Pause, Not ready and Two axes alarm
The CNC lathe machine was stopped about a week, now turn on the machine power, there are Pause, Not ready and Two axes alarm displayed on the CNC controller screen, and all CNC programs were gone.
Open the electric cabinet and check the two AC servo drivers, there are no any alarm, remove the alarms the CNC controller can work, but the same problem happened if restart the power. (From http://www.CNCmakers.com)
There are several possibilities:
1- CNC controller storage broken.
2- Backup battery was dead
3- CPU of the CNC controller was broken.
In this case we changed the CPU board and the problem solved.