Danfoss VLT AQUA Drive FC 202 Programming Manual

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

Contents

Danfoss VLT AQUA Drive FC 202 Programming Manual Manual pdf 9 page image

FC Standard BusIncludes RS-485 bus with FC protocol or MC protocol. Seeparameter 8-30 Protocol.THDTotal Harmonic Distortion states the total contribution ofharmonic.ThermistorA temperature-dependent resistor placed where thetemperature is to be monitored (frequency converter ormotor).TripA state entered in fault situations, e.g. if the frequencyconverter is subject to an over-temperature or when thefrequency converter is protecting the motor, process ormechanism. Restart is prevented until the cause of thefault has disappeared and the trip state is cancelled byactivating reset or, in some cases, by being programmedto reset automatically. Trip may not be used for personalsafety.Trip LockedA state entered in fault situations when the frequencyconverter is protecting itself and requiring physicalintervention, e.g. if the frequency converter is subject to ashort circuit on the output. A locked trip can only becancelled by disconnecting mains, removing the cause ofthe fault, and reconnecting the frequency converter.Restart is prevented until the trip state is cancelled byactivating reset or, in some cases, by being programmedto reset automatically. The Trip Locked state may not beused for personal safety.VT CharacteristicsVariable torque characteristics used for pumps and fans.VVC+If compared with standard voltage/frequency ratio control,Voltage Vector Control (VVC+) improves the dynamics andthe stability, both when the speed reference is changedand in relation to the load torque.60° AVMSwitching pattern called 60° Asynchronous VectorModulation (14-00 Switching Pattern).Power FactorThe power factor is the relation between I1 and IRMS.Power factor = 3x U x I1cosϕ3x U x IRMSThe power factor for 3-phase control:=I1x cosϕ1IRMS =I1IRMS since cosϕ1 = 1The power factor indicates to which extent the frequencyconverter imposes a load on the mains supply.The lower the power factor, the higher the IRMS for thesame kW performance.IRMS =I12 +I52 +I72 + .. +In2In addition, a high power factor indicates that the differentharmonic currents are low.The frequency converters' built-in DC coils produce a highpower factor, which minimizes the imposed load on themains supply.1.7 Abbreviations, Symbols andConventionsAC Alternating currentAWG American wire gaugeA Ampere/AMPAMA Automatic Motor AdaptationILIM Current limit°C Degrees CelsiusDC Direct currentD-TYPE Drive DependentEMC Electro Magnetic CompatibilityETR Electronic Thermal RelayFC Frequency converterg GramHz Hertzhp HorsepowerkHz KilohertzLCP Local Control Panelm MetermH Millihenry InductancemA Milliamperems Millisecondmin MinuteMCT Motion Control ToolnF NanofaradNm Newton MetersIM,N Nominal motor currentfM,N Nominal motor frequencyPM,N Nominal motor powerUM,N Nominal motor voltagePM motor Permanent Magnet motorPELV Protective Extra Low VoltagePCB Printed Circuit BoardIINV Rated Inverter Output CurrentRPM Revolutions Per MinuteRegen Regenerative terminalssec. Secondns Synchronous Motor SpeedTLIM Torque limitV VoltsIVLT,MAX The maximum output currentIVLT,N The rated output current supplied by thefrequency converterIntroduction Programming GuideMG20O702 Danfoss A/S © Rev. 2014-01-21 All rights reserved. 71 1