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Is it safe to use a DC power supply voltage higher than the voltage rating specified for the motor?

April 26, 2017dc motor power rating safe supply voltage

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Is it safe to use a DC power supply voltage higher than the voltage rating specified for the motor?

2 Answers

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a. Normally this is not a problem as long as the motor operates within the speed and current limits set by the manufacturer. Since motor speed is proportional to the voltage across the motor leads, select a power supply voltage that could not cause a mechanical over-speed in the event of an amplifier malfunction or a runaway condition. Furthermore, always ensure the motor meets the minimum load inductance requirements of the amplifier and make sure the current limit is set to less than or equal to the rating of the motor.

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A. a. Normally this not a problem as long as the motor operates within the speed and current limits set by the manufacturer. Since motor speed is proportional to the voltage across the motor leads, select a power supply voltage that could not cause a mechanical over-speed in the event of an amplifier malfunction or a runaway condition. Furthermore, always ensure the motor meets the minimum load inductance requirements of the amplifier and make sure the current limit is set to less than or equal to the rating of the motor.