Regada ST 1-Ex Manual

Explosion-proofelectriclinearthrust
actuatorsST1-Ex
INSTALLATION,SERVICEAND
MAINTENANCEINSTRUCTIONS
74072407

1026

TESTCERTIFICATE
COMPLETENESS CERTIFICATE
INSTALLATIONCERTIFICATE
EXPLOSION-PROOFELECTRICLINEAR THRUSTACTUATORST 1-Ex
Type number411............................................. Powersupply..........................................V .............Hz
Serialnumber................................................. Set switch-off thrust......................................................N
Production year............................................... Operating speed.................................................mm/min
Wiring diagram................................................ Operating stroke........................................................mm
....................................................................... Transmitter.......................................................................
Warrantyperiod ..................................months Inputoperating signal......................................................
Serialnumberofelectricmotor...........................................................................................................................
Serialnumberoftransmitter...............................................................................................................................
Serialnumberofcontroller..................................................................................................................................
Explosion-proofversion: c Ex db ebIIB T6Gb and Ex tb IIIC T85°C Db
Finalreport No.:FTZÚ 03 ATEX0273X
Designand type testsarein accordance with the followingstandards:
EN 60 079-0–Electrical apparatusfor explosivegasatmospheres–Part0: General requirement
EN 60 079-1–Electrical apparatusfor explosivegasatmospheres–Part1: Flameproof enclosures“d”
EN 60 079-7–ExplosiveatmospheresPart 7: Equipment protection byincreased safety“e”
EN/IEC 60 079-31: Explosiveatmospheres–Part 31: Equipment dust inition protectionbyenclosure„t“.
Testsmade in accordance with TP74 0905 00
Testsmade by....................................................................................................................................................
Date ................................................................ Signature and stamp......................................................
Used valve.........................................................................................................................................................
Assembled by:Firm...........................................................................................................................................
Name...........................................................................................................................................
Warrantyperiod ................................months
Date .............................................................. Signature and stamp.......................................................
Location ............................................................................................................................................................
Installedby: Firm..............................................................................................................................................
Name..............................................................................................................................................
Warrantyperiod.................................months
Date .............................................................. Signature and stamp.......................................................
II 2G II 2D

Please read these instructionscarefullybeforemounting and operating the actuator!
Contents
1. Generaldata......................................................................................................................................................2
1.1 Purposeand applications............................................................................................................................2
1.2 Safetyinstructions.......................................................................................................................................2
1.3 Productinfluence to environment................................................................................................................2
1.4 Data specified on electricactuator..............................................................................................................3
1.5 Terminology.................................................................................................................................................4
1.6 Instructionsforstuff training........................................................................................................................5
1.7 Warning forsafetyuse................................................................................................................................5
1.8 Warrantyconditions.....................................................................................................................................5
1.9 Under-guarantee and after-guaranteeservice............................................................................................5
1.10 Operation conditions...................................................................................................................................6
1.11 Packing, transport, storing and unpacking..................................................................................................7
1.12 Appreciation ofthe productand packing.....................................................................................................8
2. Description, function and specifications............................................................................................................8
2.1 Description and function..............................................................................................................................8
2.2 Basicspecifications.....................................................................................................................................9
3. Installationand dismantlingofactuator...........................................................................................................12
3.1 Mechanicalconnection..............................................................................................................................12
3.2 Electricconnectionand checking offunction............................................................................................13
3.3 Dismantling................................................................................................................................................15
4. Adjusting ofactuator........................................................................................................................................15
4.1 Gearunit adjustment.................................................................................................................................16
4.2 Adjustment ofposition-indicating unit (Fig.4)............................................................................................16
4.3 Adjustment ofresistant transmitter(Fig. 5)...............................................................................................16
4.4 Adjustment ofthe Electronic Position Transmitter(EPV)-the ResistiveTransmitter(Potentiometer) with
the ConverterPTK1............................................................................................................................................17
4.5 Adjustment ofthe Capacitive TransmitterCPT1/A(Fig.8)........................................................................18
4.6 Adjustment ofposition controller(Fig. 9)...................................................................................................19
5. Service, maintenanceand troubleshooting.....................................................................................................21
5.1 Service.......................................................................................................................................................21
5.2 Maintenance -extent and periodicity........................................................................................................21
5.3 Maintenanceto assureinexplosiveness...................................................................................................22
5.4 Troubleshooting.........................................................................................................................................23
6. Accessories.....................................................................................................................................................23
7. Enclosures.......................................................................................................................................................24
7.1 Wiring diagrams.........................................................................................................................................24
7.2 Dimensionaldrawings...............................................................................................................................28
7.3 List ofcontractualafter-salesservice centres...........................................................................................29
Edition: 03/2019
The rightofchangesreserved! Ev. Nr.:74 0724 07

2 ST1-Ex
The Installation, ServiceandMaintenance Instructionsare drawn upaccording to requirementsof ECExecutive
Nr. 89/392/EEC "Uniform requirementsformachinesand devicesfrom the point of viewof safetyand health
care", to save lifeand health of users and to avoidmaterialdamagesand exposure environment to danger.
1.Generaldata
1.1Purpose andapplications
Explosion-proofelectriclinearactuators (hereinafterEA)types ST1-Ex resp.EA withcontrollertypes
arehigh-powered electric-mechanicalproducts,designedfordirectinstallationsontocontrolleddevices
(regulatingbodies-valves,etc.).EAof ST1-Ex typesareprovided forremote controlofclosingbodies,andEA
with controllerforautomotivecontrolofregulating bodiesinbothdirectionsoftheirmovement. Theycanbe
equipped withmeansofmeasuring andcontroloftechnologicalprocesseswhereanunifiedanaloguedirect
current orvoltagesignalis an information bearerontheirinputand/oroutput.Theycan be usedinheating,
energy,gas,air-conditioning and othertechnologicalsystems,whichtheyaresuitablefor,regardingtheir
features.Theyareconnected with controlleddeviceswith aflange accordingto, EN 15714-2 orusing pillars
and flanges.
1. Donot count with tight closing performedby control signalsof EAST1-Exwith controller.
2. Itis forbiddento use EA as a lifting mechanism!
3. Switching of actuatorbya semiconductorswitches haveto be consultedwith producer.
1.2Safetyinstructions
Product characteristics fromrisk point of view
EA typeST1-Exisbased oncharacteristics statedinpart„Operatingconditions“ and fromthe riskpoint of
viewthereservedtechnicaldevice with highrisk, whileitiselectricdeviceofAgroup (see RegulationofMPSvR
SR no. 508/2009 Statute, §2 and Attachment no. l, III. part, section A– valid forterritoryofSR).
EA are according to EN 61010-1:2010 dedicated to installation category(overload category)II.
In orderto demonstrate thecompliancewiththe requirementsofthe EuropeanCouncildirectiveon machinery
2006/42/EC,European Parliament andCouncil Directive 2014/34/EÚ on equipment and protectivesystems
intendedforuseinpotentiallyexplosiveenvironment (designated asDirectiveATEX100a),directiveofthe
Council2014/35/EUon LVDand Council Directive2014/30/EUonEMC, the electricactuators aresubjectto
certification byauthorized certification facilities.
The productmeetsthe essentialsafetyrequirementsaccordingtoEN 60204-1and isincompliance with
EN 55011/A1withinvalidedition.
1.3Productinfluencetoenvironment
Electromagneticcompatibility(EMC): the productcomplieswiththe requirementsoftheDirective2014/30/EU
ofthe European Parliamentandofthe Councilon theapproximation ofthelawsthe MemberStatesrelating to
the electromagneticcompatibilityandwiththerequirementsofstandardsaswellEN/IEC61000-6-4+A1, EN/IEC
61000-6-2, EN/IEC61000-3-2 and EN/IEC 61000-3-3withinvalid edition.
Vibrations causedbythe product: productinfluenceisnegligible.
Noise producedbytheproduct: The maximumallowablenoicelevel(A)ofthe productmeasured inaplaceof
operation is80dB(A).
Electricactuators are made inexplosion-proofversion cExdb eb II BT6Gb and
Extb IIIC T85°C Db, pursuant to:
EN/IEC 60079-0: Explosiveatmospheres– Part 0 : Equipment generalrequirements– Generalrequirements
EN/IEC 60079-1: Explosiveatmospheres– Part 1 : Equipment protection byflameproofenclosures“d”
EN/IEC 60079-7: Explosive atmospheres-Part7: Equipment protection byincreased safety"e".
EN/IEC 60079-31:Explosive atmospheres– Part 31: Equipment dust initionprotectionbyenclosure „t“,within
validedition.
ElectricpartsEA areproposed:
- as devices ofthe group II for othersthreatened areas (excluding mines)
- ofthe category 2 withdemanding requirementsforsafety
- for use max. inzone 1
- for atmospheres G (gases, vaporsor mists) or D (combustibleconductivedusts)
- topressurerange from0.8to1.1bar.
II 2G II 2D

