Burkert 8691 REV.2 User manual

Quickstart
English
Type 8691 REV.2
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, 2017
Quickstart 1812/02_EU-EN_00810610 / Original DE

3
1 ABOUT THESE INSTRUCTIONS .......................................... 4
1.1 Denitionofterms ....................................................... 4
1.2 Symbols....................................................................... 4
2 INTENDED USE .................................................................... 5
3 BASIC SAFETY INSTRUCTIONS.......................................... 5
4 GENERAL INFORMATION .................................................... 6
4.1 Contactaddress.......................................................... 6
4.2 Warranty ...................................................................... 6
4.3 InformationontheInternet.......................................... 6
4.4 Trademarks.................................................................. 6
5 PRODUCT DESCRIPTION .................................................... 7
5.1 Structure...................................................................... 7
6 TECHNICAL DATA................................................................. 8
6.1 Conformity................................................................... 8
6.2 Standards .................................................................... 8
6.3 Approvals .................................................................... 8
6.4 Typelabel .................................................................... 8
6.5 Operatingconditions................................................... 8
6.6 Mechanicaldata ........................................................ 10
7 MECHANICAL INSTALLATION ........................................... 11
7.1 Safetyinstructions..................................................... 11
7.2 Installingdeviceswithintegratedpilotairduct
 (21xx,Element).......................................................... 11
7.3 Installingdeviceswithexternalcontrolairduct
 (20xx,Classic) ........................................................... 13
7.4 Aligning(turning)thedeviceandpositionof
 connections............................................................... 17
8 PNEUMATIC INSTALLATION .............................................. 19
8.1 Safetyinstructions..................................................... 19
8.2 Connectingthedevicepneumatically ....................... 20
9 ELECTRICAL INSTALLATION ............................................. 20
9.1 Safetyinstructionsforelectricalinstallation.............. 20
9.2 Connectingthedeviceelectrically,IO-Link................ 21
9.3 Connectingthedeviceelectrically,büS.................... 21
10 START-UP............................................................................ 22
10.1 Teachfunction:Determineendpositionsandsave
 these,REV.2 .............................................................. 22
10.2 SettingwithBürkertCommunicator.......................... 25
10.3 IO-Link....................................................................... 26
10.4 büS ............................................................................ 27
11 OPERATION ........................................................................ 28
11.1 Displaydevicestatus,IO-LinkandbüS .................... 28
11.2 Switchingthedevicemanuallywithpilotvalve......... 32
12 DEINSTALLATION ............................................................... 33
12.1 Safetyinstructionsdeinstallation .............................. 33
12.2 Deinstallation............................................................. 34
13 SPARE PARTS, ACCESSORIES ......................................... 34
13.1 Communicationssoftware......................................... 35
14 TRANSPORTATION, STORAGE, DISPOSAL ...................... 35
Table of contents
Type 8691 REV.2
English

4
About these instructions
Type 8691 REV.2
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.2
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.
English

5
Intended use
Type 8691 REV.2
2 INTENDED USE
The control head Type 8691 REV.2 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areasatriskofexplosion,onlyusedevicesapproved
foruseinthoseareas.Thesedevicesarelabeledwitha
separateExtypelabel.Forsuchuse,notetheinformation
providedontheseparateExtypelabelandtheadditional
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.
English

6
General information
Type 8691 REV.2
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
SalesCenter
Christian-Bürkert-Str.13-17
D-74653Ingelngen
Tel.+49(0)7940-10-91111
Fax+49(0)7940-10-91448
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
English

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Product description
Type 8691 REV.2
5 PRODUCT DESCRIPTION
5.1 Structure
Themodulardesignofthedevicesupportsvariouscongura-
tionsandvariants.
Electricalconnection:
circularplug-inconnector
Exhaustairport,label:3
Pressurelimitingvalve
Pilotairport,label:1
PilotvalveLED
Viewwithouttransparentcap:
Displaydevicestatus:
high-powerLEDs
Fasteningscrew
StatusLED
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.2
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explosion-riskarea.
Seeadditionalexplosion-related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:
Operatingaltitude
ULtype4xRating*
Upto2000mabovesealevel
*Only if cables, plugs and sockets have been connected correctly and in com-
pliance with the exhaust air concept see chapter “Pneumatic installation”.
English

