Conversation server time out

When I run a method via conversation server, and I get the following error.

I have conversation server running and if it time-out even if i have timeout set to 60 mins on conversation rule it times out in 40 second why is that?

Aras.ConversionFramework.Exceptions.ItemErrorException: System.Net.WebException: The operation has timed out.
at Aras.ConversionFramework.Models.DAL.ItemContext.AssertItem(Item item) in C:\Builds\CI\36913\Innovator.git\CompilableCode\ConversionFramework\ConversionManager\Models\DAL\ItemContext.cs:line 92
at Aras.ConversionFramework.Models.ConversionTaskEventHandler.Execute(ConversionTask task) in C:\Builds\CI\36913\Innovator.git\CompilableCode\ConversionFramework\ConversionManager\Models\ConversionTaskEventHandler.cs:line 245
at Aras.ConversionFramework.Models.ConversionTask.ExecuteEventHandlers(ConversionTaskEventType eventType) in C:\Builds\CI\36913\Innovator.git\CompilableCode\ConversionFramework\ConversionManager\Models\ConversionTask.cs:line 321