The ABB SMIO-01C CPU control board for ACS550 inverter drives handles drive logic processing, monitoring, and communication within ABB’s ACS550 series. Commonly used in variable frequency drives for pumps, fans, compressors, conveyors, and HVAC systems, it enables precise motor regulation and real-time system feedback. This internal drive-mounted PCB is compatible with ABB ACS550 series inverter drives (model dependent), draws power from the drive system bus, and provides integrated drive communication interfaces for operation in industrial-rated conditions inside a protected drive enclosure. Common replacements include ABB SMIO-02C, SMIO-01B, and RDCU-02C.
