Changes made for Pathfinder 5226 controllers.

The Jorns Twinmatic double folding machine type has 2 types of grippers used to hold onto the material during production. One is a standard sheet gripper that is used for most of the production. The other looks like a "hippo head" or a "cusped hand" which is mainly used to grip over a flange. Usually this gripper is tucked behind the sheet gripper in terms of what the material will be backstopped against. When needed this alternate gripper has separate outputs to extend the gripper past the sheet gripper. Once extended the alternate gripper can be opened and closed for production. The main safety concern is that it shouldn't extend out when the backgauge is a certain distance from the clamp which could cause a collision.

The solution was to implement a Backgauge Minimum Position with Alternate Gripper Extended. This parameter will throw an error if the backgauge is already within this zone and the user is trying to extend the alternate gripper. In automatic the gripper will be retracted before moving the backgauge into and out of this zone.