No pagenation on a new Component

[cccdin]

I 'm making a new component, but when i get the list in administrator mode, the pagenation is wrong. the param $limit is 0. When i use another component the pagenation is ok. Now if a return on my component the param $limit has take the last value from the prev used component. What is the wrong?

[datahell]

Better see how other components do pagination. Take them as examples for your own one.