Brushless DC Motor Specifications - Torque

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Brushless DC Motor Specifications - Torque

Post by om_tech_support_JT » Tue Jun 29, 2010 1:36 pm

Q: Why do I see different values for torque for your brushless DC motor speed control systems? What is "Rated Torque", what is "Starting Torque", and what is the difference between "Continuous Duty Region" and "Limited Duty Region" I see in the speed-torque graphs?

A:
"Starting Torque" refers to the limit of torque that can be generated instantaneously with a given combination of motor and driver.

"Rated Torque" refers to the maximum torque that can be generated with a given combination of motor and driver during a continuous operation.

"Continuous Duty Region" is the region in the speed-torque graph where our brushless DC motor can be operated continuously.

"Limited Duty Region" is the region in the speed-torque graph where our brushless DC motor can be operated for a short period of time. If you operate in this region for more than 5 seconds, the driver's overload alarm will go on, and the motor will come to a stop.

For more information, please see page B-12 of the following link:
http://www.orientalmotor.com/products/p ... erview.pdf

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