Delta MH300 Series - Page 461

Chapter 12 Description of Parameter Settings
MH300
12.1-07-8
 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 then the drive disconnects the soft start relay. The keypad displays “dEb”
warning until the drive completely runs out of power.