INVT GD20-004G-2-EU, Operation Manual

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Goodrive20-EU series VFD Communication protocol
136
Function
instruction
Address
definition
Data meaning instruction
R/W
characteristics
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
If the operation is successful, the response may be as below (the same with the command
sent by the master):
Parameters
address
CRC check
VFD
address
Write
command
Forward
running
ASCII mode:
The command sent to the VFD:
Parameters
address
VFD
address
Write
command
LRC
check
Data
number
If the operation succeeds, the response message is as follows:
Parameters
address
VFD
address
Write
command
LRC
check
Data
number
Example 2: set the max. output frequency of the VFD with the address of 03H as100Hz.
Function
code
Name Details
Setting
range
Default
value
Modify
P00.03
Max.
output
frequency
P00.04
–600.00Hz
(400.00Hz)
10.00
–
600.00
50.00Hz
◎
See the figures behind the radix point, the fieldbus ratio value of the max. output frequency
(P00.03) is 100. 100Hz timed by 100 is 10000 and the corresponding hex is 2710H.
RTU mode:
The command sent by the master: