On-site troubleshooting of eddy current press drives

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Publication date:

February 2011

Author:

Mike Dupuis, Monelco, Ltd.

Our service center location in Southern Ontario, Canada, is considered ground zero for automotive stampings. One of the more common prime movers employed on stamping presses in our area is the dependable eddy current drive. Most units our technicians encounter are in the 50 hp plus category, which makes for a large piece of equipment.

Removal of these units from a stamping press is no small task, so taking steps to more positively identify a problem with the actual drive unit as opposed to the controller or load is highly advisable. Our company provides on-site service and troubleshooting to our customers, which allows us to inspect the application firsthand before removal of the unit is performed.

Our technicians have a few basic on-site checks they perform to help identify the cause of the problem. The tests they employ are typically done on the direct coupled eddy current drives, as opposed to the larger stand alone, belt-driven constant energy system (CES) drives. The following troubleshooting procedures are basic and fairly quick, and could help to reduce the possibility of unnecessary removal of a large eddy current drive.

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