u Wiring Diagram for Multiple ConnectionsThis section explains proper wiring for multiple connections using BACnet communication.n RS-485 InterfaceNote: The isolated ground (IG) connection is optional but strongly recommended to improve network immunity to electrical interference. Yaskawarecommends using Belden cable 3106A or equivalent for BACnet network connections.DriveDriveDriveS2S2S2S–S+R–R+IGS–S+R–R+IGS–S+R–R+IGOFFOFFONR–R+S–S+IGControllerFigure B.3 RS-485 InterfaceNote: 1. Set DIP switch S2 to the ON position on the drive located at the end of the network. Set DIP switch S2 to the OFF positions on all otherslave devices.2. Set H5-07 to 1 when using the RS-485 interface.u Network TerminationThe two ends of the BACnet network line have to be terminated. The drive has a built in termination resistor that can be enabledor disabled using DIP switch S2. If a drive is located at the end of a network line, enable the termination resistor by settingDIP switch S2 to the ON position. Disable the termination resistor on all slaves that are not located at the network line end.B.3 Connecting to a NetworkYASKAWA SIEP YAIZ1U 03B YASKAWA AC Drive – Z1000 Programming Manual 249B BACnetCommunications
