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Droop control
Factory default
value
0.00Hz
F8-15
Setup range 0.00Hz~ 10.00Hz
When multiple drivers drive the same load, the unbalanced load distribution
due to difference speed causes the driver 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 driver
with droop speed.
Over modulation enabled
Factory
default value
1
0 Over modulation inenabled
F8-16
Setup
range
1 Over modulation enabled
Over modulation function means that the driver can improve the output
voltage by adjusting the use ratio of the bus voltage when the input voltage is
relatively low or the driver 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.
Setup running time Factory default value 0h
F8-17
Setup range 0h to 65535h
It is sued to preset the running time of the driver.
When the accumulated running time (F7-09) reaches this setup running time,
the multifunctional digital DO of the driver outputs the signal of running time
arrival.
Start protection
selection
Factory default
value
0
0 no protection
F8-18
Setup
range
1 protection
This function code is used to improve the safety protection coefficient. If it is
set to 1, it has two roles: first, if the running command exists upon driver
power-on, it must cancel the running command to remove the running
protection status.
Second, if the running command exists upon driver fault reset, it must cancel
the running command to remove the running protection status.
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