Danfoss VLT Aqua Drive FC 202 Operating Manual

Also see for VLT AQUA Drive FC 202: Service guide Installation guide Installation guide Operating guide Installation guide

Contents

1. Parameter 1-23 Motor Frequency.2. Parameter 1-24 Motor Current.3. Parameter 1-25 Motor Nominal Speed.4. Parameter 1-26 Motor Cont. Rated Torque.Run a complete AMA using parameter 1-29 AutomaticMotor Adaptation (AMA) [1] Enable Complete AMA or enterthe following parameters manually:1. Parameter 1-30 Stator Resistance (Rs).2. Parameter 1-37 d-axis Inductance (Ld).3. Parameter 1-44 d-axis Inductance Sat. (LdSat).4. Parameter 1-45 q-axis Inductance Sat. (LqSat).5. Parameter 1-48 Inductance Sat. Point.Application-specific adjustmentsStart the motor at nominal speed. If the application doesnot run well, check the VVC+ SynRM settings. Table 5.8provides application-specific recommendations:Application SettingsLow-inertia applicationsILoad/IMotor<5Increase parameter 1-17 Voltage filtertime const. by factor 5–10.Reduce parameter 1-14 DampingGain.Reduce parameter 1-66 Min. Currentat Low Speed (<100%).Low-inertia applications50>ILoad/IMotor>5Keep the default values.High-inertia applicationsILoad/IMotor>50Increase parameter 1-14 DampingGain, parameter 1-15 Low Speed FilterTime Const., and parameter 1-16 HighSpeed Filter Time Const.High-load at low speed<30% (rated speed)Increase parameter 1-17 Voltage filtertime const.Increase parameter 1-66 Min. Currentat Low Speed to adjust the startingtorque. 100% current providesnominal torque as starting torque.Working at a current level higherthan 100% for a prolonged time cancause the motor to overheat.Application SettingsDynamic applications Increase parameter 14-41 AEOMinimum Magnetisation for highlydynamic applications. Adjustingparameter 14-41 AEO MinimumMagnetisation ensures a goodbalance between energy efficiencyand dynamics. Adjustparameter 14-42 Minimum AEOFrequency to specify the minimumfrequency at which the frequencyconverter should use minimummagnetization.Motor sizes less than 18kW (24 hp)Avoid short ramp-down times.Table 5.8 Recommendations for Various ApplicationsIf the motor starts oscillating at a certain speed, increaseparameter 1-14 Damping Gain. Increase the damping gainvalue in small steps. Depending on the motor, thisparameter can be set to 10–100% higher than the defaultvalue.5.4.6 Automatic Energy Optimization (AEO)NOTICEAEO is not relevant for permanent magnet motors.AEO is a procedure which minimizes voltage to the motor,as a result of that reducing energy consumption, heat, andnoise.To activate AEO, set parameter 1-03 Torque Characteristics to[2] Auto Energy Optim. CT or [3] Auto Energy Optim. VT.5.4.7 Automatic Motor Adaptation (AMA)AMA is a procedure which optimizes compatibilitybetween the frequency converter and the motor.• The frequency converter builds a mathematicalmodel of the motor for regulating output motorcurrent. The procedure also tests the input phasebalance of electrical power. It compares themotor characteristics with the entered nameplatedata.• The motor shaft does not turn and no harm isdone to the motor while running the AMA.• Some motors may be unable to run the completeversion of the test. In that case, select [2] Enablereduced AMA.• If an output filter is connected to the motor,select [2] Enable reduced AMA.Commissioning VLT® AQUA Drive FC 20230 Danfoss A/S © 10/2016 All rights reserved. MG20MD0255