On lines with Stopping press operations and Non-Stop Die accelerators, the Die Accelerator will position itself to do a stationary press hit on its target if there will also be a stopping operation on another press that halts its target within the available die stroke.

Prior to this change, the die would wait until it would normally accelerate and then move itself into position where the material is expected to stop. It would then be ready to fire its press(s) at the same time as the stopping press(s).

We encountered a machine that has pre-notches that the shear is supposed to fire inside of. By waiting until time to accelerate, the notch proceeded far enough through the die that the die would catch it and drag the material with it on its way to the expected stationary cut location. The die has roller guides that help feed the notch through the die in the forward direction but not the reverse. Positioning the die resulted in the die outrunning the notch.

To counteract this problem the software has been modified to position the die earlier. This is intended to prevent the notch from getting close enough that the notch gets in a position to catch. The die will begin positioning itself once enough material has passed to prevent the possibility of out running the material leading edge or the position of the prior target on the material.