Crouzet Motors (Vista, CA) introduced brushless DC motors with CANopen® technology. The new communications protocol allows design engineers to connect multiple brushless motors to the various components in a system. The CANopen interface permits connection of up to 127 brushless DC motors with a single, shielded, two-wire cable. Data may be transmitted at speeds up to 125 kBd at distances over 550 yards. At lower baud rates, the transmission distance can exceed three miles, making communications flexible to virtually any location. Under the communications protocol, motors can be controlled separately or together.

The motors can operate over a wide voltage range, withstanding up to 80 volts DC regenerative energy. In addition, the CANopen-enabled motors utilize two safety inputs to cut down power in the motor, even if the microprocessor has failed. Embedded Fieldbus control enables integral protection in severe environments, and immunity to external noise and vibration.

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