Samson 3730 Series Service manual

Translation of original instructions
EB 8384-5 EN
Firmware version 1.62
Old design
New design
Series3730
Type3730-5 Electropneumatic Positioner
With FOUNDATION™ eldbus communication · FF Device Rev. 3
Edition December 2017
EB + CD

Note on these mounting and operating instructions
These mounting and operating instructions assist you in mounting and operating the device
safely. The instructions are binding for handling SAMSON devices.
ÎFor the safe and proper use of these instructions, read them carefully and keep them for
later reference.
ÎIf you have any questions about these instructions, contact SAMSON‘s After-sales Service
Department (aftersalesser[email protected]).
The mounting and operating instructions for the devices are included in
the scope of delivery. The latest documentation is available on our website
at www.samson.de > Service & Support > Downloads > Documentation.
Denition of signal words
Hazardous situations which, if not avoided,
will result in death or serious injury
Hazardous situations which, if not avoided,
could result in death or serious injury
Property damage message or malfunction
Additional information
Recommended action
DANGER
!
WARNING
!
NOTICE
!
Note
Tip
2 EB 8384-5 EN

Contents
EB 8384-5 EN 3
1 Safety instructions and measures ...................................................................7
1.1 Notes on possible severe personal injury .......................................................10
1.2 Notes on possible personal injury .................................................................10
1.3 Notes on possible property damage..............................................................11
2 Markings on the device ...............................................................................13
2.1 Nameplate..................................................................................................13
2.2 Article code.................................................................................................14
2.3 Firmware versions........................................................................................15
3 Design and principle of operation ................................................................19
3.1 Mounting versions........................................................................................20
3.2 Additional equipment...................................................................................20
3.3 Communication ...........................................................................................21
3.4 CongurationusingtheTROVIS-VIEWsoftware .............................................21
3.5 Device overview and operating controls.........................................................22
3.6 Accessories .................................................................................................23
3.6.1 Travel tables ................................................................................................28
3.7 Technical data .............................................................................................29
3.8 Dimensions in mm........................................................................................35
3.8.1 FixinglevelsaccordingtoVDI/VDE3845(September2010) ..........................39
4 Measures for preparation............................................................................41
4.1 Unpacking ..................................................................................................41
4.2 Transporting ................................................................................................41
4.3 Storage.......................................................................................................41
5 Mounting and start-up.................................................................................43
5.1 Mounting position........................................................................................43
5.2 Lever and pin position..................................................................................43
5.3 Direct attachment.........................................................................................46
5.3.1 Type3277-5Actuator ..................................................................................46
5.3.2 Type3277Actuator .....................................................................................48
5.4 AttachmentaccordingtoIEC60534-6...........................................................50
5.5 AttachmentaccordingtoVDI/VDE3847-1....................................................52

Contents
4 EB 8384-5 EN
5.6 AttachmentaccordingtoVDI/VDE3847-2....................................................56
5.6.1 Versionforsingle-actingactuator ..................................................................58
5.6.2 Versionfordouble-actingactuator.................................................................60
5.7 AttachmenttoType3510Micro-owValve ....................................................64
5.8 Attachment to rotary actuators ......................................................................64
5.8.1 Heavy-duty version ......................................................................................66
5.9 Reversingamplierfordouble-actingactuators ..............................................70
5.9.1 Reversingamplier(1079-1118or1079-1119) ............................................70
5.10 Attachment of external position sensor...........................................................72
5.10.1 Mounting the position sensor with direct attachment........................................73
5.10.2 MountingthepositionsensorwithattachmentaccordingtoIEC60534-6 .........75
5.10.3 MountingthepositionsensortoType3510Micro-owValve...........................76
5.10.4 Mounting on rotary actuators........................................................................77
5.11 Mounting the leakage sensor ........................................................................78
5.12 Retrottinganinductivelimitcontact..............................................................79
5.13 Attaching positioners with stainless steel housings...........................................80
5.14 Air purging function for single-acting actuators..............................................80
5.15 Pneumatic connections..................................................................................83
5.15.1 Connecting the supply air.............................................................................83
5.15.2 Signal pressure gauges ................................................................................84
5.15.3 Supply pressure ...........................................................................................84
5.15.4 Signal pressure (output)................................................................................85
5.16 Electricalconnections ...................................................................................85
5.16.1 Establishingcommunication..........................................................................87
6 Operation...................................................................................................91
7 Operating the positioner..............................................................................95
7.1 Determining the fail-safe position ..................................................................96
7.2 Adjusting the volume restriction Q.................................................................96
7.3 Adapting the display direction ......................................................................97
7.4 Limiting the signal pressure...........................................................................97
7.5 Checking the operating range of the positioner ..............................................98
7.6 Initializing the positioner ..............................................................................99
7.6.1 MAX – Initialization based on maximum range............................................102

