... 3)CE,ISO9001:2000 Approved 4)MOQ:1pc,manufacturer.. Motor speed controlALPHA 5000 series magnetic flux vector control frequency ... unit4. Use 32 bit high speed CPU special for motor control 5. Simple PLC multi-step control function6. Built ... , Plastic machining, Petrochemical, Chemical fiber, Paper & printing, Textile printing Chinese inverter Motor speed control with CE certificate