INVT GD200A-004G-4, Руководство по эксплуатации

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GD200A series VFD Communication protocol
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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 follows (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 is successful, the response may be as follows (the same with the command sent by
the master):
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:
Parameters
address
VFD
address
Write
command
CRC check Forward running