Burkert SideControl BASIC User manual

Quickstart
English / Deutsch / Français
Type 8791 REV.2
Positioner SideControl BASIC
Electropneumatic positioner
Elektropneumatischer Positioner
Positionneur électropneumatique
STATUS
COM

We reserve the right to make technical changes without notice.
Technische Änderungen vorbehalten.
Nous nous réservons le droit d’apporter des modifications techniques sans préavis.
© Bürkert Werke GmbH & Co. KG, 2009 - 2022
Operating Instructions 2211/04_EUml_00815311 / Original DE

3
1 ABOUT THESE INSTRUCTIONS .......................................... 4
1.1 Symbols....................................................................... 4
1.2 Denitionofterms ....................................................... 5
2 INTENDED USE .................................................................... 5
3 BASIC SAFETY INSTRUCTIONS.......................................... 6
4 GENERAL NOTES ................................................................. 7
4.1 Contactaddress.......................................................... 7
4.2 Warranty ...................................................................... 7
4.3 InformationontheInternet.......................................... 7
5 PRODUCT DESCRIPTION .................................................... 7
5.1 Structure...................................................................... 7
5.2 Generaldescription ..................................................... 8
6 TECHNICAL DATA................................................................. 8
6.1 Standardsanddirectives............................................. 8
6.2 Operatingconditions................................................... 8
6.3 Mechanicaldata .......................................................... 9
6.4 Typelabel .................................................................... 9
6.5 Electricaldata.............................................................. 9
6.6 Pneumaticdata ......................................................... 10
7 OPERATING ........................................................................ 11
7.1 Operatingstate ........................................................... 11
7.2 Operatinganddisplayelementsofthepositioner..... 12
Type8791 positioner REV.2 8 ATTACHMENT AND ASSEMBLY ........................................... 17
8.1 InstallationofdevicesfortheExarea ....................... 17
8.2 Attachmenttoacontinuousvalvewithlinear
 actuatorsaccordingtoNAMUR ................................ 17
8.3 Attachmenttoacontinuousvalvewith
 rotaryactuator........................................................... 21
8.4 Remoteoperationwithexternalpositionsensor....... 24
9 PNEUMATIC CONNECTION ............................................... 25
9.1 ConnectionofdevicesforExareas .......................... 25
9.2 Safetyinstructions..................................................... 25
9.3 Safetyendpositions.................................................. 26
10 ELECTRICAL CONNECTION .............................................. 28
10.1 ConnectionofdevicesforExareas .......................... 28
10.2 Safetyinstructions..................................................... 28
10.3 Electricalinstallationwithouteldbus
 communication.......................................................... 28
10.4 Electricalinstallation,IO-Link.................................... 33
10.5 Electricalinstallation,büS ......................................... 33
10.6 Connectionassignmentforexternalposition
 sensors(remotevariant)............................................... 34
11 START-UP............................................................................ 34
11.1 Safetyinstructions..................................................... 34
11.2 Deningbasesettings............................................... 34
11.3 SetdevicewithBürkertCommunicator .................... 36
11.4 IO-Link....................................................................... 36
11.5 büS ............................................................................ 37
Type8791 REV.2
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ABOUT THESE INSTRUCTIONS
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:
country.burkert.com
1.1 Symbols
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 or fatal
injuries.
12 ACCESSORIES ................................................................... 38
12.1 Communicationsoftware .......................................... 38
13 TRANSPORT, STORAGE, PACKAGING ............................. 39
Type8791 REV.2
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Intended use
CAUTION!
arns 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the
deviceorsystem.
Indicatesimportantadditionalinformation,tipsand
recommendations.
Referstoinformationintheseinstructionsorinother
documentation.
▶Designatesaninstructiontopreventrisks.
→designatesaprocedurethatmustbecarriedout.
Indicatesaresult
1.2 Denition of terms
Intheseinstructionstheterm“device”denotesthefollowing
devicetypes:positionerType8791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.
