Geared Motors - Siemens SIDOOR AT40 System Manual

2.3.2

Geared motors

Geared motors form the maintenance-free drive unit in the door drive. The geared motors
feature DC motors with non-self-locking gearing and are speed-controlled. The set force and
speed limits are not exceeded.
The force transfer takes place by means of a toothed belt which passes over a deflector
pulley and can be fitted with two clutch holders. This enables both single-sided and centrally-
opening doors to be driven.
Door control units SIDOOR AT40 and ATD400V for elevators
System Manual, 06/2018, A5E42192709-AC
System overview
2.3 Products
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