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PowerFlex 750-Series AC Drives User Manual

PowerFlex 750-Series AC Drives User Manual

PowerFlex 750-Series AC Drives User Manual

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B-52 Control Block DiagramsTorque Control - Load Observer / EstimatorA BC DE FG HI1Torque Control – Load Observer / Estimator23Notch FilterOutput[20H2]Pos Torque LimitNeg Torque LimitFilteredTrq Ref689670671TorqueLimitsLimitLimitedTrq Ref690***INTERNAL CONDITION ONLY***[20E2]1Total InertiaSystem ModelPrimaryEncoderAlternateEncoderPositionIA LdObsDelay709PositionFIRFilterFIRFilterVelocityVelocityddtDerivativeddtDerivativeAccelAccelDrive Status 2(Fdbk Loss Sw0)01936 5[3E1]4InAdp LdObs Mode704LoadObserver2Else0Load Observer BW711FilterLPassSpeed SensorTypeSensorlessElse10XMotor Acceleration FeedbackFrom Fdbk[3E3]5LoadEstimate707[20G3]10 R/SFilterLPass76Total InertiaLoad Observer / Estimator6PF755 Rev1.009c, 4/21/2009 Trq Load Observer/Estimator 23<strong>PowerFlex</strong> <strong>750</strong>-<strong>Series</strong> <strong>User</strong> <strong>Manual</strong> – Publication <strong>750</strong>-UM001C-EN-P – September 2009

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