How The Sw200I Works; Opening; Closing - Assa Abloy Besam SW200i US Installation And Service Manual

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How the SW200i works

The swing door operator SW200i uses a DC motor which is connected to the output shaft by a
combination of a bevel gear and spur gears. The arm system that is connected to the output shaft
opens the door in a wall mounted application.
There is also an adjustable spring mechanism connected to the output shaft. During opening of
the door, the clock spring is tensioned by the rotation of the output shaft. During the closing
cycle, the accumulated spring force is acting in the closing direction. The spring force can be
adjusted so there is appropriate force to close the door when it is operated manually or in case
of a power failure.
4.1

Opening

When an opening signal is received by the control unit, the door is opened at the operator-ad-
justed opening speed. Before the door is fully open at back check, it slows automatically to low
speed. The motor stops when the selected door opening angle has been reached. The open position
is held by the motor.
If the door is obstructed while opening, it will either stall or stop which can be selected with a
DIP-switch (SOS). Stop on stall is always active in program selector Mode Off.
Continue on stall - the door will continue to try to open during the hold open time.
Stop on stall - the door will, even if hold open time has not expired, close after 2 seconds.
4.2

Closing

When the hold open time has elapsed, the operator will close the door automatically, using
spring force and motor. The door will slow to low speed at latch check before it reaches the
fully closed position. The door is kept closed by spring power or combined with extended
closing torque by the motor.
1007718-US-3.0 Issue 2012-06-27
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