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Summary of Contents for Bray 75 Series
- Page 1 SERIES 74 ELECTRIC ACTUATOR OPERATION AND MAINTENANCE MANUAL High Performance Company 204450...
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Page 2: Table Of Contents
IRING DIAGRAM FOR 24V DC / M ---------------------------------------------- 24 IRING DIAGRAM FOR ODULATING 24V AC / M ---------------------------------------------- 25 IRING DIAGRAM FOR ODULATING FOR INFORMATION ON THIS PRODUCT AND OTHER BRAY PRODUCTS - www.bray.com PLEASE VISIT US AT OUR WEBPAGE... -
Page 3: Specification
BRAY Series 74 Electric Actuator Operation and Maintenance Manual PECIFICATIONS 12V / 24V Model Max Torque Speed Motor Motor Speed RPM 12V DC/AC 24V DC/AC In/Lbs (Nm) (90°) Power Run Start Lock Start Lock S74-0890 8850 (1000) 220W — 1800 —... - Page 4 BRAY Series 74 Electric Actuator Operation and Maintenance Manual & L to allow motor to run. Adjusting cam so that switch lever RA VEL IMIT WITCH DJUSTMENT is not depressed will stop motor. IZES LS1 & LS2 - Open and Close travel switch cams can be LS3 &...
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Page 5: Mechanical Stops
BRAY Series 74 Electric Actuator Operation and Maintenance Manual ECHANICAL TOPS LECTRIC PERATION Please refer to “Travel Cam & Limit Switch Adjustment” The motor should be stopped by the end of travel limit switches (LS1 & 2) being activated by their respective cams. -
Page 6: Modulating Control Board
BRAY Series 74 Electric Actuator Operation and Maintenance Manual ODULATING ONTROL OARD NTERFACE Terminal Block Green Lamp (Open Indicator) Red Lamp (Closed Indicator) Sensitivity Switch is set in position 3 at factory. Power Pos. 1 being most sensitive Pos. 0 being least sensitive... -
Page 7: Roubleshooting
BRAY Series 74 Electric Actuator Operation and Maintenance Manual CTUATOR ROUBLESHOOTING HART Problem Possible cause Solutions Motor does not operate Check supply power and voltage are correct. Check by meter. Any blisters on the capacitor? If so replace. Is the gear train locked-up? Remove motor to check. - Page 8 BRAY Series 74 Electric Actuator Operation and Maintenance Manual ERIES : 0890 & 1330 (1 1 SCREW 20 SCREW 39 4th GEAR 58 SPRING PIN 2 MOUNTING PLATE 21 LIMIT SWITCH 40 BEARING 59 O-RING 3 WINDOW PROTECTION COVER 22 MOUNTING BRACKET...
- Page 9 BRAY Series 74 Electric Actuator Operation and Maintenance Manual ERIES : 0890 & 1330 (2 76 SCREW* 89 WORM SHAFT 77 TORQUE LIMIT SWITCH* 90 BEARING 78 MOUNTING PLATE* 91 SPRING WASHER* 79 SPACER* 92 BEARING* 80 TORQUE CAM* 93 BUSHING*...
- Page 10 BRAY Series 74 Electric Actuator Operation and Maintenance Manual ERIES : 2210 & 3100 (1 1 SCREW 32 MOUNTING PLATE 54 BEARING 75 OIL SEAL 2 MOUNTING PLATE 33 MOUNTING BRACKET 55 SNAP RING (C TYPE) 76 HAND WHEEL 3 WINDOW PROTECTION COVER...
- Page 11 BRAY Series 74 Electric Actuator Operation and Maintenance Manual ERIES : 2210 & 3100 (2 95 SCREW* 110 BUSHING* 96 TORQUE LIMIT SWITCH* 111 O-RING* 97 MOUNTING PLATE* 112 MOUNTING PLATE* 98 SPACER* 113 SCREW 99 TORQUE CAM* 114 O-RING...
- Page 12 BRAY Series 74 Electric Actuator Operation and Maintenance Manual IAGRAM BBREVIATIONS 1. MC1 and MC2: Electromagnetic Contactor 5. LS1 & 2 - Open & Close travel limit switches. 2. C.S.: Control Switch LS3 & 4 - Aux travel indication swithes (voltage free 3.
- Page 13 BRAY Series 74 Electric Actuator Operation and Maintenance Manual S74 - 890 & 1330 S 110V / 220V AC 1-PH / M IRING IAGRAM IZES ODULATING ERVICE Input Signal Power Supply (Use shielded wire & ground shield on one 110/220V AC end only.)