ST1-Ex 3
Designversion is:
- flameproofenclosures“d“, increased safety “e” orleveldustignitionprotection byenclosure “tb”
-with explosionprotectiongroup IIB or IIIC
-and temperature class T6 (max. permissible surface temperature +85°C.
Zonesforinstallation ofexplosion-proofelectricactuators and conditionsforequipment installation are defined in
the following standards:
IEC/ EN60079-10: Electricalapparatusforexplosivegasatmospheres
Part 10: Classification ofhazardousareas
IEC/ EN60079-14: Electricalapparatusforexplosivegasatmospheres
Part 14: Electricalinstallationsinhazardousareas
Non-electricpartsofelectric actuators aredesigned, engineered, manufactured, tested and identifiedin
compliancewith the requirementsforsafetyofmachineryaccording to the following standards:
EN 1127-1: Explosive atmospheres– Explosion prevention and protection
Part 1: Basicconceptsand methodology
EN 13463-1: Non –electricalequipment potentiallyexplosive atmospheres
Part 1: Basicmethod and requirements
EN 13463-5: Non –electricalequipment potentiallyexplosive atmospheres
Part 5: Protection byconstructionalsafety“c”
Equipment identification consistsofthe following characters:
Ex -electricequipment complieswith standard EN/IEC 60 079-0.and related standardsforthe corresponding
typesofexplosion protection.
d -identification ofthe explosion protectiontype -"flameproofenclosure"accordingto EN/IEC 60079-1.
e-identification ofthe explosion protection type – „increased safety"according to EN/IEC 60 079-7.
tb -identification ofdust ignition protection byenclosure„t“according toEN/IEC 60079-31.
II orIII -identification ofthe class ofnon-explosive electricdeviceaccording tothestandard EN/IEC60 079-0.
B or C-identification ofthe sub-class II orIII ofnon-explosiveelectricdevicesaccording to the standardEN/IEC
60 079-0.
T6 orT85°C -identificationofthe temperature class ofnon-explosive electricdevice class II orIII accordingto
the EN/IEC 60 079-0.
Gb -(EPL Gb)-identification oftheequipment designated forexplosivegaseousatmospheres, with "high"level
ofprotection, whichisnotasource ofinitiation in standard operation orincase ofexpected failures.
Db - (EPLDb) - identificationofthe equipment designated forexplosive dustatmospheres, having a “high”
levelofprotection, which isnot asource o ignitioninnormaloperation orduring expected malfuctions.
1.4Dataspecifiedon electricactuator
NameplateforWarningplate:
Nameplate containsthe basicdata concerning identification, performance and electricity:indication ofproducer,
type, serialnumber,max. load thrust and switching-off thrust, operatingspeed, protection code, operating stroke,
supplyvoltage and current.
Warninglabel:
-with identification ofthe waitingtime and requirementsforstrength ofscrews.

4 ST1-Ex
Non-explosive label: identifying the manufacturer, certificate number, typeidentification, versionidentification,
serialnumberand version forambient temperature:from-25°C upto +55°Corfrom-50°C upto +40°Cor–from
50°Cup to+55°C orfrom-60°Cup to+40°C
Graphicsymbolson electricactuator
The graphicsymbolsused on electricactuator substitutethe text messages. Someofthemareinaccordance
withENISO 7010, ISO 7000 and IEC60417withinvalidedition.
Dangerous voltage (EN ISO 7010-W012)
Strokeofthe electriclinear actuator
Switching-offthrust
Manualcontrol(0096 ISO 7000)
Protection terminal(5019 IEC 60417)
1.5Terminology
Potentially explosive environment -an environment where explosive atmosphere can occur.
Explosivegasatmosphere -amixtureofflammablesubstances(informofgases,vapors ormist)with air
underatmosphericconditions,whichupon initiationenablesthe propagation ofthe combustion inunconsumed
mixture.
Maximum surfacetemperature -maximumtemperatureoccurringduring operationinmostadverseconditions
(but within accepted tolerance limits) at anypart ofthe surface ofthe electricdevice,
that couldresultinignitionofthe surrounding atmosphere.
Enclosure -allwalls,doors,covers,cableglands,shafts,rods,drawbars,etc.,thatcontributetothelevelof
protection against explosion orto the levelofprotection (IP)oftheelectricdevice.
Flameproof enclosure"d"-typeofprotection whereinthepartscapableofignitinganexplosiveatmosphere
arelocated withinthe enclosure, incaseofexplosion ofan explosivemixturewithinthe enclosure,such
enclosurewillwithstand the pressureoftheexplosion andprevent the propagationofexplosionto the
surrounding atmosphere.
Increasedsafety“e” -type ofprotectionappliedtoelectricalapparatusinwhichadditionalmeasuresare
appliedsoastogiveincreased securityagainstthepossibilityofexcessivetemperaturesand ofthe occurrence
ofarcs and sparksin normalserviceorunderspecified abnormalconditions.
Dustignition protection byenclosure“t” –type ofprotection forexplosivedustatmosphereswhereelectrical
equipment isprovided withan enclosureproviding dustingress protection and ameansto limitsurface
temperatures.
Combustible dust -finelydivided solid particles,500 morless innominalsize,which maybe suspended
in air, maysettle out ofthe atmosphere undertheirown weight, mayburnorglowin air, and mayform
explosivemixtureswith airat atmosphericpressure and normaltemperatures´.
Conductive dust-combustible dustwith electricalresistivityequalto orless than 103Ω· m.
Combustible flyings -solid particles,including fibres,greaterthan 500 min nominalsizewhich may
be suspended in airand could settle out ofthe atmosphere undertheirown weight.

