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% ...
The Slimlineâ„¢ variable-frequency drive (VFD) bypass assembly is the smallest "true" electrical bypass assembly available in the HVAC industry today, claims the manufacturer. The VFD bypass assembly ...