Contents
EB 8384-5 EN 5
7.6.2 NOM – Initialization based on nominal range .............................................103
7.6.3 MAN – Initialization based on a manually selected range.............................105
7.6.4 SUb – Substitute calibration........................................................................106
7.7 Zero calibration.........................................................................................111
7.8 Adjusting the inductive limit contact.............................................................112
7.9 Resettodefaultsettings...............................................................................114
7.10 Enablingandselectingparameters..............................................................114
7.11 Operating modes.......................................................................................116
7.11.1 Automatic and manual modes ....................................................................116
7.11.2 Fail-safeposition(SAFE).............................................................................117
8 Servicing...................................................................................................119
8.1 Firmware update........................................................................................119
8.2 Preparation for return shipment...................................................................120
9 Malfunctions .............................................................................................121
9.1 Conrmingerrormessages.........................................................................122
9.2 Emergencyaction ......................................................................................122
10 Decommissioning and removal ..................................................................123
10.1 Decommissioning.......................................................................................123
10.2 Removingthepositioner .............................................................................123
10.3 Disposal....................................................................................................123
11 Appendix..................................................................................................125
11.1 After-sales service......................................................................................125
11.2 Certicates ................................................................................................125
11.3 Code list....................................................................................................126
11.4 Errorcodes................................................................................................133
11.5 DecimalvaluesofthemodesintheFOUNDATION™eldbus
blocks (Code 48) .......................................................................................139
11.6 DecimalvaluesofthestatesintheFOUNDATION™eldbus
blocks (Code 48) .......................................................................................139
11.5 Selecting the characteristic..........................................................................141

6 EB 8384-5 EN
−Conguration and operation over FOUNDATION™ eldbus are described in the
Conguration Manual u KH8384-5. KH8384-5 is included on the enclosed CD-ROM
and is available on our website.
−The functions of the EXPERTplus Valve Diagnostics are described in the Operating
Instructions uEB8389. EB8389 is included on the enclosed CD-ROM and is available on
our website.
Note

EB 8384-5 EN 7
Safety instructions and measures
1 Safety instructions and measures
Intended use
SAMSON'sType3730-5Positionerismountedonpneumaticcontrolvalvesandisusedtoas-
sign the valve position to the control signal. The device is designed to operate under exactly
denedconditions(e.g.operatingpressure,temperature).Therefore,operatorsmustensure
that the positioner is only used in applications where the operating conditions correspond to
the technical data. In case operators intend to use the positioner in other applications or con-
ditionsthanspecied,contactSAMSON.
SAMSON does not assume any liability for damage resulting from the failure to use the de-
vice for its intended purpose or for damage caused by external forces or any other external
factors.
ÎRefertothetechnicaldataforlimitsandeldsofapplicationaswellaspossibleuses.
Reasonably foreseeable misuse
TheType3730-5Positionerisnot suitable for the following applications:
−Useoutsidethelimitsdenedduringsizingandbythetechnicaldata
Furthermore, the following activities do not comply with the intended use:
−Use of non-original spare parts
−PerformingmaintenanceactivitiesnotspeciedbySAMSON
Qualications of operating personnel
The positioner is to be mounted, started up or operated only by trained and experienced
personnel familiar with the product. According to these mounting and operating instructions,
trained personnel refers to individuals who are able to judge the work they are assigned to
and recognize possible hazards due to their specialized training, their knowledge and expe-
rience as well as their knowledge of the applicable standards.
Explosion-protectedversionsofthisdevicemustbeoperatedonlybypersonnelwhohasun-
dergone special training or instructions or who is authorized to work on explosion-protected
devices in hazardous areas.

