Setting range: 0.00Hz/s–P00.03 (max. output
frequency)
After the grid powers off, the bus voltage drops
to the frequency drop point at transient
power-off, the VFD begins to decrease the
running frequency based on P11.02, to make
the motor generate power again. The returning
power can maintain the bus voltage to ensure a
rated running of the VFD until the VFD is
powered on again.
Note:
1. Adjust the parameter properly to avoid the
stopping caused by VFD protection during the
switching of the grid.
2. Disable input phase loss protection to enable
this function.