Bray 70 Series Operation And Maintenance Manual
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Bray 70 Series Operation And Maintenance Manual

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SERIES 70
2ND GENERATION ELECTRIC ACTUATOR
OPERATION AND MAINTENANCE MANUAL

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  • Page 1 SERIES 70 2ND GENERATION ELECTRIC ACTUATOR OPERATION AND MAINTENANCE MANUAL...

  • Page 3: Table Of Contents

    Size electric 180 ( ) ........26 exploded view and partS liSt of houSing Size gear box for information on thiS product and other bray productS - www.bray.com pleaSe viSit uS at our web page...
  • Page 4 BRAY Series 70 Electric Actuator Operation and Maintenance Manual afeTy nsTruCTiOns efiniTiOn Of erms read and fOllOW THese insTruCTiOns saVe THese insTruCTiOns indicates a potentially hazardous situation which, if not avoided, could result WARNING in death or serious injury. indicates a potentially hazardous situation which, if not avoided, may result in CAUTION minor or moderate injury.

  • Page 5: Introduction

    Bray Series 70 is a quarter turn electric actuator with Torque switches installed by Bray are factory adjusted to the manual override for use on any quarter turn valve requiring output torque rating of the unit using electronic torque testing up to 18000 in lb of torque.

  • Page 6: Manual Override Operation

    Actuators are not weatherproof until properly installed on to align the bolt patterns. the valve or prepared for storage. Bray cannot accept re- Install the furnished mounting studs by threading them sponsibility for deterioration caused on-site once the cover all the way into the actuator base.
  • Page 7 BRAY Series 70 Electric Actuator Operation and Maintenance Manual NOTICE CAUTION The conduit connections must be properly sealed to main- Do not reverse motor instantaneously when it is still running. tain the weatherproof integrity of the actuator enclosure. Reversing direction to actuator motor when it is running can cause damage to motor, switches and gearing.
  • Page 8 BRAY Series 70 Electric Actuator Operation and Maintenance Manual With the travel switch in the closed position, rotate the handwheel clockwise ½ turn for Housing Size 6, 1 turn for Housing Size 12, ½ turn for Housing Size 30, and 2 turns for Housing Size180.
  • Page 9 BRAY Series 70 Electric Actuator Operation and Maintenance Manual isassembly and ssembly OOlS required Remove the switchplate by unscrewing the seven phillips head mounting screws. The switchplate should lift out as an assembly with the camshaft attached. The switchplate can be independently disassembled.

  • Page 10: F Ield Or F Actory I Nstallable O Ptions

    BRAY Series 70 Electric Actuator Operation and Maintenance Manual mechanism. A drive lever & pin rides in the worm gear torque ield aCTOry nsTallable PTiOns sensor groove, and in turn drives a cam. The cam then actu- Orque WitcheS ates its electrical switch, which interrupts the power to the...

  • Page 11: Heater

    To prevent condensation from forming inside the actuator, Bray offers an optional heater. The heater is a PTC Disconnect all power to the unit. (Positive Temperature Coefficient) style which has a unique Place the heater snugly into its mounting bracket until temperature - resistance characteristic.
  • Page 12 BRAY Series 70 Electric Actuator Operation and Maintenance Manual nStallatiOn rOcedure erVO alibratiOn Disconnect all power to the unit. The calibration procedure defines the limits of operation of Remove the on/off duty, 9 point terminal strip the Series 70 Actuator between the fully open valve position and its marker and the fully closed valve position.
  • Page 13 BRAY Series 70 Electric Actuator Operation and Maintenance Manual xternal ignal eedbacK OtentiOMeter et the OtentiOMeter Manually operate the actuator handwheel until the unit Potentiometers for external feedback can be field installed is in the fully closed position. on all continuous duty actuators. Actuators which are not...
  • Page 14 BRAY Series 70 Electric Actuator Operation and Maintenance Manual 12 & 30 OnfiguratiOn OuSing OuSing izeS OuSing 1. ON/OFF (Intermittent Duty Motor) with Main 2 Switch 2 Switch Switches (Standard OPEN and CLOSE 2 Cams 2 Cams switches) Standard Assembly P/N...
  • Page 15 BRAY Series 70 Electric Actuator Operation and Maintenance Manual Field Wiring Actuator Wiring diagram for basic unit with C-Form (SPDT) travel switches. (Drawn for actuator in its fully closed condition.) Field Wiring Actuator Wiring diagram for unit with one set of “Voltage Free” C-Form (SPDT) Auxilary open/close travel switches.
  • Page 16 BRAY Series 70 Electric Actuator Operation and Maintenance Manual FIELD WIRING ACTUATOR CLOSE N.O. (VOLTAGE FREE) BLUE OPEN N.O. (VOLTAGE FREE) BLUE NEUTRAL SINGLE PHASE LIVE POWER SUPPLY DIP SWITCHES N.O. GROUND CALIBRATE STATUS N.C. AUX OPEN COMMON WHITE BLUE...
  • Page 17 BRAY Series 70 Electric Actuator Operation and Maintenance Manual i. a Green-Red-Green flash immediately following the djuSt the OPen and clOSe SPeed Of yOur actuatOr attempted calibration (for more information on the he faSteSt clOSing SPeed Of yOur actuatOr iS...
  • Page 18 Wiring • For terminal wiring Screwdriver, diagrams for plug-in receptacles for either the Bray Series • For Mini or Euro receptacle Wrench, 1” 70 or the local control station will be provided as a separate diagram.

