Mitsubishi FR-A800

(N) Operation via communication and its settings
PARAMETERS
595
5
GROUP
N
5.15.8 Automatic connection with GOT
 When Pr.549 Protocol selection = "1" (Modbus-RTU protocol), the setting range is as shown in the parentheses.
 When the set value is outside of the setting range, the initial value is applied.
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.)
NOTE
• If the automatic recognition cannot be performed, initial setting in Pr.999 is required.
• For connection to a device other than the GOT2000 series, initial setting in Pr.999 is required.
• For details, refer to the GOT2000 Series Connection Manual (Mitsubishi Product).
Parameters referred to
Pr.999 Automatic parameter setting page 271
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
Initial
value
Setting
range
Description
117
N020
PU communication
station number
0 0 to 31
Set the inverter station numbers.
The inverter station number setting is required when multiple
inverters are connected to one GOT (PU connector
communication).
331
N030
RS-485 communication
station number
0
0 to 31
(0 to 247)

Set the inverter station numbers.
The inverter station number setting is required when multiple
inverters are connected to one GOT (RS-485 terminal
communication).
Automatic change item
Automatic change parameter Setting value after
change
PU connector connection RS-485 terminal connection
Communication speed Pr.118 Pr.332
Depending on the setting
of the connected device
on the GOT side.
Data length/stop bit Pr.119 Pr.333
Parity Pr.120 Pr.334
Waiting time setting Pr.123 Pr.337
CR/LF selection Pr.124 Pr.341
Number of communication retries Pr.121 Pr.335 9999 (fixed)
Communication check time interval Pr.122 Pr.336 9999 (fixed)
Protocol selection
 (Pr.549 holds the value before
the automatic recognition.)
Pr.549
0 (fixed to Mitsubishi
inverter protocol)
GOT2000
Terminating resisto
r
Four-wire multidrop