Mitsubishi Electric FR-A700 Instruction Manual page 622

Communication operation and setting
RS-485 terminal system configuration
● Connection of a computer to the inverter (1 : 1connection)
Fig. 6-216: Connection of a computer to one inverter
Set the terminating resistor switch to the "100 Ω" position.
● Combination of computer and multiple inverters (1 : n connection)
Fig. 6-217: Connection of a computer to several inverters
Set only the terminating resistor switch of the remotest inverter to the "100 Ω" position.
6 - 442
PC
RS-485
interface
Twisted pair cable
PC
RS-485
interface
Twisted pair cable
PC
RS-232C
interface
Maximum
RS-232
15m
cable
Converter
Twisted pair cable
Inverter
RS-485
terminal
RS-232C
Station 0 Station 1
RS-485 RS-485
terminal terminal
Station 0 Station 1
RS-485 RS-485
terminal terminal
PC
Inverter
terminal
Maximum
15m
cable
Converter
Twisted pair cable
Station n
RS-485
terminal
Station n
RS-485
terminal
Parameter
RS-485
I001214E
I001215E