Non-regenerative front end vacon • 181Local contacts: http://drives.danfoss.com/danfoss-drives/local-contacts/1111.6 Non-regenerative Front End unit technical dataThe technical data for the non-regenerative front end unit, see table below.Table 72. Technical dataMains connection Input voltage U in 2 x 3ph 400…690 VAC (–10%…+10%);Input frequency 45…66 HzOutput connectionOutput voltage U in x 1.35Output frequency DC-voltageDC bank capacitance 4800μFControlcharacteristics External NXP controlRun/StopControl and supervision for external DC prechargingcircuitControl and supervision for external ACB'sDC-voltage supervisionInput phase and undervoltage supervisionChoke temperature supervisionUnit temperarture supervisionFan operation supervisionOptional current monitorCurrent capacityInput current I th 2 x 1000A ACOutput current I th 2400ADCOverload No overloadPower lossesPower loss into coolant: 5.7 kWPower loss into air: 0.5 kWPower losses of the chokes: see Table 76.AmbientconditionsAmbient operatingtemperature–10 °C (no frost)…+50 °C (at I th)The NX Liquid-Cooled drives must be used in anheated indoor controlled environment.Installationtemperature 0...+70 °CStorage temperature –40 °C…+70 °C; No liquid in heatsink under 0 ºCRelative humidity 5 to 96% RH, non-condensing, no dripping waterAir quality:• chemicalvapours• mechanicalparticlesNo corrosive gasesIEC 60721-3-3, unit in operation, class 3C2IEC 60721-3-3, unit in operation, class 3S2 (noconductive dust allowed)Altitude400...500 V: 3000m ASL; in case network is not cornergrounded500...690 V: max. 2000m ASLVibration 5…150 HzShockEN 50178, EN 60068-2-27UPS Drop Test (for applicable UPS weights)Storage and shipping: max 15 G, 11 ms (in package)Enclosure class IP00/Open
