METHOD, ELEVATOR CONTROL UNIT AND ELEVATOR FOR MOVING AN ELEVATOR CAR TO LANDING FLOOR IN CASE OF EVENT RELATED TO MAIN ELECTRICAL POWER SUPPLY OF THE ELEVATOR
Present invention provides a method and an elevator for moving an elevator car (130) to a landing floor (160) in case of a predefined event related to a main electrical power supply (125) of an elevator (1000). The method comprises charging (320) energy from the main electrical power supply (125) in...
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Format: | Patent |
Sprache: | eng ; fre ; ger |
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Zusammenfassung: | Present invention provides a method and an elevator for moving an elevator car (130) to a landing floor (160) in case of a predefined event related to a main electrical power supply (125) of an elevator (1000). The method comprises charging (320) energy from the main electrical power supply (125) into an external electrical energy storage (114) prior to detecting (330) the predefined event related to the main electrical power supply (125), controlling (340) an operation of an electric motor (155) for moving the elevator car (130) with an electrical drive (105) to decelerate the elevator car (130) and to produce regenerative electrical energy, selectively utilizing (350) said energy charged from the main electrical power supply (125) into the external electrical energy storage (114) and said produced regenerative electrical energy to maintain an elevator brake (116) in deactivated state. |
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