Characteristic Output Frequency 0.5~400.0Hz PWN frequency 1.5~10KHz 16-step speed function control setting PWN frequency adjustable 1.5~15KHz 15 pattern and any V/F pattern Speed command PID loop for system application Provide variety encoder card functions External analog setting 0~10V and 4~20mA Light loading 120% x 1 min and start torque 150% 16-step external input setting, frequency increase/decrease (UP/DOWN) function Built-in standard RS422/485 communication port, MODBUS RTU protocol V/F open/close loop control, Vector control, Vector close loop control, Torque control Motor Parameter autotuning, automatic voltage compensation and slip compensation