The SIDOOR ATD400V Elevator Door Drive for rising doors and rolling shutters is an intelligent door control system that enables the operation of vertical door systems on elevators at adjustable speeds and accelerations.

The maintenance-free, variable speed drive unit comprises a DC motor with non-self-locking gearing. The SIDOOR M4 geared motor (30 V DC/4.0 A; motor for max. dynamic door weight of 400 kg) must be ordered separately > see"Geared motors".

Operation of the door drive does not require a limit switch. The door width and the "OPEN"/"CLOSE" positions are determined automatically.

The current operating states are indicated by a 7?segment display directly in the SIDOOR ATD400V Elevator Door Drive. They can also be displayed externally with the aid of the Software Kit or Service Tool > see "Additional units".

Power transmission is via a toothed belt, which passes over a deflector unit and can be fitted with two door clutch holders. These accessories are not included in the scope of delivery > see "Accessories".