Electricity: motive power systems – Positional servo systems – With protective or reliability increasing features
Reexamination Certificate
2007-02-27
2007-02-27
Donovan, Lincoln (Department: 2837)
Electricity: motive power systems
Positional servo systems
With protective or reliability increasing features
C318S569000, C318S600000, C318S625000, C318S034000, C318S039000, C318S049000, C361S042000, C361S063000, C361S093100
Reexamination Certificate
active
10841940
ABSTRACT:
A drive unit for controlling drives of machine tools or production machines includes a signal electronics unit, a startup/diagnostic unit, and an interface between the signal electronics unit and the startup/diagnostic unit. The interface has a data line for data exchange between the signal electronics unit and the startup/diagnostic unit, and an electric power line independent of the data line. A switch can be provided that disconnects the signal electronics unit from a power mains or from an additional power supply, when a power failure is detected, and connects the signal electronics unit to the startup/diagnostic unit via the electric power line. This provides a simple and cost-effective approach for supplying electric power to the signal electronics in the event of a power failure or malfunction of the main power feed to the drive unit.
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Donovan Lincoln
Feiereisen Henry M.
Glass Erick
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