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.
Drive
Drive
Drive
S2
S2
S2
S–
S+
R–
R+
IG
S–
S+
R–
R+
IG
S–
S+
R–
R+
IG
OFF
OFF
ON
R–
R+
S–
S+
IG
Controller
Figure C.3 RS-485 Interface
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.
C.3 Connecting to a Network
YASKAWA ELECTRIC TOEP C710616 45F YASKAWA AC Drive – Z1000 User Manual
345
C
BACnet Communications
Summary of Contents for Z1000 CIMR-ZU*A Series
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