7 Procedure B36 YASKAWA TOEP YEACOM 06A V1000 Option PROFINET SI-EP3/V Installation Manual6. Select one of the four different length ground wires packaged with the option,Figure 30. Choose the proper ground wire by test fitting the screw (size M3.5 to M6)into each of the four drive-side ground ring lugs prior to installation. Ground wireselection varies by drive model.Figure 30Figure 30 Ground Wire Selection7. Connect the ground wire to the drive using the lower right screw that fastens thedrive to the case.Tool tip: Use a long-shaft Phillips screwdriver. A magnetic tip screwdriver will aid inkeeping the screw captive during removal and installation.Figure 31Figure 31 Drive-side Ground Wire ConnectionTo Option ground screw FEScrew size: M3To drive ground terminalScrew size: M3.5 to M6Ground WireLower-right screwNEMA 4X DriveGround wireDrive-sideground terminalScrew size:M3.5 to M6Option groundscrew FEScrew size: M3Long-shaft magnetictip screwdriver