsand
recommendations.
Referstoinformationintheseoperatinginstructionsorin
otherdocumentation.
▶Designatesaninstructionforriskprevention.
→Designatesaprocedurewhichyoumustcarryout.
Indicatesaresult.
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Intended use
Type 8691 REV.3
2 INTENDED USE
The control head Type 8691 REV.3 is designed to be
mounted on pneumatic actuators of process valves for the
control of media. The permitted uid media are listed in the
technical data.
▶Usethedeviceforitsintendedpurposeonly.Non-intended
useofthedevicemaybedangeroustopeople,nearby
equipmentandtheenvironment.
▶Correcttransportation,correctstorageaswellascorrect
installation,commissioning,operationandmaintenanceare
essentialforreliableandproblem-freeoperation.
▶Whenusingthedevice,observethepermitteddata,operat-
ingconditionsandapplicationconditions.Thisinformation
canbefoundinthecontractualdocuments,theoperating
instructionsandonthetypelabel.
▶Usethedeviceonlyinconjunctionwiththird-partydevices
andcomponentsrecommendedandauthorizedbyBürkert.
▶Donotusethedeviceoutdoorswithoutprotectionfromthe
weather.
▶Inpotentiallyexplosiveatmosphere,onlyusedevices
approvedforuseinthoseareas.Thesedevicesarelabeled
withaseparateExtypelabel.Forsuchuse,notetheinfor-
mationprovidedontheseparateExtypelabelandtheaddi-
tionalexplosion-relatedinformationorseparateexplosion-
relatedoperatinginstructions.
3 BASIC SAFETY INSTRUCTIONS
Thesesafetyinstructionsdonotconsideranycontingenciesorinci-
dentswhichoccurduringinstallation,operationandmaintenance.
Theoperatorisresponsibleforobservingthelocation-specicsafety
regulations,alsowithreferencetothepersonnel.
DANGER
Risk of injury from high pressure and discharge of medium.
▶Beforeworkingonthedeviceorsystem,switchothepres-
sure.Ventordrainlines.
DANGER
Risk of injury from electric shock.
▶Beforeworkingonthedeviceorsystem,switchothepower
supply.Secureagainstreactivation.
▶Observeapplicableaccidentpreventionandsafetyregula-
tionsforelectricalequipment.
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General information
Type 8691 REV.3
To prevent injury, ensure the following:
▶Securedeviceorsystemtopreventunintentionalactivation.
▶Onlytrainedtechniciansmayperforminstallationandmainte-
nancework.
▶Performinstallationandmaintenancewithsuitabletoolsonly.
▶Donotmakeanychangestothedeviceanddonotsubjectit
tomechanicalstress.
▶Operatethedeviceonlyinperfectstateandinconsideration
oftheoperatinginstructions.
▶Observethegeneralrulesoftechnology.
▶Installthedeviceaccordingtotheregulationsapplicablein
therespectivecountry.
▶Donotfeedcorrosiveorammablemediaintothedevice
connections.
▶Donotfeedanyuidsintotheconnectionsofthedevice.
▶Aftertheprocessisinterrupted,restartinacontrolledman-
ner.Observesequence:
1.Connectelectricalorpneumaticpowersupply.
2.Chargethedevicewithmedium.
▶Observeintendeduse.
4 GENERAL INFORMATION
4.1 Contact address
Germany
BürkertFluidControlSystems
Christian-Bürkert-Str.13-17
D-74653Ingelngen
Email:[email protected]
International
Contactaddressescanbefoundonthenalpagesofthe
printedoperatinginstructions.Alsointheinternetat:
www.burkert.com
4.2 Warranty
Thewarrantyisonlyvalidifthedeviceisusedasintendedinaccor-
dancewiththespeciedapplicationconditions.
4.3 Information on the Internet
TheoperatinginstructionsanddatasheetsforBürkertproducts
canbefoundontheInternetat:www.burkert.com
4.4 Trademarks
Thebrandslistedbelowaretrademarksofthecorresponding
companies/associationsororganizations.
