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Summary of Contents for Bray 70-003-113-536 Series
- Page 1 SERIES 70 Metric 2ND GENERATION ELECTRIC ACTUATOR METRIC VERSION - OPERATION AND MAINTENANCE MANUAL...
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Page 3: Table Of Contents
Series 70 - 3:1 Gear Box . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25 For information on this product and other Bray products... -
Page 4: Safety Instructions - Definition Of Terms
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual Safety Instructions - Definition of Terms READ AND FOLLOW THESE INSTRUCTIONS SAVE THESE INSTRUCTIONS indicates a potentially hazardous situation which, if not avoided, could result in death WARNING or serious injury. -
Page 5: Part Numbering System Reference Chart
INTRODUCTION cooldown period. Torque switches installed by Bray are The Bray Series 70 is a quarter turn electric actuator factory adjusted to the output torque rating of the unit with manual override for use on any quarter turn valve using electronic torque testing equipment. -
Page 6: Manual Override Operation (Declutchable)
Actuators are not weatherproof until properly installed to align the bolt patterns. on the valve or prepared for storage. Bray cannot accept responsibility for deterioration caused on-site once the 4. Install the furnished mounting studs by threading cover is removed. -
Page 7: Multiple Actuator (Parallel) Wiring
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual MULTIPLE ACTUATOR (PARALLEL) WIRING CAUTION CAUTION Do not reverse motor instantaneously when it is still running. Reversing direction to actuator motor when it is running can Do not connect more than one S70 actuator which do not cause damage to motor, switches and gearing. -
Page 8: Close Travel Switch Adjustment
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual 5. 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. Adjust the closed travel stop bolt until it bottoms against the output gear and lock it in position with the locknut. -
Page 9: Disassembly And Assembly
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual 3. The switchplate can be independently disassembled. DISASSEMBLY AND ASSEMBLY Tools required: 4. To remove the Gearmotor, first disconnect the motor leads which run to the capacitor, and unscrew the See Appendix A for a complete list of basic tools. -
Page 10: Field Or Factory Installable Options
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual A specially designed drive lever and pin is incorporated FIELD OR FACTORY INSTALLABLE OPTIONS into the worm, providing the profile for the torque switching TORQUE SWITCHES mechanism. A drive lever & pin rides in the worm gear Torque switches are a factory installed and calibrated torque sensor groove, and in turn drives a cam. -
Page 11: Heater
To prevent condensation from forming inside the 1. Place the heater snugly into its mounting bracket actuator, Bray offers an optional heater. The heater is a until approx. 10 to 20mm is left above the bracket PTC (Positive Temperature Coefficient) style which has as shown in diagram. -
Page 12: Installation Procedure
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual INSTALLATION PROCEDURE SERVO CALIBRATION • Disconnect all power to the unit. The calibration procedure defines the limits of operation of the Series 70 Actuator between the fully open valve •... -
Page 13: External Signal Feedback Potentiometer
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual EXTERNAL SIGNAL FEEDBACK POTENTIOMETER SET THE POTENTIOMETER Potentiometers for external feedback can be field 1. Manually operate the actuator handwheel until the installed on all continuous duty actuators. Actuators which unit is in the fully closed position. -
Page 14: Auxiliary Switch Configuration Chart
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual AUXILIARY SWITCH CONFIGURATION CHART CONFIGURATION HOUSING SIZE 6 HOUSING SIZES 12 & 30 HOUSING SIZE 180 1. ON/OFF (Intermittent Duty Motor) with 2 Switch 2 Switch Main Switches (Standard OPEN and... -
Page 15: Typical Wiring Diagram: On/Off Service
