Go to MSU adjust, Motion Info, 3rd screen back,velocity information. This screen lets you compare the velocity command, the position encoder, and the velocity encoder. run the car on inspection and watch the screen. All 3 should be close to each other.Also check the Zero command parameter. If it is too long, car will hover at the floor when coming into a landing. Check load weighing, or unplug load weighing altogether and run the car.