Loctite:HenkelLoctiteDeutschlandGmbH
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Product description
Type 8691 REV.3
5 PRODUCT DESCRIPTION
5.1 Structure
Themodulardesignofthedevicesupportsvariouscongura-
tionsandvariants.
PilotLED(yellow)
ASiPWRLED(green)*
ASiFAULTLED(red)*
Statusindicator(RGBLED)
ManualLED(red)
Inv.ValveDir..LED(green)
büSserviceinterface
Key 1
Key 2
Viewwithouttransparentcapandbodycasing:
Electricalconnection
Pressurelimitingvalve
Exhaustairport,label:3
Pilotairport,label:1
*only for AS-Interface variant
Fig. 1: Structure
5.1.1 Structure, integrated pilot air duct (21xx,
Element)
Thestructurewithintegratedpilotairductisoptimizedfor
mountingonprocessvalvesofthe21xxseries(Element).
Transparentcap
Bodycasing
Airintakelter
Fasteningscrew
Basichousing
Fig. 2: Structure, integrated pilot air duct
5.1.2 Structure, external pilot air duct (20xx,
Classic)
Thestructurewithexternalpilotairductisoptimizedformounting
onprocessvalvesofthe20xxseries(Classic).
Transparentcap
Bodycasing
Airintakelter
Fasteningscrew
Basichousing
Pilotairoutlet2-1
Pilotairoutlet2-2
Fig. 3: Structure, external pilot air duct
Sothatthepilotaircanbeexternallyconnectedtotheactuator,
thisstructurehasadierentbasichousing.
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Technical data
Type 8691 REV.3
6 TECHNICAL DATA
6.1 Conformity
ThedeviceconformstotheEUdirectivesaspertheEUDeclaration
ofConformity(ifapplicable).
6.2 Standards
Theappliedstandards,whichareusedtodemonstrateconformity
withtheEUDirectives,arelistedintheEUtypeexaminationcer-
ticateand/ortheEUDeclarationofConformity(ifapplicable).
6.3 Approvals
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thepotentiallyexplosive
atmosphere.SeeadditionalATEXinformation.
TheproductiscULusapproved.Instructionsonoperationinthe
ULareaseechapter“Electricaldata”.
6.4 Type label
6.4.1 Type label standard
8691büS
singleactpilot3,0
Pmax7bar
Tamb-10-+55°CREV.2
Ser.-Nr.001000
00179024
D-74653Ingelfingen
W14UN
Ordernumber,manufacturecode
Operatingvoltageoreldbuscontrol
Max.operatingpressure
Type Controlfunction,pilotvalve
Barcode
Serialnumber,CEmarking
Ambienttemperature,version
Fig. 4: Type label standard (example)
6.4.2 UL type label
8691 -E3-...-0
singleactpilot3,024V
Pmax7bar
Tamb-10-+55°CREV.2
Ser.-Nr.001000
00179024
D-74653Ingelfingen
W14UN
Ordernumber,manufacturecode
FeaturesofthetypecodeapplicabletoULandATEX
Max.operatingpressure
Type Controlfunction,pilotvalve,
supplyvoltagepilotvalve
Barcode
Serialnumber,CEmarking
Ambienttemperature,version
Fig. 5: UL type label (example)
6.4.3 UL additional label
Type4Xenclosure
NECClass2only
Supplyvoltage:24V Supplyvoltagedevice
Circuitwithlimitedpower
Degreeofprotection
Fig. 6: UL additional label (example)
6.5 Operating conditions
Ambienttemperature Seetypelabel
Degreeofprotection
Evaluatedby
manufacturer:
IP65,IP67asperEN60529*
EvaluatedbyUL: ULtype4xRatingindooronly*
Operatingaltitude Upto2000mabovesealevel
Relativeairhumidity max.90%at55°C(noncondensing)
*Only if cables, plugs and sockets have been connected correctly and in com-
pliance with the exhaust air concept see chapter “Pneumatic installation”.
