Shielded Wiring; Connection Diagram - Mitsubishi Electric FX5 User Manual
Melsec iq-f series
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Also See for FX5:
- Programming manual (1112 pages) ,
- User manual (958 pages) ,
- Reference manual (44 pages)
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■PU connector
The customer needs to provide 100 , 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 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 or less).
For details on connection, refer to Page 84 Connection diagram.
Connection diagram
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
4 INVERTER COMMUNICATION
84
4.5 Wiring
Set the termination resistor selector
switch to "110 ".
Twisted pair cable
(0.3 mm
2
0.3 mm
or more
S
S
S
G
D
D
A
B
1
1
Class-D grounding
Inverter
2
or more)
Set the termination resistor selector
switch to "100 ".
R
R
D
D
A
B
1
1
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Troubleshooting
