Parameter Description VD520 Series Inverter User Manual
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detection levels F8-18 and duration time is greater than the offload detection time F8-19, the inverter
output frequency decreased to 7% of the rated frequency automatically. During the offload protection,
if the load recovery, then frequency inverter automatic recovery to run according to set ferquency.
F8-24
Action Selection Upon
Instantaneous Power
Failure
0: Invalid
1: Decelerate
2: Decelerate to stop
0
○
F8-25
Voltage Restore
Judgment Value Upon
Instantaneous Power
Failure
F0-10~100.0%
90.0%
○
F8-26
Voltage Restore
Judgment Time Upon
Instantaneous Power
Failure
0.00s~100.00s
0.50s
○
F8-27
Voltage Judgment Value
Upon Instantaneous
Power Failure
60.0%~100.0% (Standard bus voltage)
80.0%
○
The function is refers to the instantaneous power failure or voltage falls suddenly, frequency converter
by reducing output rotational speed, reduce the load feedback energy compensation inverter DC bus
voltage is reduced, to keep the inverter to continue to run.
If F8-24 =1, when instantaneous power failure or voltage falls suddenly, frequency converter
deceleration, when the bus voltage returns to normal, inverter normal acceleration to set frequency
operation. Is used as the basis of bus voltage return to normal is bus voltage more than F8-25 set
voltage recovery judging value and duration time more than F8-26 set time. If F8-24=2, when
instantaneous power failure or voltage falls suddenly, inverter deceleration until the stop.
Содержание VD520 Series
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