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How the SW100 works <br /> 3 How the SW1OO works <br /> The swing door operator SW100 uses a DC motor and a gear-reduction system to <br /> drive an arm system which opens the door. Closing power is provided by a motor and <br /> a clock spring. An electronic control unit uses a motor encoder and a microprocessor <br /> to control the door's movement. <br /> 3.1 Operation <br /> Your SW 100 operator can be configured in two variations to meet the standards: <br /> 1. Push plates are provided to activate the operator. The door also can be used as a <br /> manual door. <br /> 2. Push to activate can be enabled. In this mode, your door is pushed (or pulled) 5° <br /> manually,and then automatically opens to full open position. <br /> If desired,overhead presence devices can be provided for an extra level of protection. <br /> These are not required by current ANSI A156.19 codes. <br /> 3.2 Opening <br /> When an opening signal is received by the control unit, the door is opened at the <br /> operator-adjusted opening speed. Before the door is fully open at back check,it slows <br /> automatically to low speed. The motor stops when the selected door opening angle <br /> has been reached. The open position is held by the motor. <br /> If the door is obstructed while opening, it will either stall or stop which can be <br /> selected with a DIP switch. <br /> • When stalling-the door will continue to try to open during the hold open time. <br /> • When stopping -the door will, even if hold open time has not expired, close after <br /> 2 seconds. <br /> 3.3 Closing <br /> When the hold open time has elapsed,the operator will close the door automatically, <br /> using spring force and motor.The door will slow to low speed at latch check before it <br /> reaches the fully closed position. The door is kept closed by spring power or <br /> extended closing force by the motor. <br /> 6 Issue 2008-11-13 1003826-US-4.0 <br />