Motor Driver, or amplifiers, are an essential part of a motion control system, and are responsible for linking between Motion Vontrollers/PLC’s to the driven unis. Specifically, drivers amplify low level digital or analog signals to high level energy in the form of voltage and current necessary for driving motors.
In motion control systems, the motion controller computes the operation requirements and motion trajectories, and sends appropriate signals to the driver which then translates these signals into proportional voltages and currents required to accelerate or decelerate the motors whilst taking the load into consideration.