I have a Kone Kmc831 monospace with a MX-10 machine with a V3F25 drive. I performed an unintended movement test at the bottom floor to test the emergency brake, upon returning the car to normal the car came to the top floor and opened the doors. The car now struggles to move in the down direction and faults out with a 108 fault. I can barely get the car to run down on inspection, it has a lot of vibration. I was able to eliminate anything mechanical, the safeties are not dragging, the rails are lubricated and both of the brakes are picking. I swapped the tach out with another car, checked the drive parameters and compared them to another drive with the same specs, the paramaters were basically the same. I checked the contactors also, is there anything else that I am missing or should be checking?
