PF Softstarters

The PF Softstarter Controller provides intelligence, unmatched performance, flexibility, and diagnostics in a modular compact design for controlling either a standard squirrel-cage induction motor or a star-delta motor. PF models are available in 12 current models from 5...480A, 0.5...400HP @460VAC (900HP Y-D). Seven standard, and two optional starting modes of operation are available within a single controller. The PF Controller offers a built-in overload relay, internal bypass contactor and a microprocessor based controller that provides precise starting and deceleration of a three phase motor. The PF Controller is available in three controlling models which are the PFS, PFB and PFD. The PFS model includes eight standard starting & stopping functions. The PFB Pump Control option which is designed with a special algorithm to prevent "Water Hammering" and/or reducing fluid surges. The PFD Braking option provides motor braking for applications which require the motor to stop quickly. The strength of the braking current is adjustable from 0…400% of full load current.