INVT Goodrive300-21 Series Operation Manual page 92

Goodrive300-21 series dual inverter integrated machine for air compressor
C.2.4. Command code: 10H, continuous writing
Command code 10H means that if the master writes data to the inverter, the data number depends on
the "data number" in the command code. The max. continuous reading number is 16.
C.2.5. The definition of data address
The address definition of the communication data in this part is to control the running of the inverter
and get the state information and relative function parameters of the inverter.
C.2.5.1 The rules of parameter address of the function codes
The parameter address occupies 2 bytes with the high bit is in the front and the low bit in the behind.
The range of high and low byte is: high byte—00–ffH; low byte—00–ffH. The high byte is the group
number before the radix point of the function code and the low byte is the number after the radix point.
But both the high byte and the low byte should be changed into hex. For example P05.06, the group
number before the radix point of the function code is 05, then the high bit of the parameter is 05, the
number after the radix point 06, then the low bit of the parameter is 06, then the function code
address is 0506H and the parameter address of P10.01 is 0A01H.
C.2.5.2 The address instruction of other function in Modbus
This part is the address definition for communication data. It is used to control inverter operation,
obtain inverter state information as well as relevant inverter parameter setting.
Function
instruction
Communication
control command
The address of
the
communication n
setting value
Table C.1 Other function parameters
Address
definition
0001H:forward running
0002H:reverse running
0003H:forward jogging
0004H:reverse jogging
2000H
0005H:stop
0006H:coast to stop (emergency stop)
0007H:fault reset
0008H:jogging stop
Communication setting frequency(0–Fmax(unit:
2001H
0.01Hz))
PID reference, range(0–1000, 1000 corresponds
2002H
to100.0% )
PID feedback, range(0–1000, 1000 corresponds
2003H
to100.0% )
Torque setting value (-3000–3000, 1000
2004H corresponds to the 100.0% of the rated current of
the motor)
Data meaning instruction
- -
89
Appendix C
R/W
characteristic
R/W
R/W
R/W
R/W