Samson 3374 Mounting And Operating Instructions
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Samson 3374 Mounting And Operating Instructions

Electric actuator three-point stepping version
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Electric Actuator
Type 3374
Three-point stepping version
Mounting and Operating
Instructions
EB 8331-3 EN
Edition September 2012

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Summary of Contents for Samson 3374

  • Page 1 Electric Actuator Type 3374 Three-point stepping version Mounting and Operating Instructions EB 8331-3 EN Edition September 2012...
  • Page 2 Definition of the signal words used in these mounting and operating instructions DANGER! NOTICE indicates a hazardous situation which, indicates a property damage mes- if not avoided, will result in death or sage. serious injury. Note:  WARNING! Supplementary explanations, informa- indicates a hazardous situation which, tion and tips if not avoided, could result in death or...

  • Page 3: Table Of Contents

    Contents General safety instructions ................5 Design and principle of operation ..............6 Additional equipment ..................6 Technical data ....................7 Installation ....................10 Mounting position ..................10 Attachment to the valve ................10 3.2.1 Construction with integrated yoke ..............10 3.2.2 Construction with ring nut ................10 Electrical connections ...................12 Manual override ..................14 Limit contacts ....................15 6.1...

  • Page 5: General Safety Instructions

    General safety instructions General safety instructions For your own safety, follow these instructions concerning the mounting, start up and opera- tion of the actuator: − The device is to be assembled, started up or operated only by trained and experienced per- sonnel familiar with the product.

  • Page 6: Design And Principle Of Operation

    2.1 Additional equipment eration The actuator can be equipped with limit con- tacts and/or resistance transmitters to influ- The Type 3374 Electric Actuator is used in in- ence the tasks of control equipment. Refer to dustrial plants as well as in heating, ventila- sections 6 and 7.

  • Page 7: Technical Data

    Design and principle of operation 2.2 Technical data Actuator Type 3374 Version with Yoke Ring nut Yoke Ring nut Yoke Ring nut Fail-safe action Without Stem extends Stem retracts Rated travel Transit time for rated travel Standard Fast in case of fail-safe action –...
  • Page 8 Design and principle of operation Actuator Type 3374 Version with Yoke Ring nut Yoke Ring nut Yoke Ring nut Fail-safe action Without Stem extends Stem retracts Manual override Hex wrench · Adjustment not possible after fail-safe action has been triggered Manual override of actuators with fail-safe action only possible...

  • Page 10: Installation

    Installation Installation larger: x = 90 mm) from the top of the yoke to the head of the stem connector nut (8) is achieved. Lock this position with 3.1 Mounting position the lock nut (9). Installation depends on the mounting position 3. Retract actuator stem using the manual of the valve. The actuator must not be sus- override.
  • Page 11 Installation Types 3374-10/-11/-21/-31 Types 3374-15/-26/-36 Connection with yoke Connection with ring nut Attachment to Series V2001 Valves, Attachment to Series 240 Valves Type 3260 (DN 65 to 150), Type 3214 (DN 65 to 100) Types 3374-15/-26/-36 Connection with ring nut Actuator Attachment to Type 3214 Valve (DN 125 to 250) 2.1 Actuator yoke 2.2 Valve yoke 2.3 Bonnet Actuator stem Stem connector Plug stem Ring nut Stem connector nut...

  • Page 12: Electrical Connections

    Electrical connections Electrical connections DANGER! − Upon installation of the electric ca- bles, you are required to observe the regulations concerning low- voltage installations according to DIN VDE 0100 as well as the regu- lations of your local power supplier. − Only connect the actuator to the mains power network when the pow- er is switched off.
  • Page 13 Electrical connections Retracts Extends – – – Magnet in version with fail-safe action Limit contacts (optional) Resistance transmitters (optional) Fig. 2: Terminal connections EB 8331-3 EN...

  • Page 14: Manual Override

    Manual override Manual override To operate the manual override, place a 4 mm hex wrench on the red actuator shaft located at the side of the housing. The hex wrench is included in the scope of delivery. It is attached to the bottom of the housing. Version with fail-safe action Manual override is only possible in actuators with fail-safe action when the power supply (terminals L and N) is connected.

  • Page 15: Limit Contacts

    Limit contacts Limit contacts Retrofit kits: 6.1 Retrofitting the limit con- tacts To install the limit contacts, the following retro- fit kits are required: Order no. 1400-8829 − Basic unit − Retrofit kit Order no. 1400-8830 When ordering, state the configuration ID (Var.-ID) and the type designation of the ac- tuator. Both specifications are written on the nameplate. Refer to section 9 on page 25. 1 Intermediate gear 4 Tension spring DANGER!

