Mitsubishi Electric GT14, User Manual

Page: 566 / 1546

25 - 40
25. INVERTER CONNECTION
25.5 FREQROL Series Inverter Side Settings
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
(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
*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.
*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.
GOT connection
destination
Parameters corresponding to inverter
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
Setting item
*1
Parameter No.
Set value Settings
PU
connector
RS-485
terminal
PU communication
station number/RS-485
communication station
number
Pr.117 Pr.331 0 to 31
25.5.13 Station
number setting
PU communication
speed/RS-485
communication
speed
*2
Pr.118 Pr.332
192
*4 19200bps
PU communication
stop bit length*2
/
RS-485
communication stop bit
length
*2
Pr.119 Pr.333 10
Data length: 7bit
Stop bit length: 1bit
PU communication
parity check
/
RS-485
communication parity
check
*2
Pr.120 Pr.334 1 Odd
Number of PU
communication retries
/
Number of RS-485
communication retries
Pr.121 Pr.335 9999
The inverter will not
come to an alarm
stop.
PU communication
check time interval
/
RS-485
communication check
time interval
Pr.122 Pr.336
9999
*4
Communication check
suspension
PU communication
wait time setting
/
RS-485
communication wait
time setting
Pr.123 Pr.337 0 0ms
PU communication CR/
LF selection
/
RS-485
communication CR/LF
selection
Pr.124 Pr.341
1
*3 With CR, without LF
Protocol selection - Pr.549
0
*3
Mitsubishi inverter
protocol
Operation mode
selection
Pr.79
PU
Connector
1 PU operation mode
RS-485
0
*3
External operation
mode at power on
Communication startup
mode selection
Pr.340
PU
Connector
0
*3
Refer to Pr.79
settings.
RS-485 1
Network operation
mode
Communication
EEPROM write
selection
Pr.342
0
*3
Written to RAM and
EEPROM
Parameter
No.
Set
value
Description
Operation in parameter setting
mode
Pr.999
*1
10
GOT initial settings
(PU connector)
[AUTO] [GOT] [1]
Write
11
GOT initial settings
(RS-485 terminal)
-
Setting item
*1
Parameter No.
Set value Settings
PU
connector
RS-485
terminal