8 EB 8384-5 EN
Safety instructions and measures
Personal protective equipment
Nopersonalprotectiveequipmentisrequiredforthedirecthandlingofthepositioner.Work
on the control valve may be necessary when mounting or removing the device.
ÎObservetherequirementsforpersonalprotectiveequipmentspeciedinthevalvedocu-
mentation.
ÎCheck with the plant operator for details on further protective equipment.
Revisions and other modications
Revisions,conversionsorothermodicationsoftheproductarenotauthorizedbySAMSON.
They are performed at the user's own risk and may lead to safety hazards, for example. Fur-
thermore, the product may no longer meet the requirements for its intended use.
Safety features
Upon failure of the air supply or electric signal, the positioner vents the actuator, causing the
valve to move to the fail-safe position determined by the actuator.
Warning against residual hazards
Thepositionerhasdirectinuenceonthecontrolvalve.Anyhazardsthatcouldbecausedin
the valve by the process medium, the signal pressure or by moving parts are to be prevented
by taking appropriate precautions. They must observe all hazard statements, warning and
caution notes in these mounting and operating instructions, especially for installation, start-
up and service work.
If inadmissible motions or forces are produced in the pneumatic actuator as a result of the
supply pressure, it must be restricted using a suitable supply pressure reducing station.
Explosion protection
−Explosive dust atmospheres of zone21 or zone22
ThefollowingappliestotypeofprotectionExiincombustibledustatmospheres:
Ifintrinsicsafetyisimpairedbytheinuenceofdust,anenclosurecomplyingwith
Clause6.1.3ofEN60079-11withatleastindegreeofprotectionIP5Xmustbeused.
TherequirementsaccordingtoClause6.1.3applytothecableglandsaccordingly.The
degreeofingressprotectionisveriedbyatestaccordingtoIEC60529and
EN60079-0(e.g.performedbyVDE).
For use in the presence of combustible dust in compliance with type of protection
ExtbIIIC(protectionbyenclosure),observeClause5.6.3ofEN60079-14.

EB 8384-5 EN 9
Safety instructions and measures
−Servicing explosion-protected devices
If a part of the device on which the explosion protection is based needs to be serviced,
thedevicemustnotbeputbackintooperationuntilaqualiedinspectorhasassessedit
accordingtoexplosionprotectionrequirements,hasissuedaninspectioncerticate,or
giventhedeviceamarkofconformity.Inspectionbyaqualiedinspectorisnotrequired
if the manufacturer performed a routine test on the device before putting it back into op-
eration. Document the passing of the routine test by attaching a mark of conformity to the
device.
Replaceexplosion-protectedcomponentsonlywithoriginal,routine-testedcomponentsby
the manufacturer.
Devices that have already been used outside hazardous areas and are intended for fu-
ture use inside hazardous areas must comply with the safety requirements placed on ser-
viced devices. Before being operated inside hazardous areas, test the devices according
tothespecicationsforservicingexplosion-protecteddevices.
EN60079-17appliestoservicingexplosion-protecteddevices.
−Maintenance, calibration and work on equipment
Observethemaximumpermissiblevaluesspeciedinthecerticatesforintrinsicallysafe
circuits to ensure that components relevant to explosion protection are not damaged.
Responsibilities of the operator
The operator is responsible for proper operation and compliance with the safety regulations.
Operators are obliged to provide these mounting and operating instructions to the operating
personnel and to instruct them in proper operation. Furthermore, the operator must ensure
that operating personnel or third persons are not exposed to any danger.
Responsibilities of operating personnel
Operating personnel must read and understand these mounting and operating instructions as
wellasthespeciedhazardstatements,warningandcautionnotes.Furthermore,theoperat-
ing personnel must be familiar with the applicable health, safety and accident prevention
regulations and comply with them.
Referenced standards and regulations
ThedevicewithaCEmarkingfulllstherequirementsoftheDirectives2014/30/EUand
2011/65/EUaswellas2014/34/EUdependingontheversion.Thedeclarationsofconfor-
mity are included at the end of these instructions.

