Connecting Freqrol-A800/F800 Series - Mitsubishi Electric GT1685 Connection Manual

15.5.11 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.
Setting item
PU communication station number/RS-485
communication station number
PU communication speed/RS-485
communication 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.
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15. INVERTER CONNECTION
15.5 FREQROL Series Inverter Side Settings
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.
*1
PU connector
Pr.117
Pr.118
*2
Pr.119
*2
Pr.120
*2
Pr.121
Pr.122
Pr.123
Pr.124
―
Set value
RS-485
Pr.331 0 to 31
Pr.332
192
Pr.333 10
Pr.334 1
Pr.335 9999
Pr.336
9999
Pr.337 0
*3
Pr.341
1
*3
Pr.549
0
PU
connector
Pr.79
RS-485
PU
connector
Pr.340
RS-485
*3
Pr.342
0
Contents of setting
15.5.14 Station number
setting
*4
19200bps
Data length: 7bit
Stop bit length: 1bit
Odd
The inverter will not come to an
alarm stop.
Communication check
*4
suspension
0ms
With CR, without LF
Mitsubishi Electric inverter
protocol
1 PU operation mode
External operation mode at
*3
0
power on
*3
Refer to Pr.79 settings.
0
1 Network operation mode.
Written to RAM and EEPROM