Mitsubishi Electric FX3U-232-BD User Manual page 379

FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
2. When two or more (up to eight) inverters are connected
FX
3U
FX
3G
FX
2N
FX
2NC
FX -485ADP FX
0N 3U
RDA
RDB
SDA
SDB
24V
LINK
DC
SG
50mA
24+
24G
FG
Class-D grounding
• FX -485-BD-RJ
3G
FX -485-BD-RJ
3G
RDA
RDB
SDA
SDB
SG
Terminal
resistor
Connector metal frame
(Terminal resistor
selector switch: 110Ω)
(Wiring circuit switch:
2 pair)
PLC
Terminal resistor: 110 
• FX -485-BD, FX
3U
FX -485ADP(-MB):
3U
Set the built-in selector switch.
• FX -485-BD and FX
2N
Connect a terminal resistor (supplied)
-485-BD
-485-BD between the RDA and RDB terminals.
-485-BD
-485ADP
-485ADP(-MB)
RDA
5
RDB
4
SDA
3
SDB
6
SG
1
10BASE-T
cable
PU (RS-485)
connector
PLC Inverter
Distributor (BMJ-8-28N)
5 5
4 4
3 3
6 6
1 1
2 2
7 7
8 8
5 4 3 6 1 2 7 8
5 4 3 6 1 2 7 8
PU(RJ45)
connector
Inverter
-485-BD and
3G
-485ADP:
2NC
Distributor Distributor
5 5
4 4
3 3
6 6
1 1
5 4 3 6 1 5 4 3 6 1
PU (RS-485)
S S R R S S R
S
D D D D connector D D D
G
A B A B A B A
Inverter
5 4 3 6 1 5 4 3 6 1
For the pin arrangement in the connector,
refer to the connection diagram for one inverter.
Distributor (BMJ-8-28N)
5 5
4 4
3 3
6 6
1 1
2 2
7 7
8 8
PU(RJ45)
connector
Inverter
4.8 Connection Diagram
Connect a terminal resistor of
100 , 1/2 W (not supplied) to
the most distant inverter.
Distributor
5 5 5
4 4 4
3 3 3
6 6 6
1 1 1
5 4 3 6 1
PU (RS-485)
R S S R R
S S
D connector D D D D
...
G G
B A B A B
Inverter
5 4 3 6 1
Connect a terminal resistor of
100 Ω, 1/2 W (not supplied) to
the most distant inverter.
5
4
3
6
1
2
7
8
5 4 3 6 1 2 7 8
5 4 3 6 1 2 7 8
4 Wiring
A
B
C
D
E
F
G
H
I
Apx.A
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