Part Number Scheme AKD-N Part number scheme for AKD-N near servo drives. File Versions Release Date 09 Jan 2018 pns-akd-n_e.pdf (225.89 KB) Release/Version 01/2018 Release Description Part number scheme for AKD-N near servo drives. Release Date 14 Oct 2014 akd-c-n_e.pdf (21.97 KB) Release/Version – Release Description Part number scheme for AKD-C power supplies, and AKD-N drives.