Hello All,

We have a cnc lathe with fanuc 15tf (14 crt) controller,

There are lots of same topic on this forum also check them, but mine is little different

After battery voltage down , all parameter etc data was lost, (we have all original data )

Our process ;

1-Open the controller while pressing 7 & 9 till see clear file,

2-After clear finish type 99 and enter 3 password

3-System laber generated shown on screen

4- Axis number then all option that we enter as hexadecimal

5- Then press 6 exit IPL but we found ram parity base 0 again,

We suspect Base o board defective and have another new one (working with different machine) we swap it but all process we made as above, but still same problem, which kind of problem could be , hardware or sotware, and whats wrong that i did ,

Thank you for valuable help