Inverter Features1.Multiple password protection mode 2.Remote control operation keypad, convenient for remote control. 3.V/F curve &multi-inflection point setting, flexible configuration . 4.Keyboard parameter copy function . easy to set the parameters for multi-inverters . 5.Wide industry application . to expand special function according to different industries. 6.Multiple hardware and software protection and optimized hardware for anti-interference technology. 7.Multi-step speed and wobble frequency running (external terminal 15 steps speed control). 8.Unique adaptive control technology . Auto current limiting and voltage limiting and under-voltage restrain . 9.Optimized external installation and internal structure and independent air flue design , fully enclosed electrical space design. 10.Output automatic voltage regulation function .(AVR),automatically adjust the output pulse width . to eliminate the influence of the grid change on load . 11.Built-in PID regulation function to facilitate the realization of closed loop control of the temperature ,pressure and flow . and reduce the cost of the control system . 12.Standard MODBUS communication protocol . easy to achieve the communication between PLC , IPC and other industrial equipments .