Control challenges (motion control)
Motion control in industry is not merely a single challenge. We focus on two topics now: one is the selection (also called sizing) of the motion components, and the second is the control of the motion path itself. Motion components are primarily the motor, the drive (which also may be called an amplifier), and the power train, which consists of coupling and gears. The selection of the motion components (electronic and electro-mechanical) needs to be managed effectively. If the selection of electronics is wrong, then the electronics are unable to sustain the mechanical load and trip out, or if the electronic component is too powerful for the system, it leads to unnecessary expense.
When a motor and a drive unit (or the propulsion unit) are running without anything connected to them, this is called a no-load condition. In this situation, the motor draws its rated current. If the motor is connected to a load via a mechanical coupling or a gear, then...