1.7 Selecting the Correct Frequency Converter1.7.1 IntroductionThis section explains how to specify and order a VLT 2800.The frequency converter must be selected on the basis of the present motor current at maximum loading of the unit. Thefrequency converter's rated output current IINV. must be equal to or greater than the required motor current.Mains VoltageVLT 2800 is available for 2 mains voltage ranges:• 200-240 V and• 380-480 V.Select whether the frequency converter is connected to a mains voltage of:• 1x220-240 V single-phase AC voltage• 3x200-240 V 3-phase AC voltage• 3x380-480 V 3-phase AC voltageTypical shaft outputPINV.Maximum constant output current IINV. Maximum constant output power at230 V SINV.Type [kW] [HP] [A] [kVA]2803 0.37 0.5 2.2 0.92805 0.55 0.75 3.2 1.32807 0.75 1.0 4.2 1.72811 1.1 1.5 6.0 2.42815 1.5 2.0 6.8 2.72822 2.2 3.0 9.6 3.82840 3.7 5.0 16 6.4Table 1.1 1x220-240 V Mains VoltageTypical shaft outputPINV.Maximum constant output current IINV. Maximum constant output power at230 V SINV.Type [kW] [HP] [A] [kVA]2803 0.37 0.5 2.2 0.92805 0.55 0.75 3.2 1.32807 0.75 1.0 4.2 1.72811 1.1 1.5 6.0 2.42815 1.5 2.0 6.8 2.72822 2.2 3.0 9.6 3.82840 3.7 5.0 16.0 6.4Table 1.2 3x200-240 V Mains VoltageIntroduction to VLT 2800 Design GuideMG27E402 Danfoss A/S © Rev. May/2014 All rights reserved. 91 1
