Fuji Electric FRENIC-Ace series - RS-485 Communication Card (OPC-E2-RS)

11.24 RS-485 communication card (OPC-E2-RS)
11-73
SELECTING PERIPHERAL EQUIPMENT
Chap 11
11.24 RS-485 communication card (OPC-E2-RS)
RS-485 communication card (OPC-E2-RS) expands RS-485 communication by RJ-45 connector with
FRENIC-Ace as a standard into 2 connectors to facilitate multi-drop. RS-485 port of this option card cannot be
connected to the keypad. In the same way as RS485 of the standard port, Fuji general-purpose inverter protocol,
Modbus RTU protocol, and loader command are available.
Refer to RS-485 communication users manual for details of each protocol.
Table 11.24-1 RS-485 ports
[
Connector pin arrangement]
Pin number
Pin symbol
SW10=1 (Factry default) SW10=2
1,6,7,8 N.C.
2 SD
3 N.C. DX-
4 DX- DX+
5 DX+ N.C.
[
Names and functions]
Pin names Function
DX+ RS-485 communicationdata (+)
DX- RS-485 communicationdata (-)
SD
This is the terminal for relaying the shield of the shielded cable, insulated from other circuits.
The SD terminal in each connector.
N.C. No connection
PORT1
PORT2
8
1
8
1
Figure 11.24-1 Pin assignment
4
5
4
5
SW9
TXD
RXD
DE/RE
DX+
DX-
Terminal
Resistance
112Ω
PORT1
PORT2
2
2
SW10
3
3
1
2
6～8
6～8
1
1
Figure 11.24-2 Internal circuit