rotork LA-2500 Series Instruction Manual
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rotork LA-2500 Series Instruction Manual

Linear actuators
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LA-2500
Series
Instruction Manual
Linear Actuators
Redefining Flow Control

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Summary of Contents for rotork LA-2500 Series

  • Page 1 LA-2500 Series Instruction Manual Linear Actuators Redefining Flow Control...

  • Page 2: Table Of Contents

    Contents Section Page General Information Product Specifications Installation Typical Wiring Diagram Start-up and Calibration LA-2520-D Amplifier Setup and Calibration HART Calibration HART Setup Information Troubleshooting Guide Repair and Maintenance Parts Identification Major Dimensions Hazardous Locations THIS MANUAL CONTAINS IMPORTANT SAFETY FAILURE TO PROPERLY WIRE TORQUE/THRUST INFORMATION.

  • Page 3: General Information

    General Information INTRODUCTION WARNING - ELECTROSTATIC DISCHARGE Rotork Controls designs, manufactures, and tests its products This electronic control is static-sensitive. To protect the to meet many national and international standards. For these internal components from damage, never touch the products to operate within their normal specifications, they printed circuit cards without using electrostatic discharge must be properly installed and maintained.

  • Page 4: Identification Label

    General Information IDENTIFICATION LABEL GENERAL ACTUATOR DESCRIPTION The LA-2520 series actuators are electrically operated, bi- directional linear devices. They are designed for strokes to 24 inches (610 mm) and thrusts to 1,600 lbf (7117 N) and include WARNING: MODEL: a manual override handwheel. The drive motor may be single * MORE THAN ONE LIVE CIRCUIT.

  • Page 5: Product Specifications

    LA-2500 Series Product Specifications GENERAL SPECIFICATIONS ELECTRICAL SPECIFICATIONS Speed / Thrust: inches per sec. (mm) / lbf. (N) Power Requirements 0.45/800 (11/3558) Current (Amps) Actuator Input Power 0.9/800 (23/3558) Model Volts/Phase/Hz Stall 0.9/1200 (23/5338) 0.9/1600 (23/7117) 240/480/3/50/60 3/1.5 7.5/3.75 LA-2510-N...

  • Page 6: Installation

    Troubleshooting Guide included in this manual. chance of the actuator to coast upon removal of power. The If the problem persists, contact a Rotork Controls service drag brake is factory pre-set and requires no adjustment. The representative for further assistance.

  • Page 7: Electrical Installation

    ELECTRICAL INSTALLATION To maintain the NEMA 4 and Explosion Proof rating of the The LA-2500 series actuator is typically provided with a actuator, insure that proper conduit connections are used. single phase or three phase reversible electric motor. Check...

  • Page 8: Typical Wiring Diagram

    Typical Wiring Diagram TYPICAL SWITCH CONFIGURATION LA–2500 / AD–8140 COOLING LIGHT–OFF FIRING AD–8140 NOTES: EARTH GROUND DIGITAL AMP SOURCE COMMON WARNING! (NOTE 4) CURRENT COMMAND INPUT (NOTE 2) RETRACTED EXTENDED 1) INPUT POWER HART SIGNAL (NOTE 3) AD–8140 2) COMMAND: HART 3) HART SIGNAL MODULE...
  • Page 9 Typical Wiring Diagram NOTES: REF: All rotation notes are viewed facing output shaft. WARNING! Before applying input power, check for proper selection of slide switch SW1. Operating voltage changes cannot be made simply by changing the position of the amplifier voltage switch. Motor and capacitor must be changed as well.

  • Page 10: Typical Wiring Diagrams

    Typical Wiring Diagram TYPICAL WIRING DIAGRAMS LA-2520-N LA-2510-N SERIES ACTUATOR 3 PHASE 3 PHASE ac LINE ac LINE POWER POWER Due to wide variations in terminal numbering of actuator products, actual Customer Supplied wiring should follow the print Forward / Reversing Starter supplied with the actuator.

  • Page 11: Start-Up And Calibration

    Start-up and Calibration POSITION LIMIT SWITCH ADJUSTMENT WITH 4. Loosen the locknut and manually rotate the screw until POTENTIOMETER it pushes against the limit switch, producing an audible “click.” Re-tighten the locknut with moderate force to This limit switch assembly features two independently lock the screw in position.
  • Page 12 Start-up and Calibration TWO (2), FOUR (4), OR SIX (6) OPTIONAL HEAVY DUTY POTENTIOMETER ALIGNMENT LIMIT SWITCHES If an optional single or tandem potentiometer is included This limit switch assembly features two, four, or six with the unit, follow these instructions. independently adjustable limit switches.

