Our ST20 lathe recently had a board go out. It has been replaced, but unfortunately we didnt have a back up of the settings and im struggling to get the Bar feeder working again. It is a Servo Bar 300. When i go to the current commands page where the system variables are to be set for the bar feeder, i am not able to edit any of the values. i type in the numbers i want and hit write, and nothing happens. Ive searched thru the settings to see if something needs to be turned on but i have been unable to find anything. The lathe has the classic control. Has anyone experienced this that could help me figure out what is causing this?