No.(Addr.Hex) Name Description Values PageL2-05(489) Undervoltage DetectionLevel (Uv1)Sets the DC bus undervoltage trip level. Default: 190 Vdc<2> <3>Min.: 150 VdcMax.: 210 Vdc <3>246L2-06(48A) KEB Deceleration TimeSets the time required to decelerate from the speed when KEB was activatedto zero speed. Default: 0.00 sMin.: 0.00Max.: 6000.0 <4> 246L2-07(48B) KEB Acceleration TimeSets the time to accelerate to the frequency reference when momentary powerloss is over. If set to 0.0, the active acceleration time is used. Default: 0.00 sMin.: 0.00Max.: 6000.0 <4> 246L2-08(48C) Frequency Gain at KEBStartSets the percentage of output frequency reduction at the beginning ofdeceleration when the KEB Ride-Thru function is started.Reduction = (slip frequency before KEB) × L2-08 × 2Default: 100%Min.: 0Max.: 300 246L2-10(48E) KEB Detection Time(Minimum KEB Time)Sets the time to perform KEB Ride-Thru. Default: 50 msMin.: 0Max.: 2000 246L2-11(461)DC Bus Voltage Setpointduring KEBSets the desired value of the DC bus voltage during KEB Ride-Thru. Default: <2>[E1-01] × 1.22Min.: 150 VdcMax.: 400 Vdc <5>246L2-29(475) KEB Method Selection0: Single Drive KEB Ride-Thru 11: Single Drive KEB Ride-Thru 22: System KEB Ride-Thru 13: System KEB Ride-Thru 2Default: 0Range: 0 to 3 247<1> Default setting is dependent on parameter o2-04, Drive Model Selection.<2> Default setting is dependent on parameter E1-01, Input voltage Setting.<3> Values shown are specific to 200 V class drives. Double the value for 400 V class drives. Multiply the value by 2.875 for 600 V class drives.<4> Setting range value is dependent on parameter C1-10, Accel/Decel Time Setting Units. When C1-10 = 0 (units of 0.01 seconds), the setting rangebecomes 0.00 to 600.00 seconds.<5> Values shown are specific to 200 V class drives. Double the value for 400 V class drives. Multiply the value by 2.875 for 600 V class drives, butset the value below 1040 Vdc (overvoltage protection level).u L3: Stall PreventionNo.(Addr.Hex) Name Description Values PageL3-01(48F) Stall Prevention Selectionduring Acceleration0: Disabled.1: General purpose. Acceleration is paused as long as the current is above theL3-02 setting.2: Intelligent. Accelerate in the shortest possible time without exceeding theL3-02 level.Default: 1Range: 0 to 2 247L3-02(490) Stall Prevention Levelduring AccelerationUsed when L3-01 = 1 or 2. 100% is equal to the drive rated current. Default: <1>Min.: 0%Max.: 150% <1>248L3-03(491) Stall Prevention Limitduring AccelerationSets Stall Prevention lower limit during acceleration when operating in theconstant power range. Set as a percentage of drive rated current. Default: 50%Min.: 0Max.: 100 248L3-04(492) Stall Prevention Selectionduring Deceleration0: Disabled. Deceleration at the active deceleration rate. An ov fault mayoccur.1: General purpose. Deceleration is paused when the DC bus voltage exceedsthe Stall Prevention level.2: Intelligent. Decelerate as fast as possible while avoiding ov faults.3: Stall Prevention with braking resistor. Stall Prevention during decelerationis enabled in coordination with dynamic braking.4: Overexcitation Deceleration. Decelerates while increasing the motor flux.5: Overexcitation Deceleration 2. Adjust the deceleration rate according to theDC bus voltage.Default: 1Range: 0 to 5 249B.9 L: Protection Function464 YASKAWA SIEP YAIP1U 01C AC Drive - P1000 Technical Manual