VD120 Series Inverter User Manual Parameter Description
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109
-
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.
F8-28
Maximum Change of
V/F Over Voltage
Stall
0: No limit
1~30000
800
○
By a control over the maximum change of the overvoltage stall, the overvoltage stall can be
suppressed more effectively.
Time
Time
F8-26
Instantaneous power voltage
pick up judgment time
Bus voltage
Instantaneous
power failure
action judgment
voltage F8-27
Running
frequency
(
F8-24=1
:
deceleration
)
Running
frequency
(
F8-24=2
:
Decelerate to Stop time
)
Deceleration time 1
Acceleration time 1
Instantaneous
power failure
judgment voltage
F8-25
Deceleration time 1
Fig 6-16 Schematic diagram of instantaneous power failure
Содержание VD120 Series
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