Mitsubishi FR-F720-00046-NA Instruction Manual page 224

Communication operation and setting
(3) RS-485 terminal system configuration
Connection of a computer to the inverter (1:1 connection)
Computer
RS-485
interface/
terminals
Combination of computer and multiple inverters (1:n connection)
Computer
RS-485
interface terminals
Computer
RS-232C
Converter
Maximum
RS-232C
15m (49.2 feet)
cable
Converter
214
Inverter
RS-485
terminals
*
Twisted pair cable
Station 0
Inverter
RS-485
terminals
*
Twisted pair cable
Station 0
Inverter
RS-485
terminals
*
Twisted pair cable
Computer
Maximum
RS-232C
15m (49.2 feet)
cable
Converter
*Set the terminating resistor switch to the "100Ω" position.
Station 1 Station number n
Inverter Inverter
RS-485 RS-485
terminals terminals
* *
Station 1 Station number n
Inverter Inverter
RS-485 RS-485
terminals terminals
* *
Inverter
RS-485
terminals
*
Twisted pair cable
*Set only the terminating resistor switch of the
remotest inverter to the "100Ω" position.
*Set only the terminating resistor switch of the
remotest inverter to the "100Ω" position.