For A500, F500 And V500 Series (Fr-A5Nr) - Mitsubishi Electric FX3U-232-BD User Manual

FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
4.8.2

For A500, F500 and V500 Series (FR-A5NR)

1. When one inverter is connected
FX -485-BD
3U
FX -485-BD
3G
FX -485-BD
2N
FX -485ADP
2NC
FX -485ADP FX -485ADP(-MB)
0N 3U
RDA RDA
RDB RDB
SDA SDA
SDB SDB
24V
DC
LINK SG
50mA
SG
24+
24G
FG
PLC
Class-D grounding
2. When two or more (up to eight) inverters are connected
FX -485-BD
3U
FX -485-BD
3G
FX -485-BD
2N
FX -485ADP
2NC
FX -485ADP FX -485ADP(-MB)
0N 3U
RDA RDA
RDB RDB
SDA SDA
SDB SDB
24V
LINK SG
DC
SG
50mA
24+
24G
FG
PLC
Class-D grounding
E-38
Terminal resistor: 110 
• FX -485-BD, FX
3U 3G
FX -485ADP(-MB):
3U
Set the built-in selector switch.
• FX -485-BD and FX
2N
Connect a terminal resistor (supplied)
between the RDA and RDB terminals.
Twisted pair cable
(0.3mm 2
2
0.3mm or more
S S R R R
S
D D D D D
G
A B A B R
FR-A5NR
Inverter
Terminal resistor: 110 
• FX -485-BD, FX
3U 3G
FX -485ADP(-MB):
3U
Set the built-in selector switch.
• FX -485-BD and FX
2N
Connect a terminal resistor (supplied)
between the RDA and RDB terminals.
2
0.3mm or more
Class D
grounding
S S R R R
S
D D D D D
G
A B A B R
FR-A5NR
Inverter
For the pin arrangement of the connector,
refer to the connection diagram above for one inverter.
-485-BD and
-485ADP:
2NC
or more)
Connect the terminal resistor connection piece.
Terminal
arrangement
Terminal
block
Screw size:
SDA SDB
M3
Terminal
symbol
-485-BD and
-485ADP:
2NC
Twisted pair cable
2
(0.3mm or more)
Class D
grounding
S S R R R
S S
D D D D D
G G
....
A B A B R
FR-A5NR FR-A5NR
Inverter
4 Wiring
4.8 Connection Diagram
SG A B C
RDA RDB RDR
Connect them to the
communication unit of the PLC.
Connect the terminal
resistor connection
piece to the inverter
located furthest
away from the PLC.
S S R R R
D D D D D
A B A B R
Inverter