Samson TROVIS SAFE 3730-6 Service manual

Translation of original instructions
EB 8384-6S EN
Firmware version 1.12
Series3730
TROVIS SAFE3730-6 Electropneumatic Positioner
with HART®communication and pressure sensors
Edition December 2017

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 8384-6S EN

Contents
EB 8384-6S 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 ................................................................17
3.1 Safety function (SIL)......................................................................................18
3.2 Type of application.......................................................................................19
3.3 Mounting versions........................................................................................19
3.4 Additional equipment...................................................................................19
3.5 Communication ...........................................................................................21
3.6 CongurationusingtheTROVIS-VIEWsoftware .............................................21
3.7 Device overview and operating controls.........................................................21
3.8 Accessories .................................................................................................23
3.8.1 Travel tables ................................................................................................28
3.9 Technical data .............................................................................................29
3.10 Dimensions in mm........................................................................................35
3.10.1 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
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

Contents
4 EB 8384-6S EN
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switch ...............................................................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 Output signal display ...................................................................................84
5.15.3 Supply pressure ...........................................................................................84
5.15.4 Signal pressure (output)................................................................................85
5.16 Electrical connections ...................................................................................85
5.16.1 Connecting the electrical power ....................................................................87
5.16.2 SwitchingamplieraccordingtoEN60947-5-6 ............................................88
5.16.3 Establishing communication..........................................................................88
6 Operation...................................................................................................91
6.1 Serial interface ............................................................................................93
6.2 HART®communication .................................................................................93
6.3 DynamicHART® variables.............................................................................94
7 Operating the positioner..............................................................................97
7.1 Determining the fail-safe position ..................................................................98
7.2 Adjusting the volume restriction Q.................................................................98
7.3 Adapting the display direction ......................................................................99
7.4 Limiting the signal pressure...........................................................................99
7.5 Checking the operating range of the positioner ............................................100
7.6 Initialize the positioner ...............................................................................101
7.6.1 MAX – Initialization based on maximum range............................................104
7.6.2 NOM – Initialization based on nominal range .............................................105
7.6.3 MAN – Initialization based on a manually selected OPEN position................106
7.6.4 MAN2 – Initialization based on manually selected end positions ...................108

Contents
EB 8384-6S EN 5
7.6.5 SUB – Substitute calibration ........................................................................109
7.6.6 TuningtheKPinputlter .............................................................................113
7.7 Zero calibration.........................................................................................114
7.8 On/offapplications ...................................................................................115
7.8.1 Selecting the type of application..................................................................118
7.9 Adjusting inductive limit switch....................................................................119
7.10 Resettodefaultsettings...............................................................................121
7.11 Enabling and selecting parameters..............................................................124
7.12 Operating modes.......................................................................................125
7.12.1 Automatic and manual modes ....................................................................125
7.12.2 Fail-safe position (SAFE).............................................................................126
8 Servicing...................................................................................................127
8.1 Firmware update........................................................................................127
8.2 Preparation for return shipment...................................................................128
9 Malfunctions .............................................................................................129
9.1 Conrmingerrormessages.........................................................................130
9.2 Emergency action ......................................................................................130
10 Decommissioning and removal ..................................................................131
10.1 Decommissioning.......................................................................................131
10.2 Removingthepositioner .............................................................................131
10.3 Disposal....................................................................................................131
11 Annex.......................................................................................................133
11.1 After-sales service......................................................................................133
11.2 Certicates ................................................................................................133
11.3 Code list....................................................................................................134
11.4 Error codes................................................................................................145
11.5 Selecting the characteristic..........................................................................153
 Certicates ................................................................................................155

6 EB 8384-6S EN
The functions of the EXPERTplus Valve Diagnostics are described in the Operating Instructions
uEB8389-1S. EB8389-1SEN is included on the enclosed CD-ROM and is available on
our website.
Note