10 EB 8384-5 EN
Safety instructions and measures
Referenced documentation
The following documents apply in addition to these mounting and operating instructions:
−Operating instructions for valve diagnostics: uEB8389
−The mounting and operating instructions of the components on which the positioner is
mounted (valve, actuator, valve accessories etc.).
1.1 Notes on possible severe personal injury
DANGER
!
Risk of fatal injury due to the formation of an explosive atmosphere.
Incorrect installation, operation or maintenance of the positioner in potentially explosive
atmospheres may lead to ignition of the atmosphere and cause death.
ÎThefollowingregulationsapplytoinstallationinhazardousareas:EN60079-14
(VDE0165,Part1).
ÎInstallation, operation or maintenance of the positioner must only performed by per-
sonnel who has undergone special training or instructions or who is authorized to
work on explosion-protected devices in hazardous areas.
1.2 Notes on possible personal injury
WARNING
!
Risk of personal injury due to moving parts on the valve.
During initialization of the positioner and during operation, the actuator stem moves
throughitsentiretravelrange.Injurytohandsorngersispossibleiftheyareinserted
into the valve.
ÎDuringinitialization,donotinserthandsorngersintothevalveyokeanddonot
touch any moving valve parts.

EB 8384-5 EN 11
Safety instructions and measures
1.3 Notes on possible property damage
NOTICE
!
Risk of damage to the positioner due to incorrect mounting position.
ÎDo not mount the positioner with the back of the device facing upward.
ÎDo not seal or restrict the vent opening when the device is installed on site.
Risk of malfunction due to incorrect sequence during start-up.
The positioner can only work properly if the mounting and start-up are performed in the
prescribed sequence.
ÎPerformmountingandstart-upasdescribedinsection5.
An incorrect electric signal will damage the positioner.
The positioner is powered over the bus line.
ÎOnly use a current source and never a voltage source.
Incorrect assignment of the terminals will damage the positioner and will lead to mal-
function.
For the positioner to function properly, the prescribed terminal assignment must be ob-
served.
ÎConnect the electrical wiring to the positioner according to the prescribed terminal
assignment.
Malfunction due to initialization not yet completed.
The initialization causes the positioner to be adapted to the mounting situation. After ini-
tialization is completed, the positioner is ready to use.
ÎInitializethepositionerontherststart-up.
ÎRe-initializepositionerafterchangingthemountingposition.
Risk of positioner damage due to incorrect grounding of the electric welding
equipment.
ÎDo not ground electric welding equipment near to the positioner.

12 EB 8384-5 EN

EB 8384-5 EN 13
Markings on the device
2 Markings on the device
2.1 Nameplate
1FOUNDATION™eldbus:CommunicationProle
Class
2FOUNDATION™eldbus:PhysicalLayerClass
3 Supply pressure
4 Type of protection for explosion-protected devices
5 Features: Yes/No
−Binaryinput5...30VDC
−Binaryinput,oatingcontact
−Leakage detection
−Limit switch, inductive
−Solenoid valve
6Firmwareversion(seesection2.3)
7 Model number
8CongurationID
9 Serial number
10 Compliance
Explosion-protected version Version without explosion protection
SAMSON
3730 - 5
FOUNDATION™ Fieldbus
Positioner
Communication Profile Class:
Physical Layer Class:
Supply max.
Fieldbus *
Diagnostics EXPERTplus
Firmware
Model 3730 - 5
Var. ID Serial no.
SAMSON AG D-60314 Frankfurt Made in Germany
* See technical data and explosion protection
certificate for permissible ambient temperature
and maximum values for connection to
certified intrinsically safe circuits.
3
SAMSON
3730 - 5
FOUNDATION™ Fieldbus
Positioner
Communication Profile Class:
Physical Layer Class:
Supply max.
Fieldbus
Diagnostics EXPERTplus
See technical data for ambient temperature
Firmware
Model 3730 - 50
Var. ID Serial no.
SAMSON AG D-60314 Frankfurt Made in Germany
3
4
6
6
7
7
8
8
9
10 10
5
5
9
1
21
2

