Mitsubishi Electric FR-A520-2.2K Instruction Manual page 128

For the data codes of the parameters, refer to the data code list in the appendices.
z
Parameter Factory
Number Setting
117 0
118 192
119 1
120 2
121 1
122 0 <9999>
123 9999
124 1
<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 Setting
Number
Station
117
0 to 31
number
Communi-
118
cation
speed
192
8 bits
Stop bit
119
length/data
length
7 bits
Parity check
120
presence/
absence
0 to 10
Number of
121
communica-
tion retries
9999
(65535)
Communi-
cation 0.1 to 999.8
122
check time
9999
interval
Waiting 0 to 150ms
123
time setting 9999
CR, LF
presence/
124
absence
selection
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Setting Range
0 to 31
48, 96, 192
Data length 8 0, 1
Data length 7 10, 11
0, 1, 2
0 to 10, 9999
0 to 999.8 sec, 999
0 to 150ms, 9999
0, 1, 2
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 baud
19200 baud
0 Stop bit length 1 bit
1 Stop bit length 2 bits
10 Stop bit length 1 bit
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
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.
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. 195 (output terminal function
selection).
0 No communication
Set the communication check time [sec] interval.
If a no-communication state persists for longer than the permissible time, the
inverter will come to an alarm stop.
Set the waiting time between data transmission to the inverter and response.
Set with communication data.
0 Without CR/LF
1 With CR
2 With CR/LF
115
PARAMETERS
Description