FOTEK GD20-004G-2, Руководство по эксплуатации

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Goodrive20 Series VFD Communication protocol
-140-
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 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 as 100Hz.
Function
code
Name Description Default Modify
P00.03
Max. output
frequency
Used to set the max. output frequency of
the VFD. It is the basis of frequency setup
and the acceleration/deceleration.
Setting range: P00.04
–400.00Hz
50.00Hz ◎
See the figures behind the radix point, the fieldbus ratio value of 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: