No.(Addr.Hex) Name Description Values PageL6-04(4A4)Torque DetectionSelection 20: Disabled1: oL4 detection only active during speed agree, operation continues afterdetection2: oL4 detection always active during run, operation continues after detection3: oL4 detection only active during speed agree, output shuts down on an oL4fault4: oL4 detection always active during run, output shuts down on an oL4 fault5: UL4 detection only active during speed agree, operation continues afterdetection6: UL4 detection always active during run, operation continues after detection7: UL4 detection only active during speed agree, output shuts down on an oL4fault8: UL4 detection always active during run, output shuts down on an oL4 faultDefault: 0Range: 0 to 8 256L6-05(4A5)Torque DetectionLevel 2 Sets the overtorque and undertorque detection level. Default: 150%Min.: 0Max.: 300 257L6-06(4A6)Torque DetectionTime 2 Sets the time an overtorque or undertorque condition must exist to triggertorque detection 2. Default: 0.1 sMin.: 0.0Max.: 10.0 257L6-13(62E) Motor Underload ProtectionSelectionSets the motor underload protection (UL6) based on motor load.0: Base frequency enable1: Max frequency enableDefault: 0Range: 0, 1 256L6-14(62F)Motor Underload ProtectionLevel at MinimumFrequencySets the UL6 detection level at minimum frequency by percentage of driverated current. Default: 15%Min.: 0Max.: 300 256u L8: Drive ProtectionNo.(Addr.Hex) Name Description Values PageL8-01(4AD)Internal Dynamic BrakingResistor ProtectionSelection (ERF type)0: Resistor overheat protection disabled1: Resistor overheat protection enabled Default: 0Range: 0, 1 257L8-02(4AE) Overheat Alarm LevelAn overheat alarm occurs when heatsink temperature exceeds the L8-02 level. Default: <1>Min.: 50 °CMax.: 150 °C258L8-03(4AF) Overheat Pre-AlarmOperation Selection0: Ramp to stop. A fault is triggered.1: Coast to stop. A fault is triggered.2: Fast Stop. Decelerate to stop using the deceleration time in C1-09. A faultis triggered.3: Continue operation. An alarm is triggered.4: Continue operation at reduced speed as set in L8-19.Default: 3Range: 0 to 4 258L8-05(4B1)Input Phase Loss ProtectionSelectionSelects the detection of input current phase loss, power supply voltageimbalance, or main circuit electrolytic capacitor deterioration.0: Disabled1: EnabledDefault: 1Range: 0, 1 259L8-07(4B3) Output Phase LossProtection Selection0: Disabled1: Enabled (triggered by a single phase loss)2: Enabled (triggered when two phases are lost)Default: 1Range: 0 to 2 259L8-09(4B5) Output Ground FaultDetection Selection 0: Disabled1: Enabled Default: 1Range: 0, 1 260L8-10(4B6) Heatsink Cooling FanOperation Selection 0: During run only. Fan operates only during run for L8-11 seconds after stop.1: Fan always on. Cooling fan operates whenever the drive is powered up. Default: 0Range: 0, 1 260L8-11(4B7) Heatsink Cooling Fan OffDelay TimeSets a delay time to shut off the cooling fan after the Run command is removedwhen L8-10 = 0. Default: 60 sMin.: 0Max.: 300 260L8-12(4B8) Ambient TemperatureSettingEnter the ambient temperature. This value adjusts the oL2 detection level. Default: 40 °CMin.: -10Max.: 50 260L8-15(4BB) oL2 CharacteristicsSelection at Low Speeds 0: No oL2 level reduction below 6 Hz.1: oL2 level is reduced linearly below 6 Hz. It is halved at 0 Hz. Default: 1Range: 0, 1 260L8-18(4BE) Software Current LimitSelection 0: Disabled1: Enabled Default: 0Range: 0, 1 261B.9 L: Protection FunctionYASKAWA SIEP YAIP1U 01C AC Drive - P1000 Technical Manual 467B Parameter List