Danfoss VT2800 Series Design Manual

Contents

VLT ® 2800 Series3 x 380 - 480 Volt mains voltageTypical shaft outputP INV.Max. constant outputcurrent I INV.Max. constant output powerat 400 V S INV.Type [kW] [HP] [A] [kVA]2805 0.55 0.75 1.7 1.12807 0.75 1.0 2.1 1.72811 1.1 1.5 3.0 2.02815 1.5 2.0 3.7 2.62822 2.2 3.0 5.2 3.62830 3.0 4.0 7.0 4.82840 4.0 5.0 9.1 6.32855 5.5 7.5 12.0 8.32875 7.5 10.0 16.0 11.12880 11 15 24 16.62881 15 20 32 22.22882 18.5 25 37.5 26.0■ EnclosureAll VLT 2800 units are supplied with IP 20enclosure as standard.This enclosure level is ideal for panel mountingin areas where a high degree of protection isrequired; at the same time IP 20 enclosuresallow side-by-side installation without any needfor extra cooling equipment.IP 20 units can be upgraded with IP 21 / topcover and/or NEMA 1 by fitting a terminal cover.See ordering number for terminal cover underAccessories for VLT 2800 .In addition, VLT 2880-82 units are supplied withNema 1 enclosure as standard.■ BrakeVLT 2800 is available with or without an integralbrake module. See also the section entitled Brakeresistors for ordering a Brake resistor.■ Wobble functionThe wobble function is used for winding applicationsin the textile industries. All VLT 2800 frequencyconverters are supplied with a wobble function as astandard feature. The frequency converter is able tooperate a motor, which turns a grooved drum. Duringwinding, the grooved drum places the thread in thecorrect position on the bobbin, in a diamond pattern.For further information, see VLT 2800 WobbleInstruction MI50JXYY.■ RFI filterVLT 2800 is available with or without an integral1A RFI-filter. The integral 1A RFI filter complieswith EMC standards EN 55011-1A.With an integral RFI filter there is compliance with EN55011-1B with a max. 15-metre screened/armouredmotor cable on VLT 2803-2815 1 x 220-240 Volt.VLT 2880-82 with integral 1B filter comply withEMC standard EN 50011 - 1B■ Harmonic filterThe harmonic currents do not affect powerconsumption directly, but they increase the heat lossesin the installation (transformer, cables). That is why, ina system with a relatively high percentage of rectifierload, it is important to keep the harmonic currents ata low level so as to avoid a transformer overload andhigh cable temperature. For the purpose of ensuringlow harmonic currents, VLT 2822-2840 3 x 200-240V and VLT 2805-2882 380-480 V are fitted with coilsin their intermediate circuit as standard. This reducesthe input current I RMS by typically 40 %.Please note that 1 x 220-240 V units are not suppliedwith coils in their intermediate circuit.■ FC protocolDanfoss frequency converters are able to fulfillmany different functions in a monitoring system.The frequency converter can be integrated directlyin an overall surveillance system, which willallow detailed process data to be transferredvia serial communication.MG.28.E9.02 - VLT is a registered Danfoss trademark10