INVT Goodrive350 Series Operation Manual page 330

Goodrive350 IP55 High-ingress Protection Series VFD
The command sent from the master is as follows:
03
VFD
address
If the operation is successful, the following response (same as the command transmitted from
the master) is returned:
03
VFD
address
Example 2: Set the max. output frequency to 100Hz for the VFD with the address of 03H.
Function
Name
code
Max. output
P00.03
frequency
According to the number of decimal places, the fieldbus scale of the "Max. output frequency"
(P00.03) is 100. Multiply 100kHz by 100. The value 10000 is obtained, and it is 2710H in the
hexadecimal form.
The command sent from the master is as follows:
03
VFD
address
If the operation is successful, the following response (same as the command transmitted from
the master) is returned:
03
VFD
address
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 continuous writing command 10H
Example 1: Set the VFD whose address is 01H to be forward running at the frequency of 10 Hz.
Refer to section 9.4.4.2 Addresses of other Modbus functions, 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.
06 20 00
Parameter
Write
address
command
06 20 00
Parameter
Write
address
command
Description
P00.04–599.00Hz
06 00 03
Write Parameter
command address
06 00 03
Write Parameter
command address
00 01
Forward
running
00 01
Forward
running
Setting range
P00.04–
27 10
Parameter
data
27 10
Parameter
data
-312-
Communication protocol
42 28
CRC
42 28
CRC
Default
50.00Hz
599.00
62 14
CRC
62 14
CRC
Modify
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