Connecting Freqrol-A800/F800 Series - Mitsubishi Electric GT14 User Manual

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25.5.10 Connecting FREQROL-A800/F800 series

Communication settings
Make the communication settings of the inverter.
Be sure to perform the inverter reset after updating each parameter.
The GOT1000 series does not support the automatic connection of inverters.
(1) Communication port and corresponding parameters
GOT connection
destination
PU connector
RS-485 terminal
(2) Communication settings of inverter
Set the following parameters using the PU (parameter unit).
Set Pr.160 (User group read selection) to 0 [The simple mode and extended parameters can be displayed]
before making the parameter settings.
Do not change these parameters, even though they can be monitored from the GOT. If they are changed,
communication with the GOT is disabled.
*1
Setting item
PU communication station number/RS-485
communication station number
PU communication speed/RS-485 communication
*2
speed
PU communication stop bit length/RS-485
communication stop bit length
PU communication parity check/RS-485
communication parity check
Number of PU communication retries/RS-485
communication retry count
PU communication check time interval/RS-485
communication check time interval
PU communication waiting time setting/RS-485
communication waiting time setting
PU communication CR/LF selection/RS-485
communication CR/LF selection
Protocol selection
Operation mode selection
Communication startup mode selection
Communication EEPROM write selection
*1
Setting items are parameter names described in the manual of FREQROL-A800/F800 series.
*2
Settings on the GOT can be changed.
When changing the settings on the GOT, be sure to change the parameters on the inverter to correspond with the GOT settings.
*3
Inverter default values (No need to change).
*4
Since the value has been set as a default, no setting is required when connecting to the PU connector on the inverter side.
Parameters corresponding to inverter
Pr.79, Pr.117 to Pr.124, Pr.340, Pr.342
Pr.79, Pr.331 to Pr.337, Pr.340 to Pr.342, Pr.549
Parameter No.
PU
RS-485
connector
terminal
Pr.117
Pr.331
Pr.118
Pr.332
Pr.119
Pr.333
*2
Pr.120
Pr.334
*2
Pr.121
Pr.335
Pr.122
Pr.336
Pr.123
Pr.337
Pr.124
Pr.341
-
Pr.549
Pr.79
Pr.340
Pr.342
25.5 FREQROL Series Inverter Side Settings
Set value
0 to 31
25.5.13 Station number setting
*3
192
10
Stop bit length: 1bit
1
The inverter will not come to an
9999
*4
Communication check suspension
9999
0
*3
With CR, without LF
1
*3
Mitsubishi inverter protocol
0
PU connector
1
PU operation mode
*3
RS-485
External operation mode at power on
0
*3
PU connector
Refer to Pr.79 settings.
0
RS-485
1
Network operation mode.
*3
Written to RAM and EEPROM
0
25. INVERTER CONNECTION
Contents of setting
19200bps
Data length: 7bits
Odd
alarm stop.
0ms
25 - 41
25
26
27
28
29
30
31

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