Samson 3274 Mounting And Operating Instructions
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Samson 3274 Mounting And Operating Instructions

Electrohydraulic actuator
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EB 8340 EN
Translation of original instructions
Type 3274 Electrohydraulic Actuator
Edition March 2020

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Summary of Contents for Samson 3274

  • Page 1 EB 8340 EN Translation of original instructions Type 3274 Electrohydraulic Actuator Edition March 2020...
  • Page 2 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. The images shown in these instructions are for illustration purposes only. The actual product may vary.

  • Page 3: Table Of Contents

    Contents Safety instructions and measures ..............1-1 Notes on possible severe personal injury ............1-4 Notes on possible personal injury ..............1-5 Notes on possible property damage .............1-6 Markings on the device ................2-1 Nameplate ....................2-1 Design and principle of operation ...............3-1 Fail-safe action ...................3-1 Versions .....................3-3 Additional equipment ..................3-3 3.3.1...
  • Page 4 Three-step control ..................8-1 Positioner ....................8-1 Manual mode .....................8-1 Malfunctions ....................9-1 Emergency action ..................9-1 Servicing....................10-1 Decommissioning ..................11-1 Removal ....................12-1 Repairs ....................13-1 13.1 Returning the actuator to SAMSON ............13-1 Disposal ....................14-1 Certificates ....................15-1 Annex......................16-1 16.1 Parts for retrofitting and accessories ............16-1 16.2 After-sales service ..................16-2 EB 8340 EN...

  • Page 5: Safety Instructions And Measures

    In case operators intend to use the actuator in other applications or conditions than specified, 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.
  • Page 6 Î Observe the requirements for personal protective equipment specified in the valve docu- mentation. Î Check with the plant operator for details on further protective equipment. Revisions and other modifications Revisions, conversions or other modifications 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 The limit switches automatically switch off the motor in the end positions. In actuators with fail-safe action, the actuator stem moves to a defined end position upon supply voltage fail- ure. The fail-safe action of SAMSON actuators is specified on the actuator nameplate.
  • Page 7 Î For wiring, maintenance and repair, observe the relevant safety regulations. Referenced documentation The following documents apply in addition to these mounting and operating instructions: − Mounting and operating instructions of the valve (e.g. for SAMSON valves) on which the electrohydraulic actuator is mounted u EB 5861 for Type 3260 Three-way Valve u EB 5868-1 for Type 3214 Globe Valve balanced by a diaphragm...

  • Page 8: Notes On Possible Severe Personal Injury

    Safety instructions and measures 1.1 Notes on possible severe personal injury DANGER Risk of fatal injury due to electric shock. Î Before connecting wiring, performing any work on the device or opening the de- vice, disconnect the supply voltage and protect it against unintentional reconnec- tion. Î Only use power interruption devices that can be protected against unintentional reconnection of the power supply.

  • Page 9: Notes On Possible Personal Injury

    Safety instructions and measures 1.2 Notes on possible personal injury WARNING Crush hazard arising from moving parts. The electrohydraulic actuator contains moving parts (actuator and plug stems), which can injure hands or fingers if inserted into the actuator. Î Do not insert hands or finger into the yoke while the valve is in operation. Î Disconnect the supply voltage and protect it against unintentional reconnection be- fore performing any work on the control valve.

  • Page 10: Notes On Possible Property Damage

    NOTICE Risk of damage to the electrohydraulic actuator due to the supply voltage exceeding the permissible tolerances. The Type 3274 Electrohydraulic Actuator is designed for use according to regulations for low-voltage installations. Î Observe the permissible tolerances of the supply voltage. Risk of electrohydraulic actuator damage due to excessively high tightening torques.

  • Page 11: Markings On The Device

    Markings on the device 2 Markings on the device 2.1 Nameplate 3274 Model 3274- Var.-ID elektr. Stellantrieb 0 0 6 2 Electric actuator Servomoteur électrique Travel Course mm/s Eingang 0 (4)...20 mA Input 0 (2)...10 V Entrée Made in Germany inductive Hall, 4...20 mA out...
  • Page 12 EB 8340 EN...

