A VFD reports a low-volts fault when the drive's dc link voltage drops below 62% of the nominal level for the high setting (480 Vac) and 50% of nominal for the low setting (400 Vac). The +10% and -15% ...

Motors account for at least half of the energy consumed in the U.S. Selecting the right control method for an application lets the motor run most efficiently while maximizing torque and overall ...

More and more often, variable frequency drives (VFDs) are used for control of fans and compressors in HVACR systems. The benefits are well documented and industry acceptance is such that most electric ...

Alpha Wire is now carrying inventory on all sizes of Variable Frequency Drive (VFD) cable – from 4/0 to 16 AWG – in an effort to better serve growing demand. Included is Alpha’s Series V line of VFD ...