Like the title says, on my Fanuc 16 machine (Robodrill T10 Alpha) there is some kind of problem with spindle amplifier and it is just blinking double dashes ( - - ) saying it is not ready, nor operative.

I've tried switching modules with another machine with same module and it still does the same. I've even changed cable which connects the module with mainboard. Nothing.

What could be the problem? Other modules are working (00 state).