A1-User’s Manual
１３５
8.2.15
KEB
If a power outage occurs, the DC link voltage goes down and a low voltage failure occur
blocking output. This function maintains the DC link voltage by controlling the VFD output
frequency during the outage, thereby helping maintain the VFD between the instantaneous
outage and the low voltage failure for a longer time.
26.01 KEB selection
0: Disable ----- Initial value
1: Enable
Select KEB with when the input power off.
If disable, normal decelerating operation is carried out until low voltage
If enable, VFD DC part is charged with the regenerative energy that is generated from the
motor by controlling the VFD output frequency
26.02 KEB gain – new
Range: 1 ~ 1000 in 1
Initial value: 100
This is the gain used for controlling the KEB operation by using the inertia moment
amount of the load.
If the inertia of load is high, decrease the gain
If the inertia of load is low, increase the gain
