PARAMETERS
115
<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.
Note: After making the initial setting of the parameters, always reset the inverter. After
you have changed the communication-related parameters, communication
cannot be made if the inverter is not reset.
Parameter
Number
Name Setting Description
117
Station
number
0 to 31
Station number specified for communication from the
PU connector.
Set the inverter station numbers when two or more
inverters are connected to one personal computer.
48 4800 baud
96 9600 baud118
Communica-
tion speed
192 19200 baud
0 Stop bit length 1 bit
8 data
bits
1 Stop bit length 2 bits
10 Stop bit length 1 bit
119
Stop bit
length/data
length
7 bits
11 Stop bit length 2 bits
0 Absent
1 Odd parity present120
Parity check
presence/
absence
2 Even parity present
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.
121
Number of
communication
retries
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.
During an error, the light fault signal (LF) is given to
the open collector output. Allocate the used terminal
with any of Pr. 190 to Pr. 192 (Output (remote input)
function selection).
0 No communication
0.1 to 999.8
Set the communication check time [seconds]
interval.
If a no-communication state persists for longer than
the permissible time, the inverter will come to an
alarm stop.
122
Communica-
tion check
time interval
9999 Communication check suspension
0 to 150
Set the waiting time between data transmission to
the inverter and response.
123
Waiting time
setting
9999 Set with communication data.
0 Without CR/LF
1 With CR
124
CR, LF
instruction
presence/
absence
2 With CR/LF
4
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