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Computer Link Operation Setting
<Setting>
To make communication between the personal computer and inverter, the
communication specifications must be set to the inverter initially. If initial setting is not
made or there is a setting fault, data transfer cannot be made.
* After making the initial setting of the parameters, always reset the inverter. After you
have changed the communication-related parameters, communication cannot be
made until the inverter is reset.
Param
eter
Name Setting Description
331
Communication
station number
0 to 31
Station number specified for RS-485 communication from
the PU connector.
Set the inverter station numbers when two or more
inverters are connected to one personal computer.
332
Communication
speed
48 4800bps
96 9600bps
192 19200bps
333
Stop bit length/
data length
0 Stop bit length 1 bit
Data length 8 bits
1 Stop bit length 2 bits
10 Stop bit length 1 bit
Data length 7 bits
11 Stop bit length 2 bits
334
Parity check
presence/
absence
0 Absent
1 Odd parity present
2 Even parity present
335
Number of
communication
retries
0 to 10
Set the permissible number of retries at occurrence of a
data receive error.
If the number of consecutive errors exceeds the
permissible value, the inverter will come to an alarm stop
(E.PUE).
9999
(65535)
If a communication error occurs, the inverter will not
come to an alarm stop. At this time, the inverter can be
coasted to a stop by MRS or RES input.
336
Communication
check time
interval
0 No communication
0.1 to 999
Set the communication check time [s] interval.
If a no-communication state persists for longer than the
permissible time, the inverter will come to an alarm stop
(E.PUE).
9999 Communication check suspension
337 Wait time setting
0 to 150
Set the waiting time between data transmission to the
inverter and response.
9999 Set with communication data.
341 CR/LF selection
0 Without CR/LF
1 With CR, without LF
2 With CR/LF