Sounds like your CPU defaulted. I had a similar issue a few months ago. Do you have the parameter sheets for the controller? Do you have a load weighing board in the controller? What is menu 5 sub menu 1? That will show you load in the car, that will also cause problems if the reading is out of range. Try adjusting the load weigher and see if you can get the car to move so you can perform a hoistway setup. If you still can't get it to run check menu 1 sub menu 95? Try changing that and see if you can get the car to run. There's a lot of steps to get it back to normal operation if you have lost all parameters.