  • Page 13: Design And Principle Of Operation

    (TÜV) according to The oil pump (6.2) driven by the motor (6.1) DIN EN 14597 in combination with various feeds compressed oil to the corresponding SAMSON valves (registration number on re- cylinder chamber over the check valve (6.3) quest). and pilot valve (6.4). The solenoid valves are...
  • Page 14 Design and principle of operation Actuator housing with oil reservoir Cylinder housing Terminal compartment Cylinder Piston Stem connector Actuator stem Compression spring Compression spring Motor Gear pump Check valve Pilot valve Fig. 3-1: Design and principle of operation EB 8340 EN...

  • Page 15: Versions

    Optionally, the actuators can be equipped with two limit contacts, which are actuated by continuously adjustable cam disks. The Note floating contacts can be used as either make The Types 3274-11, -12, -15 and -16 or break contacts to influence the tasks of Actuators as well as the version with 110 V control equipment. supply voltage described in this document...

  • Page 16: Combination Of Options

    Design and principle of operation 3.3.1 Combination of options Inductive limit contacts Optionally, the actuator can be equipped The actuator can be fitted with the following with a maximum of two inductive contacts. options: They are no-wear NC contacts, which are used to influence the tasks of control equip- Table 3-1: Combination of options ment. Isolating switch amplifiers according to Accessories EN 50227 must be installed in the output cir- •...

  • Page 17: Priority Circuit (Version With Positioner)

    Design and principle of operation 3.4 Priority circuit (version with positioner) 100% < > >> Actuator stem retracted The actuator stem moves to a defined end position after the terminals 82 and 83 in the Travel priority circuit are switched. After the con- Actuator stem extended nection is interrupted, the actuator stem fol- lows the control signal.

  • Page 18: Technical Data

    Design and principle of operation 3.8 Technical data Actuator Type 3274 Handwheel Electric Mechanical Electric Fail-safe action Without Without With Direction of action: stem re- – – • tracts Direction of action: stem • – – • extends Rated travel 15 or 30 mm Transit time for rated travel 60 s with 15 mm travel · 120 s with 30 mm travel...
  • Page 19 Design and principle of operation Thrust in N Retracts 4300 4300 2100 1800 Travel: 15 mm Extends 4300 7700 4300 7700 2000 2300 3400 Retracts 4300 2100 2100 1800 Travel: 30 mm Extends 4300 7300 1800 7300 1800 2100 3000 Accessories Positioner Same supply voltage as actuator Input signal 0/4 to 20 mA, (R...
  • Page 20 Design and principle of operation Fine-wire fuse Î Contact SAMSON's after-sales service (aftersalesservice@samsongroup.com) if you re- quire them. Actuators with 120 s transit time at 30 mm travel Supply voltage Type of fine-wire fuse 230 V, 50/60 Hz T1L (1 A slow-acting) Actuators with 60 s transit time at 30 mm travel (with faster motor) Supply voltage Type of fine-wire fuse 230 V, 50/60 Hz T1.25 (1.25 A slow-acting) 24 V, 50/60 Hz T6.3 (6.3 A slow-acting) EB 8340 EN...

  • Page 21: Dimensions

    Design and principle of operation 3.9 Dimensions Dimensions in mm ≥300 Ø11.5 M30 x 1.5 Ø16 Fig. 3-3: Actuator with mechanical override EB 8340 EN...
  • Page 22 Design and principle of operation Dimensions in mm ≥300 Ø11.5 M30 x 1.5 Ø16 Fig. 3-4: Actuator with electric override 3-10 EB 8340 EN...

  • Page 23: Shipment And On-Site Transport

    Î Observe the storage instructions. damage. Report any damage to SAM- Î Avoid long storage times. SON and the forwarding agent (refer to Î Contact SAMSON in case of different delivery note). storage conditions or longer storage times. 4.2 Removing the packaging...
  • Page 24 − Do not place any objects on the electro- hydraulic actuator. EB 8340 EN...

  • Page 25: Installation

    Installation 5 Installation The work described in this section is only to be performed by personnel appropriately quali- fied to carry out such tasks. 5.1 Installation conditions Work position If not described otherwise in the valve documentation, the work position for the control valve is the front view looking onto the operating controls. Mounting orientation The actuator can be installed in any position.
  • Page 26 Installation Any mounting Restriction apply to actuators with position possible: mechanical override (Type 3274- 15/-16/-17/-18): Fig. 5-1: Permissible/impermissible mounting positions of Type 3274 Actuator EB 8340 EN...

