Mitsubishi FX3U-232-BD User Manual page 315

FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
4.8.2 For A500 Series (FR-A5NR)
1. When one inverter is connected
FX
3U
FX
2N
FX
2NC
FX -485ADP FX
0N 3U
RDA RDA
RDB RDB
SDA SDA
SDB SDB
24V
DC
LINK SG
50mA
SG
24+
24G
FG
Class-D grounding
2. When two or more (up to eight) inverters are connected
FX -485-BD
3U
FX -485-BD
2N
FX
2NC
FX -485ADP FX -485ADP(-MB)
0N 3U
RDA RDA
RDB RDB
SDA SDA
SDB SDB
24V
LINK SG
DC
50mA SG
24+
24G
FG
PLC
Class-D grounding
Terminal resistor: 110 Ω
• FX -485-BD and FX
3U
Set the built-in selector switch.
-485-BD
• FX -485-BD and FX
2N
-485-BD
Connect a terminal resistor (supplied)
-485ADP
between the RDA and RDB terminals.
-485ADP(-MB)
0.3mm 2 or more
PLC
Terminal resistor: 110 Ω
• FX
3U
Set the built-in selector switch.
• FX
2N
Connect a terminal resistor (supplied)
between the RDA and RDB terminals.
-485ADP
2
0.3mm or more
S
G
FR-A5NR
-485ADP(-MB):
3U
-485ADP:
2NC
Twisted pair cable
(0.3mm 2 or more)
Connect the terminal resistor connection piece.
Terminal
arrangement
S S R R R
S
D D D D D
Terminal
G
A B A B R
block
Screw size:
FR-A5NR
M3
Inverter
Terminal
symbol
-485-BD and FX -485ADP(-MB):
3U
-485-BD and FX -485ADP:
2NC
Twisted pair cable
2
(0.3mm or more)
Class D
grounding
S S R R R S S R R
S
D D D D D D D D D
G
A B A B R A B A B
FR-A5NR
Inverter Inverter
For the pin arrangement of the connector,
refer to the connection diagram above for one inverter.
4.8 Connection Diagram
SG
SDA SDB 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.
Class D
grounding
R S S R R R
S
D D D D D D
G
....
R A B A B R
FR-A5NR
Inverter
4 Wiring
A
B
C
A B C
D
E
F
G
H
I
Apx.
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