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Variable Frequency Drive (VFD / AC Drive / Servo) repair should start with checking the right connection of electric motor connections and drive terminal connections. Drive output which is Motor and drive input that is incoming power connections can be missed, installed loosely or wired...

The three key tenets of maintaining variable frequency drives—keeping them clean, dry, and with tight connections—are relatively simple. However, owners and facility managers need to implement regular preventative maintenance and inspection processes to make sure each requirement is met. 1.Keeping VFDs Clean : Most VFDs have side vents to allow...