Eaton MVX9000 Series, Руководство пользователя

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Group 50 — AC Drive Control
MVX9000 User Manual 5-33
Descriptions of
Parameter Settings
Figure 5-36: V/F Curve Changes
50.08
Mid-Point Output
Voltage
Range: 115/230V series 0.1 to 255V Default: 10.0
Range: 460V series 0.1 to 510V Default: 20.0
Range: 575V series 0.1 to 637V Default: 26.1
The parameter sets the Mid-Point Voltage of any V/F curve.
With this setting, the V/F ratio between Minimum Frequency
and Mid-Point Frequency can be determined.
This parameter
must 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.
50.09
Minimum Output
Frequency
Range: 0.1 to 20.0 Hz Default: 1.5
Unit: 0.1 Hz
This parameter sets the Minimum Output Frequency of the
AC drive V/F curve. This parameter must be equal to or less
than the Mid-Point Output Frequency (50.07).
50.10
Minimum Output
Voltage
Range: 115/230V series 0.1 to 50V Default: 10.0
Range: 460V series 0.1 to 100V Default: 20.0
Range: 575V series 0.1 to 637V Default: 26.1
This parameter sets the Minimum Output Voltage of the AC
drive V/F curve. This parameter must be equal to or less than
Mid-Point Output Voltage (50.08).
During Sensorless Vector this parameter is disabled.
Figure 5-36 shows three examples of how a V/F curve may
change due to the setting of parameters 50.04 to 50.10.
Voltage
Frequency
50.06
50.08
50.10
0 50.07
50.09
50.04
50.05
Standard V/F Curve