Emergency operating arrangement for at least one building technical device, comprising: • a power supply unit, • an emergency supply unit, wherein the power supply unit and the emergency supply unit are configured to be supplied by an electrical supply and are configured to output a DC voltage, wherein the emergency supply unit is configured to detect an emergency situation and is configured to output, when the emergency situation is detected, a DC voltage higher than the DC voltage output by the power supply unit when the emergency situation is not detected, • wherein the emergency supply unit comprises: ∘ a detection circuit configured to detect a change in the electrical supply as an indication of the emergency situation, the emergency supply unit outputting the higher DC voltage when the change in the electrical supply is detected by the detection circuit, and configured to output an indication signal indicating the change in the electrical supply to a control unit, ∘ a charging circuit, an energy storage component, and an output converter, wherein the charging circuit is configured to charge the energy storage component based on the electrical supply, and the output converter is supplied from the energy storage component, and the output converter is configured to output the higher DC voltage, ∘ the control unit configured to evaluate the indication signal output by the detection circuit, and configured to control the output converter to output the higher DC voltage, ∘ a communication module configured to receive configuration information, and configured to send the configuration information to the control unit, wherein the control unit is configured to evaluate the configuration information and control, based on the configuration information, the charging circuit to change a charging scheme of the energy storage component. • a power supply unit, • an emergency supply unit, wherein the power supply unit and the emergency supply unit are configured to be supplied by an electrical supply and are configured to output a DC voltage, wherein the emergency supply unit is configured to detect an emergency situation and is configured to output, when the emergency situation is detected, a DC voltage higher than the DC voltage output by the power supply unit when the emergency situation is not detected, • wherein the emergency supply unit comprises: ∘ a detection circuit configured to detect a change in the electrical supply as an indication of the emergency situation, the emergency supply unit outputting the higher DC voltage when the change in the electrical supply is detected by the detection circuit, and configured to output an indication signal indicating the change in the electrical supply to a control unit, ∘ a charging circuit, an energy storage component, and an output converter, wherein the charging circuit is configured to charge the energy storage component based on the electrical supply, and the output converter is supplied from the energy storage component, and the output converter is configured to output the higher DC voltage, ∘ the control unit configured to evaluate the indication signal output by the detection circuit, and configured to control the output converter to output the higher DC voltage, ∘ a communication module configured to receive configuration information, and configured to send the configuration information to the control unit, wherein the control unit is configured to evaluate the configuration information and control, based on the configuration information, the charging circuit to change a charging scheme of the energy storage component. ∘ a detection circuit configured to detect a change in the electrical supply as an indication of the emergency situation, the emergency supply unit outputting the higher DC voltage when the change in the electrical supply is detected by the detection circuit, and configured to output an indication signal indicating the change in the electrical supply to a control unit, ∘ a charging circuit, an energy storage component, and an output converter, wherein the charging circuit is configured to charge the energy storage component based on the electrical supply, and the output converter is supplied from the energy storage component, and the output converter is configured to output the higher DC voltage, ∘ the control unit configured to evaluate the indication signal output by the detection circuit, and configured to control the output converter to output the higher DC voltage, ∘ a communication module configured to receive configuration information, and configured to send the configuration information to the control unit, wherein the control unit is configured to evaluate the configuration information and control, based on the configuration information, the charging circuit to change a charging scheme of the energy storage component.