The emergency power module is connected between the power supply unit and the voltage input of the various controllers:

• SIDOOR AT40 and SIDOOR ATD400V Elevator Door Drives
• SIDOOR ATD400K Cold Room Gate Drive, SIDOOR ATD400W and SIDOOR ATD410W Machine Tool Door Drives
• SIDOOR ATD400S Platform Screen Door Drive

In the event of a power failure, this module switches the power supply from the switch mode power supply to the 24 V DC emergency power supply (battery).

During the switchover, the controller receives the command to reduce the travel speed of the door to initial speed in order to prevent excessive discharging of the connected batteries.