Danfoss VLT AQUA Drive FC 202 Operating Manual

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

Contents

9 Maintenance, Diagnostics, and TroubleshootingThis chapter includes:• Maintenance and service guidelines.• Status messages.• Warnings and alarms.• Basic troubleshooting.9.1 Maintenance and ServiceUnder normal operating conditions and load profiles, thedrive is maintenance-free throughout its designed lifetime.To prevent breakdown, danger, and damage, examine thedrive at regular intervals depending on the operatingconditions. Replace worn or damaged parts with originalspare parts or standard parts. For service and support, referto www.danfoss.com/en/contact-us/contacts-list/?filter=type%3Adanfoss-sales-service-center%2Csegments%3ADDS.WARNINGUNINTENDED STARTWhen the drive is connected to AC mains, DC supply, orload sharing, the motor can start at any time.Unintended start during programming, service, or repairwork can result in death, serious injury, or propertydamage. The motor can start with an external switch, afieldbus command, an input reference signal from theLCP or LOP, via remote operation using MCT 10 Set-upSoftware, or after a cleared fault condition.To prevent unintended motor start:• Press [Off/Reset] on the LCP beforeprogramming parameters.• Disconnect the drive from the mains.• Completely wire and assemble the drive, motor,and any driven equipment before connectingthe drive to AC mains, DC supply, or loadsharing.9.2 Heat Sink Access Panel9.2.1 Removing the Heat Sink Access PanelThe drive can be ordered with an optional access panel inthe back of the unit. This panel provides access to the heatsink and allows the heat sink to be cleaned of any dustbuildup.130BD430.10Illustration 9.1 Heat Sink Access PanelNOTICEDAMAGE TO HEAT SINKUsing fasteners that are longer than those originallysupplied with the heat sink panel can damage the heatsink cooling fins.1. Remove power from the drive and wait 20minutes for the capacitors to dischargecompletely. Refer to chapter 2 Safety.2. Position the drive so that the back of the drive isaccessible.3. Remove the screws (3 mm [0.12 in] internal hex)connecting the access panel to the back of theenclosure. There are 5 or 9 screws depending onthe size of the drive.4. Inspect the heat sink for damage or dust buildup.5. Remove dust and debris with a vacuum.6. Replace the panel and secure it to the back ofthe enclosure with the screws previouslyremoved. Tighten the fasteners according tochapter 10.8 Fastener Tightening Torques.Maintenance, Diagnostics, a... VLT® AQUA Drive FC 20282 Danfoss A/S © 09/2018 All rights reserved. MG21A50299