Motoring mode and braking mode
A DC motor can operate in one of two modes - motoring mode or braking mode.
- In the motoring mode electrical energy is converted into mechanical energy, the motor produces the torque that is necessary for rotation
- In the braking mode the situation is opposite - under the influence of external forces, the motor works as a generator, converting mechanical energy into electrical energy. The load torque in this case counteracts the rotation of the motor
A DC motor can rotate both forward or reverse. Operation can be in the motoring mode or in the braking mode and in two variants of the rotation direction. Other words, the DC motor can operate in both directions of rotation and produce both movement and braking. These four modes of operation are four-quadrant DC motor operation.
The power produced by the motor is determined by the product of the angular velocity and the torque. The driving mode is such a mode of operation of the DC motor when the power it produces has a positive sign. The braking mode is the mode of operation in which the product of the angular velocity and the torque has a negative sign.