Method and device for the startup of an electric drive of an elevator
AssigneeKone Corporation
InventorLauri Stolt
Life of this patent
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Abstract
The invention relates to a method and to devices for starting up an electric drive of an elevator. In the method a sensor that detects the direction of movement of the elevator car is fitted into the elevator system, the elevator car is brought into a state of movement, the direction of movement of the elevator car is detected from the measuring signal of the aforementioned sensor that detects the direction of movement of the elevator car and also the drive direction of the electric drive is connected in the control of the electric drive to the detected direction of movement of the elevator car.
Claims19
A method for initiating an electric drive of an elevator including a frequency converter and an acceleration sensor configured to detect a direction of movement of an elevator car, the method comprising:
- initiating movement of the elevator car;
- detecting the direction of movement of the elevator car based on a measurement signal from the acceleration sensor;
- and
- associating a drive direction of the frequency converter with the detected direction of movement of the elevator car.
A frequency converter to control an electric drive, the frequency converter comprising:
- a control unit configured to,
- detect a direction of movement of an elevator car based on a measurement signal from an acceleration sensor, and
- associate a drive direction of the frequency converter with the detected direction of movement.
Dependencies are inferred from the claim text.