System Configuration - Mitsubishi Electric FR-A740-00023 Instruction Manual

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
⋅ Computer-inverter connection cable
Refer to the following for the cable (RS-232C ⇔ RS-485 converter) for connection of the computer having the RS-232C
interface with the inverter. Commercially available product examples (as of September, 2006)
* The converter cable cannot connect two or more inverters (the computer and inverter are connected on a 1:1 basis). Since
the product is packed with the RS-232C cable and RS-485 cable (10BASE-T + RJ-45 connector), the cable and connector
need not be prepared separately. Contact a maker for details of the product.
⋅ Refer to the following when fabricating the cable on the user side.
Commercially available product examples (as of September, 2006)
* Do not use pins No. 2, 8 of the 10- BASE-T cable.
CAUTION
When performing RS-485 communication with multiple inverters, use the RS-485 terminals. (Refer to page 318)
316
Computer
Inverter
PU
RS-485
connector
interface/
terminals
RJ-45 connector
10BASE-T 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
Type
FA-T-RS40
Product
1) 10BASE-T cable SGLPEV-T 0.5mm × 4P * Mitsubishi Cable Industries, Ltd.
Station 0
Inverter
PU
connector
RJ-45
connector
10BASE-T cable 1)
Cable connection and signal direction
10BASE-T cable
*
0.2mm
* Mitsubishi Electric Engineering Co., Ltd.
Type
Computer
RS-232C
connector
RS-232C
Maximum
cable
15m
RS-232C-RS-485
converter
10BASE-T cable 1)
Inverter
PU connector
RS-485 terminal
SDA
SDB
RDA
RDB
2 or more
SG
Maker
Maker
Station 0
Inverter
PU
connector
RJ-45
connector