Danfoss VLT AQUA Drive FC 202 Operating Instructions Manual

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

7 Maintenance, Diagnostics and TroubleshootingThis chapter includes maintenance and service guidelines,status messages, warnings and alarms and basic trouble-shooting.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, refer towww.danfoss.com/contact/sales_and_services/.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.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 Operation mode (see Table 7.2)2 Reference site (see Table 7.3)3 Operation status (see Table 7.4)Illustration 7.1 Status DisplayTable 7.2 to Table 7.4 describe the displayed statusmessages.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 The frequency converter is controlled by thenavigation keys on the LCP. Stop commands,reset, reversing, DC brake, and other signalsapplied to the control terminals override localcontrol.Table 7.1 Operation 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 AC Brake was selected in 2-10 Brake Function.The AC brake over-magnetises the motor toachieve a controlled slow-down.AMA finish OK Automatic motor adaptation (AMA) wascarried 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.Braking max. The brake chopper is in operation. The powerlimit for the brake resistor defined in2-12 Brake Power Limit (kW) has been reached.Coast • Coast inverse was selected as a functionfor a digital input (parameter group 5-1*Digital Inputs). The corresponding terminalis not connected.• Coast activated by serial communicationCtrl. Ramp-down Control Ramp-down was selected in14-10 Mains Failure.• The mains voltage is below the value setin 14-11 Mains Voltage at Mains Fault atmains fault• The frequency converter ramps down themotor using a controlled ramp downMaintenance, Diagnostics an... VLT® AQUA Drive FC 202 Operating Instructions32 MG20MA02 - Rev. 2013-10-2977