Samson 3730-3 Mounting And Operating Instructions
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Samson 3730-3 Mounting And Operating Instructions

Electropneumatic positioner
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Electropneumatic Positioner
Type 3730-3
With HART communication
Fig. 1 · Type 3730-3
Mounting and
Operating Instructions
EB 8384-3 EN
Firmware version 1.20
Edition January 2005

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Summary of Contents for Samson 3730-3

  • Page 1 Electropneumatic Positioner Type 3730-3 With HART communication Fig. 1 · Type 3730-3 Mounting and Operating Instructions EB 8384-3 EN Firmware version 1.20 Edition January 2005...

  • Page 2: Table Of Contents

    Contents Contents Page Design and principle of operation ....8 Communication ......9 Additional equipment .
  • Page 3 Contents Start-up via local interface (SSP) ....55 Start-up over HART communication ....55 Faults .
  • Page 4 Proper shipping and appropriate storage are assumed. Note! The device with a CE marking fulfils the requirements of the Directives 94/9/EC (ATEX) and 89/336/EEC (EMC). The declaration of conformity can be viewed and downloaded on the Internet at http://www.samson.de. EB 8384-3 EN...
  • Page 5 Versions Type 3730-3 X X X X X 0 0 X 0 X 0 0 x 0 Article code Explosion protection Without II 2 G EEx ia IIC T6/II 2 D IP 65 T 80 °C acc. to ATEX Ex ia FM/CSA II 3 G EEx na II T6 /II 3 D IP 65 T 80 °C...
  • Page 6 Firmware modification Modifications of positioner firmware in comparison to previous versions Previous 1.00 1.10 The HART protocol as per HART specification Revision 5 is supported by de- fault setting. The setting can be changed to HART Revision 6 over TROVIS-VIEW. HART tools as well as AMS or handheld communicators are currently not supported by the Revision 6 version.
  • Page 7 Firmware modification EB 8384-3 EN...

  • Page 8: Design And Principle Of Operation

    The positioner basically consists of a travel The positioner is equipped with an interface sensor system that functions proportional to to allow the SAMSON TROVIS-VIEW Con- the resistance, an analog i/p module with figuration and Operator Interface software downstream booster as well as the electronic to transmit data and parameters over an unit with a microcontroller.

  • Page 9: Communication

    Design and principle of operation Communication Additional equipment The positioner is equipped with an interface As an option, the device can be additionally for HART protocol (Highway Addressable equipped with a solenoid valve for forced Remote Transducer) for communication pur- venting, an analog position transmitter, an poses.

  • Page 10: Technical Data

    Design and principle of operation Positioner with position transmitter Version with inductive limit switch The position transmitter (13) is a two-wire The rotary shaft of the positioner carries an transmitter and issues the travel sensor sig- adjustable tag which actuates the installed nal as a 4 to 20 mA signal processed by the proximity switch.
  • Page 11 Impedance in the HART frequency range: receive 350 to 450 Ω, Communication (HART) send: approx. 155 Ω For handheld communicator: device description for 3730-3, Software requirements For PC: DTM file acc. to Specification 1.2, suitable for integrating the positioner in (HART) frame applications that supports the FDT/DTM concept (e.g.
  • Page 12 Design and principle of operation Solenoid valve SIL 4 approval acc. to IEC 61508 24 V DC reverse polarity protection, static destruction limit 40 V; − 5.6 V Input Current consumption I = (corresponding to 4.5 mA at 24 V) 4020W Signal "0"...

  • Page 13: Attachment To The Control Valve - Mounting Parts And Accessories

    The positioner can be attached either di- The positioner is standard equipped with the rectly to a SAMSON Type 3277 Actuator or lever M (pin position 35). according to IEC 60534-6 (NAMUR) to con- trol valves with cast yokes or rod-type yokes...
  • Page 14 Attachment to the control valve – mounting parts and accessories Direct attachment to Type 3277-5 Actuator Order no. Table 1 Mounting parts For actuators with 120 cm effective diaphragm area 1400-7452 Switchover plate (old) for Actuator Type 3277-5xxxxxx.00 (old) 1400-6819 Switchover plate new for Actuator Type 3277-5xxxxxx.01 (new) 1400-6822 Accessories...
  • Page 15 Attachment to the control valve – mounting parts and accessories Table 4 Attachment to rotary actuators (VDI/VDE 3845 for all sizes of fixing level 2) see Figs. 7 and 8 VDI/VDE 3845 for all sizes of fixing level 2 1400-7448 Mounting With follower clamp for Type 3278 Actuator with 160/320 cm...

