PI550 series inverter is a high-performance current vector inverter developed by Powtran technology based on PI500 series.The product adopts DSP as the core control unit,unique vector control algorithm,and true current vector control that strengthen product operation reliability environmental adaptability,case of use and maintainability.The communication function is more perfect and the performance is greatly improved.Products are widely used in metallurgy,petroleum,chemical,steel,textile,electricity,building materials,coal,water supply,photovoltaic,cable,and other industries of various automation equipment drive and control.