ST1-Ex 5
!
1.6Instructionsfor stuff training
Requirementsforspecializedskillsof personsperformingassembly, operation and maintenance
Electric connection can beperformed onlybyan acquaintedperson, i.e. an electricalengineerwith
professionaleducationofelectricalengineering atan apprenticeschooloratechnicalschool
(secondary,complete secondary oruniversityeducation)and whosequalificationwasverifiedbyan
educationalfacilityauthorised toverifyprofessionalqualification.
Servicecan beperformed onlybyworkers professionallyqualified and trainedbythe produceror
contracted service centre!
1.7Warning for safetyuse
Productsareassignedforoperationinenvironment consistofgas,steamand vapours,withtemperaturerange
from–25°Cupto+55°C; and specialversionforultralowtemperaturesfrom–50°Cupto+40°C,
from-50°Cupto +55°Corfrom-60°Cupto+40°C, topressurerangefrom0.8 to 1.1bar.EAcanbe
installed atareasspecified max. aszone 1.
It matters about followingproductsare designated forenviroment:
-group II
-the category 2
-fortype ofthe atmospheres G or D
-subgroup B
-temperature class T6.
1. Productsaredesigned accordingto standardsforelectricalandnon-electricaldevicesassignedforareas
with dangerofexplosion:
-forelectricparts:EN/IEC 60079-0, EN/IEC 60079-1 and EN/IEC 60079-7 and EN/IEC60079-31.
-fornon-electricparts:EN 1127-1 ,EN13463-1and EN 13463-5.
2. The maximumsurface temperatureofthe actuatorforgiven group T6 isnot allowed toexceed +85°C.
3. Ifthe actuatorisplacedondevicewhichregulate mediumwith highertemperaturethan +55°C, protectthe
actuatorbyadditionalconstruction inorderto maintainambient temperaturemax.+55°Cand alsoto stop
temperature transmitting through junction component!
4. Cableglandsblindsareassigned onlyfortransportand storageperiod, i.e. forperiod tillthe actuatoris
builded into operation with dangerofexplosion, than blindsmust be replacebyconnecting cable.
5. Ifanyofthecable glandsare not used to installacable, it must be replacedwith certified Explug ofthe
approved type,secured with Loctite 243 adhesive.
6. Temperature on entrycablesismax. 90°C.
7. ATTENTION:THE COVER CANBEREMOVED 30 MIN.AFTERPOWER SUPPLYIS
SWITCHED OFF!USE SCREWSWITHATENSILE STRENGTH 800 N/mm2.
8. WARNING– POTENTIALELECTROSTATIC CHARGINGHAZARD.
During operation ofEA it must be prevented anyprocess with intensive formation ofelectrostaticcharge
strongerthan manualfriction ofhissurface.
Productprotection
EAdoesnothaveown short-circuitprotection, thereforetheremustbe included suitableprotective device
intothesupplypower(circuit breaker, orfuse), which servesatthesame time asmain switch.
Typeof equipment fromaconnection point of view: The equipment isdesignedforpermanent
connection.
1.8Warrantyconditions
The supplierisresponsibleforcompleteness ofthe deliveryand guaranteesthesespecificationsofthe
productwhichare stated inthe Contract.
The supplierisnotresponsibleforanydeterioration ofparameters caused bythe customerduring storage,
unauthorised installation orimproperoperation.
1.9Under-guarantee andafter-guarantee service
Ourcustomersareprovidedwithprofessionalserviceofourfirmininstallation,operation, service, maintenance,
revision andhelpin troubleshooting forall ourproducts.
Trained professionalswait foryou also in ourcontracted servicecentres.
!
!

6 ST1-Ex
Under-guarantee serviceis performed bytheservicedepartment ofthe productionplant, orbya
contracted service centreaccording to a written claim.
In case ofoccurring ofanyfault pleaseletusknowitand state:
•type code
•serialnumber
•ambient parameters (temperature, humidity...)
•dutycycle including frequencyofswitching
•type ofswitching-off (position orthrust)
•set switching-off thrust
•type offault -description ofclaimed fault
•it isrecommended to placealso Installationcertificate.
It isrecommended to have after-guarantee service performed bythe servicedepartment ofthe
production plant, orbya contracted service centre.
1.10Operation conditions
1.10.1Productlocation and operation position
EA can beinstalled and operated atsheltered areasofindustrialplantswithout temperatureand humidity
regulation, protectedagainstclimate effects(e.g. directsunshine),also atareas with explosion dangerof
inflammable gasesand steam,specifiedas zone2 and 1,i.e. atareaswhere is possibilityof originating
explosive vapouratmosphere withinstandardoperation (according to EN/IEC60079-10).
Installation and operationof EA ispossiblein anyposition. Verticalposition ofoutput partaxisandwith
the controlpart above the valveisusual.
Warning:
Actuatorinstalledontheopen placemustbe protected againstadirectclimate effectsbyshelter.
Actuatorinstalledintheplacewith relativehumidityover80%andon theopenplaceundershelter
have tohavepermanentlyconnected spaceheaterwithout thermalswitch.
1.10.2Working enviroment
According tovalidstandardIEC60 721-2-1, therearedeliveredtheseversionsof electricactuators:
1)Version „temperate“ forclimate temperate.
2)Version „cold“- forclimate cold.
(Inaccordance withIEC 60 364-1, IEC60 364-5-51and IEC60364-5-55 withinvalidedition)
EA have to resist externalinfluencesand workfora certainty:
In conditionsofexternalenvironment marked as:
•warmmild to veryhot drywith temperatures-25°Cto +55°C.....................................................................AA 7*
•cold, warmmild to hot drywith temperatures-50°Cto +40°C....................................................................AA 8*
•with relativehumidity10÷100%,includingcondensation with maximumcontent 0,028kgofwater
in 1kg ofdryairattemperature 27°C, with temperatures-25°C to+55°C..................................................AB 7*
•with relativehumidity15÷100%,including condensationwith maximumcontent 0,036kg ofwaterin 1kg ofdry
airat temperature 33°Cwith possibilityofaerialcollisionsactivity, with temperatures
-50°C to +40°..............................................................................................................................................AB 8*
•with elevation up to2000 m, with barometricpressure rangefrom86 kPa up to108 kPa........................AC 1*
•with shallowdive– (product inprotection IPx7)....................................................................................AD 7*
•withstrongdustiness –with apossibilityofinfluencesofinflammable, non-conductedand non-explosive
dust; the middle layerofdust;the dustdrop more than350 but notmore than 1000 mg/m2perday(products
with protectionenclosure ofIP6x) ............................................................................................................AE 6*
•with occasionalorcasualappearance ofcorroding andpolluting substances(occasionalorcasual
exposeto corrodingorpollute chemicalsubstancesduring producing orusing ofthese
substances);atplaceswhereishandled with small quantityofchemicalproductsand thesecan
accidentallyget in contact with an electricdevice.......................................................................................AF3*
•with a possibilityofinfluencesofmechanicalstress:
•mediumsinusoidvibrationswithfrequencyin range from10 up to 150 Hz,with shift amplitude of0,15
mm forf<fp and acceleration amplitude 9.8 m/s2forf>fp (transitionfrequencyfp isfrom57 up to 62Hz)AH 2*
•mediumimpacts, shocks and vibrations..............................................................................................AG2*
•with seriousdangerofplantsand mouldgrowing.......................................................................................AK 2*