  • Page 16: Direct Attachment

    Attachment to the control valve – mounting parts and accessories Direct attachment left) pointing towards the signal pressure connection. Make sure that the bonded 2.1.1 Type 3277-5 Actuator gasket (14) points towards the actuator yoke. Refer to Table 1 on page 14 for the required 5.
  • Page 17 Attachment to the control valve – mounting parts and accessories Lever Symbols 1.1 Nut Switchover plate (9) 1.2 Disk spring Actuator stem Follower pin extends Follower clamp Vent plug Attachment left Attachment right Stopper Connecting plate Actuator stem 6.1 Seal rings retracts Pressure gauge bracket Press.

  • Page 18: Type 3277 Actuator

    Attachment to the control valve – mounting parts and accessories 2.1.2 Type 3277 Actuator rests on the top of the follower clamp (3). Adjust the lever (1) correspondingly Refer to Table 2 on page 14 or the required and open the positioner cover to hold mounting parts as well as the accessories the positioner shaft in position at the cap with their order numbers.
  • Page 19 Attachment to the control valve – mounting parts and accessories Lever 12.1 Screw 1.1 Nut 12.2 Stopper or connection for external piping 1.2 Disk spring Switch plate Follower pin Gasket 10 14 Follower clamp Formed seal 10 Cover plate Gasket 11 Cover 12 Connection block Lever M...

  • Page 20: Attachment According To Iec 60534-6

    Attachment to the control valve – mounting parts and accessories Attachment according to 3. Mount connecting plate (6) or pressure gauge bracket (7) with pressure gauges IEC 60534-6 (8) on the positioner, making sure both The positioner is attached to the control seal rings (6.1) are seated properly.
  • Page 21 Attachment to the control valve – mounting parts and accessories Attachment to rod-type yoke Rods with Ø max. 35 mm Attachment to NAMUR rib Additional bracket for actuators with 2800 cm Lever XL and L and travel ≥ 60 mm Lever Disk spring 14.1...

  • Page 22: Attachment To Type 3510 Micro-Flow Valve

    Attachment to the control valve – mounting parts and accessories Attachment to Type 3510 Micro-flow Valve The positioner is attached to the valve yoke using a bracket. Refer to Table 3 on page 14 for the required mounting parts as well as the accessories with their order numbers.
  • Page 23 Attachment to the control valve – mounting parts and accessories Lever Disk spring Follower pin Clamp Connecting clamp Seal rings Pressure gauge bracket Pressure gauge mounting kit Bracket Screw Important! Always use the connecting plate (6) included in the accessories to connect supply and output.

  • Page 24: Attachment To Rotary Actuators

    (Ø5) included in the Prior to the attachment of the positioner to mounting kit and screw tight into the the SAMSON Type 3278 Rotary Actuator, bore for pin position 90°. you have to mount the associated adapter 7.
  • Page 25 Attachment to the control valve – mounting parts and accessories (7, 8) 10.1 Important! Always use the connecting plate (6) included in the accessories to connect supply and output. Never screw threaded Control valve opens counterclockwise parts directly into the housing.

  • Page 26: Reversing Amplifier For Double-Acting Actuators

    Attachment to the control valve – mounting parts and accessories Reversing amplifier for Note! double-acting actuators The sealing plug (1.5) in the Type 3730 Positioner should not be unscrewed out of For the use with double-acting actuators, the the reversing amplifier. positioner must be fitted with a reversing The rubber seal (1.4) is not required and amplifier.
  • Page 27 Attachment to the control valve – mounting parts and accessories From the positioner Output 38 Supply 9 Control signals to the actuator Reversing amplifer Connecting ring 1.1 Special screws 6.1 O-rings 1.2 Gasket 6.2 Screws 1.3 Special nuts 1.4 Rubber seal 1.5 Sealing plug 1.6 Filter Fig.

