Shielded Wiring; Connection Diagram - Mitsubishi MELSEC iQ-F FX5 User Manual

■PU connector
The customer needs to provide 100 Ω, 1/2 W termination resistors such as the following.
=100 
1 0 1
(10 )
1
• Connect a termination resistor between pin No. 3 (RDA) and pin No. 6 (RDB).
• Connect a distributor to the PU terminal because termination resistors cannot be connected.
• Connect a termination resistor only to the inverter located furthest away from the PLC.
■FR-E7TR
A built-in termination resistor is provided. Connect a 100 Ω termination resistor to the inverter farthest from the PLC.
OPEN
Termination
resistor selector
switch
100 
■FR-A5NR
Connect a termination resistor chip (which is supplied together with the FR-A5NR) between the RDB and RDR terminals of
the inverter farthest from the PLC.

Shielded wiring

Perform Class-D grounding for the shield of one side of the cable (ground resistance: 100 Ω or less).
For details on connection, refer to Page 107 Connection diagram.

Connection diagram

F800/A800/F700P/A700 series
■Built-in RS-485 terminal
• When one inverter is connected
Built-in RS-485 port
FX5-485-BD
FX5-485ADP
RDA
RDB
SDA
SDB
SG
PLC
Class-D grounding
Set the termination resistor selector
switch to "110 ".
Twisted pair cable
(0.3 mm
2
0.3 mm or more
S S S R R
G
D D D D
A B A B
1 1 1 1
Inverter
2
or more)
Set the termination resistor selector
switch to "100 ".
5 INVERTER COMMUNICATION
5.5 Wiring
5
107