Wiring Diagram For Multiple Connections; Network Termination - YASKAWA Z1000 CIMR-ZU*A Series Programming Manual

u

Wiring Diagram for Multiple Connections

This section explains proper wiring for multiple connections using BACnet communication.
n RS-485 Interface
Note: The isolated ground (IG) connection is optional but strongly recommended to improve network immunity to electrical interference. Yaskawa
recommends using Belden cable 3106A or equivalent for BACnet network connections.
Note: 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 other
slave devices.
2. Set H5-07 to 1 when using the RS-485 interface.
u

Network Termination

The two ends of the BACnet network line have to be terminated. The drive has a built in termination resistor that can be enabled
or disabled using DIP switch S2. If a drive is located at the end of a network line, enable the termination resistor by setting
DIP switch S2 to the ON position. Disable the termination resistor on all slaves that are not located at the network line end.
YASKAWA SIEP YAIZ1U 03B YASKAWA AC Drive – Z1000 Programming Manual
R–
R+
S–
Controller
S+
IG
Figure B.3 RS-485 Interface
B.3 Connecting to a Network
S–
Drive
S+
R–
S2
R+
IG
OFF
S– Drive
S+
R–
S2
R+
IG
OFF
S–
Drive
S+
R–
S2
R+
ON
IG
B
249