When multiple inverters drive the same load, the unbalanced load distribution due to
difference speed causes the inverter with faster speed to carry heavier load. The droop control
characteristics cause the speed droop change along with the addition of load, which can lead to
balanced load distribution.
This parameter is used to adjust the frequency change value of the inverter with droop speed.
F8-16
Over modulation active
Factory default
value
1
Setup range 0 Over modulation inactive
1 Over modulation enabled
Over modulation function means that the inverter can improve the output voltage by adjusting
the use ratio of the bus voltage when the input voltage is relatively low or the inverter always
works under heavy load. When the over modulation is enabled, the output current harmonics
will slightly increase.
This function can select whether the over modulation function is enabled.
F8-17
Setup running time Factory default value 0h
Setup range 0h to 65535h
It is sued to preset the running time of the inverter.
When the accumulated running time (F7-09) reaches this setup running time, the multifunctional
digital DO of the inverter outputs the signal of running time arrival.
F8-18
Start protection selection Factory default value 0
Setup range 0 No protection
1 Protection
This function code is used to improve the safety protection coefîš¿cient. If it is set to 1, it has two
roles: îš¿rst, if the running command exists upon inverter power-on, it must cancel the running
command to remove the running protection status.
Second, if the running command exists upon inverter fault reset, it must cancel the running
command to remove the running protection status.
In this way, it can prevent the automatic running of the motor under unexpected conditions.
F8-19
Frequency detection
value
(FDT level)
Factory default
value
50.00Hz
Setup range 0.00Hz~ maximum frequency
To Next Page
Loading...
Need help?
General