5226BB
4.2.13
8/20/2020

Changes made for Pathfinder 5226 controllers.

Some folding machines have a dedicated pressure switch instead of a transducer that gives feedback. The switch will turn on an output when it feels pressure has been reached on the machine. The 5226 has only ever gotten to a clamped state by using some kind of feedback(position and pressure). To utilize the pressure switch a new input would have to be added.

Clamp Pressure Reached input was created to use this pressure switch. The controller will now say the machine is clamped if the clamp is moving down and this input turns on.

Changes made for Pathfinder 5226 controllers.

On some double folder machines the backstop of the backgauge is adjustable to be able to take advantage of the grippers. The biggest advantage is that it can get the material closer to the zero point without having to change the position of the backgauge. This allows the user to get closer to the clamp with the material gripped, which means a different form of backstop(finger or the grippers closed for gauging) does not need to be used. To use these gripper backstops new I/O and logic had to be added and work in unison with Pathfinder to know when to use them.

Pathfinder now has a gripper backstop offset field in each operation step. To have the backstops work for that step the exact amount the backstop moves out compared to its zero point of the backgauge needs to be put into the field. The controller will also receive generic parameters that need to match this offset distance. If during operation the offset distance matches the generic parameter the controller will turn on the output associated with that backstop and adjust where the backgauge needs to move. That backstop will then be used for the entirety of that step and subsequent steps until the gripper backstop offset changes.

Changes made for Pathfinder 5226 controllers.

The Operator Mode has Changed error was created to let operators know that the machine has switched from one man mode to two man mode or vice versa. The problem with that is that it turned into more of a nuisance error instead of a safety acknowledgment. This is because this error is mainly thrown when someone turns the key switch and knows they are changing the man mode. This error really just needs to catch when the machine goes from two man to one man mode, but without a turn of the key switch. This means a failure has occurred and the machine is in an unsafe mode.

This error is now only thrown if the machine is using the legacy Two Man input where turning on the input puts the machine in two man mode. This is because a loss of input puts the machine in input one man mode which means the machine is less safe now. The loss of the input could be from a loose wire that the operator is unaware of and needs it to be known that the machine is less safe. If the machine is using the One Man input a loss of input would put the machine in two man mode and makes the machine safer. Therefore this error would not have to be thrown in this case.