Example of Thermal Overload Detection Characteristics
F14
H13
H14
Restart Mode after Momentary Power Failure
Restart Mode after Momentary Power Failure, Restart time
Restart Mode after Momentary Power Failure, Frequency fall rate
F14 specifies the action to be taken by the inverter such as trip and restart in the event of a
momentary power failure.
Restart mode after momentary power failure (Mode selection) (F14)
Data for F14
Mo
Description
0
Disable restart
(Trip immediately)
As soon as the DC link bus voltage drops below the
under voltage detection level due to a momentary power
failure, the inverter issues under voltage alarm LU
and
shuts down its output so that the motor enters a
coast-to-stop state.
1
Disable restart
(Trip after
recovery from
power failure)
As soon as the DC link bus voltage drops below the
under voltage detection level due to a momentary power
failure, the inverter shuts down its output so that the
motor enters a coast-to-stop state, but it does not enter the
under voltage state or issue under voltage alarm LU
.
The moment the power is restored, an under voltage
alarm LU
is issued, while the motor remains in a
coast-to-stop state.
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