KE300A Inverter MODBUS Communication Protocol
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Note:
1.
Group PF: Either the parameter cannot be read, nor be changed.
2.
Group U0: Only for reading parameter, cannot be changed parameters.
3.
Some parameters cannot be changed during operation; some parameters regardless of what kind of
status 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.
Besides, due to EEPROM be frequently stored, it will reduce the lifetime of EEPROM. So in the
communication mode, some function code needn’t be stored, only change the RAM value. To achieve this
function, change high order P of the function code into zero.
Corresponding function code addresses are indicated below:
P0~PF group parameter address:
High byte: 00 to FF, low byte: 00 to FF
A0 group parameter address:
High byte: 40, low byte: 00 to FF
U0 group parameter address:
High byte: 70H, low byte: 00 to FF
For example: P3-12, address indicates to 030C
PC-05, address indicates to 0C05
A0-01, address indicates to 4001
These addresses can only act writing RAM, it cannot act reading. When act reading, it is invalid address.
(2) Stop/start parameter address
Parameter Address
Parameter Description
1000
* Communication setting value (-10000 to 10000) (Decimal)
1001
Running frequency
1002
Bus voltage
1003
Output voltage
1004
Output current
1005
Output power
1006
Output torque
1007
Running speed
1008
DI input flag
1009
DO output status
100A
AI1 voltage
100B
AI2 voltage
100C
Radiator temperature
100D
Counting value input
100E
Length value input
100F
Load speed
