Appendix I
76
0006:Invalid parameter changes
F9Group - Communication parameter description
This parameter is used to set the data transfer rate between the host computer and the inverter.
Note: the baud rate must be set to the same for the host computer and the inverter, otherwise
communication can not be achieved. The larger baud rate, the faster communication speed.
0: No parity: data format <8, N, 2>
1: Even parity: data format <8, E, 1>
2: Odd parity: data format <8, O, 1>
3: No parity: data format <8-N-1>
Note: the set data for the host computer and the inverter must be the same.
1 to 247, 0for broadcast address
When the address of this unit is set 0, that is broadcast address, the broadcasting function for
the host computer can be achieved.
The address of this unit has uniqueness (in addition to the broadcast address), which is the
basis of peer-to-peer communication for the host computer and the inverter.
Response delay: it refers to the interval time from the end of the inverter receiving data to the
start of it sending data to the host machine. If the response delay is less than the system processing
time, then the response delay time is subject to the system processing time; If the response delay is
longer than the system processing time, after the system finises the data processing, and continues
to wait until the response delay time, and then sends data to the host computer.
Communication time-out parameter is not valid when the function code is set to 0.0s.
Whenthe function code is set to valid, if the interval time between one communication and the
next communication exceeds the communication time-out time, the system will report
communication failure error (Fault ID Err.16). Generally, it is set to invalid. If the parameter can be
set to monitor the communication status in continuous communication system.
Communication protocol selection
0: Non-standard Modbus protocol
1:Standard Modbus protocol
F9.05=1: select standard Modbus protocol.
F9.05=0: when reading command, the number of bytes returned by slave is more 1 byte than
standard Modbus protocol.
Communication read current resolution
Used to determine the current output units when communication reads output current.
Units digit : MODUBUS baud rate
Tens digit:Profibus-DP 0:115200BPS
Hundreds digits:reserved 0: reserved
Thousands digits:CAN baud rate 6:1M