For F800, A800, F700 And A700 Series (Built-In Rs-485 Terminal) - Mitsubishi Electric FX3U-232-BD User Manual

FX Series PLC User's Manual - Data Communication Edition
Inverter Communication
4.8.5

For F800, A800, F700 and A700 Series (built-in RS-485 terminal)

1. When one inverter is connected
FX -485-BD
3U
FX -485-BD
3G
FX -485ADP(-MB)
3U
RDA
RDB
SDA
SDB
SG
PLC
2. When two or more (up to eight) inverters are connected
FX -485-BD
3U
FX -485-BD
3G
FX -485ADP(-MB)
3U
RDA
RDB
SDA
SDB
0.3mm
SG
Class-D
grounding
PLC
When adopting branches, perform the wiring as shown below:
Connect them
to SDA and
SDB in PLC.
Connect them
to RDA and
RDB in PLC.
Connect it to
SG in PLC.
E-46
Terminal resistor: 110
- FX -485-BD, FX
3U
Set the built-in selector switch.
0.3mm 2 or more
Class-D
grounding
Terminal resistor: 110
- FX -485-BD, FX -485-BD, FX
3U 3G
Set the built-in selector switch.
2 or more
S S S S R R R R
S D D D D D D D D
G B A B A B A B A
1 1 2 2 1 1 2 2
Inverter
+ - + - RXD
+ - + -
TXD TXD
SG SG
VCC
-485-BD, FX -485ADP(-MB):
3G 3U
Twisted pair cable
2
(0.3mm or more)
Set the terminal resistor switch to the
"100" side.
S S R R
S D D D D
G A B A B
1 1 1 1
Inverter
-485ADP(-MB):
3U
Twisted pair cable
2
(0.3mm or more)
Class-D
grounding
S S S S R R R
S S D D D D D D D
G G B A B A B A B
1 1 2 2 1 1 2
Inverter
+ - + - RXD
Connect them to
RDA1 and RDB1 in
+ - + -
next inverter.
Connect them to
SDA1 and SDB1 in
SG SG next inverter.
VCC
Connect it to SG in
next inverter.
Set the terminal resistor switch
to "100" in the inverter located
furthest away from the PLC.
Class-D
grounding
R
S S R R
D S
. . . .
S D D D D
A G
G B A B A
2
1 1 1 1
Inverter
4 Wiring
4.8 Connection Diagram