What kind of data are you looking for? By service data do you mean maintenance information?
The small drives have little maintenance to do. Maybe clean dust out of blower and heat sink and that is about it.
Installation and setup instructions are provided, as well as available on their website.
Now if you don't understand some terminology or methods able to be used their information is not going to explain very much of that and you may need to find other sources to learn that information from. Example they do not describe all the fundementals of a PID control or 4-20 mA control, so you better have some understanding of what those are before diving into those types of control methods.