Mitsubishi Electric FR-A720-00030-NA Instruction Manual page 347

Communication operation and setting
(2) PU connector communication system configuration and wiring
 System configuration
FR-DU07
Operation
panel
connector
FR-ADP
(option)
RJ-45 connector
 Connection with RS-485 computer
Computer Side Terminals
Signal name
RDA
RDB
SDA
SDB
RSA
RSB
CSA
CSB
SG
FG
* Make connections in accordance with the manual of the computer used. Fully check the terminal numbers of the computer since
they change with the model.
REMARKS
 Refer to the following when fabricating the cable on the user side.
Commercially available product examples (as of Jan. 2010)
1) Communication cable
2)
RJ-45 connector
* Do not use pins No. 2, 8 of the communication cable.
CAUTION
When performing RS-485 communication with multiple inverters, use the RS-485 terminals. (Refer to page 338)
336
Computer
Inverter
PU
RS-485
connector
interface/
terminals
RJ-45 connector
Communication cable 1)
Description
Receive data
Receive data
Send data
Send data
Request to send
Request to send
Clear to send
Clear to send
Signal ground
Frame ground
Product
SGLPEV-T (Cat5e/300m)
24AWG 4P
5-554720-3
Station 0
Inverter
RS-232C
PU
cable
connector
RJ-45
connector
Communication cable 1)
Cable connection and signal direction
Communication cable
*
0.2mm
Type
Mitsubishi Cable Industries, Ltd.
Tyco Electronics
Computer
RS-232C
connector
Maximum
15m (49.2feet)
RS-232C-RS-485
converter
Communication cable 1)
Inverter
PU connector
RS-485 terminal
SDA
SDB
RDA
RDB
or more
2
SG
Maker
Station 0
Inverter
PU
connector
RJ-45
connector