  • Page 19: Spinner

    A spinner is available to ease and speed the manual override used with modulating S70 have different contact blocks of the Bray Series 70 actuator. The Housing Size 6 units internally, the correct part number must be used to ensure mount the spinner on a lever which screws onto the back of you order the correct unit (see price sheet).

  • Page 20: Basic Tools

    BRAY Series 70 Electric Actuator Operation and Maintenance Manual PPendix aSic OOlS OMMOn nitS Terminal connections, cam adjustment Screwdriver, tip flat tip blade 1/4” All switches, terminal strip, torque switch plate Screwdriver, No.1 phillips Switchplate screws, capacitor Screwdriver, No.2 phillips...
  • Page 21 BRAY Series 70 Electric Actuator Operation and Maintenance Manual PPendix ctuatOr rOubleShOOting hart rObleM OSSible cauSe OlutiOnS Override is engaged Push handwheel in all the way Wiring is incorrect Check wiring and power supply Actuator does not operate Actuator motor has reached its thermal...
  • Page 22 BRAY Series 70 Electric Actuator Operation and Maintenance Manual S70 S erVO rO trOubleShOOting chart Refer to the Servo Pro Operation Manual for more information. rObleM OSSible cauSe OlutiOnS Signal is fluctuating beyond deadband Increase the deadband using the Deadband...
  • Page 23 BRAY Series 70 Electric Actuator Operation and Maintenance Manual PPendix erieS ouSing ON / OFF 1 POSITION INDICATOR COVER 31 SPRING PLUNGER 2 POSITION INDICATOR SEAL 32 MANUAL OVERRIDE SLEEVE 3 COVER FASTENING SCREWS 33 RETAINING RING 4 COVER 34 HANDWHEEL 5 0-RING 35 HANDWHEEL WARNING LABEL 6 INDICATOR ROTOR 36 BUSHING 7 CAM ASSEMBLY...
  • Page 24 BRAY Series 70 Electric Actuator Operation and Maintenance Manual erieS ouSing ON / OFF POSITION INDICATOR COVER 30 MANUAL OVERRIDE SHAFT POSITION INDICATOR SEAL 31 SPRING PLUNGER COVER FASTENING SCREWS 32 MANUAL OVERRIDE SLEEVE COVER 33 RETAINING RING 0-RING 34 HANDWHEEL INDICATOR ROTOR 35 HANDWHEEL WARNING LABEL CAM ASSEMBLY 36 BUSHING TERMINAL STRIP 37 DRIVE GEAR TERMINAL STRIP TAG 38 DRIVE GEAR PIN...
  • Page 25 BRAY Series 70 Electric Actuator Operation and Maintenance Manual erieS ouSing ON / OFF 30 MANUAL OVERRIDE SHAFT 1 POSITION INDICATOR COVER 31 SPRING PLUNGER 2 POSITION INDICATOR SEAL 32 MANUAL OVERRIDE SLEEVE 3 COVER FASTENING SCREWS 33 RETAINING RING 4 COVER 34 HANDWHEEL 5 0-RING 35 HANDWHEEL WARNING LABEL 6 INDICATOR ROTOR 36 BUSHING...
  • Page 26 BRAY Series 70 Electric Actuator Operation and Maintenance Manual erieS 3:1 g ouSing ON / OFF 30 MANUAL OVERRIDE SHAFT 31 SPRING PLUNGER 2 32 MANUAL OVERRIDE SLEEVE 3 COVER FASTENING SCREWS 33 RETAINING RING 4 COVER 34 HANDWHEEL 5 0-RING 35 HANDWHEEL WARNING LABEL 6 36 BUSHING 7 CAM ASSEMBLY...
  • Page 27 BRAY Series 70 Electric Actuator Operation and Maintenance Manual erieS 3:1 g ON / OFF 59 INDICATOR FASTENING SCREW 60 POSITION INDICATOR PLATE 61 POSITION INDICATOR GASKET 62 ACTUATOR/GEAR BOX GASKET 63 COVER 64 TRAVEL STOP BOLT 65 LOCK NUT 66 NYLON FLAT WASHER 67 O-RING 68 ACTUATOR/GEAR BOX FASTENING SCREW 69 OUTPUT GEAR BEARING 70 IDLER/INPUT GEAR BEARING 71 COVER GASKET...
  • Page 30 CONTROLS A Division of BRAY INTERNATIONAL, Inc. 13333 Westland East Blvd. Houston, Texas 77041 281-894-5454 FAX 281/894-9499 www.bray.com Bray is a registered trademark of BRAY INTERNATIONAL, Inc. ® © 2013 Bray International. All rights reserved. OM-70-001 01-2013...

This manual is also suitable for:

70-003x-113yz-53670-006x-113yz-53670-008x-113yz-53670-012x-113yz-53670-020x-113yz-53670-030x-113yz-536 ... Show all

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