Operators who want to minimize the scrap caused by an Auto Crop have been frustrated.

In order to prevent small pieces from jamming up inside of the roll-former the largest of parameters like Auto Crop Length, Scrap Length and Minimum Part are used to determine the shortest allowable length of the Auto Crop part. The logic behind this is that we have no way of knowing if the operator is going to halt the line to retrieve parts short enough that could cause damage in the roll-former.

Another reason to limit the smallest size of the Auto Crop Piece is that it takes a minimum distance for the material to feed in order for the die to be able to accelerate and cut the scrap piece.

Operators, in an attempt to cutoff just a sliver of material, have backed up the line after requesting an Auto Crop. Backing up the line gives the controller more distance to accelerate up to cut a shorter part. However, for the above safety reason, the controller would still wait and produce the full Auto Crop Length part.

With the addition of the Halt After Auto Crop setup parameter we now know if the line is going to halt after the auto crop. This lets the controller know that the operator will be removing any short pieces that may damage the roll-former. When set to YES, if the operator backs the line up in an attempt to give the controller the opportunity to cut a shorter piece, the controller will now comply.