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

7 Maintenance, Diagnostics, and TroubleshootingThis chapter includes:• Maintenance and service guidelines.• Status messages.• Warnings and alarms.• Basic troubleshooting.7.1 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 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 LOP, via remote operation using MCT 10Set-up Software, or after a cleared fault condition.7.2 Status MessagesWhen the frequency converter is in Status mode, statusmessages are generated automatically and appear in thebottom line of the display (see Illustration 7.1).Status799RPM 7.83A 36.4kW0.00053.2%1(1)AutoHandOffRemoteLocal RampingStopRunningJogging...Stand by130BB037.111 2 31 Operating mode (see Table 7.1)2 Reference site (see Table 7.2)3 Operation status (see Table 7.3)Illustration 7.1 Status DisplayTable 7.1 to Table 7.3 describe the status messages shown.Off The frequency converter does not react to anycontrol signal until [Auto On] or [Hand On] ispressed.Auto On The frequency converter is controlled from thecontrol terminals and/or the serial communi-cation.Hand On Control the frequency converter via thenavigation keys on the LCP. Stop commands,reset, reversing, DC brake, and other signalsapplied to the control terminals override localcontrol.Table 7.1 Operating ModeRemote The speed reference is given from externalsignals, serial communication, or internalpreset references.Local The frequency converter uses [Hand On]control or reference values from the LCP.Table 7.2 Reference SiteAC Brake [2] AC brake is selected in parameter 2-10 BrakeFunction. The AC brake overmagnetizes themotor to achieve a controlled slow down.AMA finish OK AMA was carried out successfully.AMA ready AMA is ready to start. Press [Hand On] to start.AMA running AMA process is in progress.Braking The brake chopper is in operation. Generativeenergy is absorbed by the brake resistor.Maintenance, Diagnostics, a... VLT® AQUA Drive FC 20236 Danfoss A/S © 10/2016 All rights reserved. MG20MD0277