HNC Electric HV480 Series, Руководство пользователя

Страница: 103 / 179

99
F8 - 18 output power correction factor 0.0%
～
200.0%
【
100.0%
】
When the output power (u0 - 05) does not correspond to the expected value, the output power can be linearly
corrected through this value.
F8 - 19 instantaneous power failure action selection 0
～
2
【
0
】
In the event of an instantaneous power failure or a sudden drop in voltage, the frequency inverter compensates
for the drop in DC bus voltage of the frequency inverter by reducing the output speed, so as to maintain the
frequency inverter's continuous operation.
0: this function is invalid.
1: slow down.
When the power is cut off or the voltage drops suddenly, the frequency inverter slows down. When the bus
voltage returns to normal, the frequency inverter is normal. Speed up recovery to set frequency operation. The basis
for judging the bus voltage to return to normal is that the bus voltage is normal and the duration exceeds the set time
of F8 - 21.
2: slow down and shut down.
In the event of an instantaneous power failure or a sudden drop in voltage, the frequency inverter slows down
until it stops.
F8-20 momentary stop action pauses judgment voltage 80.0%
～
100.0%
【
90.0%
】
F8-21 judging time of instantaneous power failure
voltage rebound
0.00s
～
100.00s
【
0.50s
】
F8-22 instantaneous power failure action judgment
voltage
60.0 % ~ 100.0 % ( standard bus voltage ) [ 80.0 % ]
F8 - 23 ~ F8 - 32 are specially designed for the textile industry. They are used in textile, chemical fiber and other
industries, as well as in occasions where horizontal movement and winding functions are required. They are simply
referred to as swing frequency functions.
The pendulum frequency function is applicable to the pendulum frequency function. It refers to the frequency
output by the frequency inverter, which swings up and down around the set frequency. The track of the operating
frequency on the time axis is shown in figure 5 - 24. The swing amplitude is set by F8 - 23 and F8 - 24. When F8 - 24
is set to 0, the pendulum frequency will not work at this time.
Figure 5 - 24 schematic diagram of swing frequency operation
Output frequency
Time /t
Upper swing frequency
limit frequency
Pendulum frequency
center frequency
Pendulum frequency
lower limit frequency
Sudden jump frequency
Swing amplitude
Oscillating
periodic
Triangular
wave rise time