7.3 Testing Before System Start-upWARNINGMOTOR STARTFailure to ensure that the motor, system, and anyattached equipment are ready for start can result inpersonal injury or equipment damage. Before start,• Ensure that equipment is safe to operate underany condition.• Ensure that the motor, system, and anyattached equipment are ready for start.7.3.1 Motor RotationNOTICEIf the motor runs in the wrong direction, it can damageequipment. Before running the unit, check the motorrotation by briefly running the motor. The motor runsbriefly at either 5 Hz or the minimum frequency set inparameter 4-12 Motor Speed Low Limit [Hz].1. Press [Hand On].2. Move the left cursor to the left of the decimalpoint by using the left arrow key, and enter anRPM that slowly rotates the motor.3. Press [OK].4. If the motor rotation is wrong, setparameter 1-06 Clockwise Direction to [1] Inverse.7.3.2 Encoder RotationIf encoder feedback is used, perform the following steps:1. Select [0] Open Loop in parameter 1-00 Configu-ration Mode.2. Select [1] 24 V encoder in parameter 7-00 SpeedPID Feedback Source.3. Press [Hand On].4. Press [►] for positive speed reference(parameter 1-06 Clockwise Direction at [0] Normal).5. In parameter 16-57 Feedback [RPM], check that thefeedback is positive.For more information on the encoder option, refer to theoption manual.NOTICENEGATIVE FEEDBACKIf the feedback is negative, the encoder connection iswrong. Use either parameter 5-71 Term 32/33 EncoderDirection or parameter 17-60 Feedback Direction toinverse the direction, or reverse the encoder cables.Parameter 17-60 Feedback Direction is only available withthe VLT® Encoder Input MCB 102 option.7.4 System Start-upWARNINGMOTOR STARTFailure to ensure that the motor, system, and anyattached equipment are ready for start can result inpersonal injury or equipment damage. Before start,• Ensure that equipment is safe to operate underany condition.• Ensure that the motor, system, and anyattached equipment are ready for start.The procedure in this section requires user-wiring andapplication programming to be completed. The followingprocedure is recommended after application set-up iscompleted.1. Press [Auto On].2. Apply an external run command.Examples of external run commands are a switch,key, or programmable logic controller (PLC).3. Adjust the speed reference throughout the speedrange.4. Ensure that the system is working as intended bychecking sound and vibration level of the motor.5. Remove the external run command.If warnings or alarms occur, see chapter 9.5 List of Warningsand Alarms.Commissioning VLT® AutomationDrive FC 36138 Danfoss A/S © 06/2018 All rights reserved. MG06I10277