http://danfoss.ipapercms.dk/Drives/DD/Global/SalesPromotion/Factsheets/OptionFactsheets/02MO016Axx/RSS.ashxDanfoss Drives PagesTue, 20 Sep 2011 09:30:53 +0200http://danfoss.ipapercms.dk/Drives/DD/Global/SalesPromotion/Factsheets/OptionFactsheets/02MO016Axx/http://danfoss.ipapercms.dk/Drives/DD/Global/SalesPromotion/Factsheets/OptionFactsheets/02MO016Axx/?Page=1http://danfoss.ipapercms.dk/Drives/DD/Global/SalesPromotion/Factsheets/OptionFactsheets/02MO016Axx/?Page=1MAKING MODERN LIVING POSSIBLE VLT® Power Option Sine-Wave Filter Sine-wave output filters are low-pass filters that suppress the switching frequency component from the drive and smooth out the phase-to-phase output voltage of the drive to become sinusoidal. This reduces the motor insulation stress and bearing currents. By supplying the motor with a sinusoidal voltage waveform, the switching acoustic noise from the motor is also eliminated. Thermal losses and bearing currents The sinusoidal voltage supply to the motor reduces hysteresis thermal losses in the motor. Since the motor insulation lifetime is dependent on the motor temperature, the sine-wave filter prolongs the lifetime of the motor. The sinusoidal motor terminal voltage from the sine-wave filter furthermore has the advantage of suppressing any bearing currents in the motor. This reduces the risk of flashover in the motor bearings and thereby also contributes to extended motor lifetime and increased service intervals. Quality and Design All filters are designed and tested for operation with the VLT® AutomationDrive FC 302, VLT® AQUA Drive FC 202, and the VLT® HVAC Drive FC 102. They are rated for the nominal switching frequency of the VLT® FC series and therefore no derating of the drive is needed. Feature Supplies the motor with a sinusoidal voltage waveform Eliminates over-voltages and voltage spikes caused by cable reflections Reduces electromagnetic interference by eliminating pulse reflection caused by current ringing in the motor cable. This allows the use of unshielded motor cables in some applications. Eliminates acoustic noise in motor Reduces high frequent losses in motor The enclosure is designed to match the look and quality of the VLT® FC series drives. Advantages Compatible with all control principles including flux and VVC+ ■ Parallel filter installation is possible for applications in the high power range ■ Range 3 x 200 – 500 V, 2.5 – 800 A 3 x 525 – 690 V, 13 – 660 A Enclosures IP 00 and IP 20 wall-mounted enclosure up to 75 A (500 V)/ 13 A (690 V) ■ IP 23 floor-standing enclosure from 115 A (500 V) / 28 A (690 V) ■ ■ Mounting Side by side mount with the drive up to 75 A (500 V) Perfect match for: – Applications with older motors – Aggressive environments – Applications with frequent braking – 690 V applications with general purpose motors – Motor cable length above 150 metres Benefit Prevents flashover in motor windings Protects the motor insulation against premature aging Trouble-free operation Noiseless motor operation Prolongs service interval of motor Facts about our products2011-09-20T09:30:53+02:00http://danfoss.ipapercms.dk/Drives/DD/Global/SalesPromotion/Factsheets/OptionFactsheets/02MO016Axx/?Page=2http://danfoss.ipapercms.dk/Drives/DD/Global/SalesPromotion/Factsheets/OptionFactsheets/02MO016Axx/?Page=2Specifications Voltage rating Nominal current IN @ 50 Hz Motor frequency Ambient temperature Min. switching frequency Max. switching frequency Overload capacity Enclosure degree Approvals Voltage and current without filter 3 x 200 – 500 V and 3 x 525 – 690 V 2.5 – 800A for higher power modules can be paralleled 0 – 60 Hz without derating 100/120 Hz (up to 10 A) with derating -25° to 45°C without derating fmin 1.5 kHz – 5 kHz depending on filter type fmax 8 kHz 160 % for 60 sec every 10 min. IP 00/IP 20/IP 23 (ref. page 1) CE, UL508 Relative sound pressure measurements from the motor with and without sine-wave filter Voltage and current with filter No filter With sine-wave filter Performance Criteria Motor insulation stress Motor bearing stress EMC performance du/dt filters Up to 100 m cable (shielded/unshielded) complies with the requirements of IEC60034-17* (general purpose motors). Above this cable length the risk of “double pulsing” increases. Slightly reduced, mainly in high power motors. Eliminates motor cable ringing. Does not change the emission class. Does not allow longer motor cables as specified for the frequency converter’s built-in RFI filter. 100 m . 150 m With guaranteed EMC performance: 150 m screened Without guaranteed EMC performance: 150 m unscreened Does not eliminate acoustic switching noise from the motor. 15 – 50% (depending on power size). 50% Sine-wave filters Provides a sinusoidal phase-to-phase motor terminal voltage. Complies with IEC-60034-17* and NEMA-MG1 requirements for general purpose motors with cables up to 500 m (1 km for frame size D and above). Reduces bearing currents caused by circulating currents. Does not reduce common-mode currents (shaft currents). Eliminates motor cable ringing. Does not change the emission class. Does not allow longer motor cables as specified for the frequency converter’s built-in RFI filter. With guaranteed EMC performance: 150 m shielded and 300 m unshielded (only conducted emissions). Without guaranteed EMC performance: up to 500 m (1 km for frame size D and above). Eliminates acoustic switching noise from the motor caused by magnetostriction. 100% 100% Max. motor cable length Acoustic motor switching noise Relative size Relative price *Not 690 V Danfoss VLT Drives, Ulsnaes 1, DK-6300 Graasten, Denmark, Tel. +45 74 88 22 22, Fax +45 74 65 25 80, www.danfoss.com/drives • info@danfoss.com MO016A02 VLT® is a trademark of Danfoss A/S PE-MMSC 2011.082011-09-20T09:30:53+02:00