  • Page 13: La-2520-D Amplifier Setup And Calibration

    LA-2520-D Internal Amplifier Start-up and Calibration Refer to diagram on previous page. C) Set the command signal to highest level, normally 20 mA. 1) Power. Before applying AC power to TB2 set slide switch to the correct voltage (120/240 VAC). See input signal. D) Adjust HI setpoint (SPAN) by holding SPAN push Ensure dip switch setting meets installation requirements.

  • Page 14: Hart Calibration

    LA-2520-D Internal Amplifier Start-up and Calibration 6) Deadband. This adjustment establishes the actuator 8) AC incremental control (manual control). A break in servo sensitivity. It is factory set at 1% and should not be command signal is required when using AC Incremental field adjusted.

  • Page 15: Hart Setup Information

    HART Setup Information HART Command Set - Universal Commands COMMAND DATA IN COMMAND DATA IN REPLY Nbr. Function Byte Function Byte Function Read Unique Identifier None “254” (expansion) manufacturer identification code manufacturer’s device type code number of preambles universal command revision transmitter specific command revision software revision hardware revision...
  • Page 16 HART Setup Information HART Command Set - Common Practice Commands COMMAND DATA IN COMMAND DATA IN REPLY Nbr. Function Byte Function Byte Function Set Upper Range None None Set Lower Range None None Reset Configuration None None Changed Flag Perform Self Test None None Read additional transmitter status...

  • Page 17: Troubleshooting Guide

    Troubleshooting Guide TROUBLE POSSIBLE CAUSE REMEDY a. No power to actuator a. Check source, fuses, wiring b. Let motor cool and determine why overheating b. Motor overheated and internal thermal switch occurred (such as, excessive duty cycle or ambient tripped (single phase AC motors only) temperature) c.
  • Page 18 Troubleshooting Guide TROUBLE POSSIBLE CAUSE REMEDY a. Thrust limit switch not properly wired to a. Correct wiring per diagram control circuit b. Thrust limit switch collars loose or not properly b. Adjust and tighten collars as required adjusted c. Thrust limit switch defective c.

  • Page 19: Repair And Maintenance

    Repair and Maintenance HOUSING SEPARATION MOTOR REPLACEMENT 1. Loosen the 12 cover screws and remove the feedback 1. Perform steps 1 through 6 of the Housing Separation cover assembly. procedure. 2. Locate all motor wires. Record the wire numbers and 2.
  • Page 20 Repair and Maintenance SCREW SHAFT TRAVEL NUT REPLACEMENT SCREW SHAFT OR SCREW SHAFT BEARING REPLACEMENT 1. Perform steps 1 through 6 of the Housing Separation procedure. 1. Perform steps 1 through 4 of the Screw Shaft Travel Nut Replacement procedure. 2.

  • Page 21: Limit Switch Replacement

    Repair and Maintenance GEAR REPLACEMENT AND COMPLETE LIMIT SWITCH POTENTIOMETER REPLACEMENT ASSY REPLACEMENT 1. Ten Turn Feedback 1. Perform steps 1 through 6 of the Housing Separation A. Prior to removing the potentiometer, manually procedure. position the actuator to the full retract position. The 2.
  • Page 22 Repair and Maintenance THRUST LIMIT SWITCH REPLACEMENT M. Electrically or manually position the actuator to the full extend position. Monitor the feedback 1. Remove the terminal bracket assembly. potentiometer with an Ohm meter. Do not allow the 2. Remove the three screws which hold the thrust limit front clevis to rotate.

