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D(M)-70-280 Series
D(M)-70-280 Series - Installation, Operation and Maintenance Manual
Technical Specifications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2, 3
Application/Warnings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Installation/Mounting . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-9
Wiring. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
PLEASE VISIT OUR WEBSITE –
— 70-280 lb-in (8-32 Nm) Electric Actuator
IOM Manual
Table of Contents
FOR MORE INFORMATION ON THIS PRODUCT
AND OTHER BRAY PRODUCTS
www.braycommercialdivision.com
1
Bray Commercial Division
13788 West Road, Suite 200A
Houston, Texas 77041
BCDSales@Bray.com
Phone: 1-888-412-2729
www.braycommercialdivision.com
© 2022 Bray International, Inc.
12/09/24
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Summary of Contents for Bray D-70 Series
- Page 1 Bray Commercial Division 13788 West Road, Suite 200A Houston, Texas 77041 BCDSales@Bray.com Phone: 1-888-412-2729 www.braycommercialdivision.com © 2022 Bray International, Inc. 12/09/24 D(M)-70-280 Series — 70-280 lb-in (8-32 Nm) Electric Actuator IOM Manual Table of Contents D(M)-70-280 Series - Installation, Operation and Maintenance Manual Technical Specifications .
- Page 2 To avoid excessive wear or drive time on the motor, use a controller and/or software that provides a time-out function to remove the signal at the end of rotation (stall). Disclaimer - The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these specifications, consult the nearest Bray office.
- Page 3 To avoid excessive wear or drive time on the motor, use a controller and/or software that provides a time-out function to remove the signal at the end of rotation (stall). Disclaimer - The performance specifications are nominal and conform to acceptable industry standards. For application at conditions beyond these specifications, consult the nearest Bray office.
- Page 4 D(M)-70-280 Series Installation, Operation & Maintenance Manual Continued Applications IMPORTANT: Bray’s wide variety of damper electric actuator Before specifying D(M)24-70, 140, 210, 280 Series choices increases flexibility when choosing peripheral Electric Spring Return Actuators for plenum products for Building Automation Systems. We offer...
- Page 5 D(M)-70-280 Series Installation, Operation & Maintenance Manual Continued Mounting: Mount the D(M)24-70-280 Series actuators in any convenient orientation. Install the actuators on a 3/8 to 3/4 in. (9.5 to 19 mm) round shaft or a 3/8 to 5/8 in. (9.5 to 16 mm) square shaft, 2 in. (51 mm) or lon- ger.
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Page 6: Rotation Range
D(M)-70-280 Series Installation, Operation & Maintenance Manual Continued Feedback Signal: 9. Press and hold the gear release. Rotate the For the modulating models, changing the rotation coupler fully closed to fully open to verify that the range changes the feedback signal and the operating damper and actuator rotate freely throughout the range proportionally. -
Page 7: Through The Conduit Openings
D(M)-70-280 Series Installation, Operation & Maintenance Manual Continued Auxiliary Switches (-A Models): 3. Rotate Switch S2 CW, and align the edge of the switch with the plunger until the plunger rises. The -A models have two built-in auxiliary switches that allow setting at any angle between 0° and 90° NOTE: (factory set for 10°... -
Page 8: Tandem Operation
D(M)-70-280 Series Installation, Operation & Maintenance Manual Continued Tandem Operation: When mounting two actuators front-to-back on the same shaft, connect: The tandem configuration provides twice the torque of a single actuator as follows: The tandem configu- • Terminal 101 from the master actuator to Terminal ration provides twice the torque of a single actuator 101 on the subordinate actuator. - Page 9 D(M)-70-280 Series Installation, Operation & Maintenance Manual Continued 3. Connect the input control signal: IMPORTANT: Adjust the rotation range before changing the • For D-Series, connect the input control signal to direction of action. the common, CW, and CCW terminals on both the master and the slave actuators.
- Page 10 D(M)-70-280 Series Installation, Operation & Maintenance Manual Continued Wiring D24-70, 140, 210, 280 TERMINAL BLOCK On/O Floating Control Auxiliary Switches D24-(70, 140)-A D24-(210, 280)-A Switch Switch Switch Switch COM CW CC W COM CW CCW 10° 80° 10° 80° NC NO 4 VAC 24 VAC 21 22 23 24 25...
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