The invention provides an elevator state detection circuit which has the self-maintenance feature and can be operated stably and reliably for a long time. The elevator state detection circuit comprises a direct-current power source (1) and a detection module. The detection module comprises a direct-current voltage-reduction unit, an optocoupler (4) and at least one trigger switch (3). The trigger switches (3), the direct-current voltage-reduction unit and the optocoupler (4) are sequentially connected in series. The first input of each the trigger switch (3) serves as the positive pole terminal of the detection module. The positive pole terminal is connected with a positive pole of the direct-current power source (1). The optocoupler (4) is connected with a negative pole terminal of the detection module. The negative pole terminal is connected with the negative pole of the direct-current power source (1).
Elevator state detection circuit
2016-01-13
Patent
Elektronische Ressource
Englisch
IPC: | B66B Aufzüge , ELEVATORS |
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