User Manual of A90 Series Inverter
212
Function code Function code name
Parameter description
Unit
Default
setting
Attribute
F10.04
Modbus response delay
1 - 20
ms
2
●
The response delay (t
wait2
) is defined as the time interval from the reception of the
valid data frame 1 by the inverter to data parsing and return. To ensure the stable operation
of the protocol chip, the response delay should be set within 1-20ms (it must not be set to 0).
If the communication data involves EEPROM operation, the actual response delay
time will be extended, i.e. “EEPROM operation time + F10.04”.
1
: valid data frame:
sent by the external master station to inverter, in which the function
code, data length and CRC are correct.
Fig. 7-30 shows the data sending segment (t
send
), sending end segment (t
wait1
),
75176-to-sending wait segment (t
wait2
), data return segment (t
return
), and 75176-to-receiving
wait segment (t
wait3
).
t
send
t
wait 1
t
wait 2
t
return
t
wait 3
t
Fig. 7-30 Parsing Diagram of Complete Data Frame Timing
Function
code
Function code name
Parameter description
Unit
Default
setting
Attribute
F10.05
Options of master-slave
communication
function
0: Invalid
1: valid
0
○
F10.06 Master-slave options
0: slave
1: host (Modbus protocol
broadcast transmission)
0
○
F10.07 Data sent by host
0: output frequency
1: set frequency
2: output torque
3: set torque
4: PID setting
5: output current
1
○
