3131Chapter 6 Parameter IntroductionsNote:XX.XX YYYYYY N1~N2【D】ParameterNo.ParameterName RangeDefaultvalue6.1 Group A0A0.00 User password 00000~65535【00000】This function is used to prevent the irrelevant personnelfrom inquiring and changing the parameter as to protectthe safety of the VFD parameters.0000: No password protection.Set password:Input four digits as user password, and press ENTERkey for confirmation. After 5 minutes without any otheroperation,the password will be effective automatically.Change password:Press MENU key to enter into the password verificationstatus. Input correct password, and it enters parameterediting status. Select A0.00 (parameter A0.00 displayedas 00000).Input new password and press ENTER key forconfirmation. After 5 minutes without any otheroperation,the password will be effective automatically.Note:Please safekeeping the user password.A0.01 Control mode 0~2【2】0: Vector control without PG (Open loop vector control)It is a vector control mode without speed sensorfeedback.It is applicable to most applications.1: Vector control with PG (Closed loop vector control)It is a vector control with speed sensor feedback.It isapplicable to applications with high accuracyrequirement of speed control precision,torque controland simple servo control.2:V/F controlIt is used to make the voltage and frequency in aconstant ratio. It is applicable to most application,especially for the application of one drive to drivemultiple motors.A0.02 Main referencefrequency selector 0~4【0】0: Digital setting.The VFD will regard the value in A0.03 as the initialreference frequency when power on.It can be adjusted via ▲ and ▼ key on the panel(panelcontrol),or adjusted via setting the function of terminalto be UP/DOWN function(set any two of Xi to be 13 and14, terminal control )X1~X7choose anytwo of them13 Frequency ramp up (UP)14 Frequency ramp down (DN)1: Set via AI1 terminal.The reference frequency is set by analog input viaterminal AI1 and the voltage range is -10V~10V. Therelationship between voltage and reference frequencycan be set in Group A3.2: Set via AI2 terminal.The reference frequency is set by analog input viaterminal AI2 and the voltage range is -10V~10V. Therelationship between voltage and reference frequencycan be set in Group A3.3: Set via AI3 terminal.The reference frequency is set by analog input viaterminal AI3 and the voltage range is -10V~10V. Therelationship between voltage and reference frequencycan be set in Group A3.4: Set via X7/DI terminal (PULSE).Set the reference frequency by the X7 terminal’sfrequency of pulse input .The relationship between pulsefrequency and reference frequency can be set in GroupA3.5: Reserved.