Minimum Output Frequency (Fmin); Minimum Output Voltage (Vmin); Output Frequency Upper Limit - Delta Electronics AC Motor Drive VFD-EL User Manual

Chapter 4 Parameters|
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).
01.05

Minimum Output Frequency (Fmin)

Settings
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).
01.06

Minimum Output Voltage (Vmin)

Settings
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

Settings
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.
4-32
0.10 to 600.0Hz
115V/230V series 0.1 to 255.0V
460V series 0.1 to 510.0V
0.1 to 120.0%
01.08
Output Frequency
Voltage
Lower Limit
01.02
Maximum
Output
Voltage
01.04
Mid-point
Voltage
01.06
Minimum
01.05 01.03
Output
Mid-point
Minimum
Voltage
Freq.
Output
Freq.
01.07
Output Frequency
Upper Limit
The limit of
Output
Frequency
01.01
Maximum Voltage
Frequency
(Base Frequency)
V/f Curve
Factory Setting: 1.50
Factory Setting: 10.0
Factory Setting: 20.0
Factory Setting: 110.0
Frequency
01.00
Maximum
Output
Frequency
Revision August 2008, 2ELE, V1.02
Unit: 0.01
Unit: 0.1
Unit: 0.1