About the product
Variable Frequency Drive (VFD) can be used to control the speed of three-phase induction motor. A variable frequency drive is a system equipped for controlling the rotational speed of an alternating current (AC) electric motor by controlling the frequency of the electrical power supplied to the motor.
Single phase VFD drive normally is used in 200V AC to 240V AC in low power applications, like small pumps. The AC motor's input need to be three phase as all of the drives are three phase output. In our factory, the 1 phase AC drives, from 0.4kW to 2.2kW.
The voltage/frequency curve is user configurable too, which is very useful for your kind of application where you are operating outside the normal frequency range of the motor. Good VFDs come with a display that can be set to show the motor speed (or any number of other parameters). If I were doing this, I would use a 1HP 208V two-pole motor and a 1HP VFD with a 240V input.
One feature that is present in the Mitsubishi VFD and not present in cheaper units that I have installed is a braking resistor. These are used in applications where you want to use the motor as a brake to stop the machine or control the speed of a descending load. The bigger the resistor, the quicker the stop can be programmed in. You can eliminate coasting, even under significant load, when using a resistor.
Single phase VFD drive normally is used in 200V AC to 240V AC in low power applications, like small pumps. The AC motor's input need to be three phase as all of the drives are three phase output. In our factory, the 1 phase AC drives, from 0.4kW to 2.2kW.
The voltage/frequency curve is user configurable too, which is very useful for your kind of application where you are operating outside the normal frequency range of the motor. Good VFDs come with a display that can be set to show the motor speed (or any number of other parameters). If I were doing this, I would use a 1HP 208V two-pole motor and a 1HP VFD with a 240V input.
One feature that is present in the Mitsubishi VFD and not present in cheaper units that I have installed is a braking resistor. These are used in applications where you want to use the motor as a brake to stop the machine or control the speed of a descending load. The bigger the resistor, the quicker the stop can be programmed in. You can eliminate coasting, even under significant load, when using a resistor.
Price
USD 2500
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