How The Sw100 Works - Assa Abloy Besam SW100 Owner's Manual

How the SW100 works

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3.1 Operation
3.2 Opening
3.3 Closing
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The low energy swing door operator SW100 uses a DC motor and a gear-reduction
system to drive an arm system which opens the door. Closing power is provided by a
motor and a clock spring. An electronic control unit uses a motor encoder and a
microprocessor to control the door's movement.
Your SW100 operator can be configured in two variations to meet low energy stand-
ards:
1. Push plates are provided to activate the operator. The door also can be used as a
manual door.
2. Push to activate can be enabled. In this mode, your door is pushed (or pulled) 5°
manually, and then automatically opens to full open position.
If desired, overhead presence devices can be provided for an extra level of protection.
These are not required by current ANSI A156.19 codes.
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.
• When stalling - the door will continue to try to open during the hold open time.
• When stopping - the door will, even if hold open time has not expired, close after
2 seconds.
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
extended closing force by the motor.
Issue 2007-08-24
How the SW100 works
1003826-US-3.0