INVT Goodrive270 Series - Page 321

Goodrive270 series VFD for fan and pump Communication protocol
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Parameter
address
CRC
VFD
address
Write
command
Forward
running
03 06 20 00 00 01 42 28
If the operation is successful, the following response (same as the command transmitted from the
master) is returned:
Parameter
address
CRC
VFD
address
Write
command
Forward
running
03 06 20 00 00 01 42 28
Example 2: Set the max. output frequency to 100 Hz for the VFD with the address of 03H.
Function
code
Name
Description
Setting range
Default
Modify
P00.03
Max. output
frequency
P00.04–400.00Hz
100.00–400.00
50.00Hz
◎
According to the number of decimal places, the fieldbus scale of the "Max. output frequency" (P00.03)
is 100. Multiply 100 Hz by 100. The value 10000 is obtained, and it is 2710H in the hexadecimal form.
The command sent from the master is as follows:
Parameter
address
VFD
address
Write
command
CRC
Parameter
data
03 06 00 03 27 10 62 14
If the operation is successful, the following response (same as the command transmitted from the
master) is returned:
Parameter
address
VFD
address
Write
command
CRC
Parameter
data
03 06 00 03 27 10 62 14
Note: In the preceding command description, spaces are added to a command just for explanatory
purposes. In practical applications, no space is required in the commands.
9.4.7.3 Example of continuously writing command 10H
Example 1: Set the VFD whose address is 01H to be forward running at the frequency of 10 Hz. Refer
to Table 9-1, the address of "Communication-based control command" is 2000H, 0001H indicates
forward running, and the address of "Communication-based value setting" is 2001H, as shown in the
following figure. 10 Hz is 03E8H in the hexadecimal form.
Function
Address
Data description
R/W
Communication-based
control command
2000H
0001H: Run forward
R/W
0002H: Run reversely
0003H: Jog forward
0004H: Jog reversely