User Manual of A90 Series Inverter The rotation direction of the motor can be changed by modifying this function code instead of motor wiring. This is equivalent to the change in the rotation direction of the motor by adjusting any two wires of the motor (U, V, W). 1 ． After the parameters are initialized, the rotation direction of the motor will return to its original status. 2 ． Be careful to conduct the aforesaid operation where it is forbidden to change the rotation direction of the motor after system debugging. 3 ． When the inverter is prohibited from reverse running (e.g. F00.21=1), this function is invalid. F00.21=0: reversing running is allowed.
The rotation direction of the motor is controlled by the setting of the F/R terminal or F00.20. F00.21=1: reverse running is prohibited. The motor can only work in one direction, and the F/R terminal and F00.20 are invalid. Select the forward/reverse status of the motor. If F00.22=0.00 is set, forward and reverse running is subject to smooth transition. If F00.22≠0 is set, when the speed drops to 0.00Hz during forward and reverse switching, the inverter will work at 0.00Hz within the duration of the forward and reverse dead zone (F00.22) and then in the opposite direction to the set frequency. See Fig. 7-5.
128 Function code Default Function code Parameter description Unit Attribute name setting F00.20 Running direction 0: consistent direction 1: opposite direction 0 ● Function code Default Function code Parameter description Unit Attribute name setting F00.21 Reverse control 0: Allow forward/reverse running 1: Prohibit reversing 0 ○ F00.22 Duration of forward and reverse dead zone 0.00~650.00 s 0.00 ●