  • Page 27: Preparation For Installation

    5.3 Mounting the actuator 5. Place the actuator onto the valve bonnet Proceed as follows if the valve and actuator and secure using the ring nut (8.1). have not been assembled by SAMSON, pro- Tightening torque 150 Nm ceed as follows (Fig. 5-2): 6. Push the plug stem (9.5) upward. Con- Î...
  • Page 28 Installation DN 100 to 150 (Series 240, 250 and 280, 3. Fasten the stem connector nut (9.3) and 40 to 160) actuator stem (5.6) to the stem connector clamps (8.2). 1. Check dimension x = 90 mm. If neces- sary, readjust by turning the stem con- 4. Move the actuator stem to the lower end nector nut (9.3).

  • Page 29: Retrofitting Limit Contacts

    Installation 5.4 Retrofitting limit contacts Mounting the mechanical limit contact 1. Install the switch carrier. To install the limit contacts, the following ret- 2. Mount the contact cam and fasten with rofit parts are required depending on the the hexagonal wrench included in the equipment: delivery. − Basic unit: order no. 1690-1201 3.
  • Page 30 Installation Shaft Gear wheel Cap screw Gear rack Potentiometer carrier Fig. 5-3: Basic unit (1690-1201) EB 8340 EN...
  • Page 31 Installation Motor electronics and Motor electronics positioner Limit contact 1, 2, 3 Potentiometer 2 Potentiometer 1 Terminal compartment with electric accessories Fig. 5-4: Terminal compartment with the housing cover removed EB 8340 EN...

  • Page 32: Installing The Resistance Transmitters

    Installation 5.5 Installing the resistance 7. Adjust potentiometer as described in the 'Start-up' section. transmitters 8. Mount the locking spring of the potenti- To install a resistance transmitter, the follow- ometer. ing retrofit parts are required depending on 9. Refasten the side housing cover. the equipment: − Basic unit: order no. 1690-1201 5.6 Using the positioner as a − Resistance transmitter 1:...

  • Page 33: Electrical Connection

    Installation 5.7 Electrical connection How to proceed: Î Unscrew and remove the side housing cover. Guide the cables through the ca- DANGER ble glands on the housing to the termi- Risk of fatal injury due to electric shock. nals and connect them (see Fig. 5-5 to Î Upon installation of the electric cables, Fig. 5-7 or circuit diagram stuck inside you are required to observe the regula- the housing cover).
  • Page 34 Resistance transmitter (position feedback) Controller External switch (e.g. STM) to trigger safety function in Type 3274-2x 3274-13,-14,-17,-18,-22 3274-11...-18,-21,-23 Î A controller output which issues the eL and aL signals must only be supplied over terminal 81 (internal supply voltage of the actuator).
  • Page 35 (0)2...10 V (0)2...10 V External switch (e.g. STM) to Input Output trigger safety function in control (position feedback) Type 3274-2x signal 3274-13,-14,-17,-18,-22 3274-11...-18,-21,-23 Î Jumper terminals 31 and 32 when a 0/2 to 10 V voltage signal is used as position feedback. Fig. 5-6: Electrical connection for version with positioner EB 8340 EN 5-11...
  • Page 36 (0)4...20 mA – Controller (0)2...10 V Output External switch (e.g. STM) to (position feedback) trigger safety function in Type 3274-2x 3274-13,-14,-17,-18,-22 3274-11...-18,-21,-23 Î Jumper terminals 31 and 32 when a 0/2 to 10 V voltage signal is used as position feedback. Fig. 5-7: Electrical connection for three-step version with position transmitter 5-12 EB 8340 EN...

  • Page 37: Operation

    Operation 6 Operation 6.1 Device overview and operating controls Pushbutton Fig. 6-1: Operating controls of the electric override Electromagnetic release Hex nut Fig. 6-2: Operating controls of the mechanical override EB 8340 EN...