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Technical data
Type 8691 REV.3
6.5.1 Fluidic data
Controlmedium Neutralgases,air
Qualityclassesasper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lowestoperating
temperature
OilcontentClassX Max.25mg/m³
Pressurerange 3–7bar
Temperaturerange -10to+50°C
Pilotvalveairowrate 250 lN/min(foraerationanddeaer-
ation)
(QNn-valueaccordingtodenition
forpressuredropfrom7to6bar
absolute)
Connections InternalthreadG1/8“
6.5.2 Electrical data
NOTE
For variants with cULus approval, please note:
▶OnlyusecircuitsoflimitedpowerasperULNECClass2.
Electrical data without eldbus communication
Protectionclass IIIasperDINEN61140(VDE0140-1)
Connection
Supply 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-pin)
Communication büSserviceinterface
Operatingvoltage 24V ±25%,max.residualripple
10%
Currentconsumption Max.150mA
+currentloadperoutput
Powerconsumption Max. 3.5 W
Output Max.100mAperoutput
Display Max.20mAperillustratedLED
Communicationsoftware BürkertCommunicator
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Technical data
Type 8691 REV.3
Electricaldata,IO-Link
Protectionclass IIIasperDINEN61140(VDE0140-1)
Connection
Supply,IO-Link Circularplug-inconnectorM12x1,
4-pin,PortClassA
Circularplug-inconnectorM12x1,
5-pin,PortClassB
Communication büSserviceinterface
Operatingvoltage
Systemsupply
(Pin1+3)
24V ±25%(accordingto
specication)
onlyforPortClassB:
Actuatorsupply
(Pin2+5)*
24V ±25%(accordingto
specication)
Currentconsumption
Systemsupply
(Pin1+3)
ForPortClassAmax.150mA(only
withinstalledpilotvalves)
ForPortClassBmax.50mA
onlyforPortClassB:
Actuatorsupply
(Pin2+5)
max.100mA
Communicationsoftware BürkertCommunicator
*Actuator supply is galvanically isolated from system supply in accor-
dance with IEC 60664 and for electrical safety in accordance with SELV
from IEC 61010-2-201
Electrical data, büS
Protectionclass IIIasperDINEN61140(VDE0140-1)
Connection Circularplug-inconnectorM12x1,
5-pin
Operatingvoltage
SystemsupplybüS 24V ±25%(accordingto
specication)
Currentconsumption
SystemsupplybüS max.120mA(onlywithinstalledpilot
valves)
Electrical data, AS-Interface
Protectionclass IIIasperDINEN61140(VDE0140-1)
Connection
Supply,AS-Interface Circularplug-inconnectorM12x1,
4-pin
Communication büSserviceinterface
Operatingvoltage
SystemsupplyAS-
Interface
(Pin1+3)
viaAS-Interfacepowersupplyunit
accordingtospecicationwith
29.5V...31.6V
onlyforvariantwith
additionalactuator
supply(AUXPower)(Pin
2+4)*
24V ±10%
Powerconsumption
Outputpilotvalvel approx.0.8Wincl.integrated
watchdogfunction
English

12
Technical data
Type 8691 REV.3
Currentconsumption
Systemsupply
(Pin1+3)
Withoutadditionalactuatorsupplyand
installedpilotvalve
max.110mA@23V
Withadditionalactuatorsupply
(AUXpower)orwithoutpilotvalve
max.60mA@23V
onlywithadditional
actuatorsupply
(AUXPower)(Pin2+4)
max.50mA@24V±10%
Communicationsoftware BürkertCommunicator
* The power supply unit must include a secure disconnection in accor-
dance with IEC 364-4-41 (PELV or SELV)
6.6 Mechanical data
Dimensions Seedatasheet
Bodymaterial
exterior: PPS,PC,VA
Sealmaterial
external:
internal:
EPDM
NBR
Strokerangeofvalve
spindle
2–47mm
6.6.1 Safety end positions
Safetyendpositionsafterfailureoftheelectricalorpneumatic
auxiliarypower:
Actuator
system
Designation Safetyendpositionsafter
failureoftheauxiliarypower
electrical pneumatic
up
down
single-acting
controlfunctionA
down down
up
down
single-acting
controlfunctionB
up up
up
down
double-acting
controlfunctionI
down notdened
Tab. 1: Safety end positions
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13
Mechanical installation
Type 8691 REV.3
6.7 Communication
6.7.1 IO-Link
PortClass AB
IO-Link
specication
V1.1.2
Supply viaIO-Link(M12x1,5-pin,A-coded)
SIO-Mode No
IODD-File seeinternet
VendorID 0x0078, 120
DeviceID seeIODDle
ProductID 8691ClassA 8691ClassB
Transmission
speed
COM3(230.4kbit/s)
PDInputBits 48
PDOutputBits 8
M-sequenceCap. 0x0D
Min.cycletime 5ms
Datastorage Yes
Max.cablelength 20m
7 MECHANICAL INSTALLATION
7.1 Safety instructions
DANGER
Risk of injury from high pressure and discharge of medium.
