Mitsubishi Electric FR-CC2-N Series, Инструкция по эксплуатации

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108
5. PARAMETERS
5.7 (N) Communication operation parameters
 Parameters related to RS-485 terminal communication
*1 When "1" (MODBUS RTU protocol) is set in Pr.549 , the setting range within parentheses is applied.
*2 When a value outside the setting range is set, the converter operates at the initial value.
*3 In the MODBUS RTU protocol, the data length is fixed at 8 bits.
*4 In the MODBUS RTU protocol, Pr.334 setting is applied as the stop bit length. (Refer to page 119 .)
*5 In the MODBUS RTU protocol, this is invalid.
NOTE
• The monitor items and parameter settings can be read during communication with the Pr.336 RS-485 communication check
time interval = "0 (initial value)" setting, but a converter unit communication error (E.SER) occurs. To perform operation or
parameter writing via communication, set "9999" or a large setting value in Pr.336 . (The setting value is determined by the
computer program.) (Refer to page 114 .)
• Always reset the converter after making the initial settings of the parameters. After changing the communication-related
parameters, communication cannot be made until the converter is reset.
5.7.5 Mitsubishi inverter protocol (computer link
communication)
Parameter setting and monitoring, etc. are possible through communication using the Mitsubishi inverter protocol (computer
link communication) via the PU connector or RS-485 terminals on the converter unit.
Pr. Name
Initial
value Setting
range
Description
331
N030 RS-485 communication
station number
0
0 to 31 (0 to
247)
*1*2
Specify the converter unit station number.
(Same specifications as
Pr.117 )
332
N031 RS-485 communication
speed
96
3, 6, 12, 24,
48, 96, 192,
384, 576,
768, 1152
Select the communication speed.
(Same specifications as
Pr.118 )
N032
RS-485 communication
data length
0 0, 1
Select the data length. (Same specifications as P.N022 )
*3
N033
RS-485 communication
stop bit length
1 0, 1
Select the stop bit length. (Same specifications as P.N023 )
*4
333
RS-485 communication
stop bit length / data
length
1 0, 1, 10, 11
Select the stop bit length and data bit length. (Same specifications as
Pr.119 )
*3*4
334
N034 RS-485 communication
parity check selection
2 0, 1, 2
Select the parity check specifications.
(Same specifications as
Pr.120 )
335
N035
*5
RS-485 communication
retry count
1
0 to 10,
9999 Set the permissible number of retries for unsuccessful data reception.
(Same specifications as
Pr.121 )
336
N036
*5
RS-485 communication
check time interval
0 s
0 The RS-485 communication is available, but a communication error occurs.
0.1 to 999.8
s Set the interval of the communication check (signal loss detection) time
(Same specifications as
Pr.122 )
9999 No communication check (signal loss detection)
337
N037
*5
RS-485 communication
waiting time setting
9999
0 to 150 ms,
9999 Set the time delay between data transmission to the converter unit and the
response. (Same specifications as
Pr.123 )
341
N038
*5
RS-485 communication
CR/LF selection
1 0, 1, 2
Select the presence/absence of CR/LF.
(Same specifications as
Pr.124 )