Problems with SmarTac configuration

I recently adquired the SmarTac module (software version) for a ABB robot IRB1660 with a Lincoln electric Powerwave R450. I succesfully installed the license in the robot but i realized i needed to configure the standard signals. I had no problem with the output signals because I created new ones. But I can't find the specific detection input. The detection input should come from the power source or can I create an input in the robot and put it as the detection input? being honest the last option doesn't seem logic for me. But it's my first time doing the configuration by myself.