No.(Addr.Hex) Name Description Values PageL3-04(492)Stall Prevention Selectionduring DecelerationStallP Decel Sel0: Disabled. Deceleration at the active deceleration rate. An ov fault mayoccur. 0: Disabled1: General purpose. 1: General PurposeDeceleration is paused when the DC bus voltage exceeds the Stall Preventionlevel.2: Intelligent. 2: IntelligentDecelerate as fast as possible while avoiding ov faults.4: Overexcitation 4: High Flux BrakeDeceleration. Decelerates while increasing the motor flux5: Overexcitation Deceleration 2. 5: High Flux Brake2Adjust the deceleration rate according to the DC bus voltage.Default: 1Range: 0 to 2; 4, 5 171L3-06(494)Stall Prevention Levelduring RunStallP Run LevelEnabled when L3-05 is set to 1 or 2. 100% is equal to the drive rated current. Default: <1>Min.: 30%Max.: 150% <1>172L3-11(4C7)Overvoltage SuppressionFunction SelectionOV Inhibit SelEnables or disables the ov suppression function, which allows the drive tochange the output frequency as the load changes to prevent an ov fault.0: Disabled 0: Disabled1: Enabled 1: EnabledDefault: 0Range: 0, 1 172L3-25(46F)Load Inertia RatioLoad Inertia RatSets the ratio between the motor and machine inertia. Default: 1.0Min.: 1.0Max.: 1000.0 173<1> Upper limit is dependent on parameter L8-38, Frequency Reduction Selection.u L4: Speed DetectionNo.(Addr.Hex) Name LCD Display Description Values PageL4-05(49D)Frequency ReferenceLoss Detection SelectionRef Loss Sel0: Stop1:Run@L4-06PrevRef0: Stop. Drive stops when the frequency reference is lost.1: Run. Drive runs at a reduced speed when the frequencyreference is lost. Default: 1Range: 0, 1 173L4-06(4C2) Frequency Reference atReference Loss Fref at Floss Sets the percentage of the frequency reference that the driveshould run with when the frequency reference is lost. Default: 80.0%Min.: 0.0Max.: 100.0 173u L5: Fault RestartNo.(Addr.Hex) Name LCD Display Description Values PageL5-01(49E) Number of Auto RestartAttempts Num of Restarts Sets the number of times the drive may attempt to restart afterthe following faults occur: GF, LF, oC, ov, PF, oL1, oL2, oL3,STo, Uv1.Default: 0Min.: 0Max.: 10 174L5-02(49F)Auto Restart FaultOutput OperationSelectionRestart Sel0: Flt Outp Disabld1: Flt Outp Enabled0: Fault output not active.1: Fault output active during restart attempt. Default: 0Range: 0, 1 174L5-03(4A0) Time to ContinueMaking Fault Restarts Max Restart Time Enabled only when L5-05 is set to 0. Causes a fault if a faultrestart cannot occur after the set time passes.Default: 180.0 sMin.: 0.0Max.: 600.0 174L5-04(46C) Fault Reset IntervalTime Flt Reset Wait T Sets the amount of time to wait between performing faultrestarts. Default: 10.0 sMin.: 0.5Max.: 600.0 176L5-05(467) Fault Reset OperationSelectionFault Reset Sel0: Continuous1: Use L5-04 Time0: Continuously attempt to restart while incrementing restartcounter only at a successful restart (same as F7 and G7).1: Attempt to restart with the interval time set in L5-04 andincrement the restart counter with each attempt (same as V7).Default: 1Range: 0, 1 176B.9 L: Protection FunctionYASKAWA ELECTRIC SIEP YAIZ1B 01E YASKAWA AC Drive – Z1000 Bypass Technical Manual 329B Parameter List