ST1-Ex 7
•with seriousdangerofanimaloccurrence (insects, birds, small animals)..................................................AL 2*
•with detrimentalinfluenceof radiation:
•ofstraycurrent with intensityofmagneticfield (direct oralternate,ofmainsfrequency)up to 400A.m-1 .....
..................................................................................................................................................................AM2-2*
•ofsun radiation with intensity>500 and < 700W/m2.......................................................................... AN2*
•with effectsofmediumseismicactivitywith acceleration >300Gal< 600 Gal..........................................AP 3*
•with indirectendangerbystorm..................................................................................................................AQ2*
•with quickairmovement and strong wind.......................................................................................AR 3 , AS3*
•stand on a conductive bottom)...................................................................................................................BC 3*
•with a dangerofinflammable gasesand vapours explosion -forExofversion....................................BE 3N2*
•firerisks...............................................................................................................................................BE 2*
*Marking inaccordance with IEC60364-1, IEC 60 364-5-51 and IEC 60 364-5-55 within valid edition
1.10.3Powersupplyand dutycycle
Powersupply:
electricmotor..............................................230 VAC ±10%, 3x400 VAC±10%, resp. 24 VAC/DC ±10%
control.............................................................................................230 VAC±10%,resp.24 VAC ±10%
potentiometertransmitter........................................................................................max. PxR VDC/AC
electronicpositionaltransmitter(EPV)without powersupply......................15up to 30VDC, or24 VDC
capacitive transmitterwithout powersupply...................................................................18 upto 28 VDC
powersupplyfrequency..........................................................................................50 Hz,or60*Hz±2 %
*Note: At frequency of60 Hzclosingtime isreducedby1.2 timest.
Dutycycle -according to EN/IEC 60034-1, 8:
EAST1-Ex aredesigned for remotecontrol:
•short-time operation S2-10min
•intermitted operation S4-25%, max. 90 cyclesperhour
EAST1-Ex with controller aredesigned for automotive regulation:
•intermitted operation S4-25%, 90 up to 1200 cyclesperhour
Note:
1. Dutycycle consist of load type, load factorand switching rate.
2. EA ST1-Exispossibleconnectwithan externalcontrollerand usethisEA ascontrolled EA,forthisEA
standsdutycycleand powerparameters asfortype ST1-Exwith built-incontroller.ForEA withcontrollerwe
do not suggest operatingspeed63 and80 mm permin.
1.11Packing, transport,storing and unpacking
Plochybezpovrchovejúpravysú predzabalenímošetrené konzervačnýmprípravkomMOGUL LV2-3.
Preservation isnot necessaryifthe following storage conditionsare compliedwith:
• Storage temperature: -10 to +50 °C
• Relativeairhumiditymax.80 %
•Electricactuators andtheiraccessoriesmustbe stored indry,wellventilatedcoveredspaces,
protectedagainstimpurities,dust, soilhumidity(byplacement to racks,oron palettes),chemicals
and foreign interventions
• There shallbeno corrosive gasespresent in the storage areas
The of EA ST1-Ex are deliveredinsolidpackagesguaranteeing resistancein accordancewith
EN/IEC 60 654.
Package isa box.Productsinboxesispossible toloadon the pallets(pallet isreturnable). On the outerside of
the package isstated:
•manufacturerlabel,
•name and typeofproduct,
•numberofpieces,
•otherdata – noticesand stickers.
The forwarderisobliged to securepacked products,loadedontransportationmeans,againstself-motion;
ifopen transportation meansareused, to securetheirprotectionagainstatmosphericprecipitationsand
splashing water.Displacement and securing ofproductsintransportation meansmustprovidetheirstable
position,exclude the possibilityoftheirinter-collision and theircollision with the vehiclewalls.
Transportation canbeexecuted byheatless and non hermeticspacesoftransportationvehicleswith influences
within the range:

8 ST1-Ex
-temperature: -25°C upto +70°C (a strange version –45 °C upto +45 °C)
-humidity:5 up to100 %,with max. watercontent0.028 kg/kg ofdryair
-barometricpressure 86 up to 108 kPa
Afterreceiving EAcheckwhetherduring transportorstoragetheactuatorwas not damaged.
Comparealsowhethertheparameterson theirnameplatesareinaccordance with accompanying
documentation orthe Contract. Ifany discrepancyorfaultoccurinformimmediatelyyoursupplier.
If the actuators and accessoriesarenot immediatelyinstalled, theyhaveto be stored indry,well-
ventilated sheltered rooms,protected against dirt, dust, soilhumidity(with placing onto shelvesoronto pallets),
chemicalimpactsand encroachment, at ambient temperaturefrom-10°Cup to+50°Cand relativehumidity
max. 80%.
Itis not allowedto storeEAintheopenairorinareasnot protectedagainstdirectimpactof
climate!
If anyscratchon the surfacefinishing occurs removeitimmediately-you protectthiswayactuators
against damaging with corrosion.
1.12 Appreciation oftheproductand packing
The productand itspackage aremade of recyclingmaterials.Do not throwthesinglepartsof the package
and ofthe productaftertheirlifebut sortthemaccording to instructionsincorresponding executivesor
regulationsofenvironment protection, andallow theirrecycling.
The productanditspacking arenot asourceofanyenvironment pollution orcontamination and do not
contain anydangerouswaste.
2.Description, function and specifications
2.1Description and function
The explosion-proof ST1-Ex,ST1-Exwith controller electricactuators consistofthreepartsdiffering in
theirfunction. The gearpartisplaced inthe bottom and covered with aboard(2)(Fig.3)wherethe controlpartis
located. Afterremovingofthe uppercoveronlythecontrolpartisvisible.The terminalboard(6))(Fig.3)is
locatedseparately,inthe terminalboardcasewithbushings(12))(Fig.3)connected withthe controlpartusing
the 12-corebushing(16))(Fig.3).The actuatorlinearmovement andconnectionto thevalveisprovidedbythe
gearpart fastenedon the gearpartoutput.
The poweroutputofthe reversibleasynchronousmotorisled through thetwo-stage spurgearingwith a
brake, the planet gearingwith Wolformtearteeth to the motion screwwheretheoutput screwismoving along.
Forvariousspeed valuesvariousnumbers ofgearwheelsinthe input gearing areused. In the planet gearthe
movement fromthe wormgearing used forthe manualcontrol(11))(Fig.3)themovement neededforthrust
switching (4))(Fig.3)isderived. The switching thrust iscontinuouslyadjustable.
In thecountershaftthepinionsaremade ofmetal,wheelsareofplastics,what resultsinreducedactuator
noisiness.The splined shaftconnected with the controlcentralwheelleadsfromthe crown gear.The central
wheelisplaced in the board bearing removable afterloosening the fixing screws.
The boardiscompact and consistsof:
•the position-indication unit,
•the gearunit,
•the transmitterunit,
•the electricmotorwith a capacitor,
•the spaceheaterwith the thermalswitch.
The position-indicationand transmitterunitsaredrivenwiththe gearunit.The position-indicationunit(3)
(Fig. 3)consistsofthecamsystem(24, 25, 26 and27)(Fig.4).The camsarelocked centrallywiththenuts(23)
whilethe camsthemselvesareadjustableusing friction washers.The cam systemallowsadjustingof permanent
indication from0up to100%oftheoperationstroke. Remote position watchingorcontrolisprovided bythe
position transmitter(potentiometer) (5)(Fig.3).The enlarged partofthe lowercaseisdesignedforthe terminal
board case.With removing ofthe terminalboardcase the composed terminalboard (6)isvisible.
Additional accessories:
Manual control:made up bya hand wheelwith awormgearing.
The ST1-Ex with controller version isequipped with an electronic controller.

