INVT GD200A-004G-4, Руководство по эксплуатации

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GD200A series VFD Communication protocol
-145-
RTU mode:
The command sent to the VFD:
Read
command
VFD
address
CRC check
Parameters
address
Data number
The response message may be as follows:
Read
command
Data
address
Data content
CRC check
VFD
address
ASCII mode:
The command sent to the VFD:
Read
command
VFD
address
LRC
check
Parameters
address
Data
number
If the operation is successful, the response may be as follows:
Read
command
VFD
address
LRC
check
Data
content
Byte
number
The data content is 0003H, which indicates the VFD is in the stopped state.
9.6.2 Example of writing command 06H
Example 1: make the VFD with the address of 03H to run forward. Refer to the table of other
function parameters, the address of "communication control command" is 2000H and forward
running is 0001. See the following table.
Function instruction
Address
definition
Data meaning instruction R/W characteristics
Communication
control command
2000H
0001H: forward running
R/W
0002H: reverse running
0003H: forward jogging
0004H: reverse jogging
0005H: stop
0006H: coast to stop
(emergency stop)
0007H: fault reset
0008H: jogging stop