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Technical data
Type 8691 REV.2
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.
6.5.2.1 Electrical data, IO-Link
Protectionclass 3asperDINEN61140(VDE0140-1)
Connection Circularplug-inconnectorM12x1,
4-pin,PortClassA
Operatingvoltage 18–30VDC(accordingto
specication)
Max.currentconsumption135mA@18V(incl.inrushcurrent
pilotvalvefor200ms)
Currentconsumption
inputduringnormal
operation
110mA@18V
(aftercurrentreduction,
pilotvalveafter200ms
and1endposition
reached)
English

10
Technical data
Type 8691 REV.2
6.5.2.2 Electrical data, büS
Protectionclass 3asperDINEN61140(VDE0140-1)
Connection Circularplug-inconnectorM12x1,
5-pin
Operatingvoltage 18–30VDC(accordingto
specication)
Max.currentconsumption120mA@18V(incl.inrushcurrent
pilotvalvefor200ms)
Currentconsumptioninput
duringnormaloperation
95mA@18V
(aftercurrentreduction,
pilotvalveafter200ms
and1endposition
reached)
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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Mechanical installation
Type 8691 REV.2
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
NOTE
Damage to the device and the drive when welding welded
bodies.
Observethefollowingduringinstallationonprocessvalveswith
weldedbody:
▶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.
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Mechanical installation
Type 8691 REV.2
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.
→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
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13
Mechanical installation
Type 8691 REV.2
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.
→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 drive when welding welded
bodies.
Observethefollowingduringinstallationonprocessvalveswith
weldedbody:
▶Observetheinstallationinstructionsfortheoperatingmanual
oftheprocessvalve.
▶Beforeinstallingthedevice,weldtheprocessvalveintothe
pipesystem.
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14
Mechanical installation
Type 8691 REV.2
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
→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
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15
Mechanical installation
Type 8691 REV.2
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.
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.
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16
Mechanical installation
Type 8691 REV.2
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
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.
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17
Mechanical installation
Type 8691 REV.2
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°.
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
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18
Mechanical installation
Type 8691 REV.2
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
counter-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°.
Fasteningscrew(2x)
Pneumaticconnection
Device
Actuator
Fig. 19: Turning the device
→Loosenpneumaticconnectionbetweendeviceandactuator.
→Releasefasteningscrews(hexsocketboltSW2.5).
→Rotatethedeviceintotherequiredposition.
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.
▶Screwinbodycasingtothestop.
▶Screwintransparentcaptothestop.
▶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.
English

19
Pneumatic installation
Type 8691 REV.2
→Onlytightenthefasteningscrewsuntiltheyarehand-tight
(max.torque:1.5Nm).
→Re-establishpneumaticconnectionsbetweendeviceand
actuator.Ifnecessary,uselongerhoses.
8 PNEUMATIC INSTALLATION
8.1 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 uncon-
trolled start-up of the system.
▶Securesystemagainstunintentionalactivation.
▶Ensurethatthesystemdoesnotstartupinanuncontrolled
manner.
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20
Electrical installation
Type 8691 REV.2
8.2 Connecting the device pneumatically
Exhaustairport,label:3
Pilotairport,label:1
Fig. 20: Connecting the device pneumatically
Important information for the problem-free functioning
of the device:
▶Theinstallationmustnotcausebackpressuretobuild
up.
▶Selectahosewithsucientcrosssectionforthe
connection.
▶Designtheexhaustairlineinsuchawaythatnowater
orotherliquidcangetintothedevicethroughthe
exhaustairport.
▶Thepressuresupplymustalwaysbeatleast0.5–1bar
abovethepressurerequiredtobringtheactuatorintoits
endposition.
→Connectthecontrolmediumtothepilotairport(1)
(3–7bar,instrumentair,oil-free,anhydrousanddust-free).
→Connecttheexhaustairlineorasilencertotheexhaustair
port(3).
Exhaust air system:
▶TomaintaintheIP67degreeofprotection,installan
exhaustairlineinthedryarea.
9 ELECTRICAL INSTALLATION
9.1 Safety instructions for electrical
installation
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.
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.
English