Need Help!- alarm on mazak

[chipsahoy]

Im looking at purchasing a 1988 Mazatrol Cam T-2 CNC Control, 8 Station Turret, Tailstock, 8" Power Chuck

There is an alarm code showing which is defined as the following: # 9, “No feedback signal is returned from the X-Axial resolver in response to a NC unit command

Is this a bad alarm, or something simple .

Also can one get parts for these early machines???

Thanks Chips

[chipsahoy]

QT 15 cnc lathe sorry forgot to mention the type..

[Rokkin]

This seems like a relatively simple alarm and pretty straight forward.
Could be the following:

1) Bad resolver
2) Bad feedback cable
3) Bad feedback card (FX06). Maybe just an adjustment on this card. F/B signal could be present, but low.

I don't suspect the servo drive since feedback goes directly to the CNC.

[chipsahoy]

Also can one get parts for these early machines???

[Al_The_Man]

You can get them from Mitsubishi in Chicago.
Although the X & Z are different resolutions, you can swap them over just to check, or if you identify the feedback cables on the processor board, you can swap them to see if the fault follows the plug.
Make sure you get the right part number off the unit, the Mazak parts list sometimes shows the wrong resolution part.
Al.