  • Page 28: Attaching An External Position Sensor

    Attachment to the control valve – mounting parts and accessories Attaching an external position sensor Refer to Table 6 on page 33 for a list of the mounting parts as well as the accessories re- quired for mounting the position sensor. Accessories for the pneumatic connection to the positioner housing can be found in Ta- ble 7.
  • Page 29 Attachment to the control valve – mounting parts and accessories Type 3277 Actuator with 240 to 700 cm 2. Screw the position sensor (20) onto the mounting plate (21). The signal pressure is routed to the connec- 3. Depending on the actuator size and tion at the side of the actuator yoke for the rated travel of the valve, determine the version "Actuator stem extends".

  • Page 30: Mounting The Position Sensor With Attachment According To Iec 60534-6

    Attachment to the control valve – mounting parts and accessories 2.6.2 Mounting the position sensor Place the lever (1) in mid-position and hold it in place. Screw on the nut (1.1). with attachment according to 5. Place the follower clamp (3) on the actu- IEC 60534-6 ator stem, align and fasten it, making For the required mounting parts as well as...

  • Page 31: Mounting The Position Sensor To Type 3510 Micro-Flow Valve

    Attachment to the control valve – mounting parts and accessories For other actuator sizes or travels, select the Place the lever (1) in mid-position and lever and pin position from the travel table hold it in place. Screw on the nut (1.1). on page 13.

  • Page 32: Mounting The Position Sensor To Rotary Actuators

    Attachment to the control valve – mounting parts and accessories 2.6.4 Mounting the position sensor 4. Place the lever (1) and disk spring (1.2) on the sensor shaft. to rotary actuators Place the lever (1) in mid-position and For the required mounting parts as well as hold it in place.
  • Page 33 Attachment to the control valve – mounting parts and accessories Table 6 Mounting parts for position sensor Order no. Direct attachment Mounting parts for actuators with 120 cm see Fig. 11 left 1400-7472 G 1/8 1400-6820 Connecting plate (9, old) for Actuator Type 3277-5xxxxxx.00 1/8 NPT 1400-6821...

  • Page 34: Connections

    Connections Connections 3.1.1 Signal pressure gauges To monitor the supply air (Supply) and sig- Pneumatic connections nal pressure (Output), we recommend that pressure gauges be attached (see accesso- Caution! ries in Tables 1 to 5). The threads in the positioner housing are not designed for direct air connection! 3.1.2 Supply pressure The required supply air pressure depends...
  • Page 35 Connections d = Seat diameter [cm] ∆p = Differential pressure across the valve [bar] A = Actuator diaphragm area [cm = Upper bench range of the actuator [bar] If there are no specifications, calculate as follows: Required supply pressure = Upper bench range value + 1 bar Note! The signal pressure at the output (Out-...

  • Page 36: Electrical Connections

    Connections Electrical connections Caution! The terminal assignment specified in the certificate must be adhered to. Re- For electrical installation, you are re- versing the assignment of the electrical ter- quired to observe the relevant elec- minals may cause the explosion protection trotechnical regulations and the acci- to become ineffective! dent prevention regulations that ap-...

  • Page 37: Switching Amplifiers

    Connections The position transmitter is operated on a Shorten the connecting lead to the re- two-wire circuit. The usual supply voltage is quired length and strip the insulation off. 24 V DC. Considering the resistance of the Route the strands to the following con- supply leads, the voltage at the position tacts of the free connector: transmitter terminals can be between 12...

  • Page 38: Establishing Communication

    Connections tween controller and positioner (interfacing 3.2.2 Establishing communication as for positioner connected in hazardous ar- Communication between PC and positioner eas, see Fig. 16). (via FSK modem or handheld communica- If the positioner is used in hazardous areas, tor, if necessary, using an isolation ampli- an explosion-protected isolation amplifier is fier) is based on the HART protocol.
  • Page 39 Connections Standard bus (Multidrop): In the standard bus (Multidrop) mode, the positioner follows the analog current signal (reference variable) as for point-to-point communication. This operating mode is, for example, suitable for split-range operation of positioners (series connection). The bus address/polling address has to be within a range of 1 to 15.

