Example of Thermal Overload Detection Characteristics
F14
Restart Mode after Momentary Power Failure
H13
Restart Mode after Momentary Power Failure, Restart time
Restart Mode after Momentary Power Failure, Frequency fall rate
H14
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
0
1
Mo
Disable restart
As soon as the DC link bus voltage drops below the
(Trip immediately)
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.
Disable restart
As soon as the DC link bus voltage drops below the
(Trip after
under voltage detection level due to a momentary power
recovery from
failure, the inverter shuts down its output so that the
power failure)
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.
Description
5-28