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Also known as a motor drives, a motor controller converts power from a power supply to a mechanical system. There are several types available to accommodate the type of motor you are using, including variable speed drives, line starters, and motor starters. Motor controllers regulate motor speed, torque, and position outputs. The four basic motor controller drive types include:
They can use either manual or automatic switches, which refers to the motor starting and stopping. With a manual motor controller, if an electrical overload or failure occurs, the device trips, switches off, and stops the motor. Once it switches off, the user must manually turn it back on, making this type best suited for small, simple motors. On the other hand, an automatic controller will start again automatically.