  • Page 40: Operation

    Operation Volume restriction Q Operation The volume restriction is used to adapt the air delivery to the actuator size. Two fixed Note! settings are possible depending on how the A summary about operating and start up air is routed at the actuator: can be found in section 7 on page 60.
  • Page 41 Operation Displays and their meaning AUtO Automatic mode TunE Initialization in progress Maximum range Clockwise Available Not available Counterclockwise Zero calibration Nominal travel Error ää Escape Increasing/increasing äæ ix greater than 21.6 mA Increasing/decreasing Reset ix smaller than 2.4 mA Start Blinking Controlled operation w too low...

  • Page 42: Enabling And Selecting Parameters

    Operation Enabling and selecting Note! parameters To cancel a value that you have just entered under a code, turn the button until ESC The codes which are marked with an aster- appears on the display and press to con- isk (*) in section 11 on page 65 onwards firm.

  • Page 43: Operating Modes

    Operation Operating modes Switching to manual operating mode Over Code 0 , press the button, AUtO 4.3.1 Automatic and manual appears in the display, Code 0 blinks. operating modes Turn button until MAN appears. Prior to initialization: If the positioner has not been initialized yet, the automatic operating AUtO cannot be se- lected.

  • Page 44: Safe - Fail-Safe Position

    Start-up and settings 4.3.2 SAFE – Fail-safe position Start-up and settings If you want to move the valve to fail-safe po- Note! sition, proceed as follows: A summary about start-up and operation can be found in section 7 on page 60. A leaflet including the same summary is also Select Code 0 , press the button, AUtO or...

  • Page 45: Setting The Volume Restriction Q

    Start-up and settings does not have any effect on the operation of Turn button until the display is ad- the positioner. justed to the desired direction, then con- firm reading direction by pressing the button. Setting the volume restriction Q For actuators smaller than 240 cm with Limiting the signal pressure...
  • Page 46 Start-up and settings 3. Turn the button until Code 1 appears, Note! confirm Code 1 by pressing button. If the selected pin position is smaller than in- The hand symbol and Code 1 blink. tended for the respective travel range, the 4.

  • Page 47: Initialization

    Start-up and settings Initialization Warning! During the initialization, the control During initialization the positioner adapts it- valve moves through its entire tra- self optimally to the friction conditions and vel/angle of rotation range. Therefo- the signal pressure demand of the control re, do not start initialization while a valve.

  • Page 48: Initialization Modes

    Start-up and settings A malfunctioning leads to the process being adopts this travel/angle of rotation as the interrupted. The fault symbol appears on operating range from 0 to 100 %. the display. See section 5.8 on page 56. For control valves, whose maximum range If the slide switch is set to AIR TO CLOSE, exceeds the effective travel/angle of rotation the positioner with firmware version 1.10 or...
  • Page 49 Start-up and settings During the initialization procedure, the Note! positioner checks whether the control valve For MAX initialization, the positioner cannot can move through the indicated nominal indicate nominal travel/angle of rotation in range (travel or angle) without collision. mm/°, Code 5 remains disabled. In case of a positive result, the indicated In addition, the lower (Code 8) and the up- nominal range is adopted with the limits of...
  • Page 50 Start-up and settings MAN – Initialization based on nominal range Default 15 (with default upper x-range value by means of manual adjustment). Initialization mode just as NOM , however, for starting up valves with unknown nominal → Code 5 , press Turn range.
  • Page 51 Start-up and settings → Code 6 , press Turn → MAN , press turn (substitute configuration, without initializa- tion) This initialization mode is an emergency mode. The positioner parameters are esti- Default MAX mated and not determined by an initializa- tion procedure, so that a high stationary ac- curacy cannot be expected.
  • Page 52 Start-up and settings known, it is recommended to accept its K and T values. Default 15 After setting the AIR TO OPEN/CLOSE switch for the fail-safe position, setting the volume restriction and pressing the INIT key, the positioner calculates its configuration →...
  • Page 53 Start-up and settings CCL = counterclockwise and CL = clockwise. Direction of rotation which causes the valve Default OFF to move to the CLOSED position (view onto the rotary switch movement while positioner cover is open). → Code 16 , Turn Press Retain default value for pressure limit,...
  • Page 54 Start-up and settings gency mode) and possibly also error code Zero point correction 57 may appear on the display. Finally, if process operations allow it, the These indications do not influence the zero point must be adjusted according to positioner’s readiness for operation. section 5.9 on page 56.