  • Page 38: Manual Override

    Operation 6.2 Manual override Red marking pin Disconnect the isolating terminal 81 to make Release button the actuator remain in the adjusted position after the manual override is activated. Version with electric override Fig. 6-3: Isolating terminal 81 The actuator stem in the actuator version with electric override can be moved by pressing the keys on the housing cover (see the 'Operation' section).

  • Page 39: Adjusters And Slider Switches

    Operation 6.3 Adjusters and slider switches Adjusters and slider switches are located underneath the side housing cover in the actuator version with positioner. Adjusters Slider switch Zero Span Span Starting point (zero) Upper range value (span) Position feedback (output signal) Fig. 6-5: Adjusters and slider switches NOTICE Risk of actuator damage through opening the device.
  • Page 40 EB 8340 EN...

  • Page 41: Start-Up

    Start-up 7 Start-up The work described in this section is only to be performed by personnel appropriately quali- fied to carry out such tasks. 7.1 Three-step version No measures are required to start up actuator versions with three-step control. 7.2 Calibrating the positioner Set the adjusters and slider switches. DANGER Risk of electric shock from exposed live parts.
  • Page 42 Start-up The following functions can be adjusted with the slider switches SW1 to SW4: Table 7-1: Switch positions and their meaning Priority operation for actuator stem retracts Priority operation for actuator stem extends Direction of action increasing/decreasing (<>) Direction of action increasing/increasing (>>) Position feedback signal 4 to 20 mA/2 to 10 V Position feedback signal 0 to 20 mA/0 to 10 V SW1: Priority circuit The slider switch SW1 is used to set the direction of the priority circuit to increasing/increas- ing (>>) or increasing/decreasing (<>).
  • Page 43 Start-up Settings for direction of action increasing/increasing (>>) and increasing/decreasing (<>): 1. Disconnect isolating terminal 81: Red marking pin Release button 2. Move the actuator stem to the lower end position. Actuators with electric override: press button (arrow symbol). Actuators with mechanical override: use a wrench. 3. Position the segment gear S1 with the corresponding arrow tip depending on the valve rated travel (15 or 30 mm) pointing towards the axis of the potentiometer P1: Segment for 15 mm travel Segment for 30 mm travel...
  • Page 44 Start-up Zero Span Span 3. Slowly turn the 'Zero in' adjuster clockwise until the LED turns off. Turn it slightly further until the LED lights up again. 4. Use the override to move the valve to the top end position (retract the actuator stem). 5.
  • Page 45 Start-up Calibration for direction of action increasing/decreasing (<>): 1. Set slider switch SW2 to ON. 2. Turn 'Zero in' adjuster clockwise as far as it will go: Zero Span Span 3. Set the input signal to 0 V or 0 mA. 4. Slowly turn the 'Zero in' adjuster clockwise until the LED turns off. Turn it slightly further until the LED lights up again.

  • Page 46: Calibrating The Position Transmitter

    Start-up 7.3 Calibrating the position transmitter 1. Set the slider switches SW3 and SW4 depending on the required position feedback sig- nal (see Table 7-1): SW3 and SW4 to ON: 4 to 20 mA/2 to 10 V SW3 and SW4 to OFF: 0 to 20 mA/0 to 10 V 2. Connect an ammeter to terminals 31 (+) and 32 (–) or a voltmeter to terminals 32 (–) and 33 (+) (in this case, after jumpering the terminals 31 and 32).

  • Page 47: Adjusting The Limit Contacts

    Start-up 7.4 Adjusting the limit contacts A limit contact consists of a changeover switch, which changes its switching position when a contact cam presses the switch downward. Turning the contact cam to continuously adjust the switching range over the travel range as required. Mechanical limit contact: 1.

  • Page 48: Adjusting The Resistance Transmitter

    Start-up 7.5 Adjusting the resistance transmitter The actuator can be equipped with two resistance transmitters at the maximum. Potentiometer P1 is required for internal position feedback in actuators with positioner or position transmit- ter. Therefore, external position feedback cannot be used in this case. Potentiometer P1: 1.