ST1-Ex 9
2.2Basicspecifications
BasicEAspecifications:
switching-off thrust[N], operatingspeed [mm/min], operating stroke [mm],max.load thrust(validforST1-Ex
with controller) [N] and electricmotorparameters are given in Table 1.
Table1: Basicspecifications Electric motor3)
Nominal
Type
number
Operating
speed
±10[%]1)
Operating
stroke
Max. load
thrust
(ST1-Ex
with
controller)
Switching-off
thrust
±10 [%]
Weight
Power supply
nominalvoltage
power speed current Capacitor
capacity
[mm/min] [mm] [N] [N] [kg] [V] ±10% [W] [1/min] [A] [ F/V]
1
2
3
5
6
7
8
9
10
11
12
13
8
16 7000 8000-10000
32 5000 6000-7500
632) 2560 3000-3700
10 7000 8000-10000
20 6000 6900-8600
40 4000 4600-5800
802) 2000 2300-2900
11,0 – 15,0
Single-phase
230 15 2750 0,18 2,2/400
8
16 7000 8000-10000
32 5000 6000-7500
632) 2560 3000-3700
10 7000 8000-10000
20 6000 6900-8600
40 4000 4600-5800
802) 2000 2300-2900
11,0 – 15,0
Three-phase
3x400 15 2680 0,10 -
8
16 7000 8000-10000
32 5000 6000-7500
632) 2560 3000-3700
10 7000 8000-10000
20 6000 6900-8600
40 4000 4600-5800
ST 1-Ex,typenumber 411
802)
10; 12,5;16; 20; 25; 32; 40; 50; 64; 80
2000 2300-2900
11,0 – 15,0
Single
-
phase/
direct current
24 AC/DC
32 3000 1,80 -
1) Anomalyofoperatingspeed: -15% at temperaturesunder -10°C
±10% at230V (or3x400 V) AC
-50 upto+30% in dependenceon loadat 24V AC/DC.
2) Validfor versionwithoutcontroller.
3) Switchingelementsfor different type of load (alsofor EA) definesstandardEN/IEC 60947-4-1.
Additionaltechnicaldata:
EAprotection enclosure:.....................................................................................................IP67 (EN/IEC60529)
Mechanical ruggedness:
sinusoidalvibrations: with frequencyinrange 10to 150 Hz,
with shift amplitude of0,15mm forf <fp,
with acceleration amplitudeof19,6 m/s2forf >fp,
(transition frequencyfp =57to 62 Hz)
drop resistance:...............................................................................................300 dropswith acceleration 2 m.s-2
seismicresistance:...........................................................................amplitudeofthe shockoff6on Richterscale
Self-locking: ........................................................................................................................with mechanicalbrake
Electric motorprotection: .......................................................................................................with thermalswitch
EAbraking: ..........................................................................................................................with mechanicalbrake
Output part backlash:..........................................................................<0,5 mmat load of5%-ofmaximumthrust
Switching-off
Voltage.......................................................................................max. 250 V; 50/60 Hz; 2 A,or250VDC; 0,1 A
Hysteresisofposition switches.................................................................................................................max. 3%
Switching-off thrust isadjusted to maximumvalue withtolerance ±10 %ifnot agreed else.
Operation stroke isadjusted at produceraccording to specified value.

10 ST1-Ex
Space heater(E1)
Spaceheater-supplyvoltage: .................................corresponding with motorsupplyvoltage (max. 250 VAC)
Spaceheaterpoweroutput:.....................................................................................................max. 10 W/ 55 °C
Thermal switchof space heater(F2)
Supplyvoltage: ................................corresponding with motorsupplyvoltage (max. 250VAC)
Switching-off temperature:................+30°C ±3K
Switching-on temperature:................+20°C ±4K
Positiontransmitters
Resistivepositiontransmitter
Resistance (single B1) .....................................................................................................................100; 2 000Ω
(double B2) ..........................................................................................................2x100Ω, 2x2000 Ω
Operating life oftransmitter ...........................................................................................................1.106cycles
Loadcapacity ................................................................................0,5 Wdo 40 °C, (0W/125°C)
Maximumcurrent ofslidingcontact.......................................................................................................max.35 mA
Maximumsupplyvoltage............................................................................................................. PxRVDC/AC
Potentiometerlinearityerror......................................................................................................................±2,5 [%]1)
Potentiometerhysteresis ...............................................................................................................max. 2,5 [%]1)
Potentiometervaluesat limit positions:
for ST1-Ex: “O“ (open)...... ≥93%, ”Z“ (closed).......≤5%
for ST1-Ex with controller: “O“ (open)...... ≥85%, ”Z“ (closed).......≤5%
Capacitive(B3):non-contact,life108cycles
2-wire connection with powersupplyorwithout powersupply
The current signal 4 ÷20 mA (DC)isacquired fromthe capacitivetransmittersuppliedfromthe internaloran
externalvoltagesupplysource. The electronics ofthe transmitterisprotected againsteventualwrong polarity
and current overloading. The entiretransmitterisgalvanicinsulated soseveraltransmitters can be connected to
one externalvoltage source.
Powersupplyvoltage (with powersupply)................................................................................................24 VDC
Powersupplyvoltage (without powersupply)..................................................................................18 to28 VDC
Ripplevoltage.........................................................................................................................................max. 5%
Maxpowerinput............................................................................................................................................0,6 W
Loadresistance0 to 500 Ω
Loadresistancecan be single side grounded.
Influenceofresistance on outputcurrent...........................................................................................0,02%/100Ω
Influenceofvoltage on output current.....................................................................................................0,02%/1V
Temperature dependency ..........................................................................................................0.5%/10°C
Electronicpositionaltransmitter(EPV)-converterR/I(B3)
a)2-wire version - without built-in powersupply
Current signal................................................................................................................................4 ÷20 mA(DC)
Powersupplyvoltage.......................................................................................................................15 to30 VDC
Loadresistance............................................................................................................max. RL=(Un-9V)/0,02A[Ω]
.......................................................................................................................(Un-powersupplyvoltage [V])
Output signalvaluesat limit positions: “O“................20 mA(clamps81; 82)
“Z“..................4 mA(clamps81; 82)
Valuestolerance ofoutput signalofEPV
“Z“ ............+0,2 mA
“O“ ............ ±0,1 mA
b) 3-wire version - withoutbuilt-in powersupply,orwith built-inpowersupply
Current signal................................................................................................................................0 ÷20 mA(DC)
Current signal................................................................................................................................4 ÷20 mA(DC)
Current signal.................................................................................................................................0 ÷5 mA(DC)
Powersupplyvoltage (at version without built-in powersupply)...................................................24 VDC±1,5%
Loadresistance......................................................................................................................................max. 3 kΩ
Output signalvaluesat limit positions: “O“...................... 20 mA, or5 mA(clamps81; 82)
“Z“........................ 0 mA, or4mA(clamps81; 82)
Valuestolerance ofoutput signalofEPV and capacitive transmitter
“Z“ .............+0,2 mA
“O“............. ±0,1 mA