  • Page 16: Retrofitting (Without Resistance Transmitters)

    Limit contacts 6.1.1 Retrofitting (without re- tion of the actuator stem on the cam hold- er (20). sistance transmitters) 11. Push the cam holder with both contact 1. Unscrew screws on housing cover and cams onto the spindle 2 (11.2) corre- take the cover off the actuator.
  • Page 17 Limit contacts 11.1 11.2 Intermediate gear Spindle gear Serrated ring Tension spring Spacer 11.1 Spindle 1 11.2 Spindle 2 Actuator board Bearing bushing Terminal board Adjustment gear Contact cam Cam holder Fig. 5: Retrofitting the limit contacts EB 8331-3 EN...

  • Page 18: Retrofitting (When Resistance Transmitters Are Already Installed)

    Limit contacts 6.1.2 Retrofitting (when resis- tance transmitters are already installed) 1. Unscrew screws on housing cover and take the cover off the actuator. 2. Move the actuator stem to the end position depending on the fail-safe action "Actu- ator stem extends" or "Actuator stem re- tracts”. Refer to section 5.

  • Page 19: Adjusting The Limit Contacts

    Limit contacts 6.2 Adjusting the limit contacts 1. Unscrew screws on housing cover and take the cover off the actuator. 2. Connect power supply. 3. Use the motor or manual override to move the actuator stem to the point at which the contact should react.

  • Page 20: Resistance Transmitters

    Resistance transmitters Resistance transmitters serrated ring (6) and push it down as far as it will go. 7.1 Retrofitting the resistance 4. The resistance transmitter gears (22 and 23) fitted with serrated rings must be put transmitters onto their shafts to correspond with the An actuator board with corresponding resis- rated travel of the valve. The rated travel tance transmitters and gear wheels is required inscription 'A' for 30 mm rated travel or for resistance transmitter retrofit. Which actu- 'B' for 15 mm rated travel must be legible...
  • Page 21 Resistance transmitters 11.1 11.2 11.4 11.3 Intermediate gear Spindle gear Actuator board (seen from above): Serrated ring Tension spring Serrated ring Shim 11.1 Spindle 1 11.2 Spindle 2 11.3 Spindle 3 11.4 Spindle 4 Actuator board Bearing bushing Gear for potentiometer 1 Gear for potentiometer 2 Fig.

  • Page 22: Retrofitting (When Limit Contacts Are Already Installed)

    Resistance transmitters 7.1.2 Retrofitting (when limit 3. Unscrew fastening screws. Push the ac- tuator board (12) from its guiding to the contacts are already in- right. Remove the actuator board and re- stalled) place it with a board carrying resistance transmitters. 1. Unscrew screws on housing cover and 4.

  • Page 23: Calibrating The Resistance Transmitters

    Resistance transmitters 7.2 Calibrating the resistance Zero calibration transmitters 1. Use the motor or manual override to move the valve to the desired end position. The gears of the potentiometers (22) and (23) 2. Use a screwdriver to adjust the potentiom- must be put onto their shafts to correspond eter shafts (22.1) and (23.1).

  • Page 24: Dimensions In Mm

    Dimensions in mm Dimensions in mm Types 3374-10/-11/-21/-31 Connection with yoke Types 3374-15/-26/-36 Connection with ring nut Fig. 10: Dimensions in mm EB 8331-3 EN...

  • Page 25: Nameplate

    Nameplate Nameplate Configuration ID (Var.-ID) SAMSON 3374-15 Serial number Elektrischer Antrieb Electric Actuator Typetesting Servomoteur électrique Power supply Var-ID Serial no. Power consumption Power line frequency Nominal transit time Stroking speed Actuating force (stem retracts) Digital positioner Firmware V 0(4)...20 mA DC; R =50 10 Actuating force (stem extends) 0(2)...10 V DC;...

  • Page 26: Appendix

    Appendix 11 Appendix Table 1: Actuator boards (order number 1180-96xx) available for retrofitting resistance transmitters Type 3374 60 s – 1180-9604 – 1180-9610 230 V/50 Hz 120 s 1180-9604 1180-9601 1180-9604 1180-9607 240 s 1180-9601 – 1180-0901 – 120 s – 1180-9637 –...
  • Page 27 Appendix EB 8331-3 EN...
  • Page 28 SAMSON AG · MESS- UND REGELTECHNIK Weismüllerstraße 3 · 60314 Frankfurt am Main · Germany Phone: +49 69 4009-0 · Fax: +49 69 4009-1507 EB 8331-3 EN Internet: http://www.samson.de...

This manual is also suitable for:

3374-103374-113374-153374-263374-213374-31 ... Show all

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