Elevator arrangement
First Claim
1. Arrangement for controlling the power supply of the load of an elevator system, which arrangement comprises at least a monitoring unit and at least one controllable power source, which controllable power source is fitted between the load of the elevator system and the monitoring unit such that the power supply of the load of the elevator system can be controlled by means of a control signal transmitted to the controllable power source by the monitoring unit, wherein the monitoring unit contains at least one input for determining the status of the safety switch of the elevator system and in that the monitoring unit is fitted to send to at least one controllable power source on the basis of the status of the safety switch either a control signal comprised of pulses for supplying power to at least one load or a control signal in a static state for preventing the power supply of at least one load.
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Accused Products
Abstract
The present invention discloses an arrangement and a method for controlling the power supply of the load of an elevator system. The arrangement comprises at least a monitoring unit (40) and at least one controllable power source (41), which controllable power source (41) is fitted between the load (2, 12, 13) of the elevator system and the monitoring unit (40) such that the power supply of the load (2, 12, 13) of the elevator system can be controlled by means of a control signal transmitted to the controllable power source (41) by the monitoring unit (40). The monitoring unit (40) according to the invention contains at least one input for determining the status of at least one safety switch (11) of the elevator system. On the basis of the status of the safety switch a control signal (47) either comprised of pulses or in a static state is sent with the monitoring unit (40) to at least one controllable power source (41).
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Citations
20 Claims
- 1. Arrangement for controlling the power supply of the load of an elevator system, which arrangement comprises at least a monitoring unit and at least one controllable power source, which controllable power source is fitted between the load of the elevator system and the monitoring unit such that the power supply of the load of the elevator system can be controlled by means of a control signal transmitted to the controllable power source by the monitoring unit, wherein the monitoring unit contains at least one input for determining the status of the safety switch of the elevator system and in that the monitoring unit is fitted to send to at least one controllable power source on the basis of the status of the safety switch either a control signal comprised of pulses for supplying power to at least one load or a control signal in a static state for preventing the power supply of at least one load.
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11. Method for controlling the power supply of a load in an elevator system, which elevator system comprises at least a monitoring unit and at least one controllable power source, which controllable power source is fitted between the load of the elevator system and the monitoring unit, according to which method the power supply of the load of the elevator system is controlled by means of a control signal transmitted to the controllable power source by the monitoring unit, wherein
with the monitoring unit the status of at least one safety switch of the elevator system is determined. on the basis of the status of the safety switch either a control signal comprised of pulses for supplying power to at least one load is sent with the monitoring unit to at least one controllable power source or on the basis of the status of the safety switch a control signal in a static state for preventing the power supply of at least one load is sent with the monitoring unit to at least one controllable power source.
Specification