How The Besam Sw200I Works - Besam SW200i Installation And Service Manual

4 How the Besam SW200i works

4 How the Besam SW200i works
The swing door operator Besam 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-adjusted
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.
4.3 Control switch
4.3.1 ON/OFF/HOLD open switch (option)
3-position switch
P/N: 75-15-310 Clear
P/N: 75-15-310 Black
8 Issue 2013-02-10 1009937-EI-1.0