Features: 1Three control modes of V/F / vector / constant torsion can be switched for precise control. 2Complete control port, can work with PLC and sensor for various automation equipment. 3Built?in PID controller for applications that require constant voltage, constant temperature, constant tension open loop control and closed loop control. 4The inverter has textile frequency swing function, can be applied to textile machinery. 5Built?in synchronous control function. 6Zero speed brake function for truck, crane lifting and other occasion. 7Soft start function to protect equipment and power system. 8High-frequency control function for high-speed spindle application such as textile engraving machines. 9Protection functions: Overvoltage, Undervoltage, Current Limiting, Overcurrent, Overload, Electronic Thermal Relay, Click Overheat, Overvoltage Stall, Data Protection, Low Frequency Warning. Package included: 1 x Inverter1 x Manual