ABB DASD001/3ASC25H241 Analog I/O Extension Board for ACS800 Frequency Converter Product Overview The ABB DASD001 (part number 3ASC25H241) is an analog I/O extension board designed as a key option for ABB's high-performance ACS800 series industrial AC drives. This module significantly enhances the drive's interfacing capabilities with external analog signals, providing both additional analog inputs for speed references and analog outputs for process monitoring. The DASD001