3.4.22 Initial settings and specifications of RS-485 communication (Pr. 117 to Pr. 124)
This function is used to perform required settings for RS-485 communication between the converter and personal
Use PU connector of the converter for communication.
You can perform parameter setting, monitoring, etc. using Mitsubishi inverter protocol.
To make communication between a personal computer and a converter, initialization of the communication
specifications must be made to the converter.
Data communication cannot be made if the initial settings are not made or there is any setting error.
[Parameters related to PU connector communication]
PU communication station number
PU communication speed
PU communication stop bit length
PU communication parity check
Number of PU communication
PU communication waiting time
PU communication CR/LF selection
Always reset the converter after making the initial settings of the parameters. After you change the communication-
related parameters, communication cannot be made until the converter is reset.
Converter station number specification
0 to 31
Set the converter station numbers when two or more
converters are connected to one personal computer.
Set the communication speed.
The setting value 100 equals the communication
48, 96, 192, 384
For example, if 192 is set, the communication speed is
Without parity check
With parity check at odd numbers
With parity check at even numbers
Set the permissible number of retries for unsuccessful
data reception. If it is still unsuccessful after the
0 to 10
permissible number of retries, the converter stops
The converter does not retry communication even when
the communication is unsuccessful.
Set the waiting time between data transmission to the
0 to 150ms
converter and the response.
Set with communication data.
Description of parameters
Stop bit length