THE MYSTERY A company that manufactures polymers and synthetic fibers had an old Control Techniques VFD that needed replacing due to environmental conditions.THE CLUES When the ACES Control Systems Investigator (CSI) arrived on the scene, he discovered that the...
THE MYSTERY A beef production facility had a industrial deep freeze, 20 shelves high, complete with an elevator that delivered boxed beef to each shelf. The pusher that automatically dispensed the boxes onto the shelves for freezing had become stuck in the out...
THE MYSTERY The ACES CSI (Control System Investigator) was just finishing up a service call at a wastewater plant. He was testing the work he’d done on a controller, which runs a coagulation unit removing heavy metals from water. This is a high-current, low-voltage…
THE MYSTERY A corrections facility in the area called ACES because one of their industrial washing machines (100 lb. capacity) was down. They called an electrician in to look at it, but he was unable to find the problem. THE CLUES ACES sent a Control Scene…
THE MYSTERY A local box manufacturer called ACES in a panic because the machine which produced the starch that glued their corrugated cardboard had suddenly quit working, resulting in a sticky mess. The factory used glue to turn giant rolls of paper into corrugated…
THE MYSTERY A large aerospace company in Kansas owned a large industrial generator that wasn’t generating; it was subsequently sold to two different companies — neither of which could make it work —so the generator was condemned. THE CLUES The first thing the ACES…
THE MYSTERY A glass company who screen prints logos on customer glass called ACES because the mechanism that advances the glass through the ink dryer wasn’t working.THE CLUES An electrician had already replaced the variable frequency drives, with no effect, so the...
THE MYSTERY A local chip maker called because their tortilla press would run fine for awhile, but then during the middle of a cycle the press would come down and not return to the up position. Cycling power to the machine it would resume operation sometimes for hours...
