The invention relates to a door drive and a corresponding safety door. The door drive comprises an electric drive unit, a movable door leaf used for electrically driving the safety door, a control unit which is connectable to the electric drive unit and used for controlling the current supply To the electric drive unit, a mechanical accumulator which is used for storing potential energy and can be coupled with the door leaf so that energy is loaded into an energy storage device during the opening movement of the door leaf and supports the door leaf in the event of energy output from the energy storage device, and a fault notification device which is designed to trigger electrical separation of the electric drive unit from the control unit in the presence of a fault criterion in order to inhibit the electric drive of the door leaf and to prevent the door leaf from being closed by means of the mechanical energy storage device. The door drive further comprises a drive-activated module (40) which enables temporary bridging of the separation of the electric drive unit from the control unit triggered by the fault notification device.