The Model XLS-FA-01 Edge Filter is designed for use with the company’s Xenus family of PWM servo amplifiers. The filter prevents motor drives cables from coupling electrical interference into nearby sensitive circuits. Equipment builders often run motor power cables in the cable harness that also carries signal and other wiring. Electrical noise carried by motor drive current can be coupled into adjacent cables through cable capacitance and inductance. It is possible to minimize cable noise coupling and protect sensitive circuits by using a linear amplifier instead of a PWM type. However, linear amplifiers are big, costly, grossly inefficient, and translate their high inefficiency into excessive heat.