WSMModelData[] can not find my model

I have something like this in my notebook (SystemModeler is not running):

Needs["WSMLink"]
SetDirectory[NotebookDirectory[]]
(* "F:\\WMath\\DCmotor" *)

model = "DCmotor";
WSMModelData[model, "Diagram"]


During evaluation WSMLink::nomod: The class DCmotor was not found.` - !!!!!!

But when I run SystemModeler and only load my model everything is ok. That is not the case when I use models from SystemModeler examples. The question is: how to show Mathematica where my *.mo file is without launching SystemModeler?

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