Abstract: Registered car calls are indicated in the car call buttons of an elevator car operating panel by illuminating one of the car call buttons with a first illumination characteristic, and the floor position of the elevator car within the building is indicated by illuminating any of the same car call buttons with a second illumination characteristic, different from the first illumination characteristic. One part of the car call button (such as the center) may be used to indicate registered car calls and another part of the car call button (such as the ring) may be used to indicate car position (or vice versa). Registered car calls may be indicated by steady or invariant illumination from the car call button while car position is indicated by illuminating the appropriate car call button with flashing illumination. Colors may also be used.

Abstract: A system for position loss recovery for an elevator car includes a plurality of pairs of encoded floor magnets that uniquely identify each floor. Upon restoration of power, the encoded floor magnets are sensed by an encoded floor sensor and the precise floor location of the elevator car is determined.

Abstract: The main relay that controls power to an elevator motor and brake lift coil is dropped by an electronic emergency stop relay contact placed in series with the elevator safety chain in the event that the speed and position indications in the elevator controller do not agree with the indications of the emergency terminal stopping speed and zone relays, or if the elevator controller indicates the elevator is going too fast when within the emergency terminal stopping zone. Various parts of the safety chain are cycled off when the elevator is at a landing in order to check the safety circuits and main power relays.