R88D-KN30F-ECT-R

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R88D-KN30F-ECT-R is a kind of motor driver board that drives S2M (switched reluctance motor) series motors. It is a programmable control unit, which provides superior speed and direction control, and some advanced features, such as slip compensation. This specific motor driver board has become a popular choice for a wide range of application fields from industrial use to automotive and consumer products.

Application Field

From a functional standpoint, the R88D-KN30F-ECT-R is a motion control device for industrial automation, specifically for the purpose of controlling the rotation of an electric motor. The driver board can be used to control the speed and direction of two-third-phase motors. Examples include rotary actuators, conveyors, centrifugal pumps and so on. It also offers better linearity of speed and torque than traditional motor drives. Therefore, the driver board is widely adopted in production automation, robots, motorized carts, etc.

The R88D-KN30F-ECT-R driver board has also gained increasing attention from automotive and consumer industries. Its compact size, high efficiency, and integrated advanced features make it advantageous to those who need a reliable and flexible solution. Therefore, the driver board can be employed in automotive systems like electric power steering, powertrain controllers, power windows, and sunroof systems, as well as in home appliances like washing machines, refrigerators, air-conditioners and dishwashers.

Working Principle

The R88D-KN30F-ECT-R driver board adopts switched reluctance motor (SRM) technology, by which a sinusoidal input voltage is supplied to the motor windings. SRMs are self-controlled motors, meaning that no encoder or other sensor is necessary. As the motor is energized and attempts to start, it causes the current in each of the winding sets to increase until the magnetic field generated by the windings is strong enough to start the rotor turning. During each cycle of the electrical current, the rotor shaft turns a small distance.

The motor driver board can maintain a consistent rotation speed and has the ability to precisely control the rotor\'s rotation angle. This specific driver board runs in 8-step sequence, implementing a sine wave current drive with the third harmonic component, which further reduces the motor noise and improves the torque. To avoid thermally overloading the driver board and the motor, both of them must be provided with proper cooling. The board is equipped with several protection features, such as over- heat protection, under-voltage protection, over-current protection and so on.

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