Complex sentence: The shaft is usually driven by an electrical motor, which is generally controlled by the an electronic PLC. A PLC (Programmable Logic Controller) electronically controls how specific sections of the conveyor system interact with the products being conveyed.
Split into simpler sentences: The shaft is usually driven by an electrical motor that is generally controlled by the an electronic PLC (Programmable Logic Controller). The PLC electronically controls how specific sections of the conveyor system interact with the products being conveyed.