LiteOn EVO 6800 Series, Manual, Page: 170 / 261

170
Figure 6.74 PTC Characteristics
Set the overheat detection using a PTC in P1-03 to P1-04 as explained in the section below.
P2
Momentary Power Loss

P2-00 Momentary Power Loss Operation Selection
Selects the drive operation when a momentary power loss occurs (the main circuit DC voltage
falls below the P2-03 level). The drive can automatically return to the operation it was
performing before the power loss.
No. Name Setting Range Default
P2-00 Momentary Power Loss Operation Selection 0 to 3 0
0 : Disabled (Default)
When the power supply falls below the P2-03 (Uv Detection Level) value for 10ms, a Uv
(Undervoltage) fault will be triggered to shut off the drive output and the motor coasts to stop.
1 : Recover if CPU Has Power
When the CPU of the drive is powered after a momentary power loss, the drive will resume the
operation. The KEB function will not perform even if KEB is enabled.
2 : KEB function if CPU Has Power
When a momentary power loss occurs, the drive decelearates using regenerative power from
the motor. If the power returns, the drive accelearates to the frequency it was running before
the power loss. If the powe does not return and the output frequency falls below the minimum
output frequency, the drive output will be shut off.
in this mode, Multifunction contact input
(E1-xx = 56/57) KEB command is invalid
3 : Ramp to Stop with KEB Deceleration
When a momentary power loss occurs, the drive decelearates using regenerative power from
the motor even if the power recovers within P2-07
(KEB detection) duration. If KEB is assigned
to a multi-function input terminal, the drive accelerates back up when the power returns only if
the input terminal is opened.
■ KEB Function
When a power loss is detected, KEB ( Kinetic Energy Backup) starts decelerating the motor and
using regenerative power to control the motor. Therefore the drive can continue to run during
a momentary power loss. When the power returns, the drive accelerates back up to the