Electricity: motive power systems – Positional servo systems – With protective or reliability increasing features
Reexamination Certificate
2007-08-07
2007-08-07
Philogene, Haissa (Department: 2821)
Electricity: motive power systems
Positional servo systems
With protective or reliability increasing features
C318S565000, C318S801000, C363S050000, C361S023000, C700S021000
Reexamination Certificate
active
11134174
ABSTRACT:
A drive for delivering a high-power signal to a load includes a power circuit and a drive circuit. The power circuit is operable to provide a high power signal to the load in response to a control signal. The control circuit is operable to generate the control signal for activating the power circuit. The control circuit includes an application processor and a safety circuit. The application processor is operable to generate the control signal during a normal mode of operation. The safety circuit is operable to inhibit the generation of the control signal during a safe-off mode of operation. The safety circuit includes a safety processor independent from the application processor and operable to monitor the safety circuit.
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R.Kenner, G.Kobs, R.Weber, Digital Control of Industrial Servo Drives for Machine Tools, 8th Eutopean Conference on Power Electronics and Applications (EPE), Lausanne, 1999, Proceedings, CD-ROm EPE '99, paper No. 882.
Campbell Alan J.
Fullington David G.
Gerasimow Alexander M.
Quarles & Brady LLP
Rockwell Automation Technologies Inc.
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