N500 INSTRUCTION MANUAL Explanation of Function FWD REV Control circuit terminal ) External input terminnal (1) Base frequency and motor voltage Base frequency Base frequency Base frequency Base frequency (A03) (A03) (A03) (A03) • On selection of base frequency and motor voltage, set the output of the inverter (frequency voltage) to the motor rating.
Output voltage(V) Output voltage (V) (%) Motor voltage selection (%) A03=A04 Motor voltage selection (%) Constant torque (V/f) Output frequency (Hz) Output frequency (Hz) Base frequency (A03) Maximum frequency (A04) Base frequency = Maximum frequency • The base frequency is the nominal frequency of the motor, this value can be found on the nameplate of a motor. When a motor has a base frequency lower than 50Hz, there is risk of damage to the motor. • If a motor has a base frequency higher than 60Hz, it is considered to be a special motor. In this situation, it is important to make sure the maximum output current of the inverter is higher than the FLC of the motor.
• It is important to match the Motor Voltage (A082) to this nominal value or there is risk of damage to the motor . 2-19 P24 CM1 PLC DI8 DI7 DI6 DI5 DI4 DI3 DI2 DI1 SW2 SW1 (Reverse run) (Foward Code Function code Setting range Description Initial data A03 Base F Set _ Base frequency setting 30.00~A04 Unit : Hz [A03] Base F Set _ 060.00Hz A54 AVR V Sel _ Motor voltage 0~5 Setting value of 0~5 Setting Voltage Setting Voltage 0 380V 3 440V 1 400V 4 460V 2 415V 5 480V [A54] AVR V Sel _ 440V 3 Setting Voltage Setting Voltage 0 380V 3 440V 1 400V 4 460V 2 415V 5 480V