EB 8384-6S EN 7
Safety instructions and measures
1 Safety instructions and measures
Intended use
SAMSON'sTROVISSAFE3730-6Positionerismountedonpneumaticcontrolvalvesand
used to assign the valve position to the control signal. The device is designed to operate un-
der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 ap-
plicationsorconditions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TROVISSAFE3730-6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 8384-6S 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 8384-6S 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 8384-6S 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8389-1S
−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 8384-6S 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 8384-6S EN

EB 8384-6S EN 13
Markings on the device
2 Markings on the device
2.1 Nameplate
1 Supply pressure
2 Type of protection for explosion-protected devices
3 Input signal
4 Emergency shutdown
5 Features: Yes/No
−Fault indicator
−Limit switches, software
−Limit switch, inductive
−Solenoid valve
−Forced venting function
−Position indicator
−Leakage detection
−Binary input
Explosion-protected version Version without explosion protection
6Firmwareversion(seesection2.3)
7 Model number
8CongurationID
9 Serial number
10 Compliance
SAMSON 3730 - 6
Digital HART
®
Positioner
Supply
Shutdown at
Input
Diagnostics EXPERTplus
Firmware
Model 3730 - 6
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.
1
3
5
67
8
10
2
4
9
SAMSON 3730 - 6
Digital HART
®
Positioner
Supply
Shutdown at
Input
Diagnostics EXPERTplus
Firmware
Model 3730 - 6
Var.-ID Serial no.
SAMSON AG D-60314 Frankfurt Made in Germany
See technical data for ambient temperature
3
5
6
7
8
4
1
9
10

14 EB 8384-6S EN
Markings on the device
2.2 Article code
Positioner TROVISSAFE3730-6 x x x x x x x 0 x x 0 x 0 0
withHART®communication and pressure sensors
Explosion protection
With-
out 000
ATEX II2GExiaIIC/IIBT6;II2DExtbIIICT6IP66 110
IECEx ExiaIIC/IIBT6;Exd[ia]IIC/IIBT6;ExtDA21IP66T80°C 111
EAC Ex 1ExiaIICT6Gb;1ExtbIIICT80°CDbIP66 113
FM IS/ClassI,II,III/Div.1/Gr.ABCDEFG;AExiaIIC/ClassI/Zone0
NI/ClassI/Div.2/Gr.ABCD;S/ClassII/Div.2/Gr.FG
130
CSA ExiaIICT4/T5/T6;ClassI,Zone0;ClassI,GroupsA,B,CandD;
ClassII,GroupsE,FandG;ClassIII;Type4Enclosure
131
ATEX II3GExnAIIT6;II3GExicIIC/IIBT6;II3DExtcIIICT80°CIP66 810
IECEx ExnAIIT6,ExnLIIC/IIBT6;ExtDA22IP66T80°C 811
EAC Ex 2ExnAIICT6Gc;2ExicIICT6Gc;2ExtcIIICT80°CDcIP66 813
Option (additional equipment)
Inductive limit swtch
Without 0
SJ2-SN (NC contact) 1 0
Ventingfunction
Without 0
Solenoidvalve,24VDC 1
Forcedventing,24VDC 2
Additional equipment
Without 0
Position transmitter 1 0
Leakagesensor(includingcableandxingscrew) 2 0
Binary input 3 0
External position sensor
Without 0
With,including10mconnectingcable 1 1
Prepared for connection, without sensor 2
Function
TROVISSAFE(on/offvalves) 5
Emergency shutdown
3.8mA 0
4.4mA 1

EB 8384-6S EN 15
Markings on the device
Positioner TROVISSAFE3730-6 x x x x x x x 0 x x 0 x 0 0
withHART®communication and pressure sensors
Housing material
Aluminum (standard) 1
Stainless steel 2
Special applications
Without 0
Device compatible with paint 1
Exhaustairportwith¼-18NPTthread,backofpositionersealed 2
AttachmentaccordingtoVDI/VDE3847includinginterface 6
AttachmentaccordingtoVDI/VDE3847preparedforinterface 7
2.3 Firmware versions
Firmware revisions
Old New
1.11 1.12
Correction: the valve position is now measured in the fail-safe position. Before correction, 0
or100%wasissuedasaxedvalueinthefail-safepositionalthoughthevalveposition
may have had another value.

