INVT Goodrive3000 Series Operation Manual page 128

Goodrive3000 series medium voltage VFD
When the master writes the slave communication address to 0 indicating a broadcast address in a frame, all the salves on
the MODBUS bus receive the frame but do not respond to it.
The communication addresses on the communication network are unique, which is the basis of the point-to-point
communication.
Note: The communication address of a slave cannot be set to 0.
Function
code
Communication baud
P14.01
The function code is used to set the rate of data transmission between the upper computer and the VFD.
Note: The baud rate set on the VFD must be consistent with that on the upper computer. Otherwise, the
communication fails. A greater baud rate indicates faster communication.
Function
code
P14.02
The data format set on the VFD must be consistent with that on the upper computer. Otherwise, the communication fails.
Function
code
P14.03
The function code indicates the communication response delay, that is, the interval from when the VFD completes
receiving data to when it sends response data to the upper computer. If the response delay is shorter than the rectifier
processing time, the rectifier sends response data to the upper computer after processing data. If the delay is longer than
the rectifier processing time, the rectifier does not send response data to the upper computer until the delay is reached
although data has been processed.
Function
code
P14.04
When the function code is set to 0.0, the communication timeout time is invalid.
When the function code is set to a non-zero value, the system reports the "485 communication fault" (CE) if the
communication interval exceeds the value.
In general, the function code is set to 0.0. When continuous communication is required, you can set the function code to
monitor communication status.
Name
0: 1200BPS
1: 2400BPS
2: 4800BPS
3: 9600BPS
rate
4: 19200BPS
5: 38400BPS
6: 57600BPS
Name
0: No check (N, 8, 1) for RTU
1: Even check (E, 8, 1) for RTU
2: Odd check (O, 8, 1) for RTU
Data bit check
3: No check (N, 8, 2) for RTU
4: Even check (E, 8, 2) for RTU
5: Odd check (O, 8, 2) for RTU
Name
Communication
0–200ms
response delay
Name
Communication
0.0 (invalid); 0.1–60.0s
timeout time
Description
Description
Description
Description
-122-
Goodrive3000 inverter
Setting range Default
0–6 4
Setting range Default
0–5 1
Setting range Default
0–200 5
Setting range Default
0.0–60.0 0.0s