14 EB 8384-5 EN
Markings on the device
2.2 Article code
Positioner Type3730-5 xxx0xxxx0x00x0xx
WithLCDandautotune,FOUNDATION™eldbus
Explosion protection
Without 0
ATEX II2GExiaIICT6Gb;II2DExiaIIIT80°CDb 1
CSA ExiaIICT6;ClassI,II,Div.1,GroupsA–G;ExnAIIT6;ExnLIICT6;
ClassI,II,Div.2,GroupsA–G;ClassII,Div.1,GroupsE–G;ClassIII
3
FM ClassI,Zone0AExiaIIC;
ClassI,II,III,Div.1,GroupsA,B,C,D,E,F,G;
ClassI,Div.2,GroupsA,B,C,D;ClassII,Div.2,GroupsF,G
ATEX II2DExtbIIICT80°CDb 5
ATEX II3GExnAIICT6Gc,II3DExtcIIICT80°CDc 8
Additional equipment
Inductive limit contact Without 0
SJ2-SN (NC contact) 1
Solenoid valve Without 0
With,24VDC 4
Externalpositionsensor Without 0
With 0 1 0 0
Leakage sensor Without 0
With 1
Binary input Without 0
Floating contact 0 1
Diagnostics
EXPERTplus 4
Housing material
Aluminum (standard) 0
Stainless steel 1.4408 0 1
Special applications
Without 0
Device compatible with paint 1
Exhaustairportwith¼-18NPTthread,backofpositionersealed 0 0 0 0 2
AttachmentaccordingtoVDI/VDE3847includinginterface 6
AttachmentaccordingtoVDI/VDE3847preparedforinterface 7
Special version
Without 000
NEPSI ExiaIICT6 1 0 0 9
NEPSI ExnAIIT6;ExnLIICT6 8 0 1 0
IECEx ExiaIICT6...T4Gb;ExiaIICT80°CDb 1 0 1 2
IECEx ExtbIIICT80°CDb 5 0 3 4

EB 8384-5 EN 15
Markings on the device
Positioner Type3730-5 xxx0xxxx0x00x0xx
WithLCDandautotune,FOUNDATION™eldbus
IECEx ExnAIICT6...T4Gc;ExtcIIICT80°CDc 8 0 1 5
EAC Ex 1ExiaIICT6;ExtbIIICT80°CDbX,IP66 1 0 1 4
EAC Ex 2ExnAicIICT6/T5/T4GcX;ExtcIIICT80°CDbX,IP66 8 0 2 0
2.3 Firmware versions
Firmware revisions (Control R)
R1.44 to 1.46
Internal revisions
R1.52
• Diagnostics:allEXPERTplusdiagnosticfunctionsareavailablewithouthavingtoactivatethemin
the positioner (uEB8389onEXPERTplusValveDiagnostics).
• Additional function blocks: 2x DO (Discrete Output), 1x IS (Input Selector), 1x MAI (Multiple
AnalogInput),1xMAO(MultipleAnalogOutput).SeeCongurationManualuKH8384-5
• New functions:new functions are implemented in the DO Function Block (Discrete Output). See
CongurationManualuKH8384-5
• Action on fault detection:IftheAOTransducerBlockisinO/Smodeandthecondensedstate
changes to "Maintenance alarm", the following actions can be started:
• Hold last value
• Move valve to fail-safe position
• Movetoapredenedfaultstatevalue
CongurationManual
u KH8384-5
R1.54 to 1.56
Code 48 extended: The following subitems have been added to Code 48 (uEB8389):
• h0:Activation/deactivationreferencetest
• h1:Referencetestcompleted(YES/No)
• h3: Automatic reset of diagnosis after this time
• h4:Remainingtimeuntildiagnosisreset
R1.54 to 1.56
Internal revisions
R1.57
Data logging: Data logging has been extended to document errors in internal device communication.
R1.62
The positioner moves more quickly to closed-loop operation due to an improved start-up routine.

