Quote Originally Posted by cnc2149 View Post
The 414 alarm is like a Check Engine light in a car. This fault can be due to any of the reasons the other posters mentioned plus many more. You can go to DGN 200 and 201 on the DGNOS page (off of the SYSTEM hard key) and record the bit pattern for the Y axis when the fault is present. This will give us an idea of which way to go. The definitions of these bits is contained in the 16/18-i CNC Maint manual, if you have it. If not, let us know what you see and we can provide guidance.
Good analogy !