The WEG CFW-58 Series is intended for speed control of three-phase induction motors. Designed for exclusively industrial or professional use, the VSD incorporates the most advanced technology and full features in a compact product, beyond a set of special functions available. Are you sure you want to continue? WEG CFW-58 VSDs are easy to install and operate. This action might not be possible to undo. WEG VSDs offer several features like easy installation and operation, compact size and have a number of special functions. Note: The CFW58 Frequency Inverter Series were designed for exclusively industrial or professional use.