  • Page 55: Start-Up Via Local Interface (Ssp)

    (Order no. ing to the Specification 1.2 is available for 1400-7700). communication. This allows the device, for Use the TROVIS-VIEW software with 3730-3 example, to be run with the PACTware op- device module installed. erator interface. All the positioner's parame-...

  • Page 56: Faults

    Start-up and settings Faults Zero calibration In case of a fault, the fault symbol In case of discrepancies with the closing po- pears at the top of the display in the sition of the valve, e.g. with soft-sealed left-hand corner. plugs, it may become necessary to recalibrate the zero point.

  • Page 57: Reset To Default Values

    Start-up and settings 5.10 Reset to default values This function resets all parameters to the fac- tory default values (see list of codes in sec- tion 11). Enable configuration: Default OFF → Code 3 , press Turn → ON , press turn After enabling: Default OFF...

  • Page 58: Adjusting The Limit Switch

    +41/–42. on the shaft which operates the proximity The device is set up accordingly when deliv- switch (3). ered ex works SAMSON. For operation of the inductive limit switch, Setting the switching point: the corresponding switching amplifier (see section 3.2.1) must be connected to the out- Important! put.
  • Page 59 Adjusting the limit switch leaves the field of the proximity switch (3). You can measure the switching voltage as an indicator. Contact function: Tag leaving the field > Contact is made. Tag entering the field > Contact is opened. Adjustment screw (2) Tag (1) Proximity switch (3) Fig.

  • Page 60: Quick Start-Up Guide

    Mounting Make sure the lever can still move. Direct attachment Attachment to rotary actuators to SAMSON Type 3277 Actuator Lever M pin position 90° Travel mm Actuator cm Pin position Put the valve into the closed position, de- termine the opening direction.

  • Page 61: Start-Up

    Quick start-up guide Operation Start-up Selecting the parameters or values Connect pneumatic supply air (1.4 to Each parameter has a code number which 6 bar). is shown in the display. Use the button to Apply an electrical reference variable (4 to select.

  • Page 62: Initialization

    Quick start-up guide → Code 4, ↵ turn Initialization Select pin position, ↵ → Code 5 , ↵ turn Important! Perform a reset (Code 36) prior to each ini- Enter nominal travel/range, ↵ tialization → Code 6 , ↵ turn select NOM , ↵...

  • Page 63: Retrofitting An Inductive Limit Switch

    Retrofitting an inductive limit switch Retrofitting an inductive limit switch Required retrofit kit: Limit switch Order no. 1400-7460 1. Take off the rotary pushbutton (3) and cap (1), unthread the five fixing screws (2) and lift off the plastic cover (9). 2.

  • Page 64: Maintenance

    Maintenance Maintenance Servicing explosion-protected devices The positioner does not require any mainte- nance. If a part of the positioner on which the ex- plosion protection is based needs to be ser- There are filters with a 100 µm mesh size in viced, the positioner must not be put back the pneumatic connections for supply and into operation until an expert has inspected...

