Can someone shed some light on the theory of operation for ac motors. I had a customer who had a toyota with twin drive ac motor controllers, the sauer danfoss motion drives. One of the motors had a shorted winding and was sent away for repairs.

The motor was repaired and refit last week, but the problem now is that when in forward the motor goes backwards and when put in reverse the motor goes forward.

Can I change the power cables in order for it to work correctly? Or has the motor somehow been rebuilt incorrectly?

(The other motor still works correctly its just the motor that has been repaired.)