  • Page 23: Parts Identification

    Parts Identification SCALE 3:8 ITEM NO. DESCRIPTION PART NUMBER QTY. Retaining Ring 58B-014183-031 Handcrank 61A-024164-001 Spring 20A-012308-001 Thrust Washer (Steel) 56B-004107-008 Thrust Washer (Bronze) 56B-004107-007 Seal 19B-003815-030 Captive Screw 54A-033354-001 Lockwasher 56A-015220-002 Bushing 18B-SP1988-035 Handcrank Shaft 62A-024163-002 61B-010954-110 Dowel Pin 57A-015206-075 Redefining Flow Control...
  • Page 24 Parts Identification...
  • Page 25 Parts Identification ITEM NO. DESCRIPTION PART NUMBER QTY. Retaining; Outer Tube 61A-024170-001 Lockwasher 56A-015211-001 Bolt 1/4"-20 X 3/4" 54A-015060-075 Front Clevis; .88" Pin Hole 60A-015928-001 Front Clevis; .75" Pin Hole 60A-015928-003 Front Clevis O-Ring 74B-010957-024 Outer Tube 6" 61B-030906-001 Outer Tube 12" A Option 61B-030906-002 Outer Tube 12"...
  • Page 26 Parts Identification ITEM NO. DESCRIPTION PART NUMBER QTY. Bearing 17B-003813-033 Belleville Washers/Spacer Consult Factory Belleville Washer 56B-010462-021 Bolt 3/8"-16 x 1" 54A-015081-100 Gasket; Rear Clevis 13D-009727-004 Rear Clevis; .88 Dia. Hole 61A-030917-002 Rear Clevis; .75 Dia. Hole 61A-030917-003 Lockwasher 56A-015211-001 Bolt 1/4"-20 x 1 1/2"...
  • Page 27 Parts Identification ITEM NO. DESCRIPTION PART NUMBER QTY. Bushing 18B-SP1988-024 Bushing 18B-SP1988-025 Bushing 18B-SP1988-006 2nd Stage F.B. Gear Assembly 6" 65A-024172-003 2nd Stage F.B. Gear Assembly 12" A; B; C & D 65A-024172-001 2nd Stage F.B. Gear Assembly 18" & 24" 65A-024172-002 1st Stage F.B.
  • Page 28 Parts Identification...
  • Page 29 Parts Identification ITEM NO. DESCRIPTION PART NUMBER QTY. Cam Adaptor Assembly 68C-021664-001 Switch Actuating Assembly AC Units 68B-021658-001 Switch Shaft; 6 Switches 62B-024188-003 Anchor Shaft; 6 Switches 62A-021667-004 Woodruff Key 61A-033186-001 Set Screw # 10 - 24x1/4" 54A-015047-025 Gear; Limit Switch Assembly 6" 16A-030911-001 Gear;...
  • Page 30 Parts Identification...
  • Page 31 Parts Identification ITEM NO. DESCRIPTION PART NUMBER QTY. Spring 20A-012010-001 Collar 61A-013746-001 Set Screw 10-24 x 3/16 54A-015047-019 Shaft 62A-016133-001 Spacer 61A-010031-001 Switch Activater 14A-009192-001 Rivet 58B-024244-080 Frame 60B-016247-001 Insulater 32A-013376-001 Switch 46A-010016-003 Screw #6-32 x 1" 54A-015023-100 Screw #8-32 x 3/8" 58B-024244-338 Lockwasher 56A-015190-002...
  • Page 32 Parts Identification ITEM NO. DESCRIPTION PART NUMBER QTY. Electrical Cover 60C-030892-001 O-Ring 74A-035940-001 Feedback Housing Consult Factory Motor Housing Consult Factory Gasket 13C-030909-001 Lockwasher 5/16" 56A-015221-001 Bolt 5/16 - 18 x 1 1/2" 54A-015070-150 Handcrank Shaft 62A-024163-002 61B-010954-110 Dowel Pin 57A-015206-075...

  • Page 33: Major Dimensions

    Major Dimensions Redefining Flow Control...

  • Page 34: Hazardous Locations

    Hazardous Locations NOTE: This section covers actuator installation in IDENTIFICATION LABEL Hazardous locations. All guidelines must be followed An identification label is attached to each actuator. When except when specifically noted. ordering parts, requesting information or service assistance, please provide all of the label information. WARNING - SHOCK HAZARD •...

  • Page 35: Maintenance

    SAE-10 or 20 NON-DETERGENT oil. Re-lubricate CE Compliant Actuators when repairs are made. LA-2500 series actuators ordered as CE actuators will be supplied with a Document of Incorporation (DOI). The DOI indicates compliance to CE and that the actuator can be used in equipment that will be CE certified based on the application.
  • Page 36 Hazardous Locations In accordance with Clause 5.1 of IEC EN60079-1, the critical dimensions of the flame paths are: MAXIMUM GAP MINIMUM GAP inches inches Hand Crank Casting/Shaft -0.0005 -0.01 -0.0025 -0.06 Hand Crank Shaft/Bushing 0.0040 0.10 0.0020 0.05 Feedback Shaft Casting/Bushing (Single Turn) -0.0010 -0.03 -0.0030...
  • Page 37 Notes Redefining Flow Control...
  • Page 38 Notes...
  • Page 39 Notes Redefining Flow Control...
  • Page 40 As part of a process of on-going product development, Rotork reserves the right to amend and change specifications without prior notice. Published data may be subject to change. For the very latest version release, visit our website at www.rotork.com PUB045-004-00 The name Rotork is a registered trademark.

This manual is also suitable for:

La-2510-nLa-2520-dLa-2520-eLa-2520-n

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