Servo and stepper motors and VFD have two major EMI-related problems: excessive electromagnetic interference in equipment, and damage to the motor bearings caused by excessive high-frequency currents flowing through them. 

Whether in the design phase, during operation or with a machine retrofit: manufacturers and operators are naturally keen, and often legally obliged, to detect and eliminate potential safety risks for

Machinery that is imported into the USA and/or put into service there is subject to complex specifications that may vary depending on the state or region. Compliance with the testing standards

Standards alone have no legal relevance. They do not achieve legal relevance until they are published in the Official Journal of the EU or are referenced in domestic laws and provisions.