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual TYPICAL WIRING DIAGRAM: ON/OFF SERVICE Wiring diagram for basic unit with Form-C (SPDT) travel limit switches, I.R.B., and double override switches. (Drawn for actuator in its fully closed condition.) Wiring diagram for unit with Form-C (SPDT) travel limit switches, “Voltage Free” Auxiliary open/close switches, I.R.B., double override switches and torque switches. -
Page 16: Typical Wiring Diagram: Modulating Service
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual TYPICAL WIRING DIAGRAM: MODULATING SERVICE Wiring diagram for unit with Form-C (SPDT) travel limit switches, “Voltage Free” Auxiliary open/close switches, Servo and double override switches. (Drawn for actuator in its full closed position.) Warning: Turn ALL Power Off prior to adjusting DIP switches. -
Page 17: Adjustments, Calibration And Status Led Of Servo Pro
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual ADJUSTMENTS, CALIBRATION AND STATUS LED OF SERVO PRO A. Adjust the open and close speed of your actuator B. Calibrate the Servo: (The fastest closing speed of your actuator is 1. -
Page 18: Receptacles (Quick Connectors)
Wiring diagrams for plug-in receptacles for 3. Wiring diagram (SK-# below) either the Bray Series 70 or the local control station will Tools required: be provided as a separate diagram. Units ordered with pin connector receptacles factory installed are wired •... -
Page 19: Spinner
A spinner is available to ease and speed the manual internally, the correct part number must be used to ensure override of the Bray Series 70 actuator. The Housing Size you order the correct unit (see price sheet). 6 units mount the spinner on a lever which screws onto Local Control Station Kit consists of: the back of the handwheel. -
Page 20: Basic Tools
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual APPENDIX A BASIC TOOLS Common To All Units Terminal connections, cam adjustment Screwdriver, 6 mm tip flat tip blade All switches, terminal strip, torque switch plate Screwdriver, No.1 Phillips Switchplate screws, capacitor Screwdriver, No.2 Phillips... -
Page 21: Actuator Troubleshooting Chart
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual APPENDIX B ACTUATOR TROUBLESHOOTING CHART Problem Possible Cause Solutions Override is engaged Push handwheel in all the way Wiring is incorrect Check wiring and power supply Actuator does not operate... -
Page 22: S70 Servo Pro Troubleshooting Chart
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual S70 SERVO PRO TROUBLESHOOTING CHART Refer to the Servo Pro Operation Manual for more information. Problem Possible Cause Solutions Signal is fluctuating beyond deadband Increase the deadband using the Deadband... -
Page 23: Appendix C - Exploded Views
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual APPENDIX C - EXPLODED VIEWS SERIES 70 - HOUSING SIZE 6 ON / OFF 1 POSITION INDICATOR COVER 37 SPRING PLUNGER 2 POSITION INDICATOR SEAL 38 MANUAL OVERRIDE SHAFT 3 COVER FASTENING SCREWS... -
Page 24: Series 70 - Housing Size 12
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual SERIES 70 - HOUSING SIZE 12 ON / OFF POSITION INDICATOR COVER 37 O-RING POSITION INDICATOR SEAL 38 O-RING COVER FASTENING SCREW 39 RETAINING RING COVER 40 HANDWHEEL WARNING LABEL... -
Page 25: Series 70 - Housing Size 30
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual SERIES 70 - HOUSING SIZE 30 ON / OFF 1 POSITION INDICATOR COVER 37 O-RING 2 POSITION INDICATOR SEAL 38 O-RING 3 COVER FASTENING SCREW 39 RETAINING RING, INTERNAL 4 COVER... -
Page 26: Series 70 - Housing Size 180 For 3:1 Gear Box
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual SERIES 70 - HOUSING SIZE 180 FOR 3:1 GEAR BOX ON / OFF COVER FASTENING SCREW 34 HANDWHEEL WARNING LABEL COVER 35 HANDWHEEL O-RING 36 SPRING PIN BUSHING 37 MANUAL OVERRIDE BUSHING... -
Page 27: Series 70 - 3:1 Gear Box
BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual SERIES 70 - 3:1 GEAR BOX ON / OFF FASTENING SCREW POSITION INDICATOR PLATE POSITION INDICATOR GASKET ACTUATOR/GEAR BOX GASKET DOWEL PIN O-RING WASHER, FLAT, NYLON NUT, HEX BOLT, HEX HEAD... - Page 28 BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual...
- Page 29 BRAY Series 70 Metric Electric Actuator Operation and Maintenance Manual...
- 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-70-01M 11-2014...
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