Mitsubishi Electric FX5 User Manual page 87

• When multiple (up to 16) inverters are connected
Set the termination resistor selector
switch to "110 ".
Built-in RS-485 port
FX5-485-BD
FX5-485ADP
RDA
RDB
SDA
SDB
2
0.3 mm or more
SG
Class-D
grounding
PLC
For branching, perform wiring as shown below:
+
Connect to SDA and
SDB in PLC.
TXD
Connect to RDA and
RDB in PLC.
Connect to SG in PLC.
F700PJ/E700/E700EX/D700/V500 series
■PU connector
• When one inverter is connected (4-wire type)
Built-in RS-485 port
FX5-485-BD
FX5-485ADP
RDA
RDB
SDA
SDB
SG
10BASE-T
Cable
PU (RS-485)
Connector
PLC Inverter
Class-D
grounding
S S S S R R R R
S
S
D D D D D D D D
G
G
B A B A B A B A
1 1 2 2 1 1 2 2
Inverter
RXD
- + - + - +
+ - + - + -
TXD
SG SG SG
VCC
Set the termination resistor selector
switch to "110 ".
Distributor
Connect a termination resistor of 100 ,
5 5
1/2 W (not supplied).
4 4
3 3
When seen from inverter front
6 6
(receptacle side)
1 1
5 4 3 6 1
S S R R
S
D D D D
G
A B A B
5 4 3 6 1
Twisted pair cable
2
(0.3 mm or more)
Class-D
grounding
S S S S R R R R
S S
D D D D D D D D
G
G
B A B A B A B A
1 1 2 2 1 1 2 2
Inverter
RXD
-
Connect to RDA1 and
RDB1 in next inverter.
+ -
Connect to SDA1 and
SDB1 in next inverter.
SG
VCC
Connect to SG in next
inverter.
8
1
Modular jack
Set the termination resistor
selector switch of the farthest
inverter to "100 ".
S S R R
S
D D D D
G
B A B A
1 1 1 1
Inverter
4 INVERTER COMMUNICATION
4.5 Wiring
4
85