APPENDIX G: MOTOR EXPLODED VIEW ..... . 23 FOR MORE INFORMATION ON THIS PRODUCT AND OTHER BRAY PRODUCTS PLEASE VISIT OUR WEBSITE – www.braycommercialdivision.com...
Series 71 – Electric Actuator Installation, Operation and Maintenance Manual READ AND FOLLOW THESE INSTRUCTIONS SAVE THESE INSTRUCTIONS 2.0 DEFINITION OF TERMS WARNING Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury. CAUTION Indicates a potentially hazardous situation which, if not avoided, may result in minor or moderate injury.
First aid. 4.0 INTRODUCTION The Bray Series 71 is a quarter turn electric actuator with manual declutchable override for use on any quarter turn valve or device requiring up to 531 lbs-in (60 Nm) of torque. Standard operating speed is 30 seconds for single phase line powered units.
Series 71 – Electric Actuator Installation, Operation and Maintenance Manual 5.0 PART NUMBERING SYSTEM - REFERENCE CHART Series – Torque Options – Actuator Control Voltage – Trim – – – Series Series 71 - QTR Turn Torque 531 lbf-in/60 Nm Options Standard - Aux Switches Aux Switches + Heater...
Installation, Operation and Maintenance Manual ELECTRICAL OPERATION The motors used in the Bray Series 71 are of either permanent split capacitor (PSC) design for single phase line applications or permanent magnet (PM) design for 24AC/DC power. Travel limit switches are mechanical form (SPDT) with contact rated at 3A 125/250 VAC.
Series 71 – Electric Actuator Installation, Operation and Maintenance Manual 7.2.1 S71 120VAC ON/OFF ACTUATOR WITH INTERPOSING RELAY BOARD The back feeding of one actuator by another one wired in parallel is eliminated by using the S71 I.R.B. If the actuator is running Open and the customer switches “instantaneously”...
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Series 71 – Electric Actuator Installation, Operation and Maintenance Manual S71 120VAC ON/OFF ACTUATOR WITH INTERPOSING RELAY BOARD S71 120VAC ON/OFF ACTUATOR WITH INTERPOSING RELAY ASSEMBLY...
Series 71 – Electric Actuator Installation, Operation and Maintenance Manual 7.2.2 S71 24V ON/OFF ACTUATOR WITH ON/OFF CONTROLLER Whether supplying AC or DC power, the 24V On/Off Controller provides a reference direction signal and DC power to an H-bridge to power and control motor direction.
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Series 71 – Electric Actuator Installation, Operation and Maintenance Manual S71 24VAC ON/OFF ACTUATOR WITH ON/OFF CONTROLLER BOARD S71 24VAC ON/OFF ACTUATOR WITH ON/OFF CONTROLLER ASSEMBLY...
Series 71 – Electric Actuator Installation, Operation and Maintenance Manual 7.2.3 S71 120VAC MODULATING ACTUATOR S71 SERVO CONTROLLER Power connection that energizes the S71 Servo and powers the actuator under control. The voltage supplied should be based on the actuator nameplate voltage and the voltage listed on the S71 Servo label.
Series 71 – Electric Actuator Installation, Operation and Maintenance Manual 7.2.4 S71 24V MODULATING ACTUATOR S71 SERVO CONTROLLER Power connection that energizes the S71 Servo and powers the actuator under control. The voltage supplied should be based on the actuator nameplate voltage and the voltage listed on the S71 Servo label.
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Series 71 – Electric Actuator Installation, Operation and Maintenance Manual S71 24VAC MODULATING ACTUATOR WITH SEVRO S71 BOARD S71 24VAC MODULATING ACTUATOR WITH S71 SERVO ASSEMBLY...
9.0 COMMISSIONING MOUNTING THE ACTUATOR All Bray Series 71 electric actuators are suitable for direct mounting on Bray valves. With proper mounting hardware, the S71 actuator can be installed onto other quarter-turn valves or devices.
Series 71 – Electric Actuator Installation, Operation and Maintenance Manual WIRING THE ACTUATOR WARNING Turn off all power and lockout/tag out service panel before installing or modifying any electrical wiring. • Take the actuator cover off. The cover should be kept on hand for reference. •...
11.0 INSTALLABLE OPTIONS 11.1 HEATER Bray offers an optional heater as a factory installable option for the Series 71 actuator to prevent condensation from forming inside the actuator. Units with On/Off actuation use a positive temperature coefficient (PTC) style heater which has a unique temperature – resistance characteristic. The heater self-regulates by increasing its electrical resistance relative to the internal temperature.
11.3 RECEPTACLES Bray offers plug-in receptacles as a field or factory option for quick and easy field wiring of Series 71 actuators. Cord sets to fit these connectors can also be ordered in several lengths. Unless otherwise specified, power receptacles will be 5-pin mini style, standard duty with a black anodized aluminum finish.
Series 71 – Electric Actuator Installation, Operation and Maintenance Manual 13.0 APPENDIX B: ACTUATOR TROUBLESHOOTING CHART Check wiring and power Actuator does not operate Wiring is incorrect supply Actuator operates in Field wiring is reversed Rewire field wiring reverse directions Limit switches are Readjust travel limit depressed...
Series 71 – Electric Actuator Installation, Operation and Maintenance Manual 16.0 APPENDIX E: BASE EXPLODED VIEW ITEM NO. PART NUMBER DESCRIPTION QTY. S71 BASE ASSEMBLY SQUARE SEAL RING CAPACITOR SOCKET HEAD CAP SCREW - M4X8MM M4 SPLIT WASHER O-RING, QUADRANT GEAR, AN120, INTERNAL DIAMETER: 25.07MM, CS: 2.62MM O-RING, HANDWHEEL,...
Series 71 – Electric Actuator Installation, Operation and Maintenance Manual 18.0 APPENDIX G: HEATER/MOTOR EXPLODED VIEW ITEM NO. PART NUMBER DESCRIPTION QTY. 120V MOTOR DRIVE GEAR 09-0001-71109-533 HEATER SOCKET HEAD CAP SCREW - 07-5104-72102-529 M2 X 6MM MOTOR BRACKET LOCK WASHER, INTERNAL 07-5100-72507-529 TEETH, M2 07-5100-72408-529...
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All statements, technical information, and recommendations in this bulletin are for general use only. Consult Bray representatives or factory for the specific requirements and material selection for your intended application. The right to change or modify product design or product without prior notice is reserved.
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