many drive choices are available from a large number of venders around you. Several decisions have to be made when it comes to choosing a variable frequency drive. Variable frequency drive takes the alternate current and converts it to direct current which improves the motor. in varying the frequency to drive the output motor, the speed control portion of the drive uses the direct current voltage to create the direct current pulses. The speed of the motor matters depending upon the number of the poles the motor was designed to operate with. so as to help you come to a good choice of the variable frequency drive, below are some factors outlined for you.
One of the many factors to consider when making a choice on matter concerning a good variable frequency drive is the demands of the loads or processes in your planned system. this is due to some loads being hard to start. an oversized unit is needed to cover the higher current demands of the hardtop start loads due to the limited over current capacity of the variable frequency drive.
The second factor to consider when choosing a good variable frequency drive is the number of motors the drive will control. If the motors to be controlled are more than one the away they start whether sequentially or simultaneously determines the selection of the variable frequency drive. the loads under the worst operating conditions also help to determine the kind of variable frequency drive to select which is concluded after calculating the total peak of currents in the motor.
Requirement of a quick start or emergency stop of the load is the other factor that you need to consider when selecting a variable frequency drive. high currents will be required of the variable frequency drive if that will be the case and also an oversized one too. To improve the variable frequency drive, to oversize the drive may be necessary.
The fourth factor to be put into consideration when choosing a variable frequency drive is the range of the motor sizes your process or processes require the variable frequency drive to handle. the variation of performance between the small and the improvement of the large motor will be needed on the variable frequency drive.
The need for equipment or drive features that will ensure the continuity of the procession is another factor to put into consideration when choosing a variable frequency drive. You may have a drive that trips instantly in an overcurrent condition which is a thing that you should be aware of. The above factors can be of great help if put into consideration before a selection of the variable frequency drive.