GD200A series VFD
Communication protocol
-147-
If the operation is successful, the response may be as below (the same with the command sent by
the master):
Parameters
address
VFD
address
Write
command
CRC check
Forward running
ASCII mode:
The command sent to the VFD:
VFD
address
Write
command
Parameters
address
Data
number
LRC
check
If the operation is successful, the response may be as follows (the same with the command sent by
the master):
VFD
address
Write
command
Parameters
address
Data
number
LRC
check
9.6.3 Example of continuous writing command 10H
Example 1: make the VFD whose address is 01H run forward at 10Hz. Refer to the instruction of
2000H and 0001. Set the address of "communication setting frequency" is 2001H and 10Hz
corresponds to 03E8H. See the table below.
Function
instruction
Address
definition
Data meaning instruction
R/W
characteristics
Communication
control
command
2000H
0001H: forward running
R/W
0002H: reverse running
0003H: forward jogging
0004H: reverse jogging
0005H: stop
0006H: coast to stop
0007H: fault reset
0008H: jogging stop
The address of
communication
setting
2001H
Communication setting frequency(0
–Fmax(unit:
0.01Hz))
R/W
2002H
PID given, range(0
–1000, 1000 corresponds
to100.0% )
RTU mode:
The command sent to the VFD:
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