ST1-Ex 11
EPVand capacitive transmitterlinearityerror...........................................................................................±1,5[%]1)
EPVand capacitive transmitterhysteresis..........................................................................................max. 1,5 [%]1)
1)from rated valueof transmitterreferred to output values
Electronicposition controller(N)
Controllersoftware equipment:
A)Function and parameters
programmable functions:
•..with functionalbuttonsSW1, SW2 and LED diodesD1, D4 directlyplaced on controller
•..with computerorterminalequippedwith correspondingprogramme, using RS232 interface.
programmable parameters:
•..controlsignal
•..response toSYS-TESTsignal
•..mirroring (ascending/descending characteristics)
•..insensitiveness
•..EA limit positions(onlywith computerand ZP2 programme)
•..wayofregulation
B) Operation states of controller
Errormessage fromerrormemory: (using LED diodesand RS232 and personalcomputer)
•..controlsignalmissing orfaulty
•..input value ofcurrent controlsignalunder3.5 mA
•..existenceofSYS-TESTsignal
•..activityofswitches
•..failure offeedbackposition transmitter
Statistic data: (using RS232 and personalcomputer)
•..numberofcontrolleroperation hours
•..frequencyofrelayswitching indirection "opening"
•..frequencyofrelayswitching indirection "closing"
Supplyvoltage: ...................terminal61 (L1)-1(N).....................230 VAC, ±10%
Frequency: ..........................50/60 Hz±2%
Input control signals -analogue: ...........0 -20 mA
.............................................................4 -20 mA
.............................................................0 -10 V
(Actuatoropensat rising ofcontrolsignal.)
Controllerlinearity: .......................................0.5 %
Controllerinsensitiveness: .........................1 -10%(adjustable)
Feedback(position transmitter): .................resistive 100 up to10,000 Ω
current 4 up to20 mA
Poweroutputs: .............2xrelay5A/380V
Digital outputs: ............4xLED (supply,error, adjustment, "opening","closing"-with two-colourLED)
Errorstatus: ...................................controlswitch 24 V, 2W-POR
Reaction aterrorsituation: ...........transmittererror-errormessage LED
Control signal missing: .................errormessage LED
SYSmode: ......................................errormessage LED
Adjusters: .......................................communicationconnector
2xcalibrating and adjustingbutton
Manual control: with handwheel;rotating clockwisely(counterclockwisely)EAoutput partismoving indirection
"Z"-closed ("O"-open)

12 ST1-Ex
Mechanical connection: Basicand connecting dimensionsare given in dimensionaldrawings.
Electric connection
with terminal board (X):-max. 12 terminals– connectingcable size from0,5 to 2,5 mm2
-2 cable bushings– cablediameterfrom9 to 13 mm
with protection terminal: -externaland internal,mutuallyconnected and marked with protectionearthling
mark.
Electricconnection-according to wiring diagrams.
3.Installation and dismantling ofactuator
Abidebysafetymeasures!
Note:
Check againifplacement ofEA replyto chapter"Operationconditions".Incasethat operation conditions
are different from recommended, consultationwith producerisneeded.
Before starting of mounting the EA onto the valve:
•Checkagainwhetherthe EAwasnot damaged during storing.
•Checkwhetherthe adjusted operation stroke andconnecting dimensionsofthe actuator(see the nameplate)
are incompliancewith thevalve parameters.
•In case ofinconsonance, performadjusting according to the part"Adjustment“.
3.1Mechanical connection
EA isbythe produceradjusted toparameters accordingtothenameplate, withconnectingdimensions
accordingto the corresponding dimensionaldrawingand put it to a mid-position.
Before installationputthe hand wheelon.
3.1.1Mechanical connection withconnection dimensionsaccordingtoISO (DIN)
Standards
•Properlydefat contact surfacesofthe EAconnecting flangeand the valve.
•Checkthe nameplatesto assure that actuatorandvalve strokesare thesame.
•Set the actuator(A)and the valve (B)to the position”closed“.
•Put the actuator(A)onto the valve (B)to have the actuatorshaft (3)leant onto the valve coupling (8).
•Turnthe valveoutput shaft(5)to connectthe stemwith the valveoutput shafthaving the actuatorflange(2)
sitting on the valve flange (7).
•Tighten the screws(4)withthe cross systemto connect the actuatorflange (2)with thevalve flange (7).
•CheckconnectiondimensionsinaccordancewithFig. 1.
•Turnthe valveoutput shaft(5)byone revolutionand lockitwiththe nut (6)(tocreate pre-stressingagainst
the valve seat).
A... electricactuator
1 ... handwheel
2 ... actuatorflange
3 ... shaft
4 ... screw
B... valve
5 ... valve output shaft
6 ... locking nut
7 ... valve flange
8 ... valve coupling

ST1-Ex 13
3.1.2Mechanical connection for pillarversionswithflanges ofA, B, Cand Dtypes
•Set the actuator(A)and the valve (B)to the position”closed“.
•Loosenand unscrewtwo screws(5)ontheactuatorshaft (3)and disconnect thecouplingclamping parts(8)
•Screwthe coupling nut(9)onto the valveoutput shaft(6)(max.28mm)to havean allowancebetweenthe
couplingnut(9)and the actuatorshaft (3)afterthe actuatorissat on.
•Placetheactuator(A)ontothe valve(B)andfixthe actuatorslightlywiththe screws(4a),orwith thecentral
nut (4)(according to shape ofconnecting flange ofEA)in the wayyou be ableto move it.
•Byturning hand wheel(1)moveend shaftEA(3)towardthread coupling(8)screwed onto valveoutput shaft
(6)(orunscrew thread coupling)
•Put the clamping partsofthe thread coupling (8)on, and tightentheboth coupling screws(5)to havethe
couplingnutable to rotate
•Tighten the screws(4a),orcentralnut (4)with thecross systemto fasten the actuator(2)and valve(7)
flanges.
•Checkthe connection diameters inaccordancewith
the Fig. 2.
•Unscrewthe coupling nut (9)byone morerevolution
(to createthepre-stress againstthevalveseat),and
tighten the coupling screws(5)firmly
Notes:
1. Minimum mechanicalruggedness of screwsis8G.
2. If adjustment of theposition-signalling unitorthe
transmitterintheproductionplantdonotcorrespond
with the EAconnected thisway, adjust the units.
•In theendofmechanicalconnectioncheck
correctness ofthe connection with thevalvewith
rotating the handwheel.
A.....electric actuator
1......handwheel
2......actuatorflange
3......shaft
4......centralnut
4a.....screw
5......screw
B ... valve
6......valve output shaft
7......valve flange
8......coupling
3.2Electricconnection and checking offunction
Followupwith connecting the EAwithmainsormastersystem.
1. Followinstructionsin thepart "Requirementsforprofessionalqualification"!
2. Whilelaying electricalline abidebythe instructionsforheavy current installations.
3. Cablesto terminalboardsorconnectors leadthrough screw bushings.
4. BeforeinitiationESintooperationinternalandexternalprotectionterminalsareneededtobe
connected.
5. Feeding cablesareto befixed to the solidconstruction atmost150 mm from the bushings.
!
Fig.2

14 ST1-Ex
Connecting withthemastersystem:
The EA canbe controlledwith:
•a built-inpositioncontroller
•an externalposition controller
1. If the EAiscontrolled with an externalcontrollerusing unified signalfrom atwo-wiretransmitter
(capacitiveorresistivewith aconverterintwo-wireconnection),itisneeded to arrange connecting of
the two-wiretransmitterloop to electricalearth of the successive externalcontroller!
2. Connection can be performed onlyin one point, inanypart ofloop out of theEA.
3. Electronics of the two-wiretransmitters isgalvanicallyinsulatedthat iswhyitcan serveasan
externalsourceforsupplyingof severaltransmitters(theirnumberdependsoncurrent whichthe
source can supply).
4. Do not connectanddisconnectliveconnectors)!
Connecting toterminalboard
•Checkwhetherthetype ofcurrent, supplyvoltage andfrequencycorrespond withdata on the nameplate of
electricmotor.
•Remove the uppercover.
•In caseofthesingle-phaseversion the phasel1and the leadNconnectto thecorrespondingterminals.In
caseofthethree-phaseversion connectthephasecablesL1,L2andL3 to U,V,W(terminals2,3,4),the
protection cablesto the marked placesofinternalandexternalprotection terminals.
•Connect thecontrolcablesaccordingto the wiring diagramplaced into the internalside ofthe cover.
•Put the coveron and tighten ituniformlycrosswisely.
•Tighten the cablebushingsfirmlyto assure the protection enclosure rate.
Notes:
1. The EAaredelivered with bushings,whichincaseoftightputtingon theleadsassureprotectionenclosure
up toIP67.Forrequired protection enclosureitisneededto useringsaccordingtotheactualcable
diameter.
2. Whilefixing the cable itisneededto count withallowedbend radiustoavoiddamaging ordeformation of the
sealing element ofthe bushing. The leadsaretobe fixed with the solidconstruction atmost150 mm from
the bushings.
3. It isrecommended to use screened cablesto connectremotetransmitters.
4. The faceareasof the controlpartcoverhavetobebeforere-mounting clean, coated withagreasewithout
anyacid(e.g. vaseline)andsealing not damaged to avoidjoint corrosion.
5. Reversationof the EAissure, iftheperiodbetweenswitching-offandswitching-on ofpowersupplyforthe
reversed movementof the output part isminimally50 ms.
6. Delayafterswitching-off,i.e. time since a reaction of switchestillthe motorisdead can be maximally20 ms.
7. It isrecommended to havethe corresponding directionprotectionswitched-offdirectlywiththe
corresponding position orthrust switches.
Abidebyinstructionsofvalve producers, whetherswitching-off inlimitpositionsis to be
realisedwith position orthrustswitches!
Afterelectricconnectionperformcheckingoffunction:
•Put the valve manuallyto a mid-position.
•Connect theEAelectricallyforthe chosen direction ofmovement and watch the outputpart movement.
•Ifitdoesnot correspond changethe orderoffeeding phases(validfor3x400Vversion),orchangeleadsof
the feedingphase to the corresponding terminals(valid for230Vversion).
•Checkthe controlunitswitchesconnection with switchingconsequentlythe contactsofthe corresponding
switcheswithpressingthe controlelementsat running oftheEA(at properconnection)to thechosen
direction. Incaseofproperconnection theEAstopsorindicatestheadjusted position accordingto switching
ofthe chosenswitch.Ifanyofthefunctionsisfaultcheckconnecting ofthe switchesaccordingto wiring
diagrams.
!
!

ST1-Ex 15
In the ST1-Exversion withthe built-in electronic controller itisneededto perform autocalibration
forassuringoptimalfunctioning.
The procedure is asfollows
Press thebutton SW1 forabout 2sec(i.e.tillthe D3 diodeisgoton)toset thecontrollertothe
autocalibration mode. During thisprocess the controllerchecksthe feedbacktransmitterand the senseof
turning, putstheEAtothepositionsopenandclosed, measuresinertiamass inthedirections"opening"and
"closing",and loadsthe adjusted parameters into theEEPROMmemory.Incasethatduring the initialisation
process an erroroccurs (e.g. inconnection oradjustment)the initialisation process will beinterruptedandthe
controllerwith the D4 diodereportsabout thetypeofthe error.Elseafterfinishing theinitialisationprocessthe
controllerisput intothe regulation mode.Ifneededto changeadjusted parameters ofthe controllerfollow
instructionsgiven in the part Adjusting ofactuator.
3.3Dismantling
Before dismantling itisrequiredto disconnecttheEA from mains!
Donot connectand disconnectliveconnectors!
•Disconnectthe EAfrommains.
•Disconnectthe leadsfromthe EA terminalboardsand loosen thecablesfrombushings.Pulloutthe
connectors in case ofthe connectorversion.
•Loosenthefixing screwsofthe EA flange and couplingscrewsand disconnecttheEA fromthe valve.
•WhilesendingtheEAtoberepairedput itinto apackage solidenoughtoavoiddamagesoftheEAduring
transportation.
4.Adjusting ofactuator
Abidebysafetymeasures!
Aftermechanicalconnection, electrical
connection and checkingofconnection and
function startsettingandadjustment of the
device.The adjustment canbeperformed at a
mechanicallyand electricallyconnected EA.This
partdescribesadjustment ofEAtospecified
parameters incasethat anyunitofEAisreset.
Layingofadjusters ofthe controlboardisshown
on Fig. 3
!
!
!
Fig.3

16 ST1-Ex
4.1Gearunitadjustment
In theproduction plantswitching-off thrustforboth the "opening"direction(thethrustswitch S1)aswellas
forthe "closing"direction (the thrustswitchS2)areadjusted tospecifiedvalue±10%.Ifnot agreedelsetheyare
adjusted to maximumvalue.
Adjustment and settingofthe gearunitto othervalueswithout anytestingdeviceforthrustmeasuring is
not possible.
4.2Adjustmentofposition-indicating unit(Fig.4)
The EAareintheproduction plant adjustedtoafixedangle(accordingtothe specification),givenonthe
nameplate. While setting, adjusting andresetting followthese steps(Fig.4):
•In the version with a transmitterput the transmitterout ofmesh.
•Loosenthenuts(23)fixing camsstill havingtheBellevillespring creating axialpressure.
•Put the EAto the position "open"and turn the cam(29)clockwiselyuntilthe switch S3(25)switches.
•Change setting ofthe EAbytheangle, wheretheposition"open"isto beindicatedandturnthe cam(31)
clockwiselyuntilthe switchS5 (27)switches.
•Put theEA to the position "closed"and turnthe cam (28)
counterclockwiselyuntilthe switch S4 (24)switches.
•Turn the EAbackbytheangle, where theposition"closed"is
to be indicated and turnthe cam(30)counterclockwiselyuntil
the switch S6 (26)switches.
•Having the EAadjustedlockthe camswith the centralmilled
nut and counter-nut (23).
Ifnot agreedelsethesignallingcamsareset nexttothe
limitpositions.The signalpossibilityisavailablealongthe whole
operation angle in both directions,i.e. 100%.
4.3Adjustmentofresistanttransmitter(Fig. 5)
The resistant transmitter isinthe EA ST1-Ex usedto function asaremote position indicator;inthe EA
ST1-Exwith controller to function asafeedbackinthe position controllerand ifneededalsointhepositionof
aremote resistant positionindicator.Beforethe resistant transmitteradjustment the position switcheshavetobe
adjusted. Adjustment consistsin setting ofthe resistance in the defined limit position oftheEA.
Notes:
In casethat the EA isnot used inthewholestrokerange given onthe nameplate, the resistanceinthe limit
position "open"isproportionallyreduced.
In the EA ST1-Exwith controller 2000Ωresistanttransmitters areused. In
the othercasesifthe resistant branchislead to the terminalboardthe
resistance ofthetransmitters isaccording to the customer'sspecification.
To adjust the transmitterfollowthese steps:
•Loosen the fixing screws(9)ofthe transmitterholderand pushthe
transmitterout ofmesh.
•Connectameterforresistancemeasuring to theterminals71 and 73of
the EA ST1-Ex terminalboard, orto the terminals6and 7ofthe EA ST1-
Ex with controller terminalboard.
•Put theactuatorto theposition "closed“(withthe handwheel,orwith the
localelectricposition controluntilthe corresponding position switchS2or
S4 switches).
•Rotatethetransmittershaftuntilresistanceof ≤5%ofthe nominal
transmitterresistancecanbe read onthemeterincaseofEA ST1-Ex,or
3up to 5%ofthe nominaltransmitterresistanceincaseofEA ST1-Exwith controller, orincaseofEA ST
1-Ex withEPV,i.e. with theresistant transmitterwith the converterPTK1
•In the positionput the transmitterto meshwith the drivewheeland fixthe fixingscrewson the transmitter
holder.
•Disconnectthe meterfromthe terminalboard.
Fig.4
Fig.5

ST1-Ex 17
4.4AdjustmentoftheElectronicPosition Transmitter(EPV)-theResistive
Transmitter(Potentiometer)withtheConverterPTK1
1.1.1.EPV –the2-wireversion (Fig. 6)
The positiontransmitterwiththeconverterPTK1isinthe plant adjustedtohavethe output currentsignal
on the terminals81-82(thewiring diagram74 080700)asfollows:
•in the position „open“.............................. 20 mA
•in the position „closed“.....................................4 mA
Ifthe transmitterrequiresa newadjustment followthese steps:
Adjustment oftheEPV inEA ST 1-Ex:
•Put the actuatorto the position „closed“and switch thepowersupplyoff.
•Adjustthe resistivetransmitteraccording to thepreviouschapter.The resistanceisto be metered on the
terminalsX-Y(Fig. 6).The used transmitterresistanceis
100 Ω.
•Switchtheconverter′spowersupplyon.
•Turnthe adjustingtrimmerZERO(Fig. 6)to adjusttheoutput
current signalrate measured on the terminals81-82 to 4mA.
•Set the actuatorto the position „open“.
•Turnthe adjusting trimmerGAIN (Fig. 6)to adjusttheoutput
current signalrate measured on the terminals81-82 to 20mA.
•Checkthe output signalofthe converterintheboth limit
positions,and repeat the procedureifneeded..
Note:
The output signalof 4-20mAcan be adjusted atthe range from75 upto 100%ofthe rated strokestated onthe
actuator′snameplate. At valuesless than 75%the value 20mAisreduced proportionally.
Adjustment oftheEPV inEA ST1-Exwithcontroller
•Disconnectthe circuitwithremoving a jumperon the terminals81and 82.
•Disconnectthe controlsignalfromthe terminals86/87and 88.
•Set theactuatorto the direction ”OPENING“ or”CLOSING“ with thehand wheel,orwithconnecting power
to the terminals1 and20 forthe direction ”OPENING„ or1 and 24 forthe direction”CLOSING”.
•Set the actuatorto the position “CLOSING“ and switchthe converteroff on the terminals1 a 61.
•Adjustthe resistivetransmitteraccordingto thepreviouschapter.The resistanceistobemetered onthe
terminalsX-Y(Fig. 6).
•Connect powersupplyto the terminals1 and 61.
•Turnthe adjusting trimmerZERO(Fig. 6)to adjusttheoutput current signalrate measured on the terminals
81-82 to 4mA.
•Set the actuatorto the position „open“.
•Turnthe adjustingtrimmerGAIN (Fig. 6)to adjusttheoutput currentsignalratemeasured on theterminals
81-82 to 20mA.
•Checkthe output signalofthe converterinthe both limit positions, and repeat theprocedureifneeded.
•Havingthetransmitteradjusted put the jumperagainontheterminals81and82 incasethat the output
signalwont be used (thecircuit throughthe terminals81 and 82shouldbe closed).
•Connect thecontrolsignalto theterminals86/87 and 88.
1.2.1.EPV –3-wireversion (Fig. 7)
The resistivetransmitterwith the converterisintheplant adjusted tohavethe output current signal
metered on theterminals81-82 (thewiringdiagramZ258 -without anypowersupply,orZ261 -with apower
supply)asfollows:
•in the position „open“..............................................20 mAor5 mA
•in the position „closed“...........................................0 mAor4 mA
accordingto the specified version ofthe converter.
Ifthe transmitterrequiresa newadjustment followthese steps:
•Put the actuatorto the position ”closed“and switch thepowersupplyoff.
Fig.6

18 ST1-Ex
•Adjustthe resistivetransmitteraccordingto thepreviouschapter.The resistanceistobemetered onthe
terminalsX-Y(Fig. 7).The used transmitterresistanceis 2000Ωor100 Ω.
•Switchtheconverter′spowersupplyon.
•Turnthe adjusting trimmerZERO(Fig. 7)to adjusttheoutput current signalrate measured on the terminals
81-82 to 0mAor4mA.
•Set the actuatorto the position „open“.
•Turnthe adjusting trimmerGAIN (Fig.7)to adjustthe output
current signalrate measured on the terminals81-82 to20mA
or5 mA..
•Checkthe output signalofthe converterintheboth limit
positions,and repeat the procedureifneeded.
Note:
The output signalof(0-20mA,4-20mAor0-5mA-according to the specification)can be adjusted at therange
from 85 up to100%of the rated strokestated on theactuator′snameplate. Atvaluesless than85%the valueof
the output signalisreducedproportionally.
4.5AdjustmentoftheCapacitive TransmitterCPT1/A(Fig.8)
The chapterdescribesadjustment ofthe capacitivetransmitterto the specified parameters (standard
valuesofoutputsignals) incasetheyarereset. Thecapacitivetransmitterservesasaposition transmitterof
electricactuators with unified output signalof4÷20 mAinelectricactuators ST1-Ex,orasafeedbackofa
position controller,orifrequireditfunctionsalsoasaremote positiontransmitterofelectricactuators with
unified outputsignalof4÷20 mAin electricactuators ST1-Ex with controllers.
Note:
In casethat reversed output signalsareneeded (inthe position ”OPEN”minimum outputsignal)contact
personnelof service centres.
The capacitivetransmitterCPT1/Aisadjustedbythe producerto the fixed operation strokeaccording to
the orderand wired according tothe wiring diagramsplacedinto thecover.Checkthe powersupplyofthe user
afterconnectingto terminalofthe terminalboardbeforethe transmitteriselectricallychecked. Adjustment of the
capacitivetransmittercan be performed when thepositionswitchesareadjusted. The adjustment isperformed
with the powersupplyof230 V/50 Hzand ambient temperatureof20±5°C.
The following versionsofelectricactuators withbuiltcapacitive transmitters can be specified:
A)The version without any powersupply (2-wireversion)forEA ST1-Ex
B)The version with a powersupply (2-wireversion)forEA ST1-Ex
C)The version CPTas a feedback to the position controller forEA ST1-Exwith controller
A.) Adjustment oftheCapacitiveTransmitterwithoutanyPowerSupply
Beforeconnectingcheckthe powersupply.The measured voltageshouldbe inrangefrom18 upto 28
VDC.
The voltageof thepowersupplymustnotbeinanycasehigherthan30V
DC. The transmittercan beirreversiblydamaged
While checking oradjustingthe output signalof4÷20 mAfollowthese steps:
•ConnectamAmeterofprecisionclass 0,5 andloadingresistancelowerthan
500Ωseriallywith the transmitter(pole „-„; terminal82)
•Put the actuatorto the position ”CLOSED“, the signalvalue shoulddecrease.
•Checkthe signalvalue forthe position ”CLOSED“(4 mA).
•Tune the signalwith looseningthefixing screws(15)and turning thetrimmer(10)
untilthe requiredvalue of4 mAisreached. Tighten thefixing screws.
•Put the actuatorto the position ”OPEN“,the signalvalue should raise.
•Checkthe signalvalue forthe position ”OPEN“(20 mA).
•Tune the signalwithturningthe trimmer(20)until the required value of20 mAis
reached.
•Checkthe signalvalue forthe position ”CLOSED“andthen forthe position ”OPEN“.
•Repeat the procedureuntil the changefrom4 to 20 mAisreached with deviation less then 0,5 %.
•Disconnectthe meterand lockthe screwswith a varnish.
!
Fig.7
Fig.8