Danfoss VLT Decentral Drive FCD 302 Operating Manual

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Danfoss VLT Decentral Drive FCD 302 Operating Manual Manual pdf 33 page image

6 Maintenance, Diagnostics, and Troubleshooting6.1 IntroductionThis chapter includes:• Maintenance and service guidelines.• Status messages.• Warnings and alarms.• Basic troubleshooting.6.2 Maintenance and ServiceUnder normal operating conditions and load profiles, thefrequency converter is maintenance-free throughout itsdesigned lifetime. To prevent breakdown, danger, anddamage, examine the frequency converter at regularintervals depending on the operating conditions. Replaceworn or damaged parts with original spare parts orstandard parts. For service and support, contact the localDanfoss supplier.WARNINGUNINTENDED STARTWhen the frequency converter is connected to AC mains,DC supply, or load sharing, the motor can start at anytime. Unintended start during programming, service, orrepair work can result in death, serious injury, orproperty damage. The motor can start with an externalswitch, a fieldbus command, an input reference signalfrom the LCP or LOP, via remote operation using MCT 10Set-up Software, or after a cleared fault condition.To prevent unintended motor start:• Press [Off/Reset] on the LCP beforeprogramming parameters.• Disconnect the frequency converter from themains.• Completely wire and assemble the frequencyconverter, motor, and any driven equipmentbefore connecting the frequency converter toAC mains, DC supply, or load sharing.6.2.1 CleaningThe enclosure (IP66/NEMA type 4x indoor) providesprotection against dirt and water ingress. The enclosure issuitable for cleaning methods and solvents used in foodand beverage plants. Use the solvent concentrationrecommended by the manufacturer. Avoid high-pressurehot water cleaning at close proximity or of long duration,because this method of cleaning can damage gaskets andlabels.Do not dispose of equipment containingelectrical components together withdomestic waste.Collect it separately in accordance withlocal and currently valid legislation.6.3 Frontal LEDsThe actual status can be read via 6 LEDs, which signal theactual status of the unit. The meaning of each LED isdescribed in Table 6.1.130BB710.10AlarmONBus MS NS1 NS2WarningIllustration 6.1 Frontal LEDsName Color Status IndicationON Green On The frequency converterreceives power from mainsvoltage, or 24 V externalsupply.Off No power from mainsvoltage, or 24 V externalsupply.Warning Yellow On Warning situation is present.Off No warning is present.Alarm Red Flashing Alarm is present.Off No alarm is presentBus MS Only relevant ifoptional fieldbus ispresent. See the VLT®AutomationDrive FC302 PROFIBUSConverter OperatingInstructions, VLT®Ethernet/IP MCA 121Installation Guide, andVLT® PROFINET MCA120 Installation Guidefor specificinformation.Bus module statusBus NS1 Bus network status 1Bus NS2 Bus network status 2Table 6.1 LED StatusMaintenance, Diagnostics, a... Operating GuideMG04F502 Danfoss A/S © 11/2016 All rights reserved. 316 6