▶Beforeworkingonthedeviceorsystem,switchothepres-
sure.Ventordrainlines.
WARNING
Risk of injury from improper installation.
▶Onlytrainedtechniciansmayperforminstallations.
▶Performinstallationswithsuitabletoolsonly.
WARNING
Risk of injury due to unintentional activation and uncontrolled
start-up of the system.
▶Securesystemagainstunintentionalactivation.
▶Ensurethatthesystemdoesnotstartupinanuncontrolled
manner.
7.2 Installing devices with integrated pilot
air duct (21xx, Element)
Onlyfordeviceswithoutpreinstalledprocessvalve.
Requiredattachmentkit:ELEMENTType21xx
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14
Mechanical installation
Type 8691 REV.3
NOTE
Damage to the device and the actuator when welding bodies.
Observethefollowingduringinstallationonprocessvalveswith
weldedconnection:
▶Observetheinstallationinstructionsfortheoperatingmanual
oftheprocessvalve.
▶Beforeinstallingthedevice,weldtheprocessvalveintothe
pipesystem.
1. Installing the switch spindle
Transparentcap
Actuator
Pilotairports
(plug-inconnectorswithcolletsor
threadedbushings)
Positionindicator
Fig. 7: Installing the switch spindle (1), integrated pilot air duct
→Unscrewthetransparentcapfromtheactuator.
→Unscrewpositionindicatorfromspindleextension.
→Forvariantwithhoseconnector:removethecollets(white
sleeves)fromthepilotairports.
Spindleextension
Guideelement
Actuator cover
Lipseal
Puck
Switchspindle
Max.5Nm
Max.1Nm
O-ring
Fig. 8: Installing the switch spindle (2), integrated pilot air duct
NOTE
Lip seal can be damaged if incorrectly installed.
Thelipsealispre-mountedintheguideelementandmustbe
"lockedintoposition"intheundercut.
▶Wheninstallingtheswitchspindle,donotdamagethelip
seal.
→Slideswitchspindlethroughtheguideelement.
NOTE
Contamination of the lip seal due to screw locking paint.
▶Donotapplyanyscrewlockingpainttotheswitchspindle.
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15
Mechanical installation
Type 8691 REV.3
→Tosecuretheswitchspindle,applysomescrewlockingpaint
(e.g.Loctite290)inthethreadingofthespindleextensionin
theactuator.
→CheckthattheO-ringisinthecorrectposition.
→Screwguideelementinactuatorcover(tighteningtorque:
max.5Nm).
→Screwswitchspindleontothespindleextension.Aslotis
providedonthetopside(tighteningtorque:max.1Nm).
→Pushpuckontotheswitchspindleandlockintoposition.
2. Attaching the form seal
→Pulltheformsealontotheactuatorcover(smallerdiameter
pointsupwards).
→CheckthattheO-ringsarecorrectlypositionedinthepilotair
ports.
Beforeinstallingthedevice,removethecolletsinthepilot
airports.
Pilotairports
withoutcollets
Formseal
Fig. 9: Attaching the form seal
3. Installing the device
NOTE
Damage or functional outage of the PCB.
▶Ensurethatthepuckliesatintheguiderail.
