Introduction; Rev.01 Issue - Siemens AT 18 Operating Instructions Manual

Rev.01 Issue 09/05

2 Introduction

The AT18 comfort lift door drive is an "intelligent" door drive, with which cabin doors and
landing gates can be operated with adjustable speed and acceleration. The
maintenance-free drive unit consists of a direct current motor with a non self locking gear
box that is driven by a controlled rotational speed motor. The power transmission takes
place over a toothed belt. The toothed belt is led across a deflection pulley and can be
equipped with two door pushers. This allows both one-sided as well as central opening
doors to be operated.
The AT18 is currently delivered with the following motor:
- 24V motor, 4.9A for maximum 180 kg total door leaf mass
The door drive can be ordered with various drive pinion mounting positions (on the left or
right, see the diagram in the Appendix).
The door drive does not require a limit switch.
The door width as well as the "OPEN" and "CLOSE" positions are determined
automatically.
A display of the current operating condition is shown via a 7 segment display (H5000) in
the controller.
In the Appendix are all important dimensional drawings, a mounting suggestion and the
ID numbers for ordering the individual drive components.
Note
For reasons of clarity these operating instructions do not contain detailed information
about all product models and can also not cover every conceivable installation, operation
or the maintenance question.
If you require further information, or if special problems should arise which are not
explained in enough detail in this manual, you can get the necessary information from
the AT Service Hotline Tel: (05 11) 877-14 71.
In addition we wish to point out that the content of this manual is not part of an earlier or
existing agreement, declaration of intent or legal relationship or a revision of such. All
obligations of Siemens result from the respective sales contract, which also contains the
complete and only valid guarantee regulations. The contractual guarantee provisions are
neither extended nor limited by the actions taken as a result of using this manual.
4 Operating instructions AT18 SEDM