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2ND GENERATION ELECTRIC ACTUATOR …

TheHighPerformanceCompanySERIES 702ND GENERATION ELECTRIC ACTUATOROPERATION AND maintenance MANUALBRAY Series 70 ELECTRIC ActuatorOperation and maintenance Manual1 Table Of COnTenTs: pageSafety in StructionS: definition of termS ..2 introduction ..3 principle of operation ..3 electrical operation ..3 mechanical operation ..3 manual override operation ..4 pre-in Stallation inStallation ..4 mounting to a valve ..4 field wiring ..4 multiple ACTUATOR wiring ..5 SerieS 70 on/off ACTUATOR with interpoSing relay board ..5 travel limit Switch and mechanical travel Stop adjuStment.

BRAY Series 70 Electric Actuator Operation and Maintenance Manual 3 inTrOduCTiOn The Bray Series 70 is a quarter turn electric actuator with manual override for use on any quarter turn valve requiring up to 18000 in.lb of …

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Transcription of 2ND GENERATION ELECTRIC ACTUATOR …

1 TheHighPerformanceCompanySERIES 702ND GENERATION ELECTRIC ACTUATOROPERATION AND maintenance MANUALBRAY Series 70 ELECTRIC ActuatorOperation and maintenance Manual1 Table Of COnTenTs: pageSafety in StructionS: definition of termS ..2 introduction ..3 principle of operation ..3 electrical operation ..3 mechanical operation ..3 manual override operation ..4 pre-in Stallation inStallation ..4 mounting to a valve ..4 field wiring ..4 multiple ACTUATOR wiring ..5 SerieS 70 on/off ACTUATOR with interpoSing relay board ..5 travel limit Switch and mechanical travel Stop adjuStment.

2 6 cloSe adjuStment ..6 open adjuStmentS ..7 baSic diSaSSembly and aSSembly inStructionS ..7 field or factory inStallable optionS torque SwitcheS operation ..8 heater ..9 Servo pro module ..9 external feedback potentiometer ..11 auxiliary SwitcheS ..11 auxiliary Switch configuration chart ..12 typical wiring diagramS form c (Spdt) SwitcheS on/off Service ..13 typical wiring diagramS modulating Service ..14 adjuStmentS, calibration & StatuS led of Servo pro ..15 quick connect receptacleS ..16 Spinner ..17 local control Station ..17 appendix a baSic toolS ..18 appendix b ACTUATOR troubleShooting chart.

3 19 Servo troubleShooting chart ..20 appendix c exploded view and partS li St of Size 003 and exploded view and partS li St of Size 008, 012 and 020 ..22 exploded view and partS li St of Size 030, 050 and 065 ..23 exploded view and partS li St of Size 130 and 180 ( ELECTRIC ) ..24 exploded view and partS li St of Size 130 and 180 (gear box) ..25for information on thiS product and other bray productS pleaSe viSit uS at our web page - Series 70 ELECTRIC ActuatorOperation and maintenance Hazard-free useThis device left the factory in proper condition to be safely installed and operated in a hazard-free manner.

4 The notes and warnings in this document must be obeserved by the user if this safe condition is to be maintained and hazard-free operation of the device all necessary precautions to prevent damage to the ACTUATOR due to rough handling, impact, or improper storage. Do not use abrasive compounds to clean the ACTUATOR , or scrape metal surfaces with any control systems in which the ACTUATOR is installed must have proper safeguards to prevent injury to personnel, or damage to equipment, should failure of system components Qualified PersOnnelA qualified person in terms of this document is one who is familiar with the installation, commissioning and operation of the device and who has appropriate qualifications, such as.

5 Is trained in the operation and maintenance of ELECTRIC equipment and systems in accordance with established safety practices Is trained or authorized to energize, de-energize, ground, tag and lock electrical circuits and equipment in accordance with established safety practices Is trained in the proper use and care of personal protective equipment (PPE) in accordance with established safety practices Is trained in first aid In cases where the device is installed in a potentially explosive (hazardous) location is trained in the operation, commissioning, operation and maintenance of equipment in hazardous locationsWARNINGThe ACTUATOR must only be installed, commissioned, operated and repaired by qualified device generates large mechanical force during normal installation, commissioning, operation and maintenance must be performed under strict observation of all applicable codes.

6 Standards and safety is specifically made here to observe all applicable safety regualtions for actuators installed in potentially explosive (hazardous) insTruCTiOns - definiTiOn Of Termsread and fOllOW THese insTruCTiOnssaVe THese insTruCTiOnsWARNING indicates a potentially hazardous situation which, if not avoided, could result in death or serious a potentially hazardous situation which, if not avoided, may result in minor or moderate without the safety alert symbol indicates a potential situation which, if not avoided, may result in an undesirable result or state, including property damage.

7 !!!!BRAY Series 70 ELECTRIC ActuatorOperation and maintenance Manual3inTrOduCTiOnThe Bray Series 70 is a quarter turn ELECTRIC ACTUATOR with manual override for use on any quarter turn valve requiring up to 18000 of torque. Operating speeds vary between 6 to 90 seconds. PrinciPle Of OPeratiOnThe Series 70 ACTUATOR is basically divided into two internal sections; the power center below the switchplate, and the control center above the switchplate. Below the switchplate the capacitor and gearmotor with its spur geartrain drive a final non-backdriveable worm gear output.

8 The override mechanism for manual operation is also housed here. Above the switch-plate is where user required, readily accessible components are placed. The camshaft assembly, limit switches, terminal strips, torque switches, heater, and servo are all placed here for easy access. External to the unit are found adjustable me-chanical travel stops, a large easy to read indicator, the unique manual override handwheel and dual conduit entry ports. The external coating is a high quality polyester powder coat which has exceptional UV as well as chemical OPeratiOnThe motors used in the Bray Series 70 are either permanent induction split capacitor design (single phase AC power), SCI (Three Phase AC Power) or PM (DC Power).

9 Travel limit switches are mechanical form (SPDT) with contacts rated at 10 amp ( PF), 1/2 HP 125/250 VAC. In cases where the torque capacity of the unit is exceeded to the point where the motor stalls and overheats, a thermal protector switch built into the motor windings will automatically disconnect the motor power. Once the motor cools sufficiently the thermal protector switch will reset. Optional torque switches are available in all units to prevent the possibility of stalling the motor, thus reduc-ing the necessity for an inoperable thermal cooldown period.

10 Torque switches installed by Bray are factory adjusted to the output torque rating of the unit using electronic torque testing equipment. NOTICE Field adjustment of the torque switches is not Electrical SchematicNOTE: this is only a reference. For the actual wiring diagram refer to the diagram placed inside the ACTUATOR OPeratiOnMechanically, the ratio of the gearmotor determines the speed of the unit. The gearmotor utilizes high efficiency spur gears with various ratios for the different speeds. Initial gear reduction through the spur gears is then transferred to the worm shaft.


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