Danfoss VLT Decentral Drive FCD 302 Operating Manual

Also see for vlt fcd 302: Installation guide Operating guide Operating instructions Programming guide Operating guide

Danfoss VLT Decentral Drive FCD 302 Operating Manual Manual pdf 28 page image

5 Commissioning5.1 Applying PowerWARNINGUNINTENDED STARTWhen the frequency converter is connected to AC mains,DC supply, or load sharing, the motor may start at anytime. Unintended start during programming, service, orrepair work can result in death, serious injury, orproperty damage. The motor can start via an externalswitch, a fieldbus command, an input reference signalfrom the LCP, or after a cleared fault condition.To prevent unintended motor start:• Disconnect the frequency converter from themains.• Press [Off/Reset] on the LCP beforeprogramming parameters.• Completely wire and assemble the frequencyconverter, motor, and any driven equipmentbefore connecting the frequency converter toAC mains, DC supply, or load sharing.See 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.Apply 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.5.2 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.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.Commissioning VLT® Decentral Drive FCD 30226 Danfoss A/S © 11/2016 All rights reserved. MG04F50255