16 EB 8384-5 EN
Firmware revisions (Communication K)
Further details can be found in uKH8384-5.KH8384-5isincludedontheenclosedCD-ROMand
is available on our website.
K 1.21
• "Device not initialized" diagnostic alarm: the diagnostic alarm “Device not initialized” is gener-
ated when the positioner is not initialized and the condensed state is set to “Maintenance alarm”.
• Leakage sensor at binary input 2: The connection of a leakage sensor at binary input 2 (by se-
lectingLEAKAGESENSORinCONFIG_BINARY_INPUT2parameteroftheAOTransducerBlock)
causes:
• InformationspeciedinXD_ERROR_EXTparameterintheAOTransducerBlockandthegen-
eration of a diagnostic alarm which is logged
• ThestateofthebinaryinputisreportedinBINARY_INPUT2parameterintheAOTransducer
Block
Theconnectionofaleakagesensoratbinaryinput2(byselectingLEAKAGESENSORinCON-
FIG_BINARY_INPUT2parameteroftheAOTransducerBlock)causes:
• InformationspeciedinXD_ERROR_EXTparameterintheAOTransducerBlockandthegen-
eration of a diagnostic alarm which is logged
• ThestateofthebinaryinputisreportedinBINARY_INPUT2parameterintheAOTransducer
Block
• Display of the operating range FINAL_VALUE_RANGE: the correction of the operating range FI-
NAL_VALUE_RANGEoveron-siteoperationofthepositioner(Code8/9)isalsotransferredover
eldbusinrmwareversionK1.21andhigher.
• De-energized internal solenoid valve: a masking allows to set whether a de-energized internal
solenoid valve generates an AO block error, resulting in a block alarm.
• SOLENOID_SELECT parameter:theSOLENOID_SELECTparameterinrmwareK1.21andhigh-
er allows to set whether a "Maintenance now" block error of the AO Transducer Block results in
an output error in the AO Block.
• TOT_VALVE_TRAV_LIM parameter: new range: 1000 to 990 000 000
K 1.22
• Operating range FINAL_VALUE_RANGE:theoperatingrangeFINAL_VALUE_RANGEoftheAO
TransducerBlockiscomparedonenteringitwithTRANSM_PIN_POS.
IftheTRANSM_PIN_POSparameterischanged,thepositionercheckswhetherthesettingand
unitmatchthecurrentoperatingrangeFINAL_VALUE_RANGE.Ifthisisnotthecase,theFINAL_
VALUE_RANGEparameterissetto0to100%.
• VALVE_TYPE parameter: the parameter of the AO Transducer Block is set depending on the se-
lectedPIN_POS.ThelastsettingiskeptwhenVALVE_TYPEissettoOFF.
• FINAL_VALUE parameter:theoutputvalueisscaledwithFINAL_VALUE_RANGEinrmware
K1.22andhigherandnotaspreviouslywithXD_SCALE.
• Display of O/S mode in AO Transducer Block:iftheAOTransducerBlockissettoO/Smode,
thisisindicatedinthepositionerdisplaybyMAN/AUTO.

EB 8384-5 EN 17
Markings on the device
Firmware revisions (Communication K)
Further details can be found in uKH8384-5.KH8384-5isincludedontheenclosedCD-ROMand
is available on our website.
K 1.23
Internal revisions
K 1.24
• BUS_ADDRESS parameter: the bus address has the default setting of 248.
• Device type:inthedeliveredstate,thedeviceisconguredasabasicdevice.
K 1.25
Internal revisions
K 2.01
• Additional function blocks: 2x DO (Discrete Output), 1x IS (Input Selector), 1x MAI (Multiple An-
alog Input), 1x MAO (Multiple Analog Output).
• New functions: the following new functions are implemented in the DO Function Block (Discrete
Output):
• Discreteanalysisofon/offvalves
• Start partial stroke test (PST)
• Start and reset the data logger
• Resettingthediagnosis
• Stop diagnosis
• Move to fail-safe position
• Lock on-site operation
• Action on fault detection:IftheAOTransducerBlockisinO/Smodeandthecondensedstate
changes to "Maintenance alarm", the following actions can be started:
• Hold last value
• Move valve to fail-safe position
• Movetoapredenedfaultstatevalue
K 2.02
Partial stroke test (PST):congurationofthepartialstroketest(PST)overtheFFparametersisno
longerpossible.CongurationovertheTROVIS-VIEWsoftwareisstillpossible.
K 2.03
Partial stroke test (PST):congurationofthepartialstroketest(PST)overtheFFparametersisnolon-
gerpossible.CongurationovertheTROVIS-VIEWsoftwareisstillpossible.Thepartialstroketestcan
be started over the binary input BI2.
K 2.04
Internal revisions
K 2.05
Internal revisions
K 2.06
Process control system: newrmwarecompatiblewithHoneywellExperion®control system.
Communication:improvedcommunicationofvalvepositionssmallerthan–0.9%.

