I also tried to join 2 cables to see if there is any difference (because the main cable, receiver-motor is joined). The old motor was working OK...
New motor doing: X SAT -> DVB-T -> Y SAT it doesn't move. Doing X SAT -> DVB-T -> X SAT and than Y SAT it's OK.
(9°E -> DVB-T -> 30°W it doesn't move. Doing 9°E -> DVB-T -> 9°E and than 30°W or any other position, it's OK)