Chapter 9 Appendix
149
The group number and mark of function code is the parameter address for indicating the rules.
High level bytes: F0~FF(Group P), A0-AF(Group A),70-7F (Group E)
Low level bytes: 00 to FF
For example: P3-12, address indicates to F30C.
Note:
Some parameters cannot be changed during operation, some parameters regardless of what
kind of state the inverter in, the parameters cannot be changed. Change the function code
parameters, pay attention to the scope of the parameters, units, and relative instructions.
Function code
group
Communication inquiry address
Inquiry address When Communication
modifies RAM
F0
～
FF
0xF000
～
0xFFFF
0x0000
～
0x0FFF
A0
～
AF
0xA000
～
0xAFFF
0x4000
～
0x4CFF
U0 Group
0x7000
～
0x70FF
Besides, due to EEPROM be frequently stored, it will reduce the lifetime of EEPROM. In the
communication mode, and some function codes don’t have to be stored as long as change
the RAM value.
If it is a P group parameter, to realize this function, it can be realized by changing the high bit
F of the function code address to 0.
If it is a group A parameter, to achieve this function, just change the high bit A of the function
code address to 4; the corresponding function code address is expressed as follows: high
byte: 00~0F (P group), 40~4F ( Group A) Low byte: 00~FF
For example, the function code P3-12 is not stored in the EEPROM, the address is
represented as 030C; the function code A0-05 is not stored in the EEPROM, the address is
represented as 4005; the address indicates that only the RAM can be written, the read
operation cannot be performed, read When it is an invalid address. For all parameters, you
can also use command code 07 to implement this function.
