Mitsubishi Electric FR-A700 Instruction Manual page 209

Parameter
Parameter
Func-
Name
tion
PU communication
124 CR/LF presence/
absence selection
RS-485 communica-
331
tion station
RS-485 communica-
332
tion speed
RS-485 communica-
333
tion stop bit length
RS-485 communica-
tion parity check selec-
334
tion
RS-485 communica-
335
tion retry count
RS-485 communica-
336
tion check time interval
RS-485 communica-
tion waiting time set-
337
ting
RS-485 communica-
341
tion CR/LF selection
Communication
EEPROM write
342
selection
Communication error
343
count
Modbus-RTU commu-
nication check time
539
interval
Protocol selection
549
Tab. 6-1: Parameter overview (29)
FR-A700 EC
Incre- Initial Setting
ments Value Range
0
1 1 1
2
0–31
1 0
(0–247)
3/6/12/24/
1 96 48/96/192/
384
1 1 0/1/10/11
1 2 0/1/2
1 1 0–10/9999
0
0.1s 0s
0.1–9998s
9999
0–150ms/
1 9999
9999
1 1 0/1/2
0
1 0
1
1 0 Read only
0
0.1s 9999
0.1–999.8
9999
0
1 0
1
Description
Without CR/LF
With CR
With CR/LF
Set the inverter station number.
(same specifications as Pr.117 )
When "1" (Modbus-RTU protocol)
is set in Pr.549, the setting range
within parenthesis is applied.
Used to select the communication
speed. (same specifications as
Pr. 118)
Select stop bit length and data
length. (same specifications as
Pr. 119)
Select the parity check specifica-
tions. (same specifications as
Pr. 120)
Set the permissible number of
retries at occurrence of a data
receive error. (same specifications
as Pr. 121)
RS-485 communication can be
made, but the inverter will come to
an alarm stop in the NET operation
mode.
Set the communication check time
interval. (same specifications as
Pr. 122)
No communication check
Set the waiting time between data
transmission to the inverter and
response. (same specifications as
Pr. 123)
Select presence/absence of CR/LF.
(same specifications as Pr. 124)
Parameter values written by com-
munication are written to the
EEPROM and RAM.
Parameter values written by com-
munication are written to the RAM.
Display the number of communi-
cation errors during Modbus-RTU
communication. Read only.
Displayed only when Modbus-RTU
protocol is selected.
Modbus-RTU communication can
be made, but the inverter will
come to an alarm stop in the NET
operation mode.
Set the interval of communication
check time. (same specifications
as Pr. 122)
No communication check (signal
loss detection)
Mitsubishi After setting
inverter (com- change, reset
puter link) (switch power off,
protocol then on) the
inverter. The set-
ting change is
Modbus-RTU
reflected after a
protocol
reset.
Parameter overview
All
Para- Para-
para-
meter meter
meter
copy clear
Refer
clear
to
page
✔: enabled
—: disabled
✔ ✔ ✔
✔ ✔ ✔
✔ ✔ ✔
✔ ✔ ✔
✔ ✔ ✔
✔ ✔ ✔
✔ ✔ ✔
6-445
✔ ✔ ✔
✔ ✔ ✔
✔ ✔ ✔
— — —
✔ ✔ ✔
✔ ✔ ✔
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