SCN 4510 fixed issues with reverse command value disturbances on Closed Loop Die Accelerators when the Lag Compensation was enabled and disabled on the transitions between the Die Extend and the Die Return portions of a Die Cycle. The ON and OFF transitions of Lag Compensation were delayed until a point in the cycle where any jump in command would be in the same direction as the slope of the command signal.

This change was broke the Selective Closed Loop operation, preventing reverse moves.

SCN 4510 was heavily tested on a Closed Loop Die Accelerator. To fix the Selective Closed Loop controllers the code involved in SCN 4510 is now disabled unless the loop is controlling a Closed Loop Die Accelerator.