FOTEK GD20-004G-2, Руководство по эксплуатации

Страница: 144 / 171

Goodrive20 Series VFD Communication protocol
-139-
RTU mode:
The command sent to the VFD:
Read
command
VFD
address
CRC check
Parameters
address
Data number
If the response message is as follows.
Read
command
Data
address
Data content CRC check
VFD
address
ASCII mode:
The command sent to the VFD:
Read
command
VFD
address
LRC
check
Parameters
address
Data
number
If the response message is as follows.
Read
command
VFD
address
LRC
check
Data
content
Byte
number
The data content is 0003H. From the table 1, the VFD stops.
7.5.2 Examples of writing command 06H
Example 1: Make the VFD with the address of 03H to run forward. See table 1, the address of
"communication control command" is 2000H and forward running is 0001. See the table as
follows.
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 (emergency stop)
0007H: Fault reset
0008H: Jogging to stop