Intheseinstructions,theabbreviation“Ex”alwaysrefersto
“potentiallyexplosiveatmosphere”.
2 INTENDED USE
The Positoner Type 8791 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,opera-
ting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.
▶Pulsatingdirectvoltage(rectiedalternatingvoltagewithout
smoothing)mustnotbeusedaspowersupply.
Type8791 REV.2
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Basic safety 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.
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.
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regulati-
onsforelectricalequipment.
To prevent injury, ensure the following:
▶Securedeviceorsystemtopreventunintentionalactivation.
▶Onlytrainedtechniciansmayperforminstallationandmain-
tenance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.
NOTE!
Electrostatic sensitive components or modules.
The device contains electronic components which react sen-
sitively to electrostatic discharge (ESD). Contact with elect-
rostatically 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
minimise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.
Type8791 REV.2
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General notes
4 GENERAL NOTES
4.1 Contact address
Germany
BürkertFluidControlSystems
SalesCentre
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
Thecontactaddressescanbefoundonthebackpagesofthe
printedquickstart.
AlsoontheInternetat:country.burkert.com
4.2 Warranty
ApreconditionforthewarrantyisthattheType8694 positioner
is used as intended in consideration of the specied operating
conditions.
4.3 Information on the Internet
OperatinginstructionsanddatasheetsforType8694canbefound
ontheInternetat:country.burkert.com
5 PRODUCT DESCRIPTION
5.1 Structure
Mechanicalpositionindicator
Displaymodulewith2LEDs
Workingconnection2
(connection:A2)
Supplypressure
connection1.4–7bar
(connection:P)
Workingconnection1
(connection:A1)
Airexhaustconnection/
airexhaustlter
Pressure-reliefvalve
Fig. 1: Structure, positioner Type 8791
Type8791 REV.2
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Technical data
Internalpositionsensor
Axleforpositionsensor
Cablegland
Electronicmodule
Pilotvalvesystem
Fig. 2: Structure, positioner Type 8791
5.2 General description
ThepositionerType8791isadigital,electro-pneumaticposition
controllerforpneumaticallyactuatedcontinuousvalves.Thedevice
incorporatesthemainfunctiongroups
     -Positionsensor
-Electro-pneumaticpilotvalvesystem
-Microprocessorelectronics
Thepositionsensormeasuresthecurrentpositionsofthecon-
tinuousvalve.Themicroprocessorelectronicscontinuously
comparethecurrentposition(actualvalue)withaset-point
positionvaluespeciedviathestandardsignalinputandsup-
pliestheresulttothepositioncontroller.Ifthereisacontrol
dierence,theelectro-pneumaticvalvepilotsystemcorrectsthe
actualpositionaccordingly.
6 TECHNICAL DATA
6.1 Standards and directives
ThedevicecomplieswiththerelevantEUharmonisationlegis-
lation.Inaddition,thedevicealsocomplieswiththerequire-
mentsofthelawsoftheUnitedKingdom.
Theharmonisedstandardsthathavebeenappliedforthecon-
formityassessmentprocedurearelistedinthecurrentversionof
theEUDeclarationofConformity/UKDeclarationofConformity.
6.2 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 IP65/IP671)accordingtoEN60529
(onlyifcables,plugsandsocketshave
beenconnectedcorrectly)
Operatingaltitude  upto2000mabovesealevel
1) If the positioner is used under IP67 conditions, the ventilation lter
(see “Fig. 1”) must be removed and the exhaust air conducted into the
dry area.
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Technical data
6.3 Mechanical data
Dimensions    Seedatasheet
Material
 Housingmaterial  Plastic-coatedaluminium
Otherexternalparts Stainlesssteel(V4A),PC,PE,POM,
PTFE
 Sealingmaterial  EPDM,NBR,FKM
Weight     approx.1.0kg
6.4 Type label
MadeinGermany
CUS
®
879124VDC5W
RemoteIO-LinkREV.2
P=1.4...7barIP65/67
Tamb–10...+60°C
S/N1000
00123456 W17MA
Type Operatingvoltage Nominalpower
Devicevariant,communi-
cation,version
Operatingpressure,
degreeofprotection
Ambienttemperature
CEmarking
ApprovalmarkingCSA
(forCanadaandUSA)
Ordernumber,manu-
facturecode
Barcode
Serialnumber
Fig. 3: Type label (example)
6.5 Electrical data
6.5.1 Electrical data, without eld bus
communication
Protectionclass   IIIinaccordancewithDINEN61140
(VDE0140-1)
Connections    2cableglands(M20x1.5)withscrew-
typeterminals0.14–1.5mm2orcircular
plug-inconnector(M12,8-pinplug)
Operatingvoltage  24VDC±25%,max.residualripple10%
Currentconsumption max.190mA
Powerconsumption  max.3.5W
Inputresistancefor 
set-pointvaluesignal 75Ωin0/4–20mA/12bitresolution
Analogpositionfeedback
max.Burden(load)
forcurrentoutput
0/4–20mA    560Ω
Inductiveproximity
switches     100mAcurrentlimit
Digitalinput    0–5V=logical“0”,10–30V=logical“1”
logicinvertibleinsoftware
(inputcurrent<6mA)
Communications  ConnectiontoPCviaUSBbusinterface
interface     set
Communication
software     BürkertCommunicator
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Technical data
6.5.2 Electrical data, IO-Link
Protectionclass     IIIasperDINEN61140
(VDE0140-1)
Connection      Circularplug-inconnectorM12x
1,5-pin,A-coded
Port Class A
Operatingvoltage    24VDC±25%
          (accordingtospecications)
Currentconsumption   max.150mA
Port Class B
Operatingvoltage 
 Systemsupply(Pin1+3)  24VDC±25%
          (accordingtospecication)
 Actuatorsupply(Pin2+5)2) 24VDC±25%
          (accordingtospecication)
Currentconsumption
  Systemsupply(Pin1+3) max.50mA
  Actuatorsupply(Pin2+5) max.120mA
Totalpowerconsumption  max.3.5W
2) Actuator supply is galvanically isolated from the system supply in
accordance with IEC 60664 and for electrical safety in accordance with
SELV from IEC 61010-2-201
6.5.3 Electrical data, büS
Protectionclass    IIIasperDINEN61140
(VDE0140-1)
Connection     Circularplug-inconnectorM12x1,
5-pin,A-coded
Operatingvoltage   24VDC±25%
(accordingtospecication)
Currentconsumption  max.150mA
Totalpowerconsumption max.3.5W
6.6 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0–+60°C
 Pressurerange 1.4–7bar
Type8791 REV.2
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11
Operating
Airowrate    
Universal     50lN/min(at1.4bar3))foraeration
Airowrate    andventilation
Singleand    150lN/min(at6bar3))foraeration
        anddoubleactingventilation
       Q
Nn = 100 lN/min(accordingto
        denitionwithpressuredropfrom
        7to6barabsolute)
 Lowairowrate   QNn = 7 lN/min(accordingtodefnition
         withSingle-actingpressure 
         dropfrom7to6barabsolute)
Connections     InternalthreadG1/4”
3) Pressure information: overpressure with respect to atmospheric
pressure
7 OPERATING
7.1 Operating state
AUTOMATIC (AUTO)
NormalcontrollermodeisimplementedandmonitoredinAUTO-
MATICoperatingstate.
MANUAL
InMANUALoperatingstatethevalvecanbeopenedandclosed
manuallyviathebuttons.
TooperatetheDIPswitchesandbuttons,makesurethat
thelocalcontrollockisdeactivated/unlocked(factory
setting):withcommunicationsoftwareoreldbus
communication.
DIPswitch4can beusedtoswitchbetween thetwooperating
statesAUTOMATICandMANUAL(seechapter“7.2.2Functionof
theDIPswitches”).
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Operating
7.2 Operating and display elements of the
positioner
TooperatetheDIPswitchesandbuttons,makesurethat
thelocalcontrollockisdeactivated/unlocked(factory
setting):withcommunicationsoftwareoreldbus
communication.
LED1
LED2
DIPSwitches
Button2
Button1
Communicationsinterface
Fig. 4: Description of control elements
Thepositionerfeatures2buttons,4DIPswitchesand2LEDsas
adisplayelement.
7.2.1 Conguration of the buttons
TooperatetheDIPswitchesandbuttons,makesurethat
thelocalcontrollockisdeactivated/unlocked(factory
setting):withcommunicationsoftwareoreldbus
communication.
The configurationof the 2 buttons inside the housing varies
dependingontheoperatingstate(AUTOMATIC/MANUAL).
Thedescriptionoftheoperatingstate(AUTOMATIC/MANUAL)can
befoundinthechapterentitled“7.1Operatingstate”.
Button1
Button2
Fig. 5: Description of the buttons
→TooperatethebuttonsandDIPswitches,unscrewthe4
screwsonthehousingcoverandremovethehousingcover.
Type8791 REV.2
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Operating
MANUALoperatingstate(DIPswitch4settoON):
Button Function
1Aerate(manuallyopen/closetheactuator)4)
2Deaerate(manuallyopen/closetheactuator)4)
1and2
simulta-
neously
Longerthan10s(<30s,LED2ashesat5Hz):
Devicerestart
Longerthan30s(LED2ashesat10Hz):
Resetdevicetofactorysetting
Tab. 1: Conguration of the buttons for MANUAL operating state
AUTOMATICoperatingstate(DIPswitch4settoOFF):
Button Function
1Pressfor5stostarttheX.TUNEfunction
2-
1and2
simulta-
neously
Longerthan10s(<30s,LED2ashesat5Hz):
Devicerestart
Longerthan30s(LED2ashesat10Hz):
Resetdevicetofactorysetting
Tab. 2: Conguration of the buttons for AUTOMATIC operating state
4) Depending on the operating principle of the actuator.
7.2.2 Function of the DIP switches
DIP
switches Function
ON DIP
12 3 4
1ON Reversaloftheeectivedirectionoftheset-point
value(20–4mAcorrespondsto0–100%),
descending(DIR.CMD)
OFF Normaleectivedirectionoftheset-pointvalue
(4–20mAcorrespondsto0–100%),ascending
2ON Sealingfunctionactive.Thevalvecompletely
closesbelow2%5)andopensabove98%ofthe
set-pointvalue(CUTOFF)
OFF Nosealingfunction
3ON Correctioncharacteristicforadjustmentofthe
operatingcharacteristic(CHARACT)5)
OFF Linearcharacteristic
4ON OperatingstatusMANUAL(MANU)
OFF OperatingstatusAUTOMATIC(AUTO)
Tab. 3: DIP switches
5) Can be changed via communications software.
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Operating
Information about the communications software:
The switching position of the DIP switch has priority
over the communications software.
If the values of the sealing function (CUTOFF) or the
correction characteristic (CHARACT) are changed via the
communications software, the corresponding function
must be active (DIP switch set to ON).
The eective direction of the set-point value (DIR.CMD)
can be changed via the DIP switches.
7.2.3 LED display
LED1
LED2
Fig. 6: LED display
7.2.4 Device status display
TheLED1(RGB)showthedevicestatus.
TheusercansetthefollowingLEDmodesforthedisplayof
devicestatusandvalveposition.
•Valvemode
•Valvemodewitherrormessages
•Valvemodewitherrormessagesandwarnings(factorysetting)
•NAMURmode
•LEDo
TheLEDmodeandthecolorsofthevalvepositioncanbeset
withtheBürkertCommunicator.
IO-Link:
TheLEDmodeandthecolorsofthevalvepositioncanbealso
setwithanacyclicparameter(seeparameterlist).
