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101 Ways to BRAKE Your Servo Motor

24 Oct 2013
Michael Brown

Frequently, servo motors are returned where the brakes are worn. This is almost always due to the brake being applied repeatedly while the motor/load is moving. The application of a motor brake in a "dynamic / moving" scenario will result in dramatic wear of the brake mechanism. As stated in catalogs and manuals, the motor brake is to be applied in a "static / stationary" condition only. Having the drive/control verify the motor is at zero speed, prior to releasing and applying the brake, will ensure a long service life. Also, timing is critical. The catalog will list the times required for brakes to release and apply. If you issue a "run command" as soon as the drive enables (which typically releases the brake), you could possibly have the motor overpowering the brake for say 0.3 seconds.

A great analogy is your car's parking brake. Will it help slow you down if applied while you are moving? Yes - It will. Will it hold up being utilized this way? No. You are applying the parking brake in a manner for which it was not designed, if used while the car is in motion. Like a motor brake, it is designed to hold a stationary body at rest.

Braking in Traffic

If you have any questions, please know you can contact Kollmorgen Application Engineers at any time, to ensure that the system will perform as required.

About the Author

Michael Brown - Author
Mike, a member of the Level 2 Technical Support Team, has been with Kollmorgen since April 2006.  After graduating from West Virginia Institute of Technology, with a B. S. Degree in Electrical Engineering Technology, he worked for many years in power generation and delivery applications.  For four years, Mike then had the role of a Manufacturing Engineer.  Mike does enjoy family time, working on old cars as well as fishing in his spare time.  If he can be of assistance, please feel free to contact him at : Mike Brown
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