L2-10: Minimum KEB Time

No. (Hex.)	Name	Description	Default (Range)
L2-10 (048E) Expert	Minimum KEB Time	Sets the minimum length of time to operate the KEB after the drive detects a momentary power loss.	50 ms (0 - 25500 ms)

When you return power while KEB is operating, the drive continues KEB operation until the time set in L2-10 is expired. When the DC bus voltage is less than the level of L2-05 [Undervoltage Detection Lvl (Uv1)] in one of these conditions, KEB operation continues until the time set in L2-10 is expired:

• L2-01 = 3 [Power Loss Ride Through Select = Kinetic Energy Backup: L2-02]

• L2-01 = 4 [Kinetic Energy Backup: CPU Power]

• L2-01 = 5 [Kinetic Energy Backup: DecelStop]

• KEB Ride-Thru 1/2 [H1-xx = 65, 66, 7A, or 7B] is input into the drive.

When you input KEB Ride-Thru, KEB operation continues after the time set in L2-10 is expired. When you cancel KEB Ride-Thru, the motor accelerates again. When you do not input KEB Ride-Thru during the time set in L2-10, the drive accelerates to the frequency reference that the drive had before power loss in the applicable acceleration time.

When L2-01 = 3, 4, or 5, and the DC bus voltage is a minimum of the value of L2-11 [KEB DC Bus Voltage Setpoint], the drive accelerates again after the time set in L2-10 is expired. When the DC bus voltage is less than the L2-11 value, KEB operation continues after the time set in L2-10 is expired.