ThedescriptionforsettingtheLEDmodecanbefoundin
thesection"SettingtheLEDmode,devicestatus"inthe
operatingmanual.
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15
Operating
7.2.5 Valve mode + warnings (factory setting)
Displaysinvalvemode+warnings:
•Valveposition:open,half-way,closed
•Devicestatus:failure,functioncheck,outofspecication,
maintenancerequired(accordingtoNAMUR)
Valve position Device status
Status, color Normal operation
Open islityellow6) --
Half-way islitwhite6)7) --
Closed islitgreen6) --
Tab. 4: Valve mode + warnings, normal operation
Ifseveraldevicestatusesexistsimultaneously,thedevicestatus
withthehighestpriorityisdisplayed.
Valve
position
Device status
Failure Function
check
Outof
speci-
cation
Maintenance 
required
Status,
color
Status,
color
Status,
color
Status,
color
Open ashes
red
ashes
orange
ashes
yellow
blinks
blue
alternately
with
yellow6)
Half-way ashes
red
ashes
orange
ashes
yellow
blinks
blue
alternately
with
white6)7)
Closed ashes
red
ashes
orange
ashes
yellow
ashes
blue
alternately
with
green6)
Tab. 5: Valve mode + warnings, device status
Forwarningmessages,theLEDsarebrieyswitchedobetween
thechangeofthecolors.
Forlocalizations,thecolorsareonlyshownmomentarily.
6) Factory setting, selectable colours for valve position: o, white, green,
blue, yellow, orange, red
7) From rmware A.1.6
Type8791 REV.2
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Operating
7.2.6 NAMUR mode
TheLED1showthedevicestatus.
ThedisplayelementschangecolorinaccordancewithNAMUR
NE107.
Ifseveraldevicestatusesexistsimultaneously,thedevicestatus
withthehighestpriorityisdisplayed.Thepriorityisdetermined
bytheseverityofthedeviationfromcontrolledoperation(red
LED=failure=highestpriority).
Status display in accordance with NE 107, edition 2006-06-12
Color Color
code
Status Description
Red 5Outage,error
ormalfunction
Normaloperationisnotpos-
sibleduetoamalfunctionin
thedeviceoronitsperipheral
equipment.
Orange 4Function
check
Workisbeingcarriedoutonthe
device;normaloperationisthe-
reforetemporarilynotpossible
Yellow 3Outof
specication
Ambientconditionsorprocess
conditionsforthedeviceare
outsidethespeciedarea.
Blue 2Maintenance
required
Thedeviceisinnormalope-
ration,althoughafunctionis
brieyrestricted.
→Servicedevice.
Status indicator in line with NE 107, issue 2006-06-12
Colour Colour
code
Status Description
Green 1Diagnostics
active
Deviceisinerror-freeoperation.
Statuschangesarehighlightedin
colour.
Messagesaresentviaanyeldbus
thatmaybeconnected.
Tab. 6: Description of colour
7.2.7 Status LED, green
LED2(green)showsthefollowing.
Colour State Description
Green isnotlit IO-Linkcommunicationinactive8)
ashes IO-Linkcommunicationactive8)
ashesat5Hz Feedbackwhenpressingkey1(start
X.TUNE)orkey1+2(devicerestart)>
5 s
ashesat10Hz Feedbackwhenpressingkeys1+2
(resetdevicetofactorysetting)>30s
Tab. 7: LED 2, green
8) Variant IO-Link only
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17
Attachment and assembly
8 ATTACHMENT AND ASSEMBLY
8.1 Installation of devices for the Ex area
Wheninstallingdevicesinthepotentiallyexplosiveatmosphere,
observethe“AdditionalinformationforuseintheExarea“enc-
losedwiththeEx-devices.
8.2 Attachment to a continuous valve with
linear actuators according to NAMUR
Thevalvepositionistransferredtothepositionsensorinstalled
inthepositionerviaalever(accordingtoNAMUR).
