Elevator control device
AssigneeMitsubishi Electric Corporation
InventorHidetaka Ishiguro
Life of this patent
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Abstract
Provided is a control device for an elevator including: a first control unit configured to control a hoisting machine configured to raise and lower a car and a counterweight in a hoistway; and a second control unit configured to obtain a generation torque which is a torque to be generated by the hoisting machine, and to limit the obtained generation torque to be generated by the hoisting machine so that the obtained generation torque is lower than an abnormal torque which is the generation torque generated when, under a state in which a movement of one of elevating bodies which are the car and the counterweight is limited, the other elevating body is wound by the hoisting machine.
Claims15
A control device for an elevator, comprising:
- a first control circuit configured to control a hoisting machine configured to raise and lower a car and a counterweight in a hoistway;
- and
- a second control circuit configured to obtain a generation torque which is a torque to be generated by the hoisting machine, and to limit the obtained generation torque to be generated by the hoisting machine so that the obtained generation torque is lower than an abnormal torque which is the generation torque generated when, under a state in which a movement of one of elevating bodies which are the car and the counterweight is limited, the other elevating body is wound by the hoisting machine,
- wherein the abnormal torque is a torque generated when the other elevating body is wound by the hoisting machine under one of a state in which the movement of the car being the one elevating body is limited by an emergency stop device provided for the car or a state in which the counterweight being the one elevating body is in contact with a buffer provided in the hoistway so that a downward movement of the counterweight is limited.
A control device for an elevator, comprising:
- a first control circuit configured to control a hoisting machine configured to raise and lower a car and a counterweight in a hoistway;
- and
- a second control circuit configured to obtain a generation torque which is a torque to be generated by the hoisting machine, and to limit the obtained generation torque to be generated by the hoisting machine so that the obtained generation torque is lower than an abnormal torque which is the generation torque generated when, under a state in which a movement of one of elevating bodies which are the car and the counterweight is limited, the other elevating body is wound by the hoisting machine,
- wherein the abnormal torque is the generation torque generated when the car being the other elevating body is wound by the hoisting machine under a state in which the counterweight being the one elevating body is in contact with a buffer provided in the hoistway so that a downward movement of the counterweight is limited.
A control device for an elevator, comprising:
- a first control circuit configured to control a hoisting machine configured to raise and lower a car and a counterweight in a hoistway;
- and
- a second control circuit configured to obtain a generation torque which is a torque to be generated by the hoisting machine, and to limit the obtained generation torque to be generated by the hoisting machine so that the obtained generation torque is lower than an abnormal torque which is the generation torque generated when, under a state in which a movement of one of elevating bodies which are the car and the counterweight is limited, the other elevating body is wound by the hoisting machine,
- wherein the abnormal torque is a first abnormal torque which is the generation torque generated when the counterweight being the other elevating body is wound by the hoisting machine under a state in which the movement of the car being the one elevating body is limited by an emergency stop device provided for the car.
Dependencies are inferred from the claim text.