No. Name Description Range Def.ControlMode Addr.Hex Pg.V/fOLVPML8-03 Overheat Pre-AlarmOperation SelectionSets the drive operation when an overheat alarm oH isdetected.0: Ramp to Stop using the active decel time.1: Coast to Stop.2: Fast-stop using the time set in C1-09.3: Alarm Only. Drive continues running, but displays analarm.4: Reduced Speed Operation. Drive continues to run withreduced frequency reference as specified in L8-19.Settings 0 through 2 trigger a fault relay if the heatsinkbecomes too hot.0 to 4 3 A A A 4AF 224L8-05 Input Phase Loss ProtectionSelectionSelects the detection of input current phase loss, powersupply voltage imbalance, or main circuit electrolyticcapacitor deterioration.0: Disabled1: EnabledNote: This parameter is disabled in 200 V single-phasedrives.0, 1 0<19> A A A 4B1 225L8-07 Output Phase LossProtection SelectionSelects the output phase loss detection.0: Disabled1: Enabled (triggered by a single phase loss)2: Enabled (triggered when two phases are lost)Output phase loss is detected when operating with less than5% of the drive rated current. Detection can mistakenlyoccur if the motor is small relative to the drive capacity rating(this parameter should be disabled in such cases).0 to 2 0 A A A 4B3 226L8-09 Output Ground FaultDetection SelectionSelects the output ground fault detection.0: Disabled1: Enabled 0, 1 <3> A A A 4B5 226L8-10 Heatsink Cooling FanOperation SelectionControls the heatsink cooling fan operation.0: Run with timer (Fan operates only during run and forL8-11 seconds after stop.)1: Run always (Cooling fan operates whenever the drive ispowered up.)0, 1 0 A A A 4B6 226L8-11 Heatsink Cooling FanOperation Delay Time This parameter sets the delay time for the cooling fan to shutoff after the run command is removed when L8-10 = 0. 0 to 300 60 s A A A 4B7 226L8-12 Ambient TemperatureSetting Used to input the ambient temperature. This value adjuststhe drives oL2 detection level. -10 to 50 40 °C A A A 4B8 226L8-15 oL2 CharacteristicsSelection at Low SpeedsSets the oL2 characteristics at output frequencies below 6Hz.0: No oL2 level reduction below 6 Hz.1: oL2 level is reduced linearly below 6 Hz. It is halved at 0Hz.0, 1 1 A A A 4BB 226L8-18 Soft Current Limit Selection Selects the software current limit function. Typically noadjustment is required.0: Disabled1: Enabled0, 1 <15> A A − 4BE 227L8-19 Frequency Reduction Rateduring oH Pre-Alarm Specifies the frequency reference reduction gain at overheatpre-alarm when L8-03 = 4. 0.1 to 1.0 0.8 A A A 4BF 225L8-29 Current UnbalanceDetection (LF2)Selects the detection of unbalanced output currents causedby faulty devices in the output circuit.0: Disabled1: Enabled0, 1 1 − − A 4DF 227L8-35 Installation MethodSelectionSelects the installation type:1: Side-by-Side Mounting2: NEMA Type 1 Drive3: Finless Drive or External Heatsink Installation0 to 3<3><13><19>Α Α A 4EC 227L8-38 Carrier FrequencyReductionProvides protection to the IGBTs by reducing the carrierfrequency at low speeds.0: Disabled1: Enabled below 6 Hz2: Enabled for the whole speed range0 to 2 <3> A A A 4EF 227L8-40 Carrier FrequencyReduction TimeSets the time for that the drive continues running withreduced carrier frequency after the carrier reductioncondition has gone (see also L8-38).A setting of 0.00 s disables the carrier frequency reductiontime.0.00 to2.00 0.50 A A A 4F1 228B.2 Parameter TableYASKAWA ELECTRIC SIEP C710606 16C YASKAWA AC Drive – V1000 Technical Manual 363B Parameter List
