Patent ID: 8523602

Claim:
A servo motor drive system comprising: a servo motor drive comprising a drive connector socket and a shielded control signal cable including a connector engaged with said drive connector socket, said shielded control signal cable comprising an electrical shield surrounding control signal conductors and said connector comprising a backshell that establishes an electromagnetic interference shield envelope around said control signal conductors, wherein said connector backshell and said drive connector socket cooperate to provide a low impedance electrical connection path from said electrical shield of said control signal cable to a ground path of said servo motor drive; said connector backshell comprising: a metallic shell comprising a base and a cover connected to said base, said base comprising a recess and said shell defining an envelope around said recess when said cover is operably connected to said base; said shell further comprising a first end including a connector opening that opens through said shell into a first portion of said recess and including a mouth that opens through said shell into a second portion of said recess, wherein a terminal end of said control signal cable passes into said recess through said mouth; said shell further comprising first and second flanges located adjacent said first end and projecting laterally outward in opposite first and second directions, respectively, said first and second flanges comprising respective first and second fasteners engaged with the drive connector socket; said first portion of said recess located adjacent said connector opening comprising a connector seat including a portion of a floor of said shell base, said connector seat located between first and second spaced-apart side walls of said base that project outwardly on opposite sides of said floor, said connector seat supporting said connector, with a projecting plug portion of said connector projecting through said connector opening outside said shell; wherein a portion of said cover of said shell contacts the connector when the cover is connected to said base; said shell further comprising an electrical shield contact structure located in said recess and adapted for contacting the electrical shield surrounding the control signal cable terminal end located in said recess and electrically connecting the electrical shield to the shell such that said shell defines an electromagnetic interference shield around the control signal cable terminal end.