Solved. Yes , resolver motor poles was the cause.
My motor 1FK6081 has 3 poles while in external kinematic drive selected in WOV , motor was a 4 poles type.
Reconfigured E1 with MG_120_110_25_S0 that has 3 poles, setted the correct ratio RAT_MOT_Ax[7]= D107, N 1 and works fine now.