7. Interfaces and Communication
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This parameter is used to set transmission speed between host computer and AC drive.
Note that baud rate of host computer must be the same as that of AC drive. Otherwise,
communication shall fail. The higher baud rate is, the faster communication will be.
Function Code Parameter Name Setting Range Default
Fd-01 Data format 0: No check <8,N,2>
1: Even parity check <8,E,1>
2: Odd parity check <8,O,1>
3: No check, data format <8,N,1>
0
Note that data format of host computer must be the same as that of AC drive. Otherwise,
communication shall fail.
Function Code Parameter Name Setting Range Default
Fd-02 Local address 1 to 249
0: Broadcast address
1
This parameter is used to set address of AC drive. This address is unique (except broadcast
address), which is basis for point-to-point communication between host computer and AC drive.
When local address is set to 0 (that is, broadcast address), AC drive can only receive and
execute broadcast commands of host computer, but will not respond to host computer.
Function Code Parameter Name Setting Range Default
Fd-03 Response delay 0 to 20 ms 2 ms
This parameter sets interval between AC drive completing receiving data and AC drive sending
data to host computer. If response delay is shorter than system processing time, system
processing time shall prevail. If response delay is longer than system processing time, system
sends data to host computer only after response delay is up.
Function Code Parameter Name Setting Range Default
Fd-04 Communication timeout 0.0s to 60.0s 0.0s
When AC drive does not receive communication signal within time set in this parameter, it
detects communication timeout fault (Err16).
When this parameter is set to 0.0s, system does not detect communication timeout.
Generally, this parameter is set to 0.0s. In applications with continuous communication, you can
use this parameter to monitor communication status.
Function Code Parameter Name Setting Range Default
Fd-05 Communication protocol 0: Non-standard Modbus protocol
1: Standard Modbus protocol
0
Fd-05 = 1: Standard Modbus protocol
Fd-05 = 0: For read command, the slave returns an additional byte.
Function Code Parameter Name Setting Range Default
Fd-06 Current resolution read
by communication
0: 0.01 A
1: 0.1 A
0
This parameter is used to set unit of output current read by communication.
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