Hi Chad, loose cables on BAL slides can be caused by various things on both the models that they offer.
Generally speaking, it could be related to mis aligned, loose or bent brackets that are attached to the slide box, a motor that may have come loose, gear deflection on the motor transmission box, cables not on a pulley correctly, slack in the chain or just normal gear wear or even a jam bracket that may have come loose.
BAL has excellent support video’s out on their site on each of their slide products. There is also one on the adjustment process.