Fuji Electric FRENIC-Ace series - Page 530

9.1 Overview of RS-485 Communication
9-6
Multi-drop connection using the RS-485 communication port 2 (RJ-45 connector) (only for FRN-E2
■
-2/4/7GA, J)
For connecting inverters in multi-drop connection, use the branch adapters for multi-drop connection as shown
below.
Figure 9.1-2 Multi-drop Connection for RS-485 Communication Port 2 (Using the RJ-45 Connector)
Use the cables and converters meeting the modes for connecting the RS-485 communication ports.
(Refer to
“[ 3 ] Requirements for the cable (COM port 2: for RS-485 connector)” in “9.1.4 RS-
485
connection devices
.”)
RS-232C/RS-485
converter
Terminating resistor
ON (100-120 Ω)
Computer
(FRENIC Loader)
Branch adapter for
multi-drop
RJ-45 connector
RJ-45 connector
RJ-45 connector
Terminating resistor
switch SW6 OFF
Terminating resistor
switch SW6 OFF
Terminating resistor
switch SW6 ON