Hi everyone,

I've got a Mazak QT-20 with a Mazatrol T-1 control. Last year I had the spindle drive die and I replaced it with a brand new one from automation direct. It was tricky but it has worked great ever since. Now I have a new problem. "Alarm #26 F Servo Amp Z". When I turn on the machine the Z-axis moves in the positive direction about 6" suddenly and the machine alarms and e-stops. The Z amplifier is a Mitsubishi Meldas TRA41A and it has a few LEDs that are red that are different from the X amplifier.

Is it possible to retrofit the amplifier like I did with the spindle drive or do I need to find a used replacement? Would it be worth retrofitting the entire control with a new system? The machine is accurate and in good shape otherwise. Would be nice to be able to program with G-code and CAM software but it depends on the cost of the retrofit.

Any ideas are appreciated.