Parameter List
11
11.9 L: PROTECTION
SIEPYEUOQ2A01A AC Drive Q2A Technical Manual 449
No.
(Hex.)
Name Description
Default
(Range)
Ref.
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
and C6-01
(0.0 - 25.5 s)
748
L2-03
(0487)
Min Baseblck Time
Sets the minimum baseblock time when the drive restores power after a momentary
power loss.
Determined by o2-04
and C6-01
(0.1 - 5.0 s)
749
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
and C6-01
(0.0 - 5.0 s)
749
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. Install an AC reactor option
on the input side of the power supply when setting this
parameter lower than the default value. Failure to obey will
cause damage to drive circuitry.
Determined by E1-01
(Determined by E1-01)
749
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 , 4 [KEB Method = Single KEB2 Ride-Thru, System KEB1
Ride-Thru, System KEB2 Ride-Thru] and you do KEB Auto-Tuning, the drive will
automatically set this value.
0.0 s
(0.0 to 6000.0 s)
749
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 to 6000.0 s)
750
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%)
750
L2-09
(048D)
Expert
KEB Min.Frq Level
Sets the quantity of output frequency reduction used when KEB operation starts as a
percentage of the motor rated slip.
20%
(0 - 100%)
750
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)
750
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)
751
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)
751
L2-30
(045E)
Expert
KEB ZeroSpeed
Operation
Sets the operation when the output frequency decreases below the zero level (DC
braking injection starting frequency) during KEB deceleration when L2-01 = 1
[RideThru@PwrLoss = Enabled and L2-50 = 2 to 4 [RidThruMode@PwrLoss= KEB
Mode, KEB Stop Mode, or KEB Decel to Stop].
1 : Baseblock
2 : DC/SC Braking
1
(1, 2)
752
L2-31
(045D)
Expert
KEB StartV Offset Level
Sets the KEB start voltage offset.
Determined by A1-02
(400 V Class: 0 - 200 V)
752
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