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Parameter List
Parameter
RS-485
331
communication
station number
RS-485
332
communication speed
RS-485 communication
333
stop bit length
RS-485 communication
334
parity check selection
RS-485 communication
335
retry count
RS-485
336
communication
check time interval
RS-485 communication
337
waiting time setting
Communication operation
338
command source
Communication
339
speed command
source
RS-485 communication
341
CR/LF selection
Communication
342
EEPROM write
selection
Communication
343
error count
Modbus-RTU
communication
539
check time interval
Protocol selection
549
NET mode
operation command
550
source selection
PU mode operation
command source
551
selection
340
Refer to Pr. 79.
126
Incre
Initial
Name
ments
Value
1
0
1
96
1
1
1
2
1
1
0.1s
0s
1
9999
1
0
1
0
1
1
1
0
1
0
0.1s
9999
1
0
1
9999
1
2
Range
Description
Set the inverter station number.
0 to 31
(same specifications as Pr. 117 ) When "1"
(Modbus-RTU protocol) is set in Pr. 551, the
(0 to 247)
setting range within parenthesis is applied.
3, 6, 12,
Used to select the communication speed.
24, 48, 96,
(same specifications as Pr. 118)
192, 384
Select stop bit length and data length. (same
0, 1, 10, 11
specifications as Pr. 119)
Select the parity check specifications. (same
0, 1, 2
specifications as Pr. 120)
Set the permissible number of retries at
0 to 10,
occurrence of a data receive error. (same
9999
specifications as Pr. 121)
RS-485 communication can be made, but the
0
inverter will come to trip in the NET operation
mode.
0.1 to
Set the communication check time interval.
999.8s
(same specifications as Pr. 122)
No communication check
9999
(signal loss detection)
Set the waiting time between data
0 to 150ms,
transmission to the inverter and response.
9999
(same specifications as Pr. 123)
0
Operation command source communication
1
Operation command source external
0
Speed command source communication
Speed command source external (Frequency
1
setting from communication is invalid,
terminal 2 and 1 setting from external is valid)
Speed command source external (Frequency
2
setting from communication is valid, terminal
2 and 1 setting from external is invalid)
Select presence/absence of CR/LF. (same
0, 1, 2
specifications as Pr. 124)
Parameter values written by communication
0
are written to the EEPROM and RAM.
Parameter values written by communication
1
are written to the RAM.
Displays the number of communication errors
during Modbus-RTU communication.
Read only.
Displayed only when Modbus-RTU protocol is
selected.
Modbus-RTU communication can be made,
0
but the inverter will come to trip in the NET
operation mode.
Set the communication check time interval.
0.1 to 999.8s
(same specifications as Pr. 122)
No communication check (signal loss
9999
detection)
Mitsubishi inverter
0
(computer link)
protocol
1
Modbus-RTU protocol
0
Communication option valid
1
Inverter RS-485 terminal valid
Automatic recognition of the communication
option
9999
Normally, the RS-485 terminals are valid.
Communication option is valid when the
communication option is mounted.
Select the RS-485 terminals as PU operation
1
mode control source.
Select the PU connector as PU operation
2
mode control source.
3
For manufacturer setting. Do not set.
Para
Param
meter
eter
copy
clear
: enabled
× : disabled
×
×
After setting change,
reset (switch power
off, then on) the
inverter.
The setting change
is reflected after a
reset.
All
param
eter
clear
×

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