→Alignthepuckanddevicesothat:
1.Thepuckrestsintheguiderailofthedevice(seeFig.
below).
2.Findtheconnectionpiecesofthedeviceintothepilotair
portsoftheactuator(seesecondFig.below).
Guiderail
Puck
Fig. 10: Aligning the puck
→Pushthedevicewithoutturningitontotheactuatoruntilno
gapisvisibleontheformseal.
NOTE
Damage or malfunction due to ingress of dirt or moisture.
ToobservethedegreeofprotectionIP65orIP67:
▶Tightenfasteningscrewsonlywithatighteningtorqueof
max.1.5Nm.
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16
Mechanical installation
Type 8691 REV.3
→Attachdevicetotheactuatorusingthetwosidefastening
screws.Indoingso,tightenthescrewsonlyhand-tight(max.
torque:1.5Nm).
Connectionpiece
Pilotairports
2xfastening
screw
(max.1.5Nm)
Fig. 11: Installation
7.3 Installing devices with external control
air duct (20xx, Classic)
Onlyfordeviceswithoutpreinstalledprocessvalve.
Requiredattachmentkit:ClassicType20xxforthecorre-
spondingvariant
NOTE
Damage to the device and the actuator when welding bodies.
Observethefollowingduringinstallationonprocessvalveswith
weldedconnection:
▶Observetheinstallationinstructionsfortheoperatingmanual
oftheprocessvalve.
▶Beforeinstallingthedevice,weldtheprocessvalveintothe
pipesystem.
1. Installing switch spindle
Transparentcap
Positionindicator
Actuator
Fig. 12: Installing the switch spindle (1), external pilot air duct
→Unscrewthetransparentcapfromtheactuator.
→Unscrewthepositionindicatorofthespindlewithhexkey.
Guideelement
O-ring
Plasticpart
Puck
Switchspindle
Spindle(actuator)
Max.8Nm
Actuator cover
Max.1Nm
Fig. 13: Installing the switch spindle (2), external pilot air duct
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17
Mechanical installation
Type 8691 REV.3
→PressO-ringdownintotheactuatorcover.
→Manuallyscrewtheswitchspindle(andtheslippedover
guideelement)tothespindleoftheactuatorwiththeplastic
partanddonottighteninitially.
→Screwtheguideelementintothecoveroftheactuatorwitha
facepinwrench*(tighteningtorque:max.8Nm).
→Tighten the switch spindle on the spindle of the actuator. A
slotisprovidedonthetopside(tighteningtorque:max.1Nm).
→Pushpuckontotheswitchspindleandlockintoposition.
2. Installing the device
Coverring
Fig. 14: Attaching cover ring
→Windcoverringontoactuatorcover(onlyforactuatorsize
ø50andø63).
* journal Ø: 3 mm; journal gap: 23.5 mm
NOTE
Damage or functional outage of the PCB.
▶Ensurethatthepuckliesatintheguiderail.
→Alignthepuckandthedevicesothatthepuckrestsinthe
guiderailofthedevice(seefollowinggure).
Guiderail
Puck
Fig. 15: Aligning the puck
→Pressthedeviceallthewaydowntotheactuatorandturnit
intotherequiredposition.
Ensurethatthepneumaticconnectionsofthedeviceand
thoseofthevalveactuatoraresituatedpreferablyverti-
callyoneabovetheother(seeFig.below).Fordierent
positioning,longerhosesmayberequiredthanthosesup-
pliedintheattachmentkit.
English

18
Mechanical installation
Type 8691 REV.3
NOTE
Damage or malfunction due to ingress of dirt or moisture.
ToobservethedegreeofprotectionIP65orIP67:
▶Tightenfasteningscrewsonlywithatighteningtorqueof
max.1.5Nm.
→Attachdevicetotheactuatorusingthetwosidefastening
screws.Indoingso,tightenthescrewsonlyhand-tight(max.
torque:1.5Nm).
3. Pneumatically connecting device and actuator
Pilotairoutlet2-1
Pilotairoutlet2-2
Upperpilotairport
Lowerpilotairport
Example∅80, CFA
Fasteningscrew
Fig. 16: Pneumatically connecting device and actuator
→Screwplug-inhoseconnectorontodeviceandactuator.