16 EB 8384-6S EN

EB 8384-6S EN 17
Design and principle of operation
3 Design and principle of oper-
ation
ÎSee Fig. 1
The electropneumatic positioner is mounted
on pneumatic control valves and used to
assign the valve position (controlled variable
x) to the control signal (set point w). The
positioner compares the electric control
signal of a control system to the travel or
opening angle of the control valve and issues
asignalpressure(outputvariabley)forthe
pneumatic actuator.
The positioner consists of a travel sensor
system (2) proportional to resistance, an
analogi/pconverter(6)withadownstream
air booster (7) and the electronics with
microcontroller (5).
PD
FSK
%
S
mm
%
mm
w
x
Q
GG
Serial
Interface 16
13
22
15
A2
A3
BE
A1
11
2
4
21
20
19
5
3
12 25
6
7
23
8
10
1
14
14
w
x
y
24 V DC
9
17 18
x1)
>12 V
&
24
x 1)Dependingonversion>3.8mAor>4.4mA
1 Control valve
2 Travel sensor
3 PD controller
4A/Dconverter
5 Microcontroller
6i/pconverter
7 Air booster
8 Pressure regulator
9 Flow regulator
10 Volumerestriction
11* Inductive limit switch
12* Solenoid valve
13* Analog position transmitter
or binary input
14 SoftwarelimitswitchA1/
A2
15 Fault alarm output A3
16 LCD
17* Actuation of solenoid valve
18 Galvanic isolation
19 D/Aconverter
20 Communication interface
21 HART®connection
22* Binary input BI
23 Pressure sensor for supply
air ps
24 Pressure sensor for signal
pressure pout
25* Forced venting
* Option
Fig. 1: Block diagram

18 EB 8384-6S EN
Design and principle of operation
Thepositioneristtedwiththreebinarycon-
tacts as standard: A fault alarm output indi-
cates a fault to the control room and two
congurablesoftwarelimitswitchesareused
to indicate the end positions of the valve.
The valve position (x) is transmitted as a
either an angle of rotation or travel to the
pick-up lever and to the travel sensor (2) and
suppliedtoananalogPDcontroller.AnA/D
converter (4) transmits the position of the
valve to the microcontroller (5). The PD
controller (3) compares this actual position to
the4to20mADCcontrolsignal(setpoint)
afterithasbeenconvertedbytheA/D
converter (4). In case of a set point
deviation,theactivationofthei/pconverter
(6) is changed so that the actuator of the
control valve (1) is pressurized or vented
accordingly over the downstream booster
(7). As a result, the closure member of the
valve (e.g. plug) is moved to the position
determined by the set point (w).
The supply air is supplied to the booster (7)
and the pressure regulator (8). An intermedi-
ateowregulator(9)withxedsettingsis
used to purge the positioner and, at the
same time, guarantees trouble-free operation
of the booster. The output signal pressure
supplied by the booster can be limited by
software. Both pressure sensors (23 and 24)
monitor the supply pressure psand the signal
pressure pout.
The volume restriction Q (10) is used to opti-
mize the positioner.
3.1 Safety function (SIL)
The safety function is based on the shutdown
ofthei/pconverter(6).Thiscausesthe
pneumatic actuator to be vented and the
valve to move to its fail-safe position.
Monitoring of the input signal
Thei/pconverterisswitchedoffwhenthe
input signal of the positioner at terminals
+11/–12fallsbelow3.8mAor4.4mAde-
pending on the positioner version (a signal
rangeof4to20mAisrequired).SeeFig.1.
Monitoring the voltage supply
(version with forced venting and solenoid
valve
Thei/pconverterandthesolenoidvalve
(when installed) are shut down whenever the
voltageatterminals+81/–82fallsbelow
12V(aninputvoltageof24VDCisre-
quired). See Fig. 1.
Whenthei/pconverterisswitchedoffas
part of the monitoring of the input signal or
the voltage supply, the fail-safe position Sis
activated and is indicated on the positioner
display.
If required, the user can check the safety
function using the software.
Details on EXPERTplus Valve Diagnostics in
the Operating Instructions u EB8389-1S.

