Delta CFP2000 Series User Manual page 374

Situation 3: Power supply unexpected shut down or power loss

Pr.07-13=1 "dEb active, DC bus voltage returns, the output frequency does not return" and
the power does not recover. The keypad displays the "dEb" warning and stops after decelerating
to the lowest running frequency. When the DC bus voltage is lower than the Lv level, the drive
disconnects the soft start relay until the power completely runs out.
Situation 4:

Pr.07-13=2 "dEb active, DC bus voltage returns, the output frequency returns" and power
does not recover. The drive decelerates to 0 Hz. The DC bus voltage continues to decrease until
the voltage is lower than the Lv level and the drive disconnects the soft-start relay. The keypad
displays "dEb" warning until the drive completely runs out of power.
Chapter 12 Description of Parameter SettingsCFP2000
12.1-07-7