Danfoss VLT AQUA Drive FC 202 Programming Manual

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

Contents

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.Table 3.4 Recommendations for Various ApplicationsIf the motor starts oscillating at a certain speed, increaseparameter 1-14 Damping Gain. Increase the value in smallsteps. Depending on the motor, this parameter can be setto 10–100% higher than the default value.3.3.5 SynRM Motor Set-upThis section describes how to set up a synchronousreluctance motor.Initial programming stepsTo activate SynRM motor operation, select option [5]SynRM in parameter 1-10 Motor Construction.Programming motor dataAfter selecting option [5] SynRM, the SynRM motor-relatedparameters in parameter groups 1-2* Motor Data, 1-3* Adv.Motor Data, and 1-4* Adv. Motor Data II are active.The necessary data can be found on the motor nameplateand on the motor datasheet.Program the following parameters in the order listed:1. Parameter 1-24 Motor Current.2. Parameter 1-25 Motor Nominal Speed.3. Parameter 1-26 Motor Cont. Rated Torque.4. Parameter 1-39 Motor Poles.Run a complete AMA using parameter 1-29 AutomaticMotor Adaptation (AMA) [1] Enable Complete AMA.If a complete AMA is not performed, configure thefollowing parameters manually:1. Parameter 1-30 Stator Resistance (Rs)Enter the line-to-common stator windingresistance (Rs). If only line-line data is available,divide the line-line value by 2 to get the line-common value.2. Parameter 1-37 d-axis Inductance (Ld)Enter the line-to-common direct axis inductanceof the motor.If only line-line data is available, divide the line-line value by 2 to get the line-common value.3. Parameter 1-38 q-axis Inductance (Lq).Enter the line-to-common quadrature axisinductance of the motor.If only line-line data is available, divide the line-line value by 2 to get the line-common value.4. Parameter 1-44 d-axis Inductance Sat. (LdSat).Enter the line-to-common saturated value of thed-axis inductance. This is the value at a currenthigher than the nominal current where theinductance is fully saturated.5. Parameter 1-48 Inductance Sat. Point.Enter the percentage of nominal current wherethe d-axis inductance is half-saturated, that is hasthe average value of the non-saturated andsaturated values.NOTICEMotors may be missing some inductance values on thenameplates or in the datasheets. Perform AMA to get thevalid values.Test motor operation1. Start the motor at low speed (100–200 RPM). Ifthe motor does not turn, check the installation,general programming, and motor data.2. Check if the start function in parameter 1-70 StartMode fits the application requirements.Rotor detectionThis function is the recommended selection forapplications where the motor starts from standstill, forexample pumps or conveyors. On some motors, a sound isheard when the frequency converter performs the rotordetection. This does not harm the motor.ParkingThis function is the recommended selection forapplications where the motor is rotating at slow speed, forexample windmilling in fan applications.Parameter 2-06 Parking Current and parameter 2-07 ParkingTime can be adjusted. Increase the factory setting of theseparameters for applications with high inertia.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.Parameter Description Programming GuideMG20OB02 Danfoss A/S © 05/2018 All rights reserved. 453 3