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US 2010/0141267 A1Published application
Device for checking a safety circuit of an elevator
AssigneeInventio AG
InventorDaniel Quinn
Life of this patent
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Abstract
A testing device for checking a safety circuit of an elevator apparatus includes at least one hardware-monitoring unit for monitoring at least one functionally relevant composite resistor in the safety circuit.
Claims14
A testing device for the purpose of checking an elevator apparatus of an elevator, wherein the testing unit comprises:
- at least one hardware-monitoring unit for monitoring at least one functionally relevant composite resistor in the elevator apparatus.
An elevator apparatus with a testing device and at least one safety circuit having at least two series-connected output-switching elements of sensors comprising:
- the testing device having at least one hardware-monitoring unit which in at least one operating mode monitors at least one functionally relevant condition of at least one hardware component of the safety circuit.
A hardware-monitoring method using a testing device comprising the steps of
- a. providing a hardware-monitoring unit in the testing device;
- and
- b. monitoring a relevant composite resistor of a safety circuit of an elevator control with the hardware-monitoring unit.
Dependencies are inferred from the claim text.