Benshaw VFD-RSI-010-H2P-4C - The Benshaw H2P Series sets the new standard for variable frequency drives for pump and fans applications. It includes application software designed to perform many functions including advanced PID functions, multiple pump or multistage pump control, lead lag, simplex, multiplex, triplex with the capacity of multiplexing up to 8 drives. Cost saving result by reducing PLC’s and peripherals typically required to achieve these functions that are now integral to the drive... The results are reduced maintenance cost, better system control, and improved pump and pipe monitoring and protection. If you have one or multiple motors in a system that require constant pressure or flow, then this is the drive for you.