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VFD-L Series
Group 1: Basic Parameters
1 – 00
Maximum Output Frequency (Fo. max)
Settings
This parameter determines the AC drive's Maximum Output Frequency. All the AC
drive analog inputs (0 to +10V, 4 to 20mA) are scaled to correspond to the output
frequency range.
1 - 01
Maximum Voltage Frequency
Settings
This value should be set according to rated frequency of the motor as indicated on the
motor nameplate. Maximum Voltage Frequency determines the volts per hertz ratio.
For example, if the drive is rated for 460 VAC output and the Maximum Voltage
Frequency is set to 60Hz, the drive will maintain a constant ratio of 7.66 v/Hz. The
setting value must be greater than or equal to the middle freq. setting (Pr.1-03).
1 - 02
Max. Output Voltage (Vmax)
Settings
This parameter determines the Maximum Output Voltage of the AC drive. The
Maximum Output Voltage setting must be smaller than or equal to the rated voltage of
the motor as indicated on the motor nameplate. The setting value must be greater
than or equal to the Mid-Point Voltage (Pr.1-04).
1 - 03
Mid-Point Frequency (Fmid)
Settings d 1.0 to d 400Hz
This parameter sets the Mid-Point Frequency of V/F curve. With this setting, the V/F ratio
between Minimum Frequency and Mid-Point frequency can be determined.
parameter must be greater than or equal to Minimum Output Frequency (Pr.1-05) and
equal to or less than Maximum Voltage Frequency (Pr.1-01).
d 50.0 to d 400 Hz
d 10.0 to d 400Hz
d 2.0 to d 255V
Factory Setting: d 60.0
Factory Setting: d 60.0
Factory Setting: d 220
5-4
DELTA ELECTRONICS, INC. ALL RIGHTS RESERVED
Unit: 0.1Hz
Unit: 0.1Hz
Unit: 0.1V
Factory Setting: d 1.0
Unit: 0.1Hz
This
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