METHOD OF RESETTING A SAFETY SYSTEM OF AN ELEVATOR INSTALLATION
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Accused Products
Abstract
A method for resetting a safety system of an elevator installation from an actual state, in which a normal operation of the elevator installation is not released, to a desired state, in which a normal operation of the elevator installation is released by the safety system includes the steps of: receiving a reset request, which is transmitted from the elevator control system, for resetting from the actual state to the desired state, in the safety system; carrying out verification of the reset request by the safety system; evaluating the verification by the safety system; and resetting the safety system from the actual state to the desired state if the verification by the safety system is evaluated as valid.
21 Citations
31 Claims
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1-15. -15. (canceled)
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16. A method of resetting a safety system of an elevator installation from an actual state, in which a normal operation of the elevator installation is not released, to a desired state, in which a normal operation of the elevator installation is released by the safety system, wherein the safety system is connected by a communications interface for data exchange with a control system associated with the elevator installation, but which control system is not included in the safety system, comprising the steps of:
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a) receiving a reset request, which is transmitted from the control system, for resetting from the actual state to the desired state, in the safety system; b) performing a verification of the reset request by the safety system; c) evaluating the verification by the safety system; and d) resetting the safety system from the actual state to the desired state if the verification by the safety system is evaluated as valid. - View Dependent Claims (17, 18, 19, 20, 21, 22, 23, 24, 25, 26)
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27. An elevator installation comprising:
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a safety system which is resettable from an actual state, in which a normal operation of the elevator installation is not released, to a desired state, in which a normal operation of the elevator installation is released by the safety system; and a communications interface connected to the safety system for data exchange with a control system which is associated with the elevator installation, but which is not included in the safety system, wherein the safety system includes a central control unit that; a) receives a reset request, transmitted from the control system through the communications interface, for resetting from the actual state to the desired state, b) performs a verification of the reset request, c) evaluates validity of the verification, and d) responds to the verification evaluated as valid by resetting from the actual state to the desired state. - View Dependent Claims (28, 29, 30, 31)
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Specification