YASKAWA CIMR-ZU A Series Programming Manual page 287

irin Dia ram or Multiple Connections
This section explains proper wiring for multiple connections using BACnet communication.
S 8 Inter ace
The isolated ground (IG) connection is optional but strongly recommended to improve network immunity to electrical interference.
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
Note:
slave devices.
2. Set H5-07 to 1 when using the RS-485 interface.
Net or ermination
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.
R–
R+
S–
Controller
S+
IG
Fi ure B
S–
Drive
S+
R–
S2
R+
IG
OFF
S– Drive
S+
R–
S2
R+
IG
OFF
S–
Drive
S+
R–
S2
R+
ON
IG
S 8 Inter ace
B Connectin to a Net or
B
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