TECDrive20-EU Series Inverter Communication protocol
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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
form 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.
7.4.2 Description of other function addresses in Modbus
The master can operate on the parameters of the inverter as well as control the inverter, such
as running or stopping and monitoring the working state of the inverter.
Below is the parameter table of other functions.
Communication
control command
Address of the
communication n
setting value
Communication setting frequency
(0–Fmax(unit: 0.01Hz))
PID reference, range (0–1000, 1000
corresponds to100.0% )
PID feedback, range (0–1000, 1000
corresponds to100.0% )
Torque setting value (-3000–3000, 1000
corresponds to the 100.0% of the rated
current of the motor)
The upper limit frequency setting during
forward rotation (0–Fmax (unit: 0.01Hz))
The upper limit frequency setting during
reverse rotation (0–Fmax (unit: 0.01Hz))
The upper limit torque of electromotion
torque (0–3000, 1000 corresponds to
the 100.0% of the rated current of the
motor)