Abstract: A safety apparatus for elevator apparatuses which can move a cab via a drive, comprising: a monitoring unit for monitoring the drive and/or the motor regulation system of the drive, a safety device having at least two sensors, which can be switched between at least two switching states depending on a state, in particular a closing state. In order to be able to reduce operating costs, the safety device and/or the monitoring unit comprises a controller, which is designed to identify the respective switching states of the sensors, and to transmit data and/or monitoring signals to the monitoring unit.

Abstract: Safety apparatus for elevator apparatuses which can move a cab via a drive, wherein the drive can he monitored via a monitoring unit for monitoring the drive, comprising: a first safety circuit, which has a closed conduction state and an open conduction state, with an interruption apparatus for interrupting the drive depending on the conduction state of the first safety circuit, a safety device, which comprises at least two sensors, which can be switched between at least two switching states depending on a state to be detected by the sensors. To provide improved maintenance, a switching unit is provided, which can be switched between at least two switching states by connection to the safety device and is designed to effect the closed and/or open conduction state of the first safety circuit, wherein the switching unit comprises a transmission device for transmitting data and/or monitoring signals to the monitoring unit.

Abstract: A safety system for safeguarding a moving, guided motion element against unwanted collisions with an object located on a motion path in the direction of motion of the motion element, which safety system comprises an object-detection device for detecting an object in an area of the motion element, which object-detection device can be blocked with respect to object detection by a motion of the motion element, and has an electronic unit with which the motion of the motion element can be controlled and which is configured to assign a blocked state to the object-detection device when the motion element approaches, in which blocked state an object or motion element does not trigger a safety mode, wherein shut-off means are provided which, when a shut-off signal coming from the motion element is detected, transfer at least part of the object-detection device into the blocked state.