Device for protecting a machine system a gainst undesired operation
Number of patents in Portfolio can not be more than 2000
United States of America Patent
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N/A
Issued Date -
Nov 28, 2002
app pub date -
Jul 16, 2002
filing date -
Jan 17, 2000
priority date (Note) -
Abandoned
status (Latency Note)
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Abstract
The present invention describes a device for protecting a machine system against undesired operation. The protective device has at least one central power switch, which is arranged on the input side in series in a power supply path of the machine system. It also has a central control part, which has a substantially dust-tight enclosure, with a defined number of inputs for connecting decentralized operating elements. In this case, the central control part activates the at least one central power switch in accordance with the connected operating elements. The protective device also has at least one decentralized operating element, which is spatially arranged in a hazard area of the machine system and is connected via a cable connection to one of the inputs of the central control part. The decentralized operating element generates a continuing protection-request signal in accordance with a protection request and the control part opens the power switch when the continuing protection-request signal of at least one operating element is present.
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