Interlocks protect during high-voltage drive tests
A
Schmersal UK product story
Edited by the Engineeringtalk editorial team
Jun 21, 2002
Test jigs at the Control Techniques test department are fitted with safety interlock switches on the outside to lock products in and protect operators during automated high-voltage test procedures.
Powys based Control Techniques is a world leader in the design, production and marketing of electronic drives for the control of electric motors.
The company's controllers and drives are used for a wide range of industrial equipment, including machines, conveyors, cranes, lifts and pumps.
Effective testing is the benchmark in improving product performance, reliability and safety and with the growth in modern automation technology, products can be tested in situations that simulate exactly their actual operating conditions.
The Control Techniques' test department houses a variety of custom-built jigs used for flash testing and finished product testing.
The jigs, constructed from polycarbonate and Delrin, are fitted with Schmersal AZM170 safety interlock switches on the outside to lock products in and protect operators during automated high-voltage test procedures.
Explains a Control Techniques spokesman: "The AZM170 switches are wired into the test jigs.
After input from the operator, the switches automatically lock and isolate the jigs before the test procedures are initiated".
He adds: "The Schmersal AZM170 switches were specified because they offered a combination of small physical size - the smallest we could find - and the ability to mount onto jigs that test product as small as 0.25kW".
Schmersal safety equipment is also used on other equipment in the company.
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