B.3 Parameter Table494 YASKAWA ELECTRIC SIEP C710616 27G YASKAWA AC Drive A1000 Technical Manual L: Protection FunctionL parameters provide protection to the drive and motor, such as: control during momentary power loss, stall prevention,frequency detection, fault restarts, overtorque and undertorque detection, torque limits, and other types of hardwareprotection. L1: Motor ProtectionNo. (Addr.) Name Description Setting PageL1-01(480H)Motor Overload ProtectionSelection0: 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 multiple motors are used, even ifoverload is enabled in L1-01. Set L1-01 to 0 and install separate thermal relay to each motor.Default: <10>Min: 0Max: 6267L1-02(481H) Motor Overload Protection TimeSets the motor thermal overload protection (oL1) time.Default: 1.0 minMin: 0.1 minMax: 5.0 min269L1-03(482H)Motor Overheat Alarm OperationSelection (PTC input)Sets operation when the motor temperature analog input (H3-02, H3-06, or H3-10 = E) exceedsthe oH3 alarm level.0: Ramp to stop1: Coast to stop2: Fast Stop (decelerate to stop using the deceleration time in C1-09)3: Alarm only (“oH3” will flash)Default: 3Min: 0Max: 3271L1-04(483H)Motor Overheat Fault OperationSelection (PTC input)Sets stopping method when the motor temperature analog input (H3-02, H3-06, or H3-10 = E)exceeds the oH4 fault level.0: Ramp to stop1: Coast to stop2: Fast Stop (decelerate to stop using the deceleration time in C1-09)Default: 1Min: 0Max: 2271L1-05(484H)Motor Temperature Input FilterTime (PTC input) Adjusts the filter for the motor temperature analog input (H3-02, H3-06, or H3-10 = E).Default: 0.20 sMin: 0.00 sMax: 10.00 s271L1-08(1103H) OL1 Current Lvl Sets the reference current for motor thermal overload detection for motor 1 in amperes.Note: This parameter is not available in models CIMR-A4A0930 and 4A1200.Default: 0.0 AMin: 0.0 A or 10% ofdrive rated currentMax: 150% of driverated current <19>271L1-09(1104H) OL1 Current Lvl (for 2nd motor)Sets the reference current for motor thermal overload detection for motor 2 in amperes.Note: This parameter is not available in models CIMR-A4A0930 and 4A1200.Default: 0.0 AMin: 0.0 A or 10% ofdrive rated currentMax: 150% of driverated current <19>272L1-13(46DH)Continuous ElectrothermalOperation Selection 0: Disabled1: EnabledDefault: 1Min: 0Max: 1272L1-15(440H)Motor 1 Thermistor Selection(NTC) 0: Disabled1: EnabledNote: This parameter is available in models CIMR-A4A0930 and 4A1200.Default: 0Min: 0Max: 1273L1-16(441H) Motor 1 Overheat Temperature Sets the temperature for motor 1 that triggers an overheat fault (oH5).Note: This parameter is available in models CIMR-A4A0930 and 4A1200.Default: 120Min: 50Max: 200273L1-17(442H)Motor 2 Thermistor Selection(NTC) 0: Disabled1: EnabledNote: This parameter is available in models CIMR-A4A0930 and 4A1200.Default: 0Min: 0Max: 1273L1-18(443H) Motor 2 Overheat Temperature Sets the temperature for motor 2 that triggers an overheat fault (oH5).Note: This parameter is available in models CIMR-A4A0930 and 4A1200.Default: 120Min: 50Max: 200273L1-19(444H)Operation at ThermistorDisconnect (THo) (NTC)Determines what action the drive should take when a thermistor disconnect fault occurs (Tho).0: Ramp to stop1: Coast to stop2: Fast Stop (decelerate to stop using the deceleration time in C1-09)3: Alarm only ("THo" will flash)Note: This parameter is available in models CIMR-A4A0930 and 4A1200.Default: 3Min: 0Max: 3273All ModesAll ModesAll ModesAll ModesAll ModesAll ModesOLV/PM AOLV/PMCLVV/f w/PGCLV/PMV/f OLVAll ModesAll ModesAll ModesAll ModesAll ModesAll Modes
