<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.Note: Setting 2 is not available when using OLV/PM.Default: 1Range: 0 to 2 111L3-02(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>112L3-03(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 112L3-04(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.Note: Setting 3 is not available in models CIMR-Ao4A0930 and 4A1200.Default: 1Range: 0 to 5 <2> 113L3-05(493) Stall Prevention Selectionduring Run0: Disabled. Drive runs at a set frequency. A heavy load may cause speed loss.1: Decel time 1. Uses the deceleration time set to C1-02 while Stall Preventionis performed.2: Decel time 2. Uses the deceleration time set to C1-04 while Stall Preventionis performed.Default: 1Range: 0 to 2 114L3-06(494) Stall Prevention Levelduring RunEnabled when L3-05 is set to 1 or 2. 100% is equal to the drive rated current. Default: <1>Min.: 30%Max.: 150% <1>114L3-11(4C7) Overvoltage SuppressionFunction SelectionEnables or disables the ov suppression function, which allows the drive tochange the output frequency as the load changes to prevent an ov fault.0: Disabled1: EnabledDefault: 0Range: 0, 1 –L3-17(462)Target DC Bus Voltage forOvervoltage Suppressionand Stall PreventionSets the desired value for the DC bus voltage during overvoltage suppressionand Stall Prevention during deceleration. Default: 370 Vdc<3> <8>Min.: 150Max.: 400 <8>–L3-20(465) DC Bus Voltage AdjustmentGainSets the proportional gain for KEB Ride-Thru, Stall Prevention, andovervoltage suppression. Default: <4>Min.: 0.00Max.: 5.00–L3-21(466) Accel/Decel RateCalculation GainSets the proportional gain used to calculate the deceleration rate during KEBRide-Thru, ov suppression function, and Stall Prevention during deceleration(L3-04 = 2).Default: 1.00Min.: 0.10Max.: 10.00 –L3-22(4F9)Deceleration Time at StallPrevention duringAccelerationSets the deceleration time used for Stall Prevention during acceleration inOLV/PM. Default: 0.0 sMin.: 0.0Max.: 6000 –L3-23(4FD)Automatic ReductionSelection for StallPrevention during Run0: Sets the Stall Prevention level set in L3-04 that is used throughout the entirefrequency range.1: Automatic Stall Prevention level reduction in the constant output range. Thelower limit value is 40% of L3-06.Default: 0Range: 0, 1 –L3-24(46E) Motor Acceleration Time forInertia CalculationsSets the time needed to accelerate the uncoupled motor at rated torque fromstop to the maximum frequency. Default: <5> <6><7>Min: 0.001 sMax: 10.000 s–B.8 L: Protection Function216 YASKAWA ELECTRIC TOEP C710616 41B YASKAWA AC Drive - A1000 Quick Start Guide
