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I have ATV21 and the motor is not working in the reverse direction, Type of control is 2 wire, How to solve this problem ?

1-From the Drive menus ser parameter F311 : (Motor Rotation Direction Command) to 0 instead of 1
0 : Forward and Reverse operation permitted
1 : Reverse operation Prohibited

2-Set Switch SW4 to Source .

The attached file shows the parameters highlighted .
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