Danfoss VLT AutomationDrive FC 301 Instruction Manual

Also see for VLT AutomationDrive FC 301: Programming guide Installation guide Operating guide Installation guide Design guide

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Danfoss VLT AutomationDrive FC 301 Instruction Manual Manual pdf 31 page image

Test motor operation1. Start the motor at low speed (100 to 200 rpm). Ifthe motor does not turn, check installation,general programming and motor data.2. Check if start function in 1-70 PM Start Mode fitsthe application requirements.Rotor detectionThis function is the recommended selection forapplications where the motor starts from standstill, e.g.,pumps or conveyors. On some motors, an acoustic soundis heard when the adjustable frequency drive performs therotor detection. This does not harm the motor.ParkingThis function is the recommended selection forapplications where the motor is rotating at slow speed,e.g., windmilling in fan applications. 2-06 Parking Currentand 2-07 Parking Time can be adjusted. Increase the factorysetting of these parameters for applications with highinertia.Application-specific adjustment when running VVC+VVC+ is the most robust control mode. In most situations,it provides optimum performance without furtheradjustments. Run a complete AMA for best performance.Start the motor at nominal speed. If the application doesnot run well, check the VVC+ PM settings. Recommen-dations for different applications can be seen in Table 5.7.Application SettingsLow inertia applicationsILoad/IMotor <5Increase 1-17 Voltage Filter TimeConst. by factor 5 to 10.Reduce 1-14 Damping Gain.Reduce 1-66 Min. Current at LowSpeed (<100%).Low inertia applications50>ILoad/IMotor >5Keep default values.High inertia applicationsILoad/IMotor >50Increase 1-14 Damping Gain,1-15 Low Speed Filter Time Const. and1-16 High Speed Filter Time Const.High load at low speed<30% (rated speed)Increase 1-17 Voltage Filter TimeConst.Increase 1-66 Min. Current at LowSpeed to adjust starting torque.100% current provides nominaltorque as starting torque. Thisparameter is independent from30-20 High Starting Torque Time [s]and 30-21 High Starting TorqueCurrent [%]). Working at current levelhigher than 100% for a prolongedtime can overheat the motor.Table 5.7 Recommendations for Different ApplicationsIf the motor starts oscillating at a certain speed, increase1-14 Damping Gain. Increase the value in small steps.Depending on the motor, a good value for this parametercan be 10% or 100% higher than the default value.Application-specific adjustment when running FluxFlux mode is the preferred control mode for optimumshaft performance in dynamic applications. Perform anAMA since this control mode requires precise motor data.Depending on the application, further adjustments may berequired.See chapter 5.4.3 Asynchronous Motor Set-up for application-specific recommendations.5.4.5 SynRM Motor Set-up with VVC+This section describes how to set up SynRM motor withVVC+.Initial programming stepsTo activate SynRM motor operation, select [5] Sync.Reluctance in 1-10 Motor Construction (FC-302 only).Programming motor dataAfter performing the initial programming steps, the SynRMmotor-related parameters in parameter groups 1-2* MotorData, 1-3* Adv. Motor Data and 1-4* Adv. Motor Data II areactive. Use the motor nameplate data and the motor datasheet to program the following parameters in the listedorder:1. 1-23 Motor Frequency2. 1-24 Motor Current3. 1-25 Motor Nominal Speed4. 1-26 Motor Cont. Rated TorqueRun complete AMA using 1-29 Automatic Motor Adaptation(AMA) [1] Enable Complete AMA or enter the followingparameters manually:1. 1-30 Stator Resistance (Rs)2. 1-37 d-axis Inductance (Ld)3. 1-44 d-axis Inductance Sat. (LdSat)4. 1-45 q-axis Inductance Sat. (LqSat)5. 1-48 Inductance Sat. PointCommissioning Instruction ManualMG33AP22 Danfoss A/S © Rev. 09/2014 All rights reserved. 295 5