The DCS880 series of dc variable-speed drives (VSDs) provides users with the option to continue using dc technology while better aligning with ac advancements. The VSDs are built on the company’s all-compatible, common drive platform, sharing the same control panel, features and tools as recent- and future-generation ABB drives. They also can be integrated with ABB Ability monitoring services. Monitoring parameters include drive availability, environmental conditions and fault events. The drives feature built-in functions such as safe torque off (STO), which prevents unexpected startup of machinery. This protects people and equipment by reducing risk during operation.