  • Page 65: Code List

    Code list Code list Code Parameter – Display, values Description [default setting] Important! Codes with marked with an asterisk (*) must be enabled with Code 3 prior to configuration. AUtO = Automatic mode MAN = Manual mode Operating mode SAFE = Fail-safe position ESC = Escape [MAN]...
  • Page 66 Code list Nominal range For initialization using NOM or SUb, the nominal travel/angle of rotation of the valve must be entered. [15.0] mm or angle ° The permissible adjustment range depends on the pin position according to the table on page 67. After initialization has been successfully completed, the maximum nominal travel/angle reached on initialization is displayed.
  • Page 67 Code list Upper range travel/angle of rotation in the nominal or operating Upper x-range value range. Value is displayed or must be entered. 20.0 to 100.0 [100.0] % The characteristic is adapted. nominal range, Example: The operating range is modified, for example, to limit Specified in mm or angle °...
  • Page 68 Code list w-start Lower range value of the applicable reference variable range must be smaller than the final value w-end, 0 % = 4 mA 0.0 to 75.0 [0.0] % of the The reference variable range is the difference between w-end reference variable range and w-start, and must be ∆w ≥...
  • Page 69 3: Butterfly valve linear 8: Segmented ball valve eq. p. 4: Butterfly valve eq. percentage 9: User-defined * * Definition over SAMSON TROVIS-VIEW software or HART communication The time required to pass through the operating range when the w-ramp Open valve opens.
  • Page 70 Code list w-ramp Closed The time required to pass through the operating range when the valve closes. 0 to 240 s [0] Totaled double valve travel. Total valve travel 0 to 9999 [0] Can be reset to 0 via RES. subsequently 10E3-99E7 LV total valve travel Limit value of total valve travel.
  • Page 71 Code list Displaying or changing the software limit value A2 in relation to Limit value A2 the operating range. 0.0 to 100.0 [98.0] % of the operating range Alarm Test Testing the software limit switches alarm A1 and A2 in addition to the fault alarm contact A3.
  • Page 72 Code list Display special functions Fault alarm via display and fault alarm contact for special func- tions, e.g. zero calibration, initialization and position transmitter NO [YES] test (Code 31). Fault alarm via display and fault alarm contact when the limit Display total valve travel value for the total valve travel is exceeded.
  • Page 73 Code list Display only, blocked prior to initialization. y info After initialization: indicates the actuator pressure in %. [0] OP 0 to 100 % corresponds to the pressure range which adjusts the 0 to 100 % travel/angle range from 0 to 100 %. If the actuator pressure is 0 bar, e.g.
  • Page 74 Code list x > range The measuring span of the sensor is too low. • Pin positioned incorrectly. • Wrong lever. A rotational angle smaller than 11° at the positioner shaft creates just an alarm. An angle below 6° leads to the initialization being canceled.
  • Page 75 Code list The actuator transit times determined during the initialization are Transit time < so short that the positioner cannot adapt itself optimally. Remedy Check the volume restriction setting as described in section 5.2, re-initialize the positioner. Initialization was canceled because you are required to enter the Pin pos.
  • Page 76 Remedy Return the positioner to SAMSON AG for repair. w too small The reference variable is much smaller than 4 mA (0 %); occurs if the power source that drives the positioner does not comply with the standard.
  • Page 77 Additional message at the fault Valve moves to the fail-safe position. alarm contact! Remedy Return the positioner to SAMSON AG for repair. The hardware positioner is monitored by means of a test calcula- Test calculation tion.
  • Page 78 Remedy Confirm error, perform reset and re-initialize the positioner. Internal device error 1 Internal device error Remedy Return the positioner to SAMSON AG for repair. HART parameters Error in the HART parameters that are not critical for the control function.

  • Page 79: Dimensions In Mm

    Dimensions in mm Dimensions in mm or connecting plate Pressure gauge External bracket position sensor NAMUR attachment Lever mm S = 17 M = 50 L = 100 XL = 200 Direct attachment M20 x 1.5 Output (38) Supply (9) Attachment to rotary actuators VDI/VDE 3845 for all sizes of fixing level 2...
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  • Page 81: Test Certificates

    EB 8384-3 EN...
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  • Page 92 SAMSON AG · MESS- UND REGELTECHNIK Weismüllerstraße 3 · 60314 Frankfurt am Main · Germany Phone: + 49 69 4009-0 · Fax: +49 69 4009-1507 EB 8384-3 EN Internet: http://www.samson.de...

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