Mitsubishi Electric FR-A520-0.4K-NA Instruction Manual page 127

For the data codes of the parameters, refer to the data code list in the appendices.
z
Parameter Factory
Number Setting
117
118
119
120
121
122 0 <9999>
123
124
<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
Name
Number
Station
117
number
Communi-
118
cation
speed
Stop bit
119
length/data
length
Parity check
120
presence/
absence
Number of
121
communica-
tion retries
Communi-
cation
122
check time
interval
Waiting
123
time setting
CR, LF
presence/
124
absence
selection
Setting Range
0 0 to 31
192 48, 96, 192
Data length 8
1
Data length 7
2 0, 1, 2
1 0 to 10, 9999
0 to 999.8 sec, 999
9999 0 to 150ms, 9999
1 0, 1, 2
Setting
Station number specified for communication from the PU connector.
0 to 31 Set the inverter station numbers when two or more inverters are connected to one
personal computer.
48 4800 baud
96 9600 baud
192 19200 baud
0 Stop bit length 1 bit
8 bits
1 Stop bit length 2 bits
10 Stop bit length 1 bit
7 bits
11 Stop bit length 2 bits
0 Absent
1 Odd parity present
2 Even parity present
Set the permissible number of retries at occurrence of data receive error. If the
0 to 10 number of consecutive errors exceeds the permissible value, the inverter will come
to an alarm stop.
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 RESET input.
9999
During an error, the light fault signal (LF) is given to the open collector output.
(65535)
Allocate the used terminal with any of Pr. 190 to Pr. 195 (output terminal function
selection).
0 No communication
0.1 to 999.8 Set the communication check time [sec] interval.
If a no-communication state persists for longer than the permissible time, the
9999
inverter will come to an alarm stop.
0 to 150ms Set the waiting time between data transmission to the inverter and response.
9999 Set with communication data.
0 Without CR/LF
1 With CR
2 With CR/LF
0, 1
10, 11
Description
115
PARAMETERS