11.10 L: PROTECTION
366 SIEPCYEUOQ2V01A Q2V Technical Manual
◆ L2: POWER LOSS RIDE THROUGH
No.
(Hex.)
Name Description
Default
(Range)
Ref.
L2-01
(0485)
RideThru@PwrLoss
Sets the drive operation after a momentary power loss.
0 : Disabled
1 : Enabled
0
(0, 1)
642
L2-50
(0453)
Expert
RidThruMode@PwrLoss
Sets the drive operation after a momentary power loss..
0 : Timer Controlled
1 : While CPU Active
2 : KEB Mode
3 : KEB Stop Mode
4 : KEB Decel to Stop
0
(0 - 4)
646
L2-02
(0486)
RideThrough
Time@Power Loss
Sets the maximum time that the drive will wait until trying to restart after power loss.
Determined by o2-04,
C6-01
(0.0 - 25.5 s)
642
L2-03
(0487)
Min Baseblck Time
Sets the minimum time to continue the drive output block (baseblock) after a baseblock.
Determined by o2-04,
C6-01
(0.1 - 5.0 s)
642
L2-04
(0488)
Powloss Ramp
Time@recovery
Sets the time for the drive output voltage to go back to correct voltage after completing
speed searches.
Determined by o2-04,
C6-01
(0.0 - 5.0 s)
643
L2-05
(0489)
UV Detection Lvl (Uv1)
Sets the voltage at which a Uv1 [DC Bus Undervoltage] fault is triggered or at which
the KEB function is activated. Usually it is not necessary to change this setting.
NOTICE: Damage to Equipment. When you set this parameter
to a value lower than the default, you must install an AC
reactor on the input side of the power supply. If you do not
install an AC reactor, it will cause damage to the drive circuitry.
Determined by o2-04
and E1-01
(200 V Class: 150 - 210
V, 400 V Class: 300 -
420 V)
643
L2-06
(048A)
Expert
KEB Decel Time
Sets the deceleration time during KEB operation used to decrease the maximum output
frequency to 0.
Note:
When L2-29 = 2, 3, or 4 [KEB Method = Single KEB2 Ride-Thru, System KEB1
Ride-Thru, or System KEB2 Ride-Thru] and you do KEB Auto-Tuning, the drive
will automatically set this value.
0.0 s
(0.0 - 6000.0 s)
643
L2-07
(048B)
Expert
KEB Accel Time
Sets the acceleration time to return the frequency to the frequency reference before a
power loss after canceling KEB operation.
0.0 s
(0.0 - 6000.0 s)
644
L2-08
(048C)
Expert
Frq.Gain@KEB Start
Sets the quantity of output frequency reduction used when KEB operation starts as a
percentage of the motor rated slip before starting KEB operation.
100%
(0 - 300%)
644
L2-09
(048D)
Expert
KEB Min.Frq Level
Sets the quantity of output frequency reduction used as a percentage of E2-02 [Mot
Rated Slip] when KEB operation starts.
20%
(0 - 100%)
644
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)
644
L2-11
(0461)
Expert
KEB DC Volt Setpoint
Sets the target value that controls the DC bus voltage to a constant level in Single Drive
KEB Ride-Thru 2. Sets the DC bus voltage level that completes the KEB operation for
all other KEB methods.
Determined by E1-01
(Determined by E1-01)
645
L2-29
(0475)
Expert
KEB Method
Sets the KEB function operation mode.
1 : Single KEB1 Ride-Thru
2 : Single KEB2 Ride-Thru
3 : System KEB1 Ride-Thru
4 : System KEB2 Ride-Thru
1
(1 - 4)
645
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