On the AC variable frequency speed-control in granulating machine
In order to solve the shortcomings of the original commutator motor speed, we decided to adopt the advanced frequency conversion speed regulator. This not only improves the stability, but also save power consumption, reducing production costs. Selection ABB electrical company production of ACS604 series frequency device, its performance features is used directly turned moment control (DTC) technology, adjustable speed precision high and speed stability good, can provides can control and smooth of maximum up moving turned moment, can reached 200% of rated turned moment, has motor various fault protection function, can programming control entered output interface, control convenient flexible; frequency device for long-term work load, reliability high. Characteristics of technology and equipment of rubber extruder, the selected converter to be able to meet the requirements, dragging motors with squirrel-cage motors.