Goodrive20-EU Series VFD
Communication protocol
-138-
ASCII mode:
The command sent to the VFD:
Read
command
VFD
address
LRC
check
Parameters
address
Data
number
If the operation succeeds, the response message is as follows:
Read
command
VFD
address
LRC
check
Data
content
Byte
number
The data content is 0003H. According to the parameter table of other functions, the VFD stops.
7.5.2 Examples of write command 06H
Example 1: Make the VFD with the address of 03H to run forward. See section 7.4.2
"Description of other function addresses in Modbus", the address of "Communication-based
control command" is 2000H, and 0001H indicates forward running. See the table below.
Function
Address
Data description
R/W
characteristics
Communication-based
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
RTU mode:
The command sent by the master:
Parameters
address
CRC check
VFD
address
Write
command
Forward
running
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