What is the difference between speed and position mode?
As the name implies, in the speed mode, a variable command value will cause the motor to move at a given speed or another. In the position mode, a command value will cause the motor to move to a given position. In both cases, the controller will cause the motor to spin, but in the position mode, the controller will also cause the motor to stop when the desired position has been reached. To do this, the controller must “know” what the actual position of the motor’s axle is. In the AX2550, the position is determined by an external potentiometer that the user must affix to the motor.