Chapter 5 Parameters
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VFD-B Series
Revision July 2008, BE16, SW V4.08 & V5.00
5-29
01 - 04
Mid-Point Voltage (Vmid)
Unit: 0.1
Settings
230V series
0.1 to 255.0V
Factory Setting: 1.7
460V series
0.1 to 510.0V
Factory Setting: 3.4
575V series
0.1 to 637.0V
Factory Setting: 4.8
This 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 (Pr.01-06) and equal to or less than
Maximum Output Voltage (Pr.01-02).
This parameter is ineffective when Pr.11-00 is set to 1 to 4.
01 - 05
Minimum Output Frequency (Fmin)
Unit: 0.01
Settings 0.10 to 400.00Hz
Factory Setting: 0.50
This parameter sets the Minimum Output Frequency of the AC motor drive. This parameter
must be equal to or less than Mid-Point Frequency (Pr.01-03).
The settings of 01-03, 01-04, and 01-06 are invalid in Vector Control mode.
01 - 06
Minimum Output Voltage (Vmin)
Unit: 0.1
Settings
230V series
0.1 to 255.0V
Factory Setting: 1.7
460V series
0.1 to 510.0V
Factory Setting: 3.4
575V series
0.1 to 637.0V
Factory Setting: 4.8
This parameter sets the Minimum Output Voltage of the AC motor drive. This parameter must
be equal to or less than Mid-Point Voltage (Pr.01-04).
The settings of Pr.01-01 to Pr.01-06 have to meet the condition of Pr.01-02
≥
Pr.01-04
≥
Pr.01-
06 and Pr.01-01
≥
Pr.01-03
≥
Pr.01-05.
01 - 07
Output Frequency Upper Limit
Unit: 1
Settings
1 to 120%
Factory Setting: 100
This parameter must be equal to or greater than the Output Frequency Lower Limit (Pr.01-08).
The Maximum Output Frequency (Pr.01-00) is regarded as 100%.
Output Frequency Upper Limit value = (Pr.01-00 * Pr.01-07)/100.
