Safety device of an elevator system having an elevator car, comprising an evaluation device and a measuring device, wherein, by means of the evaluation device, by using output signals from the measuring device, departure from at least one door zone with an open elevator car door or reaching impermissible accelerations and/or speeds of the elevator car within the door zone can be detected and a control signal, on the basis of which the elevator car is braked, can be generated, wherein the safety device has a safety circuit that is connected to the evaluation device in order to ensure a first safe zone in the shaft head of an elevator shaft during an inspection run, wherein the safety circuit has a safety switch and wherein the elevator car comprises a tripping means for tripping the safety switch, wherein the safety switch and the tripping means have a first position relative to each other in which, by means of their position relative to each other, they predefine the first safe zone in the elevator shaft, so that the elevator car can be prevented from moving into the first safe zone during the inspection run by tripping the safety switch in that, by means of the evaluation device, the control signal on the basis of which the elevator car is braked can be generated on the basis of the tripping of the safety switch, characterized in that the safety switch and/or the tripping means are variable in their position and can have a second position relative to each other in which, by means of their position relative to each other, they predefine a second safe zone in the elevator shaft, so that an elevator car can be prevented from moving into the second safe zone during a normal run by tripping the safety switch, wherein, by means of the evaluation device, the same control signal on the basis of which the elevator car is braked can be generated on the basis of the tripping of the safety switch. comprising an evaluation device and a measuring device, wherein, by means of the evaluation device, by using output signals from the measuring device, departure from at least one door zone with an open elevator car door or reaching impermissible accelerations and/or speeds of the elevator car within the door zone can be detected and a control signal, on the basis of which the elevator car is braked, can be generated, wherein the safety device has a safety circuit that is connected to the evaluation device in order to ensure a first safe zone in the shaft head of an elevator shaft during an inspection run, wherein the safety circuit has a safety switch and wherein the elevator car comprises a tripping means for tripping the safety switch, wherein the safety switch and the tripping means have a first position relative to each other in which, by means of their position relative to each other, they predefine the first safe zone in the elevator shaft, so that the elevator car can be prevented from moving into the first safe zone during the inspection run by tripping the safety switch in that, by means of the evaluation device, the control signal on the basis of which the elevator car is braked can be generated on the basis of the tripping of the safety switch, characterized in that the safety switch and/or the tripping means are variable in their position and can have a second position relative to each other in which, by means of their position relative to each other, they predefine a second safe zone in the elevator shaft, so that an elevator car can be prevented from moving into the second safe zone during a normal run by tripping the safety switch, wherein, by means of the evaluation device, the same control signal on the basis of which the elevator car is braked can be generated on the basis of the tripping of the safety switch.