EB 8384-6S EN 19
Design and principle of operation
3.2 Type of application
The types of application 'Control valve' and
'On/off valve' are available. The manual
mode (MAN) and the automatic mode
(AUTO) can be selected with both types of
applications.
Operating
mode Control valve On/off valve
Automatic The positioner uses
the set point w to
position the valve.
Discrete analysis of
the set point w
Reading
on display Valvepositionxin %
Valvepositionxin
%andO/C
(Open/Close)in
alternating
sequence
Manual The positioner follows the manual set
point given over local operation.
Depending on the type of application,
certain diagnostic functions cannot be
performed or analyzed (uEB8389-1Son
EXPERTplusvalvediagnostics).
After initialization and a reset, the type of
application'On/offvalve'isset.
−Section7.8 contains details on discrete
analysis of on/off valves.
−In manual mode, an on/off valve can be
moved past 100% of the nominal range
(with the closed position for AIR TO OPEN)
or below 0% of the nominal range (with
the closed position for AIR TO CLOSE). See
section7.1 for the valve closed position.
3.3 Mounting versions
The positioner is suitable for the following
types of attachment using the corresponding
accessories(seesection3.8):
−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.
3.4 Additional equipment
Inductive limit switch
In this version, the rotary shaft of the posi-
tioner carries an adjustable tag which actu-
ates the built-in proximity switch. The option-
al inductive contact (11) is connected to A1,
while the remaining software limit switch is
connected to A2.
Solenoid valve
If the operating voltage for the solenoid
valve(12)fallsbelow12V,thesupplypres-
sure for the booster is vented to the atmo-
sphere. As a result, the actuator is vented
and the control valve moves to the fail-safe
Note

20 EB 8384-6S EN
Design and principle of operation
position. In manual mode, the manual set
point is reset to 0%. A different manual set
point must entered again.
Forced venting
Ifthevoltagesignalatterminals+81/–82
fallsbelow12V,thei/pconverter(6)is
de-energized. The positioner vents the actua-
tor and the control valve moves to the fail-
safe position determined by the actuator, re-
gardless of the set point.
Analog position transmitter
The position transmitter (13) is a two-wire
transmitter and issues the travel sensor signal
asa4to20mAsignalprocessedbythemi-
crocontroller. Since this signal is issued inde-
pendent of the positioner’s input signal, the
momentarytravel/angleofrotationiscon-
trolled in real-time. Additionally, the position
transmitter allows positioner faults to be indi-
catedoverasignalcurrentof<2.4mAor
>21.6mA.
Leakage sensor
By upgrading the positioner with a leakage
sensor, it is possible to detect seat leakage
when the valve is in the closed position. De-
tailsonEXPERTplusValveDiagnosticsinthe
Operating Instructions uEB8389-1S.
Binary input
Theoptionalbinaryinputcanbecongured:
−Toconnectaoatingcontact
−Toconnectanon-oatingcontact(0to
24VDC)
By selecting a certain function, one of the
following actions can be activated:
−Transmit switching state
The switching state of the binary input is
logged.
−Activate local write protection
Aftertherstinitialization,alocalwrite
protection can be activated.
Whilethebinaryinputisactive,noset-
tings can be changed at the positioner.
The positioner cannot be re-initialized.
EnablingcongurationoverCode3is
not active ( ).
−SwitchAUTO/MAN
The positioner changes from the auto-
matic mode (AUTO) to the manual
mode (MAN) or vice versa.
This function is not performed if the posi-
tioner is in the fail-safe position mode
(SAFE).
−VariousdiagnosticfunctionsuEB8389-
1S
Additionally, the external solenoid valve
functioncanbeselectedifanon-oating
contactiscongured:
−External solenoid valve
The voltage for an external solenoid
valve is connected in parallel to terminals
+31/–32.Thisallowstheswitchingstate
of the solenoid valve to be monitored.
The optional binary input can only be con-
gured using the operator software e.g.
TROVIS-VIEW. The switching state is trans-
mitted when the switch is closed by default.
Note