2-92 Fan Curve
Fan Curve When torque performance (see page 2-205) is set to Fan/Pump, the
relationship between frequency and voltage is shown in the following
figure. The fan/pump curve generates voltage that is a function of the stator
frequency squared up to the motor nameplate frequency. Above base
frequency voltage is a linear function of frequency. At low speed the fan
curve can be offset by the run boost parameter to provide extra starting
torque if needed. No extra parameters are needed for fan/pump curve.
The pattern matches the speed vs. load characteristics of a centrifugal fan or
pump and optimizes the drive output to those characteristics.
Fan See Fan Curve above.
Maximum Voltage
Maximum
Frequency
Base Voltage
(Nameplate)
Base Frequency
(Nameplate)
Run Boost
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