Tag Archive: PLC processor
Staff Writer May 24, 2016
THE MYSTERY A VFD swap caused an oven’s burner to stop lighting. Control Systems Inspector traced the wiring and found something unexpected. One of ACES’ clients called with an oven that suddenly wouldn’t light. This is a mission-critical industrial oven…
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Staff Writer November 19, 2015
THE MYSTERY ACES routinely maintains a legacy oven at an aircraft plant that is used to cure composite parts for long periods at relatively low temperatures. Recently the customer had been having issues with identifying serial numbers for aircraft parts,…
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Staff Writer October 24, 2014
THE MYSTERY One of ACES’ customers manufactures drums and containers for industrial uses. They called us due to an issue with their helium tester, a machine which injects the gas into newly manufactured barrels, seals them and raises them into…
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Staff Writer May 3, 2013
THE MYSTERY There was a power outage at a municipal waste water collection system, which left a lift station dead in the water. The station wouldn’t run on generator power, and once regular power resumed the station wouldn’t come to…
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Staff January 25, 2013
THE MYSTERY A customer called ACES to the scene of a drop bottom furnace, which was used to fabricate aircraft detail parts and components. Like all drop bottom furnaces this one was equipped with a parts basket that was lowered…
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Staff July 19, 2012
THE MYSTERY One of ACES’ customers closed their factory in Utah and moved all of the equipment to Kansas in order to set up a line manufacturing synthetic twine. The system included a PLC processor and six DC variable speed…
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Staff July 16, 2010
THE MYSTERY The temperature controller of a 20-year-old vacuum furnace had gone completely dark. This furnace was a critical piece of equipment for the owner, a local aircraft plant. The original manufacturer of the controller no longer supported it —…
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Staff October 21, 2009
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…
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Staff Writer October 8, 2009
THE MYSTERY A municipal water plant was stuck with an unresponsive system of 28 PLCs and an AWOL dealer. The case of the obsolete PLCs. Every vendor the client talked to insisted a whole new system was the only way…
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