I creade a script to start converting a document from SharePoint (the document must exist and be in one of the supported formats).
The script will create a new conversion job for the WordAutomationService and start the corresponding TimerJob (
Word Automation Services Timer Job). It will wait for the conversion to finish and output the results (inclunding errors).
Generally, if the WordAutomationService is not working as intended I consult the Troubleshooting Guideline.
(Remark: All links given refer to SharePoint 2010 - but all are still valid: WordAutomationService has not been changed (much).)