  • Page 49: Operation

    8 Operation 8.3 Manual mode Electric override 8.1 Three-step control (Types 3274-11 to -14, -22 and -23) The actuator stem of the version with three- The actuator stem can be retracted or ex- step signal is moved in the corresponding di-...
  • Page 50 Operation The control signal is disconnected from the actuator and the valve can be moved to the desired position by using the two IN and OUT pushbuttons. The valve remains in this position. If the controller signal is to have priority again, proceed as follow: 1.
  • Page 51 Operation Tamper-proof seal Motor electronics Adjuster for version with positioner Gear segment Slide rod Release button Marking pin Isolating terminal Pushbutton (extend the actuator stem) 10 Pushbutton (retract the actuator stem) 11 Resistance transmitters 12 Limit contact(s) 13 Slider switch for version with positioner Connect isolating...
  • Page 52 EB 8340 EN...

  • Page 53: Malfunctions

    Malfunctions 9 Malfunctions Î Troubleshooting (see Table 9-1). Note Contact SAMSON's After-sales Service for malfunctions not listed in the table. Table 9-1: Troubleshooting Error Possible reasons Recommended action Actuator stem does not move. Actuator is blocked. Î Check attachment. Î Remove the blockage.
  • Page 54 EB 8340 EN...

  • Page 55: Servicing

    Servicing 10 Servicing Note The electrohydraulic actuator was checked by SAMSON before it left the factory. − The product warranty becomes void if service or repair work not described in these instructions is performed without prior agreement by SAMSON's After-sales Service.
  • Page 56 10-2 EB 8340 EN...

  • Page 57: Decommissioning

    Decommissioning 11 Decommissioning To decommission the electrohydraulic actua- tor for repair work or disassembly, proceed The work described in this section is only to as follows: be performed by personnel appropriately Î Put the control valve out of operation (see qualified to carry out such tasks.
  • Page 58 11-2 EB 8340 EN...

  • Page 59: Removal

    Removal 12 Removal Actuator with fail-safe action 1. Make sure that a signal from the control- The work described in this section is only to ler cannot act upon the actuator. If neces- be performed by personnel appropriately sary, disconnect the wires connecting the qualified to carry out such tasks.
  • Page 60 12-2 EB 8340 EN...

  • Page 61: Repairs

    Risk of actuator damage due to incorrect service or repair work. Î Do not perform any repair work on your own. Î Contact SAMSON's After-sales Service. 13.1 Returning the actuator to SAMSON Defective actuators can be returned to SAMSON for examination.
  • Page 62 13-2 EB 8340 EN...

  • Page 63: Disposal

    Disposal 14 Disposal We are registered with the German national register for waste electric equipment (stiftung ear) as a producer of electrical and electronic equipment, WEEE reg. no.: DE 62194439 Î Observe local, national and internation- al refuse regulations. Î Do not dispose of components, lubricants and hazardous substances together with your other household waste.
  • Page 64 14-2 EB 8340 EN...

  • Page 65: Certificates

    Certificates 15 Certificates The following certificate is shown on the next page: − EU declaration of conformity The certificate shown was up to date at the time of publishing. The latest certificate can be found on our website at: u www.samsongroup.com > Products & Applications > Product selector > Actuators > 3274 EB 8340 EN 15-1...
  • Page 66 Certificates EU declaration of conformity 15-2 EB 8340 EN...

  • Page 67: Annex

    Annex 16 Annex 16.1 Parts for retrofitting and accessories Parts for retrofitting Basic unit for position feedback Order no. 1690-1201 Gear segment Order no. 1690-1202 Resistance transmitter 1 Order no. 1690-1204 Resistance transmitter 2 Order no. 1690-1205 Limit contact Order no. 1690-1206 Switch carrier Order no. 1690-1203 Positioner On request Position transmitter On request Accessories Stem connector nut (for valve DN 15 to 80)

  • Page 68: After-Sales Service

    E-mail address You can reach our after-sales service at aftersalesservice@samsongroup.com. Addresses of SAMSON AG and its subsid- iaries The addresses of SAMSON, its subsidiaries, representatives and service facilities world- wide can be found on our website (u www.samsongroup.com) or in all SAMSON product catalogs. Required specifications Please submit the following details: − Type...
  • Page 72 EB 8340 EN SAMSON AKTIENGESELLSCHAFT Weismüllerstraße 3 · 60314 Frankfurt am Main, Germany Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 samson@samsongroup.com · www.samsongroup.com...

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