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Page 14: Remote
BRAY Series 74 Electric Actuator Operation and Maintenance Manual S74 110V / 220V AC 1-PH / M IRING IAGRAM ODULATING ERVICE OCAL EMOTE ELECTOR WITCH Output Signal 4-20mA or 2-10V. Input Signal 4-20mA or 2-10V or 1-5V. Power Supply 110/120V Heater 1-PH. - Page 15 BRAY Series 74 Electric Actuator Operation and Maintenance Manual S74 110V / 220V AC 1-PH / ON-OFF S IRING IAGRAM ERVICE OCAL EMOTE ELECTOR WITCH Power Supply Customer's 110V/220V remote control switch. Connect to remote position Open Close indication circuit, if required.
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Page 16: Wiring Diagram For 110V/220V Ac 1-Ph
BRAY Series 74 Electric Actuator Operation and Maintenance Manual S74 110V / 220V AC 1-PH / 4-20 IRING IAGRAM UTPUT IGNAL Power Supply 110V/220V 1-PH Customer's remote control switch. Open Close Output Signal 4-20mA Connect to remote position indication circuit, if required. - Page 17 BRAY Series 74 Electric Actuator Operation and Maintenance Manual S74 110V / 220V S IRING IAGRAM WITCH ONNECTION IRING WARNING - Do not wire multiple Actuator "C" Full close single phase on/off duty actuators in parallel with common contacts. Full open...
- Page 18 BRAY Series 74 Electric Actuator Operation and Maintenance Manual S74 220V / 380V / 440V 3-PH / ON-OFF S IRING IAGRAM ERVICE OCAL EMOTE ELECTOR WITCH MC2-a MC2-a MC2-a MC1-a Power Supply MC1-a 220V/380V 440V 3-PH MC1-a 110V Heater Remote...
- Page 19 BRAY Series 74 Electric Actuator Operation and Maintenance Manual S74 220V / 380V / 440V 3-PH / M IRING IAGRAM ODULATING ERVICE MC2-a MC2-a MC2-a MC1-a Power Supply MC1-a 220V/380V 440V 3-PH MC1-a Input Signal (Use shielded wire & 110V...
- Page 20 BRAY Series 74 Electric Actuator Operation and Maintenance Manual S74 220V / 380V / 440V 3-PH / ON-OFF S IRING IAGRAM ERVICE / 4-20mA O OCAL EMOTE ELECTION WITCH UTPUT IGNAL MC2-a MC2-a MC2-a MC1-a Power Supply MC1-a 220V/380V 440V 3-PH...
- Page 21 BRAY Series 74 Electric Actuator Operation and Maintenance Manual S74 220V / 380V / 440V 3-PH / 4-20mA O IRING IAGRAM UTPUT IGNAL Power Supply 220V/380V/440V 3-PH Remote/Customer supplied reversing contactor & push buttons. Field wiring shown as dashed lines.
- Page 22 BRAY Series 74 Electric Actuator Operation and Maintenance Manual S74 24V DC IRING IAGRAM Power Supply 24V DC Actuator External/Field Wiring shown with dashed lines Actuator drawn for it's fully closed position (close travel switch "LS2 has been tripped) Connect to remote position...
- Page 23 BRAY Series 74 Electric Actuator Operation and Maintenance Manual S74 24V AC IRING IAGRAM Power Supply 24V AC Connect to remote position OPEN CLOSE indication circuit, if required. NO NC NO NC NO NC 1 2 3 4 5 6 7...
- Page 24 BRAY Series 74 Electric Actuator Operation and Maintenance Manual S74 220V/380V/440V/480V AC 3-PH IRING IAGRAM Power Supply 220/380/440/480VAC 3-phase Customer supplied reversing contactor & control devices. OPEN CLOSE MC2-a MC2-a MC2-a MC1-a MC1-a MC1-a Close Lamp Open Lamp MC1-b MC2-b...
- Page 25 BRAY Series 74 Electric Actuator Operation and Maintenance Manual S74 24V DC / M IRING IAGRAM ODULATING ERVICE Power Supply Input Signal (Use shielded wire & 24V DC ground shield on one end only.) Position Feedback Signal INT POT 1 2 3 4 5 6 7 8 9 10 11 12...
- Page 26 BRAY Series 74 Electric Actuator Operation and Maintenance Manual S74 24V AC / M IRING IAGRAM ODULATING ERVICE Input Signal Power Supply (Use shielded wire & ground shield on one 24V AC end only.) Position Feedback Signal INT POT 1 2 3 4 5 6 7 8 9 10 11 12...
- Page 27 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. © 2006 Bray International. All rights reserved. OM-74-001 7/2006 204450...
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