10.11 L: Protection Function466 YASKAWA ELECTRIC SIEP C710617 01B YASKAWA AC Drive GA700 Technical Manual10.11 L: Protection Functionâ—† L1: Motor ProtectionNo.(Hex.) Name Description Default Setting(Range) Ref.L1-01(0480)Motor Overload(oL1) Protection Enables or disables the motor overload protection using electronicthermal protectors.0 : Disabled1 : Variable Torque2 : Constant Torque 10:1 Speed Range3 : Constant Torque 100:1 SpeedRange4 : PM Variable Torque5 : PM Constant Torque6 : Variable Torque (50Hz)Note:Set L1-01 = 1 to 6 [Enabled] when only one motor is connectedto a drive. External thermal relays are not necessary in suchcases.Determined by A1-02(0 - 6)219L1-02(0481)Motor Overload(oL1) Protection Sets the operation time for the electronic thermal protector of thedrive to protect the motor. Normally there is no need to change thissetting.1.0 min(0.1 - 5.0 min)222L1-03(0482)Motor OH AlarmOperation Select Selects the drive operation when the PTC input signal input into thedrive reaches the detection level of oH3 [Motor Overheat Alarm].0 : Ramp to stop1 : Coast to stop2 : Fast Stop (use C1-09)3 : Alarm only3(0 - 3)222L1-04(0483)Motor OH FaultOperation Select Selects the drive operation when the PTC input signal input into thedrive reaches the detection level of oH4 [Motor Overheat Failure].0 : Ramp to stop1 : Coast to stop2 : Fast Stop1(0 - 2)223L1-05(0484)Motor Temp InputFilter Time Sets the primary delay time constant for the PTC input signal inputto the drive. This parameter is used to prevent accidental detectionsof motor overheat fault.0.20 s(0.00 - 10.00 s)832L1-08(1103)oL1 Current LevelSets the reference current for motor thermal overload detection formotor 1 in amperes.Note:Cannot be set to a value smaller than 10% of drive rated currentwhen the current level is set to a value greater than 0.0 A.0.0 A(0.0 A or 10% to150% of the driverated current)832L1-09(1104)oL1 Current Levelfor Motor 2 Sets the current value used as the reference for detecting the motoroverload state regarding the motor 2 electronic thermal protector.Note:Values greater than 0.0 A and less than 10% of the drive ratedcurrent cannot be set.0.0 A(0.0 A or 10to150% of thedrive rated current)833L1-13(046D)ContElectrothermal OpeSelect Selects whether to retain the current electronic thermal protectorvalue when the power supply is interrupted.0 : Disabled1 : Enabled1(0, 1)833V/f CL-V/f OLV CLV AOLV OLV/PMOLV/PM AOLV/PM CLV/PM EZOLVV/f CL-V/f OLV CLV AOLV OLV/PMOLV/PM AOLV/PM CLV/PM EZOLVV/f CL-V/f OLV CLV AOLV OLV/PMOLV/PM AOLV/PM CLV/PM EZOLVV/f CL-V/f OLV CLV AOLV OLV/PMOLV/PM AOLV/PM CLV/PM EZOLVV/f CL-V/f OLV CLV AOLV OLV/PMOLV/PM AOLV/PM CLV/PM EZOLVV/f CL-V/f OLV CLV AOLV OLV/PMOLV/PM AOLV/PM CLV/PM EZOLVV/f CL-V/f OLV CLV AOLV OLV/PMOLV/PM AOLV/PM CLV/PM EZOLVV/f CL-V/f OLV CLV AOLV OLV/PMOLV/PM AOLV/PM CLV/PM EZOLV
