20209 - EXTERNAL CONTACTOR OPEN

Hi! As soon as I activate the motors I receive this error. What I've checked is the A21 Panel Board and everithis is fine for me. All the LEDs are ON. No external contactor is installed and above all where is this contactor supposed to be wired? It seems an internal error... maybe in one of the board but I do not know ABB enought. Some ideas?
The controller is an IRC5 M2004 Drive system 3G3T

Importing the backup into Robotstudio I found that there is a signal that could be related to this matter. The signal is "iVsys_MotorOFF". But I didn't find where this system signal is managed...