GD310-UL series VFD
Communication protocol
-200-
function code parameters.
Besides, EEPROM is stocked frequently, which may shorten the usage time of EEPROM. For users,
some functions are not necessary to be stocked on the communication mode. The needs can be met
on by changing the value in RAM. Changing the high bit of the function code from 0 to 1 can also
realize the function. For example, the function code P00.07 is not stocked into EEPROM. Only by
changing the value in RAM can set the address to 8007H. This address can only be used in writing
RAM other than reading. If it is used to read, it is an invalid address.
10.4.5.2 The address instruction of other function in Modbus
The master can operate on the parameters of the VFD as well as control the VFD, such as running or
stopping and monitoring the working state of the VFD.
Below is the parameter list of other functions:
Function
instruction
Address
definition
Data meaning instruction
R/W
attribute
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
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%)
2003H
PID feedback, range (0
–1000, 1000 corresponds
to100.0%)
R/W
2004H
Torque setting value (-3000
–3000, 1000 corresponds to
the 100.0% of the rated current of the motor)
R/W
2005H
The upper limit frequency setting during forward rotation
(0
–Fmax (unit: 0.01Hz))
R/W
2006H
The upper limit frequency setting during reverse rotation
(0
–Fmax (unit: 0.01Hz))
R/W
2007H
The upper limit torque of electromotion torque (0
–3000,
1000 corresponds to the 100.0% of the rated current of
the motor)
R/W
2008H
The upper limit torque of braking torque (0
–3000, 1000
corresponds to the 100.0% of the rated current of the
motor)
R/W
Содержание GD310-011P-4-UL
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