The SIDOOR ATD400S Platform Screen Door Drive is an intelligent door drive system which enables platform screen doors to be opened and closed at adjustable speeds and accelerations.

It is not suitable for stand-alone operation. External commands are only accepted via the serial interface. The SIDOOR ATD400S platform screen door drive is always operated in conjunction with the AT?EB expansion unit, see "Expansion units".

The maintenance-free, variable speed drive unit comprises a DC motor with non-self-locking gearing.

Three different motors are available:

• SIDOOR M2 geared motor (24 V DC/1.8 A; motor for max. total door leaf weight of 120 kg)
• SIDOOR M3 geared motor (30 V DC/4.0 A; motor for max. total door leaf weight of 180 kg)
• SIDOOR M4 geared motor (30 V DC/4.0 A; motor for max. total door leaf weight of 400 kg)

They 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 ATD400S Platform Screen 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. The accessory parts are not included in the scope of supply, see "Accessories".

This enables handling of both one-sided and centrally opening doors.