Mitsubishi Electric 800 Series, Instruction Manual, Page: 60 / 727

Communication connectors and terminals
INSTALLATION AND WIRING
59
2
 USB device communication
The inverter can be connected to a personal computer with a USB (Ver. 1.1) cable.
Parameter setting and monitoring can be performed by using FR Configurator2.
NOTE
• For the details of FR Configurator2, refer to the Instruction Manual of FR Configurator2.
2.7.3
RS-485 terminal block
 Communication operation
The RS-485 terminals enable communication operation from a personal computer, etc. When the PU connector is connected
with a personal, FA or other computer by a communication cable, a user program can run to monitor the inverter or read and
write parameters.
Communication can be performed with the Mitsubishi inverter protocol (computer link operation) and MODBUS RTU protocol.
For the details, refer to
page 543 .
Interface
Conforms to USB1.1
Transmission speed
12 Mbps
Wiring length
Maximum 5 m
Connector
USB mini B connector (receptacle)
Power supply
Self-powered
Conforming standard
EIA-485 (RS-485)
Transmission format
Multidrop link
Communication speed
Maximum 115200 bps
Overall length
500 m
Connection cable
Twisted pair cable (4 pairs)
Terminating resistor switch
Initially-set to "OPEN".
Set only the terminating resistor switch of
the remotest inverter to the "100Ω" position.
OPEN
100Ω
+ - + TXD RXD - VCC GND
+ - + TXD RXD - VCC GND
RDA1
(RXD1+)
RDB1
(RXD1-)
RDA2
(RXD2+)
RDB2
(RXD2-)
SDA1
(TXD1+)
SDB1
(TXD1-)
SDA2
(TXD2+)
SDB2
(TXD2-)
P5S
(VCC)
SG
(GND)
P5S
(VCC)
SG
(GND)