Danfoss VLT AQUA Drive FC 202 Instruction Manual

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

Contents

5.4.6 Automatic Motor Adaptation (AMA)NOTICE!AMA is not relevant for PM motors.Automatic motor adaptation (AMA) is a procedure thatoptimizes compatibility between the adjustable frequencydrive and the motor.• The adjustable frequency drive builds amathematical model of the motor for regulatingoutput motor current. The procedure also teststhe input phase balance of electrical power. Itcompares the motor characteristics with the dataentered in parameters 1-20 to 1-25.• 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 Enable reduced AMA.• If warnings or alarms occur, see chapter 7.4 List ofWarnings and Alarms.• Run this procedure on a cold motor for bestresults.To run AMA1. Press [Main Menu] to access parameters.2. Scroll to parameter group 1-** Load and Motorand press [OK].3. Scroll to parameter group 1-2* Motor Data andpress [OK].4. Scroll to 1-29 Automatic Motor Adaptation (AMA)and press [OK].5. Select [1] Enable complete AMA and press [OK].6. Follow the on-screen instructions.7. The test runs automatically and indicate when itis complete.5.5 Checking Motor RotationWARNINGMOTOR STARTFailure to ensure that the motor, system, and anyattached equipment are ready for start can result inpersonal injury or equipment damage. Before start,• Ensure equipment is safe to operate under anycondition.• Ensure that the motor, system, and anyattached equipment are ready for start.NOTICE!Risk of damage to pumps/compressors caused by motorrunning in wrong direction. Before running theadjustable frequency drive, check the motor rotation.The motor runs briefly at 5 Hz or the minimum frequencyset in 4-12 Motor Speed Low Limit [Hz].1. Press [Main Menu].2. Scroll to 1-28 Motor Rotation Check and press[OK].3. Scroll to [1] Enable.The following text appears: Note! Motor may run in wrongdirection.4. Press [OK].5. Follow the on-screen instructions.NOTICE!To change the direction of rotation, remove power tothe adjustable frequency drive and wait for power todischarge. Reverse the connection of any two of thethree motor wires on the motor or adjustable frequencydrive side of the connection.Commissioning Instruction ManualMG20MA22 Danfoss A/S © 10/2014 All rights reserved. 315 5