5 Commissioning5.1 Safety InstructionsSee chapter 2 Safety for general safety instructions.WARNINGHIGH VOLTAGEFrequency converters contain high voltage whenconnected to AC mains input power. Failure to performinstallation, start-up, and maintenance by qualifiedpersonnel could result in death or serious injury.• Installation, start-up, and maintenance must beperformed by qualified personnel only.Before applying power:1. Close the cover properly.2. Check that all cable glands are firmly tightened.3. Ensure that input power to the unit is off andlocked out. Do not rely on the frequencyconverter disconnect switches for input powerisolation.4. Verify that there is no voltage on input terminalsL1 (91), L2 (92), and L3 (93), phase-to-phase, andphase-to-ground.5. Verify that there is no voltage on outputterminals 96 (U), 97 (V), and 98 (W), phase-to-phase, and phase-to-ground.6. Confirm continuity of the motor by measuring Ωvalues on U–V (96–97), V–W (97–98), and W–U(98–96).7. Check for proper grounding of the frequencyconverter and the motor.8. Inspect the frequency converter for looseconnections on the terminals.9. Confirm that the supply voltage matches thevoltage of the frequency converter and themotor.5.2 Applying PowerApply power to the frequency converter using thefollowing steps:1. Confirm that the input voltage is balanced within3%. If not, correct the input voltage imbalancebefore proceeding. Repeat this procedure afterthe voltage correction.2. Ensure that any optional equipment wiringmatches the installation application.3. Ensure that all operator devices are in the OFFposition. Panel doors must be closed and coverssecurely fastened.4. Apply power to the unit. Do not start thefrequency converter now. For units with adisconnect switch, turn it to the ON position toapply power to the frequency converter.5.3 Local Control Panel OperationThe local control panel (LCP) is the combined display andkeypad on the front of the unit.The LCP has several user functions:• Start, stop, and control speed when in localcontrol.• Show operational data, status, warnings, andcautions.• Program frequency converter functions.• Manually reset the frequency converter after afault when auto reset is inactive.An optional numeric LCP (NLCP) is also available. The NLCPoperates in a manner similar to the LCP. See the productrelevant programming guide for details on use of the NLCP.NOTICEFor commissioning via PC, install the MCT 10 Set-upSoftware. The software is available for download (basicversion) or for ordering (advanced version, code number130B1000). For more information and downloads, seewww.danfoss.com/BusinessAreas/DrivesSolutions/Software+MCT10/MCT10+Downloads.htm.5.3.1 Graphic Local Control Panel LayoutThe graphic local control panel (GLCP) is divided into 4functional groups (see Illustration 5.1).A. Display area.B. Display menu keys.C. Navigation keys and indicator lights.D. Operation keys and reset.Commissioning VLT® AQUA Drive FC 20224 Danfoss A/S © 10/2016 All rights reserved. MG20MD0255