Solver message 304499
Message text
** ERROR 304499 ** Valve gate variable speed controller is assigned to isolated hot beam element (XXX). This is an invalid setup as both ends of the hot gate beam are connected to a cold beam or tetrahedral elements.
Explanation
The variable speed valve gate controller is correctly assigned to a hot gate beam element. However, the upstream channel must also be modeled using hot beams at least as far as the pin stroke length. This is not the case in this model.
Resolution
Correct the modeling error and rerun the analysis.