B.3 Connecting to a NetworkThis section explains how to connect the drive to a BACnet network and the network termination required for a connection.u Network Cable ConnectionFollow the instructions below to connect the drive to a BACnet network.1. With the power shut off, connect the communications cable to the drive and the master. Use terminal TB3 for BACnet.E(G) IG R+ R- S+ S-S1 S2 S3 S4 S5 S6 S7 S8 SN SC SPV+ AC A1 A2 A3 FM AM AC 24VRP ACM1 M2 M3 M4MD ME MFMA MB MC(TB3)S–S+R–R+IGSend (–)Send (+)Receive (–)Receive (+)Shield GroundIG R+ R- S+ S-Figure B.2 Serial Communications Cable Connection Terminal (TB3)Note: Separate the communications cables from the main circuit cables and other wiring and power cables. Use shielded cables forthe communications cables, and properly shielded clamps to prevent problems with noise. When using RS-485communications, connect S+ to R+, and S- to R- as shown in the diagram below.2. Check or set the termination resistor selection at all slaves. Use the description in Network Termination on page249 for slaves that are Z1000 drives.3. Switch the power on.4. Set the parameters needed for serial communications (H5-01 through H5-12) using the HOA keypad.5. Shut the power off and wait until the drive display goes out completely.6. Turn the power back on.7. The drive is now ready to begin communicating with the master.B.3 Connecting to a Network248 YASKAWA SIEP YAIZ1U 03B YASKAWA AC Drive – Z1000 Programming Manual
