Need Help!- Fadal 5020A RS232 and memory

[tc26]

We have a Fadal 5020A CNC88HS. I load programs into the control through RS232. The programs load ok. They show up in the program directory. I can run them all day. After I power the machine down and power up the machine, a newly loaded program might be in the control it might not be. I always use the TA,1 command when I load. I have tried TA,1,2,1 and it makes no difference. Yesterday I loaded 8 programs into the control and ran graphics on all of them. Today none of them was still in memory. Currently there is one program in memory.
There are many old program numbers in the directory (the programs have been deleted). I never figured thjat out either. If a program has been deleted, why is the number still in the directory?

[ciromedina]

I have a Ikegai FX25 fanuc 5 control and I have problem with tr Zaxis I do not Know if The Encoder or the mother board is bad What Can I do?

[alex gitzel]

sounds like you have a corrupted memory,you should do a zero memory (in the manual).if you dont have it pm me your email an i will send it.

[tc26]

Originally Posted by alex gitzel sounds like you have a corrupted memory,you should do a zero memory (in the manual).if you dont have it pm me your email an i will send it.

Is your reply to my fadal problem, or the other guy who posted here?

[Neal]

Ciromedina--
On your FX25 check the thrust plate on the right end of the Z axis ballscrew. They have an issue of warping over time and that adds excess backlash.
Remove the plate and set it up in a four jaw chuck in a manual lathe. Indicate it in to run true radially and left to right from the operators view point on the inside surface. Take a skin cut to flatten the surface that contacts the bearing block.
Reinstall the plate and your backlash should be back to normal barring any bearing excess wear.

Neal

[alex gitzel]

sorry, the corrupt memory is for TC26