Frequency inverter; AC motor drive. Variable speed control Complete Range 220v 0.4-45kw/400v 0.75-450kw Comprehensive range from 0.5hp-600hp High technology of PIM module 150% High starting torque at 1HZ Carrier Frequency adjustable to 16HZ Bulit-in PID control Bulit-in simple PLC fuction Bulit-in RS-232/485 communication interface Low noise operation Accel./Decel.Time(0.1-6500 Sec)adjustable