18 EB 8384-5 EN
Markings on the device
Firmware revisions (Communication K)
Further details can be found in uKH8384-5.KH8384-5isincludedontheenclosedCD-ROMand
is available on our website.
K 2.07
Testing device functioning: monitoring of internal device communication has been added to the cyclic
testing of the device functions.
K3.01
• CertiedaccordingtoITK6.2.0
• DiagnosticsspecicationaccordingtoFF-912
• Function block added: AI (Analog Input)
• Function blocks removed: MAI (Multiple Analog Input), MAO (Multiple Analog Output), IS (Input
Selector)

EB 8384-5 EN 19
Design and principle of operation
3 Design and principle of oper-
ation
ÎRefertoFig.1
The positioner is mounted on pneumatic con-
trol valves and is used to assign the valve
position (controlledvariablex)tothecontrol
signal (setpointw).Thepositionercompares
the control signal of a control system to the
travel or rotational angle of the control valve
and issues a signal pressure (output vari-
abley)forthepneumaticactuator.
The positioner mainly consists of an electric
travelsensorsystem,ananalogi/pconvert-
er with a downstream air capacity booster
and the electronics with the microcontroller.
Whenasystemdeviationoccurs,theactua-
toriseitherventedorlledwithair.Ifneces-
sary, the signal pressure change can be
slowed down by a volume restriction. The
signal pressure supplied to the actuator can
be limited by software or on site to 1.4, 2.4
or3.7bar.
Thexedowregulatorensuresaconstant
airowtotheatmosphere,whichisusedto
ushtheinsideofthepositionerhousingand
tooptimizetheaircapacitybooster.Thei/p
converter is supplied with a constant up-
stream pressure by the pressure regulator to
1 Control valve
2 Travel sensor
3 PD controller
4A/Dconverter
5 Microcontroller
6i/pconverter
7 Air capacity booster
8 Pressure regulator
9 Flow regulator
10 Volumerestriction
11* Inductive limit contact
12* Solenoid valve
13 IEC61158-2interface
module
14 Binary input BI1 (passive)
15* Binary input BI2 (active)
16 Display
17* Actuation of solenoid valve
18* Electricalinsulation
19 D/Aconverter
20 Communication interface
* Option
w
x
Q
%
S
mm
GG
PD
Serial
Interface 16
15
BE2
BE1
112
4
13
20
17 18
19
24V DC
5
3
12
6
7
8
10
1
14
9
x
y
Fig.1: Block diagram

20 EB 8384-5 EN
Design and principle of operation
compensateforanyuctuationsinthesupply
pressure.
The positioner communicates and is powered
usingIEC61158-2transmissiontechnology
conforming to FOUNDATION™eldbusspeci-
cation.
As a standard feature, the positioner comes
with a binary input used to signalize process
information over the FOUNDATION™eldbus
network.
The extended EXPERTplusdiagnosticsarein-
tegrated into the positioner. They provide in-
formation on the positioner and generate di-
agnostic and status messages, which allow
faults to be pinpointed quickly.
3.1 Mounting versions
The positioner is suitable for the following
types of attachment using the corresponding
accessories(seesection3.6):
−Direct attachment to SAMSON
Type3277 Actuator
ÎSeesection5.3.
−Attachment to actuators according to
IEC60534-6:
ÎSeesection5.4.
−Attachment according to VDI/
VDE3847-1/-2:
ÎSeesection5.5andsection5.6.
−Attachment to Type3510 Micro-ow
Valve
ÎSeesection5.7.
−Attachment to rotary actuators accord-
ing to VDI/VDE3845:
ÎSeesection5.8.
3.2 Additional equipment
Solenoid valve
If the operating voltage for the solenoid
valve (12) fails, the supply pressure for the
i/pconverterisventedtotheatmosphere.
The positioner can no longer operate and
the control valve moves to the fail-safe posi-
tion determined by the actuator, regardless
of the set point.
The manual set point is also reset to 0 % af-
ter the solenoid valve is activated.
A different manual set point must be entered
again (Code 1).
Inductive limit contact
In this version, the rotary shaft of the posi-
tioner carries an adjustable tag which actu-
ates the built-in proximity switch.
External position sensor
In this version, only the sensor is mounted to
the control valve. The positioner is located
separately from the valve. The connection of
x and y signals to the valve is established by
cable and piping for air (only without induc-
tive limit contact).
NOTICE
!