Danfoss VFD500 Series Manual page 136

Appendix A Modbuscommunication protocol VFD500 high performance vector control frequency inverter user manual
0x1900
（25.00 function
code）
A.7 Register data type
There are several types of register data, and each type of communication setting method is
shown in the following table:
Types of register data
16-bit unsigned number
16-bit signed number
Binary number
"One hundred
thousand" type
0000：no fault
0001：SC protection
0 0 0 2 ： o v e r c u r r e n t d u r i n g
acceleration
0 0 0 3 ： o v e r c u r r e n t d u r i n g
deceleration
0004：overcurrent at constant speed
0 0 0 5 ： o v e r v o l t a g e d u r i n g
acceleration
0 0 0 6 ： o v e r v o l t a g e d u r i n g
deceleration
0007：overvoltage at constant speed
0008：low voltage fault
0009：contactor open
000A：VFD overload
000B：motor overload
000C：power input phase loss
000D：power output phase loss
000E：IGBT module overheat
000F：Reserved
0010：motor overheat
0011：fast overcurrent time out fault
0012：Ground fault
0013：motor auto tuning fault
reserved
0014：drives temperarure detection
fault
0~65535 corresponds to 0xFFFF; the decimal point does
not need to be processed.Example: Set P00.07 to 40.00Hz:
Write 0x0FA0 to the 0x0007 address.
-32768~32767 corresponds to 0x8000~0x7FFFF.
Example: Set P14.01 to -50.0%:
Write 0xFE0C to the 0x0E01 address.
Represents a value of 16 bits.
For example, the content of the 0x0600 address is 0x0012,
which means:Bit1 of r06.00=1, bit4=1; that is, DI1 and DI5
(HDI) are valid.。
"Units" ~ "Thousands" correspond to 0~3bit, 4~7bit,
8~11bit, 12~15bit respectively.
Example: Set the "Unit'digit" of P40.04 to AI1 and "ten's
digit" to AI2:
Write 0x0021 to the 0x2804 address.
0015：current detection fault
0016：PG card feedback fault
0017：Encoder zero detection fault
0018：Reserved
0019：overspeed
001A：too large speed deviation
001B: motor auto tuning fault 1
001C: motor auto tuning fault 2
001D: motor auto tuning fault 3
001E：motor auto tuning fault 4
001F：off load
0020：Eeprom read and write fault
0021：Reserved
0022：Communication time out fault
0023：extension card fault
0024：PID feedback lost during
running
0025：User-defined fault 1
0026：User-defined fault 2
Communication setting method
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