** WARNING 312186 ** Steady state conditions have not been reached for the Transient from production start-up analysis. The analysis has reached the maximum number of cycles specified.
When you run the production start up analysis, the mold begins with a constant temperature and takes a number cycles before the actual mold temperature cycle settles down to steady state conditions. Once steady state conditions have been achieved, the temperature variation for any given cycle will be identical to both the previous and subsequent cycles. The rate at which steady state is achieved is dependent upon the mold, part materials etc.
In simple thermoplastic cycles, if this error occurs view the results over a number of cycles and see if anything is out of the ordinary. If it looks as though the solution is still converging increase the number of iterations. If the solution is diverging there could be a number of issues wrong, ranging from meshing to poor processing conditions.
The solver default setting allows the solution 100 cycles to reach steady state conditions. This may be insufficient for some processes that have thermocouple control. When there is thermocouple control and heaters in the mold it is rare that any two consecutive analyses will experience the same the mold temperatures, so the analyses will never converge. In this case, study the variation between consecutive analyses to check that the behavior is as expected, and matches what will be happening on the shop floor. The solution will never converge, so examine the results over a number of cycles.