B.8 L: Protection FunctionL parameters provide protection to the drive and motor, including control during momentary power loss, stall prevention,frequency detection, fault restarts, overtorque and undertorque detection, and other types of hardware protection.u L1: Motor ProtectionNo.(Addr.Hex) Name LCD Display Description Values PageL1-01(0480) Motor OverloadProtection SelectionMtr OL Charact0: OL1 Disabled1: VT Motor2: CT Motor3: Vector Motor4: PM Motor5: Constant Torque6: 50Hz VT Motor0: Disabled1: General purpose motor (standard fan cooled)2: Drive dedicated motor with a speed range of 1:103: Vector motor with a speed range of 1:1004: PM motor with variable torque5: PM motor with constant torque control6: General purpose motor (50 Hz)The drive may not be able to provide protection when usingmultiple motors, even if overload is enabled in L1-01. SetL1-01 to 0 and install separate thermal relays to each motor.Default: <1>Range: 0 to 6 –L1-02(0481) Motor OverloadProtection Time MOL Time Const Sets the motor thermal overload protection (oL1) time. Default: 1.0 minMin.: 0.1Max.: 5.0 –L1-03(0482)Motor Overheat AlarmOperation Selection(PTC input)Mtr OH Alarm Sel0 : Ramp to Stop1: Coast to Stop2: Fast-Stop3: Alarm onlySets operation when the motor temperature analog input(H3-02, H3-10, or H3-06 = E) exceeds the oH3 alarm level.0: Ramp to stop1: Coast to stop2: Fast Stop (decelerate to stop using the deceleration time inC1-09)3: Alarm only (“oH3” will flash)Default: 3Range: 0 to 3 –L1-04(0483)Motor Overheat FaultOperation Selection(PTC input)Mtr OH Fault Sel0 : Ramp to Stop1: Coast to Stop2: Fast-StopSets stopping method when the motor temperature analog input(H3-02, H3-10, or H3-06 = E) exceeds the oH4 fault level.0: Ramp to stop1: Coast to stop2: Fast Stop (decelerate to stop using the deceleration time inC1-09)Default: 1Range: 0 to 2 –L1-05(0484)Motor TemperatureInput Filter Time (PTCinput) Mtr Temp Filter Adjusts the filter for the motor temperature analog input(H3-02, H3-10, or H3-06 = E). Default: 0.20 sMin.: 0.00Max.: 10.00 –L1-08(1103)<2> oL1 Current Level OL1 current lvl1Sets the reference current for motor thermal overload detectionfor motor 1 in amperes.Note: This parameter is not available in models4A0930 and 4A1200.Default: 0.0 AMin.: 10% ofdrive ratedcurrentMax.: 150% ofdrive ratedcurrent <3>–L1-09(1104)<2>oL1 Current Level forMotor 2 OL1 current lvl2Sets the reference current for motor thermal overload detectionfor motor 2 in amperes.Note: This parameter is not available in models4A0930 and 4A1200.Default: 0.0 AMin.: 10% ofdrive ratedcurrentMax.: 150% ofdrive ratedcurrent <3>–L1-13(046D)ContinuousElectrothermalOperation SelectionMtr OL Mem Sel0: Disabled1: Enabled0: Disabled1: Enabled Default: 1Range: 0, 1 –L1-15(0440) Motor 1 ThermistorSelection (NTC) M1 OH5 Fault Sel0: Disabled1: EnabledNote: This parameter is only available in models4A0930 and 4A1200.Default: 0Range: 0, 1 –L1-16(0441) Motor 1 OverheatTemperature M1 OH5 levelSets the temperature for motor 1 that triggers an overheat fault(oH5).Note: This parameter is only available in models4A0930 and 4A1200.Default: 120 °CMin.: 50Max.: 200 –B.8 L: Protection FunctionYASKAWA ELECTRIC TOEP C710616 41G YASKAWA AC Drive - A1000 Quick Start Guide 299B Parameter List
