... 15days 3)CE,ISO9001:2000 Approved 4)MOQ:1pc single phase frequency converter 50hz 60hzALPHA 5000 series magnetic flux ... high speed CPU special for motor control 5. Simple PLC multi-step control function6. Built-in PID to realize ... machine, Metal, Glass, Packaging, Plastic machining, Petrochemical, Chemical fiber, Paper & printing, Textile printing ALPHA 5000 single phase frequency converter 50hz 60hz