My DS component.xml

gistfile1.xml

<scr:component xmlns:scr="http://www.osgi.org/xmlns/scr/v1.1.0" name="ModelFartSensorDriver">
   <implementation class="model.fartsensor.ModelFartSensor"/>
   <reference bind="setServerApi" cardinality="1..1" interface="ntnu.opcua.server.api.ServerApi" name="ServerApi" policy="static" unbind="unsetServerApi"/>
   <reference bind="setFartSensor" cardinality="1..1" interface="hardware.driver.api.HardwareAPI" name="HardwareAPI" policy="static" target="(hardware=fartsensor)" unbind="unsetFartSensor"/>
   <service>
      <provide interface="org.osgi.service.event.EventHandler"/>
   </service>
   <property name="event.topics" value="ntnu/opcua/server/STARTED"/>
   <reference bind="setNameSpaceController" cardinality="1..1" interface="ntnu.opcua.namespace.controller.api.NameSpaceControllerAPI" name="NameSpaceControllerAPI" policy="static" unbind="unsetNameSpaceController"/> 
</scr:component>