Cut Harmful Electrical Noise with Correct VFD Cabling Practices

Selecting and installing the right cable for VFD-motor connections mitigates or eliminates many of the issues that can arise in VFD installations. Making do with cables not specifically designed for VFD applications, such as interlocked armor TECK or continuously welded and corrugated aluminum armor (CCA) cable, can wreak havoc with the sensitive electronic components, network cabling and other wiring found in most modern industrial facilities. Specially-designed VFD cable can provide superior performance in areas such as common mode current (CMC) containment, and can reduce the nuisance trips of alarms or safety circuits caused by signal distortions. This white paper describes how a relatively small investment in properly designing, selecting and installing the right VFD-motor cabling can increase reliability, improve safety and reduce maintenance.