→Usingthehosessuppliedintheattachmentkit,makethe
pneumaticconnectionbetweenthedeviceandactuatorwith
thefollowingtable.
NOTE
Damage or malfunction due to ingress of dirt or moisture.
ToobservethedegreeofprotectionIP65orIP67:
▶OnlyforCFAandCFB:Connectthepilotairoutletwhichis
notrequiredtothefreepilotairportoftheactuatororseal
withaplug.
Control function A (CFA)
Processvalveclosedinrestingposition(byspringforce)
Device Pilotairoutlet 2221or 2221
Actuator Upperpilotairport
Lowerpilotairport
Control function B (CFB)
Processvalveopeninrestingposition(byspringforce)
Device Pilotairoutlet 2221or 2221
Actuator Upperpilotairport
Lowerpilotairport
Tab. 2: Pneumatically connecting device and actuator CFA and CFB
English

19
Mechanical installation
Type 8691 REV.3
Control function I (CFI)
Processvalveclosedinrestingposition
Device Pilotairoutlet 2221
Actuator Upperpilotairport
Lowerpilotairport
Control function I (CFI)
Processvalveopeninrestingposition
Device Pilotairoutlet 2221
Actuator Upperpilotairport
Lowerpilotairport
Tab. 3: Pneumatically connecting device and actuator CFI
"Inrestposition"meansthatthepilotvalvesofthedevice
areisolatedandnotactuated.
Iftheambientairishumid,ahosecanbeconnected
betweenpilotairoutlet22ofthedeviceandtheuncon-
nectedpilotairportoftheactuatorforcontrolfunctionA
andcontrolfunctionB.Asaresult,thespringchamberof
theactuatorissuppliedwithdryairfromthepilotairoutlet
ofthedevice.
7.4 Aligning (turning) the device and
position of connections
Devices with integrated pilot air duct:
Alignmentofdeviceandpositionofconnectionsisonly
possiblewith2100,2101and2106processvalves.
Thedeviceandpositionoftheconnectionscanbealigned
by:
-turningtheactuator
Devices with external pilot air duct:
Thedeviceandpositionoftheconnectionscanbealigned
by:
-turningtheactuator(onlytypes2000,2002,2006and
2012)
-turningthedevice
7.4.1 Turning the actuator, devices with hexnut
The following description only applies for devices with
hexnut on the actuator.
Fordeviceswithoutahexnutontheactuator:refertothe
section"Turningtheactuator,deviceswithouthexnut"in
theoperatinginstructions.
Thepositionoftheconnectionscanbeinnitelyadjustedby
rotatingtheactuatorthrough360°.
English

20
Mechanical installation
Type 8691 REV.3
Actuator
Actuator
Hexnut
Hexnut Bodyconnection
Bodyconnection
Valvebody
Valvebody
Fig. 17: Turning the actuator (1)
→Clampthevalvebodyintoaholdingdevice(onlyforvalves
notyetinstalled).
NOTE
Damage to the seat seal or the seat contour.
▶Whenturningtheactuator,thevalvemustbeopen.
→ForcontrolfunctionAandI*:
Applycompressedairtopilotairport1.
→Switchingthedevicemanuallywithpilotvalve(seechapter).
→Usingasuitableopen-endwrench,counterthewrenchaton
thetting.
→Placeasuitableopen-endwrenchonthehexagonalboltof
theactuator.
*if variant exists
DANGER
Risk of injury from high pressure and discharge of medium.
Ifthedirectionofrotationiswrong,thebodyconnectionmay
becomedetached.
▶Onlyturntheactuatoristheprescribeddirection.
→Movetheactuatortotherequiredpositionbyturning it anti-
clockwise(viewedfrombelow).
Fig. 18: Turning the actuator (2)
7.4.2 Turning the device
Only for devices with external pilot air duct (20xx,
Classic).
Thepositionoftheconnectionscanbealignedbyrotatingthe
devicecontinuouslythrough360°.
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