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Mitsubishi Electric FR-A500 Instruction Manual Page 36

Transistorized inverter.
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<Wiring method>
1) Wiring of one RS-485 computer and one inverter
Computer Side Terminals
Signal name
Description
RDA
Receive data
RDB
Receive data
SDA
Send data
SDB
Send data
RSA
Request to send
RSB
Request to send
CSA
Clear to send
CSB
Clear to send
SG
Signal ground
FG
Frame ground
2) Wiring of one RS-485 computer and "n" inverters (several inverters)
Computer
RDA
RDB
SDA
SDB
RSA
RSB
CSA
CSB
SG
FG
Note: 1. Make connections in accordance with the instruction manual of the computer used.
Fully check the terminal numbers of the computer as they differ between models.
2. There may be the influence of reflection depending on the transmission speed and/or
transmission distance. If this reflection hinders communication, provide a terminal resistor. If the
PU connector is used to make a connection, use a distributor as a terminal resistor cannot be
fitted. Connect the terminal resistor only to the inverter remotest from the computer. (Terminal
resistor: 100Ω)
Cable connection and signal direction
10BASE-T Cable
(Note 1)
Cable connection and signal direction
10BASE-T Cable
(Note 1)
SG
Station 1
Inverter
27
INSTALLATION AND WIRING
2
0.2mm or more
SG
SG
Station 2
Station n
Inverter
Inverter
Inverter
PU connector
SDA
SDB
RDA
RDB
SG
2
Termination
resistor
(Note 2)

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    electrical controling conction manual
  • TAtang Jan 03, 2017 11:22:
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  • THAI Sep 28, 2015 08:47:
    MANUAL INVERTER MITSUBISHI a100 .thank you very much
  • sandeep Feb 15, 2014 09:20:
    good manual and it is very good to understand the contant of inverter and i lernt many things in this manual