PI7550 variable speed drive, adjustable frequency drive, VSD, AFD, VVVF drive is with novel structure design.

Complete upgrade of the software.
Optimized production technique
PI7550 adjustable frequency drive, variable speed drive is  with mature test equipment.

This series of frequency inverter, VSD supplies the more comprehensive motor control solution to you. It employs the advanced technology of Pulse Width Modulation (PWM) control and vector control, high performance power module and DSP control.

PI7550 variable speed drive (VSD), frequency inverters, frequency converter is with internal current loop to realize high precision of close loop control and reach the stability and precision of current and frequency. Completely new manufacture technique and test equipment ensures the better stability and reliability of the product.

Applications for this series variable frequency drive, adjustable speed drive (ASD):
mechanics, electronics, metallurgy, mining, petrochemical, transportation, building materials, municipal, metal processing, textile, printing and dyeing, paper making, Injection machine, central air conditioning, numerical control machine tool, air-compressor, fan and pump, blower, air conditioner for large buildings; wastewater treatment system; water supply system for large buildings; public water supply system and other industries and fields.