Group 50 — AC Drive ControlMVX9000 User Manual 5-33Descriptions ofParameter SettingsFigure 5-36: V/F Curve Changes50.08Mid-Point OutputVoltageRange: 115/230V series 0.1 to 255V Default: 10.0Range: 460V series 0.1 to 510V Default: 20.0Range: 575V series 0.1 to 637V Default: 26.1The parameter sets the Mid-Point Voltage of any V/F curve.With this setting, the V/F ratio between Minimum Frequencyand Mid-Point Frequency can be determined. This parametermust be equal to or greater than Minimum Output Voltage(50.10) and equal to or less than Motor Nameplate Voltage(50.06).During Sensorless Vector this parameter is disabled.50.09Minimum OutputFrequencyRange: 0.1 to 20.0 Hz Default: 1.5Unit: 0.1 HzThis parameter sets the Minimum Output Frequency of theAC drive V/F curve. This parameter must be equal to or lessthan the Mid-Point Output Frequency (50.07).50.10Minimum OutputVoltageRange: 115/230V series 0.1 to 50V Default: 10.0Range: 460V series 0.1 to 100V Default: 20.0Range: 575V series 0.1 to 637V Default: 26.1This parameter sets the Minimum Output Voltage of the ACdrive V/F curve. This parameter must be equal to or less thanMid-Point Output Voltage (50.08).During Sensorless Vector this parameter is disabled.Figure 5-36 shows three examples of how a V/F curve maychange due to the setting of parameters 50.04 to 50.10.VoltageFrequency50.0650.0850.100 50.0750.09 50.0450.05Standard V/F Curve
