Home / ABB / ABB Drives / ABB AC Drives / ABB ACS880 Drive / ABB ACS880 Drive Options Code / ABB ACS880 Drive +Q982 (FSO-12 or FSO-21 +FPNO-21) Optional Code (Safety functions module)ABB ACS880 Drive +Q982 (FSO-12 or FSO-21 +FPNO-21) Optional Code (Safety functions module)