Connecting To Freqrol-A700 Series - Mitsubishi Electric GT14 User Manual

25.5.9 Connecting to FREQROL-
A700 series

Communication settings
Make the communication settings of the inverter.
Be sure to perform the inverter reset after updating
each parameter.
(1) Communication port and corresponding parameters
GOT connection
Parameters corresponding to inverter
destination
PU connector Pr.79, Pr.117 to Pr.124, Pr.340, Pr.342
RS-485 terminal Pr.79, Pr.331 to Pr.337, Pr.340 to Pr.342, Pr.549
(2) Communication settings of inverter
Set the following parameters using the PU (parameter
unit).
Do not change these parameters, even though they
can be monitored from the GOT. If they are changed,
communication with the GOT is disabled
Parameter No.
*1
Setting item
PU RS-485
connector terminal
PU communication
station number/RS-485
Pr.117
communication station
number
PU communication
speed/RS-485
Pr.118
communication
*2
speed
PU communication
stop bit length*2
/
Pr.119
RS-485
communication stop bit
*2
length
PU communication
parity check
/
Pr.120
RS-485
communication parity
*2
check
Number of PU
communication retries
/ Pr.121
Number of RS-485
communication retries
PU communication
check time interval
/
Pr.122
RS-485
communication check
time interval
PU communication
wait time setting
/
Pr.123
RS-485
communication wait
time setting
PU communication CR/
LF selection
/
Pr.124
RS-485
communication CR/LF
selection
Protocol selection -
25 - 40
25. INVERTER CONNECTION
25.5 FREQROL Series Inverter Side Settings
Set value Settings
Pr.331 0 to 31
25.5.13 Station
number setting
*4
Pr.332 19200bps
192
Data length: 7bit
Pr.333 10
Stop bit length: 1bit
Pr.334 1 Odd
The inverter will not
Pr.335 9999 come to an alarm
stop.
Communication check
*4
Pr.336
9999
suspension
Pr.337 0 0ms
*3
Pr.341 With CR, without LF
1
Mitsubishi inverter
*3
Pr.549
0
protocol
Parameter No.
*1
Setting item
PU RS-485
connector terminal
Operation mode
Pr.79
selection
Communication startup
Pr.340
mode selection
Communication
EEPROM write Pr.342
selection
*1 Setting items are parameter names described in the manual
of FREQROL-A700 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 the GOT is connected to the PU connector on
the inverter side.
HINT HINT HINT
(1) Automatic setting with Pr.999
If Pr.999 is set as the following, the communication
settings other than [PU communication station
number] and [Communication EEPROM write
selection] can be automatically set in a batch to
the default communication settings of the GOT
side.
Parameter Set
Description
No. value
GOT initial settings
10
(PU connector)
*1
Pr.999
GOT initial settings
11
(RS-485 terminal)
*1 When the value of Pr.999 is monitored, 9999 is always
monitored.
(2) Inverters available for automatic batch setting
Parameters are not automatically set in a batch
depending on the SERIAL (production number)
symbol of the inverter to be used. For details,
contact your local distributor.
Set value Settings
PU
1 PU operation mode
Connector
External operation
*3
RS-485
0
mode at power on
PU Refer to Pr.79
*3
0
Connector settings.
Network operation
RS-485 1
mode
Written to RAM and
*3
0
EEPROM
Operation in parameter setting
mode
[AUTO] [GOT] [1]
Write
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