A variable-frequency drive (VFD; also termed adjustable-frequency drive, “variable-voltage/variable-frequency (VVVF) drive”, variable speed drive, AC drive, micro drive or inverter drive) is a type of adjustable-speed drive used in electro-mechanical drive systems to control AC motor speed and torque by varying motor input frequency and voltage. The integration of a human machine interface (HMI) and programmable logic controller (PLC) provides a lean automation solution.
Lean manufacturing is a proven, powerful method to boost efficiencies in production processes. Similar concepts and practices that eliminate “waste”-unnecessary equipment and process steps-can be applied to the design, construction, and support of automation systems to enable increased productivity and reliability, yielding increased efficiency. Combining visualization and control means:
Faster machine design by providing an integrated development environment
Reduced machine construction costs by eliminating components and wiring
Reduced machine support cost and improved operation by centralizing remote access and administration
