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Adjustable Frequency DrivesSPA9000/SPN9000/SPI9000 Common DC Bus Drive Products36.9SPA9000/SPN9000/SPI9000 Common DC Bus Drive ProductsProduct DescriptionEaton offers a comprehensiverange of common DC busdrive products. The productfamily covers a number offront-end units and inverterunits in the entire powerrange from 1-1/2 to 2000horsepower at 460V and690V. The drive componentsare built on the SPX9000technology.Front-End UnitsThe front-end units convert amains AC voltage and currentinto a DC voltage and current.The power is transferredfrom the mains to a commonDC bus (and, in certain cases,vice versa).The SPA (active front-end)unit is a bidirectional(regenerative) powerconverter for the front endof a common DC bus driveline up. An external LCL filteris used at the input. This unitis suitable in applicationswhere low mains harmonicsare required.ContentsDescriptionSPA9000/SPN9000/SPI9000Common DC Bus Drive ProductsApplication Description . . . . . . . . . . . . . . . . . . .Product Comparison . . . . . . . . . . . . . . . . . . . . .Features . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Standards and Certifications . . . . . . . . . . . . . . .Catalog Number Selection . . . . . . . . . . . . . . . .Product Selection . . . . . . . . . . . . . . . . . . . . . . .Options . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .Technical Data and Specifications . . . . . . . . . .Wiring Diagrams . . . . . . . . . . . . . . . . . . . . . . . .Dimensions . . . . . . . . . . . . . . . . . . . . . . . . . . .The SPN (non-regenerativefront-end) unit is a unidirectional(motoring) powerconverter for the front-endof a common DC bus driveline-up. The device operatesas a diode bridge using diode/thyristor components. Adedicated external choke isused at the input. The unithas the capacity to charge acommon DC bus. This unit issuitable as a rectifying devicewhen a “normal” level ofharmonics is accepted andno regeneration to the mainsis required.PageV6-T36-240V6-T36-240V6-T36-241V6-T36-241V6-T36-241V6-T36-243V6-T36-246V6-T36-247V6-T36-249V6-T36-250Inverter UnitThe SPI9000 Inverter Unit is abidirectional DC-fed powerinverter for the supply andcontrol of AC motors. Theinverter is supplied from acommon DC bus drive lineup.A charging circuit isneeded in case a connectionto a live DC bus is required.The DC side charging circuitis integrated up to 75 kW(FR4–FR8) and externalfor higher power ratings(FI9–FI14).363636363636363636363636363636363636363636363636363636363636Volume 6—Solid-State Motor Control CA08100007E—April 2011 www.eaton.comV6-T36-239