Terminal Block; Communication Operation - Mitsubishi Electric FR-F720P-0.75K Instruction Manual

2.4.9 RS-485 terminal block
⋅ Conforming standard: EIA-485(RS-485)
⋅ Transmission format: Multidrop link
⋅ Communication speed: MAX 38400bps
⋅ Overall length: 500m
⋅ Connection cable:Twisted pair cable
(4 pairs)

2.4.10 Communication operation

Using the PU connector or RS-485 terminal, you can
perform 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 and
monitor the inverter or read and write to parameters.
For the Mitsubishi inverter protocol (computer link
operation), communication can be performed with the
PU connector and RS-485 terminal.
For the Modbus-RTU protocol, communication can be
performed with the RS-485 terminal.
For further details, Chapter 4 of
refer to
Instruction Manual (Applied).
OPEN
100Ω
RDA1 RDB1
(RXD1+) (RXD1-)
SDA1
TXD
(TXD1+)
P5S SG
(VCC) (GND)
Programmable controller
the
Terminating resistor switch
Factory-set to "OPEN".
Set only the terminating resistor switch of
the remotest inverter to the "100Ω" position.
RDA2 RDB2
RXD
(RXD2+) (RXD2-)
SDB1 SDA2 SDB2
(TXD1-) (TXD2+) (TXD2-)
P5S SG
VCC
(VCC) (GND)
Inverter Inverter Inverter
Wiring
2
Multidrop link
(32 inverters
maximum are
connectable)
27