ABB ACS480-04-04A1-4+K492 ACS480-04-04A1-4 ACS480 drive with PROFINET IO. ABB ACS480-04-04A1-4+K492 is an ACS480 general-purpose drive rated 380-480 V AC, three-phase, factory configured with PROFINET IO communication (FPNO-21). It is suitable for pumps, fans, compressors, conveyors and OEM control panels requiring direct PLC or industrial-network integration.