User Manual of A90 Series Inverter F06.21=2: automatic adjustment In the automatic adjustment, the optimal flux weakening current will be selected automatically, but it may affect the dynamic performance of the system or become unstable. The speed of flux weakening current adjustment can be changed by setting the proportional gain (F06.24) and integral time (F06.25). However, fast adjustment of the flux weakening current adjustment may cause instability. This does not need to be changed manually under normal circumstances. This parameter is used to determine the amplitude of the high-frequency current injected during the initial position identification.
The larger this value, the higher the “squeak” sound will be.
179 Function Default Function code name Parameter description Unit Attribute code setting F06.27 Self-learning gain at initial position 0 - 200 % 100 ● Function Function code Default Parameter description Unit Attribute code name setting F06.28 Frequency of low frequency band of injection current 0.00-100.00 (100.00 is the rated frequency of the motor) % 10.00 ● F06.29 Injection current of low frequency band 0.0-60.0 (100.0 is the rated current of the motor) % 40.0 ● F06.30 Regulator gain of low frequency band of injection current 0.00 - 10.00 0.50 ● F06.31 Regulator integral time of low frequency band of injection current 0.00 - 300.00 ms 10.00 ● F06.32 Frequency of high frequency band of injection current 0.00-100.00 (100.00 is the rated frequency of the motor) % 20.00 ● F06.33 Injection current of high frequency band 0.0-30.0 (100.0 is the rated current of the motor) % 8.0 ● F06.34 Regulator gain of 0.00 - 10.00 0.50 ●