Mitsubishi Electric FR-F800 Series Instruction Manual page 549

5.12.9 Automatic connection with GOT
When the automatic connection is enabled in the GOT2000 series, the inverter can communicate with the GOT2000 series
with only setting the station number and connecting the GOT. This eliminates the need for the communication parameter
setting.
Pr. Name
117 PU communication
N020 station number
RS-485
331
communication
N030
station number
*1 When Pr.549 Protocol selection = "1" (MODBUS RTU protocol), the setting range is as shown in the parentheses.
*2 When a value outside the setting range is set, the inverter operates at the initial value.
 Automatic connection system configuration
 GOT2000 series automatic recognition
• When the GOT2000 series is connected, the parameters required for the GOT connection are automatically changed by
setting the automatic recognition on the GOT2000 series side.
• Set the station number (Pr.117 or Pr.331) of the inverter before the automatic recognition is performed.
• Connect all the stations of inverters with GOT before the automatic recognition is performed. The inverter newly added
after automatic recognition will not be recognized automatically. (When an inverter is added, perform the initial setting in
Pr.999 Automatic parameter setting or set the automatic recognition on the GOT side again.)
Automatic change item
Communication speed
Data length / stop bit
Parity
Time delay setting
CR/LF selection
Number of communication
retries
Communication check
time interval
Protocol selection
548
5. PARAMETERS
5.12 (N) Communication operation parameters
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Initial value Setting range
0 0 to 31
0 to 31 (0 to
0
*1*2
247)
Four-wire multidrop
GOT2000
Automatic change parameter
PU connector connection
Pr.118
Pr.119
Pr.120
Pr.123
Pr.124
Pr.121
Pr.122
(Pr.549 holds the value before
the automatic recognition.)
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Specify the inverter station number.
The inverter station number setting is required when multiple inverters are
connected to one GOT (PU connector communication).
Specify the inverter station number.
The inverter station number setting is required when multiple inverters are
connected to one GOT (RS-485 terminal communication).
RS-485 terminal connection
Pr.332
Pr.333
Pr.334
Pr.337
Pr.341
Pr.335
Pr.336
Pr.549
Description
Terminating resistor
Setting value after change
Depending on the setting of the connected
device on the GOT side.
9999 (fixed)
9999 (fixed)
0 (fixed to Mitsubishi inverter protocol)