Altivar 71 And Altivar 71 Plus Variable Speed Drives Page 65 Output Power Options

65 Altivar 71 variable speed drives Output Power Options dV/dt output filters In applications where the impedance on either end of the motor cable run does not match, voltage pulses may be reflected back. As these reflected waves encounter other waves, their values add, causing high peak voltages. Voltage wave reflection and peak voltages increase with longer cable lengths, increased drive switching frequency, and faster voltage rise times, (dV/dt). When installed, dV/dt filters increase the time it takes the voltage to rise, slowing the pulse transitions, reducing dV/dt, reducing voltage peaks, and protecting motor and cable insulation. For drives Nominal current UL Recog- nized Part Number Weight A lbs kg Three-phase supply voltage: 380 & 480 V 50/60 Hz ATV71H075N4 3 V1K3A00 8 4 ATV71HU15N4 4 V1K4A00 8 4 ATV71HU22N4 6 V1K6A00 8 4 ATV71HU30N4 8 V1K8A00 8 4 ATV71HU40N4 12 V1K12A00 8 4 ATV71HU55N4 16 V1K16A00 12 5 ATV71HU75N4 18 V1K18A00 12 5 ATV71HD11N4 27 V1K27A00 12 5 ATV71HD15N4 35 V1K35A00 12 5 ATV71HD18N4 45 V1K45A00 17 8 ATV71HD22N4 55 V1K55A00 16 7 ATV71HD30N4 80 V1K80A00 23 10 ATV71HD37N4 80 V1K80A00 23 10 ATV71HD45N4 110 V1K110A00 40 18 ATV71HD55N4 130 V1K130A00 55 25 ATV71HD75N4 160 V1K160A00 60 27 ATV71HD90N4 200 V1K200A00 60 27 ATV71HC11N4 250 V1K250A00 65 29 ATV71HC13N4 305 V1K305A00 80 36 ATV71HC16N4 362 V1K362A00 80 36 ATV71HC20N4 420 V1K420A00 95 43 ATV71HC25N4 480 V1K480A00 100 45 ATV71HC28N4 600 V1K600A00 130 59 ATV71HC31N4 750 V1K750A00 135 61

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