This command pertains to activating an ABB variable velocity drive (VSD) or frequency converter, particularly instructing it to begin operation utilizing its major management enter. This assumes the drive is able to run and all security interlocks are happy. This major management supply is usually configured throughout drive setup and may very well be digital inputs, fieldbus communication, or analog alerts.
Beginning a drive from its designated major supply ensures constant and predictable operation primarily based on the meant management scheme. This technique avoids unintended begins from secondary sources or guide interventions, thereby enhancing security and course of stability. Standardized begin procedures utilizing the first supply are important in industrial automation for repeatable and dependable course of management. Traditionally, drive management has advanced from easy hardwired begin/cease buttons to classy network-based command constructions, with an emphasis on security and built-in automation.