The settings for Word Automation Services are not within the recommended limits (SharePoint Server)
APPLIES TO: 
2013 2016 2019 Subscription Edition 
SharePoint in Microsoft 365
Rule Name: The settings for Word Automation Services are not within the recommended limits.
Summary: The throughput of Word Automation Services is limited by system resources on the application server. If the values for conversion processes and conversion throughput are set too high, the overall health of the application server can degrade, and other services on the computer can be affected. Additionally, Word Automation Services can experience decreased throughput and more conversion failures.
Cause: The settings for Word Automation Services are incorrect.
Resolution: Change the settings for Word Automation Services.
Verify that the user account that is performing this procedure is a member of the Farm Administrators group.
On the SharePoint Central Administration website, in the Application Management section, click Manage service applications.
On the Manage Service Applications page, in the list of service applications, click Word Automation Services.
In the Conversion Processes section, type a value that ranges from 1 to 1000 in the Conversion processes text box. The default conversion processes is set at 1.
In the Conversion Throughput section, type a value that ranges from 1 to 59 in the Frequency with which to start conversions (minutes) text box, and a value that ranges from 1 to 1000 in the Number of conversions to start (per conversion process) text box, and then click OK. The default conversion throughput is set at 15.