Abstract: An equipment (21) for controlling an elevator door (22) comprises a motor (24), an encoder (25) connected to the motor and a motor control unit (26), which are integrated into a coherent motor unit (23), an elevator control system (28), power supply means (29) for supplying operating power from the control system to the motor unit, and a data transfer bus (30) for data transfer between the control system and the motor unit. According to the invention, the data transfer bus (30) is bi-directional, and the motor unit (23) comprises a motor data storage unit (31).

Abstract: The invention concerns a method and a system for integrating electric elements of an elevator in a single module, e.g. in the door operator of the elevator. Especially to reduce the number of components to be installed and to enable the electric elements of the elevator system to be added to the door operator on the elevator car already at the manufacturing stage. The basic idea of the method of the invention is to integrate electric components to be placed in the elevator system, such as location elements, acceleration sensors and door zone sensors, with the door operator or some other module already at the manufacturing stage of the elevator, e.g. by placing the active parts of the sensors in conjunction with the door operator and the passive parts on the floor level side.

Abstract: The invention concerns a device, a method and a system for improving the safety system of an elevator. The safety system of the invention comprises an electric safety device, which monitors the velocity and position of the elevator in the elevator shaft. The safety device is e.g. a computer that is able to stop the elevator, using the brake of the hoisting machine or an optional car brake. The basic idea of the safety system of the invention is to form a continuous limit curve for control of elevator speed. The limit curve defines the limits of allowed elevator motion, which are determined on the basis of the nominal speed of the elevator and the location of the car.

Abstract: A control circuit for controlling an electromechanical elevator brake, said control circuit comprising at least one brake coil (L1), a direct-voltage source (BR1), a semiconductor switch arrangement and a control unit (CO1) for controlling the circuit, and which circuit further comprises a current measuring unit (IM1) producing current data that can be passed to the control unit (CO1). The circuit comprises at least two semiconductor switches (SW1, SW2), and these can be controlled by the control unit (CO1) in an alternate manner such that the working condition of each switch can be checked in its turn on the basis of feedback data obtained from the current measurement.

Abstract: The invention relates to a procedure for stopping an elevator car at a landing, in which procedure the travelling velocity and position of the elevator in the shaft are measured and a distance from the landing, i.e. a deceleration point at which deceleration is started, is determined for one travelling velocity, i.e. a reference velocity. According to the invention, the deceleration point is changed in proportion to the difference between the measured travelling velocity and the reference velocity.