Vacon 100 - Page 118

Table 34: Open loop settings
Index Parameter Min Max Unit Default ID Description
P3.1.4.1
U/f Ratio 0 2 0 108
The type of the U/f
curve between zero
frequency and the field
weakening point.
0=Linear
1=Squared
2=Programmable
P3.1.4.2
Field Weakening
Point Frequency
8.00 P3.3.1.2 Hz Varies 602
The field weakening
point is the output
frequency at which the
output voltage reaches
the field weakening
point voltage.
P3.1.4.3
Voltage at Field
Weakening Point
10.00 200.00 % 100.00 603
The voltage at the field
weakening point as a
percentage of the
motor nominal voltage.
P3.1.4.4
U/f Midpoint
Frequency
0.00 P3.1.4.2. Hz Varies 604
If the value of P3.1.4.1
is programmable, this
parameter gives the
middle point frequency
of the curve.
P3.1.4.5 U/f Midpoint Voltage 0.0 100.0 % 100.0 605
If the value of P3.1.4.1
is programmable, this
parameter gives the
middle point voltage of
the curve.
P3.1.4.6
Zero Frequency
Voltage
0.00 40.00 % Varies 606
This parameter gives
the zero frequency
voltage of the U/f
curve. The default
value is different for
different unit sizes.
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