INVT Goodrive390L Series User Manual page 76

Goodrive390L Series Lift-Dedicated VFD
7.1.2.5.1 Function code address format rules
The address of a function code consists of two bytes, with the MSB on the left and LSB on
the right. The high-order byte ranges from 00 to ffH, and the low-order byte also ranges
from 00 to ffH. The MSB is the hexadecimal form of the group number before the dot
mark, and LSB is that of the number behind the dot mark. Take
The group number is 05, that is, the MSB of the parameter address is the hexadecimal
form of 05; and the number behind the dot mark is 06, that is, the LSB is the hexadecimal
form of 05. Therefore, the function code address is 0506H in the hexadecimal form. For
P10.01, the parameter address is 0A01H.
Function code
P10.00 Multi-step speed 0 Multi-step speed 0
P10.01 Multi-step speed 1 Multi-step speed 1
Note:
The parameters in the P99 group are set by the manufacturer and cannot be read or

modified. Some parameters cannot be modified when the VFD is running; some
cannot be modified regardless of the VFD status. Pay attention to the setting range,
unit, and description of a parameter when modifying it.
The service life of the Electrically Erasable Programmable Read-Only Memory

(EEPROM) may be reduced if it is frequently used for storage. Some function codes do
not need to be stored during communication. The application requirements can be
met by modifying the value of the on-chip RAM, that is, modifying the MSB of the
corresponding function code address from 0 to 1. For example, if
stored in the EEPROM, you need only to modify the value in the RAM, that is, set the
address to 8007H. The address can be used only for writing data to the on-chip RAM,
and it is invalid when used for reading data.
7.1.2.5.2 Addresses of other Modbus functions
In addition to modifying the parameters of the VFD, the master can also control the VFD,
such as starting and stopping the VFD, and monitoring the running status of the VFD. The
following table lists other function parameters.
Function
Communication-based
control command
202403 (V1.0）
Name Description
Address
0001H: Run forward
0002H: Run reversely
2000H 0003H: Jog forward
0004H: Jog reversely
0005H: Stop
Communication protocol
Setting range
0.000–
P00.06(m/s)
0.000–
P00.06(m/s)
Data description
P05.06 as an example:
Default Modify
0.000 ○
0.000 ○
P00.07 is not to be
R/W
R/W
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