[thecathaginian]

Hey All,

I have a SST-16 Swiss Lathe Machine with Fanuc O-TT. My sub-spindle suddenly stopped working and this alarm message appear : 522 OVER TRAVEL : +Z.
When I use JOG, It moves backward until it reaches the end. But when I try to move it forward, It moves for like 1/16th of an inch (1 mm) then the alarm message appear : 522 OVER TRAVEL : +Z
The parameters are the same. I have no idea what is happening.

[bravernoe]

It sounds like your SST-16 Swiss Lathe is having a limit switch issue or there's an obstruction causing the sub-spindle to think it's over-traveling.

[lshingleton]

Estop and P cancel the machine at power up and see if it goes away ------------For some reason its looking for home