Mitsubishi Electric FR-D720-008 Instruction Manual page 183

(2) PU connector communication system configuration
Connection of a computer to the inverter (1:1 connection)
FR-PU07
connector
RJ-45 connector
10BASE-T cable 1)
Combination of computer and multiple inverters (1:n connection)
interface/terminals
RS-232C
cable
* The inverters may be affected by reflection depending on the transmission speed or transmission distance. If this reflection hinders communication, provide a
terminating resistor. If the PU connector is used to make a connection, use a distributor since a terminating resistor cannot be fitted. Connect the terminating
resistor to only the inverter remotest from the computer. (Terminating resistor: 100Ω)
REMARKS
Refer to the following when fabricating the cable on the user side.
Examples of products available on the market (as of February, 2008)
Product
1) 10BASE-T cable
∗1 Do not use pins No. 2, 8 of the 10BASE-T cable. (Refer to page 178)
Computer
Inverter
PU
RS-485
interface/terminals
Station 0
Computer
Inverter
PU
connector
RS-485
Distributor
10BASE-T cable 1)
Computer
RS-232C
Connector Station 1
Inverter
Maximum
15m PU
connector
RS-232C RS-485
converter
Distributor
10BASE-T cable 1)
Type
SGLPEV-T 0.5mm × 4P ∗1
Communication operation and setting
Station 0 Computer
Inverter RS-232C
connector
PU
RS-232C
connector
cable
RS-232C
converter
RJ-45
connector
10BASE-T cable 1)
Station n
Station 1 (max. 32 inverters)
Inverter Inverter
PU
connector connector
RJ-45 connector
Station 2 Station n
Inverter Inverter
PU
connector connector
RJ-45 connector
Maker
Mitsubishi Cable Industries, Ltd.
Station 0
Inverter
PU
Maximum
connector
15m
RS-485
RJ-45
connector
10BASE-T cable 1)
PU
Terminating resistor *
PU
Terminating resistor *
4
179