Theattachmentkitforthelinearactuatorscanbe
purchasedfromBürkertasanaccessorybyquotingthe
identicationnumber787215.Theassociatedpartsare
listedinthe“Tab.6:Descriptionofcolour”.
Part no. Quantity Name
1 1 NAMURmountingbracketIEC534
2 1 Hoop
3 2 Clampingpiece
4 1 Driverpin
5 1 Conicalroller
6a 1NAMURleverforstrokerange3–35mm
6b 1 NAMURleverforstrokerange35–130mm
7 2 U-bolt
8 4 HexagonboltDIN933M8x20
9 2 HexagonboltDIN933M8x16
10 6 CirclipDIN127A8
11 6 WasherDIN125B8.4
12 2 WasherDIN125B6.4
13 1 SpringVD-115E0.70x11.3x32.7x3.5
14 1 SpringwasherDIN137A6
15 1 LockingwasherDIN6799-3.2
16 3 CirclipDIN127A6
17 3 HexagonboltDIN933M6x25
18 1 HexagonnutDIN934M6
19 1 SquarenutDIN557M6
21 4 HexagonnutDIN934M8
22 1 Guidewasher6.2x9.9x15x3.5
Tab. 8: Attachment kit for linear actuators
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Attachment and assembly
8.2.1 Installation
WARNING!
Risk of injury from improper installation.
▶Installationmaybecarriedoutbyauthorised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.
Yoke mount procedure:
→Usingthebracket②theclampingpieces③,hexagonbolts
⑰andcirclips⑯attachthehooptotheactuatorspindle.
3
3
17
17
22
16
16
Fig. 7: Attaching the hoop
→Selectshortorlongleveraccordingtothestrokeofthe
actuator(see“Tab.8:Attachmentkitforlinearactuators”,
partno.6a/6b).
→Assemblelever(ifnotpre-assembled)(see“Fig.8”).
1717
16
16
12
12
6
6
19
19
18
18
14
14
12
12
22
22
5
5
4
4
13
13
1515
Fig. 8: Assembling the lever
Type8791 REV.2
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19
Attachment and assembly
Thegapbetweenthedriverpinandtheaxleshouldbethe
sameasthedrivestroke.Thisresultsintheidealangular
rangeoftheleverof60°(see“Fig.9”).
Angular range of the position sensor:
Themaximumangularrangeofthepositionsensoris
180°.
Rotational range of the lever:
Toensurethatthepositionsensoroperatesatagood
resolution,therotationalrangeofthelevermustbe
between30°and120°.
Thescaleprintedontheleverisnotrelevant.
Rotationalrangeof
thelever
Ideal:60°
Minimum:30°
Maximum:120°
120°
Maximumrotational
rangeofthelever
60°
Fig. 9: Rotational range of the lever
→Attachlevertotheaxleofthepositionerandscrewtight(⑰
and⑲
Type8791 REV.2
english

20
Attachment and assembly
8.2.2 Attaching mounting bracket
→Attachmountingbracket①tothebackofthepositioner
withhexagonbolts⑨,circlip⑩andwashers⑪(see“Fig.
10”).
TheselectionoftheM8threadusedonthepositioner
dependsonthesizeoftheactuator.
→Todeterminethecorrectposition,holdthepositionerwith
mountingbracketontheactuator.
  Theconicalrollerontheleverofthepositionsensorinthe
hoopmustbeabletorunfreelyonthedriveovertheentire
strokerange.
At50%stroketheleverpositionshouldbeapproximately
horizontal(seechapter“8.2.3Aligninglevermechanism”).
①
⑨
⑩⑪
M8thread
Fig. 10: Attaching mounting bracket
Attaching the positioner with mounting bracket for actuators
with cast frame:
→Attachmountingbrackettothecastframewithoneormore
hexagonbolts⑧,washers⑪andcirclips⑩(see“Fig.
11”).
810 11
8
10
11
Fig. 11: Attach positioner with mounting bracket; for actuators with cast
frame
Type8791 REV.2
english