Mitsubishi Electric 800 Series Instruction Manual page 475

NOTE
• Pins No. 2 and 8 provide power to the operation panel or the parameter unit. Do not use these pins for RS-485
communication.
• Do not connect the PU connector to the computer's LAN board, FAX modem socket or telephone modular connector. The
product could be damaged due to differences in electrical specifications.
 Wiring and configuration of PU connector communication system
• System configuration
Operation
panel
Operation
panel
connector
FR-ADP
(option)
RJ-45 connector
• Wiring of computer by RS-485
Computer Side Terminals
Signal name
RDA
RDB
SDA
SDB
RSA
RSB
CSA
CSB
SG
FG
*1 Make connection in accordance with the Instruction Manual of the computer to be used with. Fully check the terminal numbers of the computer
since they vary with the model.
474
5. PARAMETERS
5.12 (N) Operation via communication and its settings
Inverter
PU
RS-485
connector
interface/
terminals
RJ-45 connector
Communication cable
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
Station 0
Computer
Inverter
PU
connector
RJ-45
connector
Communication cable
Cable connection and signal direction
Communication cable
∗1
0.2 mm
Computer
RS-232C
connector
RS-232C
Maximum
cable
15 m
RS-232C-RS-485
converter
Communication cable
Inverter
PU connector
SDA
SDB
RDA
RDB
2
or more
SG
Station 0
Inverter
PU
connector
RJ-45
connector