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ASSA ABLOY SW200: Operating Principles & Functions Guide

ASSA ABLOY SW200 Technical Manual | Operating Principles & Functions

5. How the ASSA ABLOY SW200 Works

The swing door operator ASSA ABLOY SW200 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 acts 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.

5.1 Opening

When an activation signal is received by the control unit, the door is opened at the installer-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.

5.2 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.

5.3 Control Switch

5.3.1 ON/OFF/HOLD Open Switch (Option) - P/N: 1003582

Function Description
ON Impulses from activation units connected to XIMP are forwarded into inner impulse.
OFF Impulses from activation units connected to XIMP are not forwarded into inner impulse. These units cannot open the door.
HOLD The door is held permanently open.

5.4 Functions on the Basic Control Unit CU-200

5.4.1 Power Failure

During power failure the operator acts as a door closer with controlled closing speed. The micro switch located next to the spindle shaft can be adjusted to control when lock kick occurs.

5.4.2 Spring Force

The operator is delivered with spring pre-tension factory set to 360°. If necessary, the spring tension can be electronically adjusted with a potentiometer to required closing force, but max total 720°. The arm must also be relocated on the spindle.

Note: For IBC Egress doors with 22N manual opening force, use 180° spring tension.

5.4.3 Extended Closing Torque (CLTQ)

If the potentiometer CLTQ is set to 0°, the door will close with normal spring power. If the potentiometer is turned clockwise, the motor will increase the closing torque. Extended closing torque will be reduced to zero:

  • If the door mounted sensor is activated in closed position or during closing (even if manually opened). Does not apply to program select OFF.

Also, Extended closing torque will be canceled after the first closing by KILL, in all program selections (except secondary door with older firmware).

5.4.4 Power Assist (POAS)

If the potentiometer POAS is set to 0°, the door gives no power assist. If the potentiometer is turned clockwise, the motor will give/increase power assist when the door is opened manually. The range of the POAS is depending on the spring pre-tension.

5.4.5 Push and Go (PAG)

DIP-switch to select Push and Go, ON or OFF. Push and Go is available from any door position. Push and Go is not active in program selector setting OFF.

5.4.6 Overhead Presence Detector (OPD/OPS)

When an OPD/OPS sensor is mounted on the frame or operator cover just above the swing side of the door, it will–when activated–either keep the door open or closed. The sensor input is not active during opening and closing.

  • A closed door will not open if the OPD/OPS detects activity in the field.
  • An open door will not close if the OPD/OPS detects activity in the field.
  • During opening, the door will continue to open even if the OPD/OPS detects activity in the field.
  • During closing, the door will continue to close even if the OPD/OPS detects activity in the field.

Note: The OPD/OPS is not active in program mode OFF or when the door is manually opened. During closing, if an activation occurs, the door will re-open.

5.4.7 Activation Delay (AD)

This function requires a constant inner impulse for the specified time before the door will open. Fixed 2 sec. During closing the door will reopen immediately if impulsed.

5.4.8 Mat Safety

  • A closed door will not open if someone steps on the mat.
  • An open door will not close if someone steps on the mat.
  • During opening, the door will continue to open even if someone steps on the mat.
  • During closing, the door will continue to close even if someone steps on the mat.
  • Opening impulses are prevented during closing if someone steps on the mat.

Note: The mat is not active in program mode OFF or when the door is manually opened.

5.5 Functions on the Extension Unit EXU-SI

5.5.1 KILL Function

In the event that the KILL circuit is activated, all Safety Functions of the door will be overridden, causing the door to close even though an object or person may be in the door's path of travel. This mode is used primarily to isolate an area during a fire.

  • During KILL, the control will ignore all signals and close door(s) at normal speed.
  • Impulse Controlled KILL: Operator resumes normal operation after KILL RESET. Manual RESET involves removing the jumper and attempting reset via terminal No. 8 and Ground.
  • State Controlled KILL: When KILL signal is no longer active, the operator resumes normal operation.
  • The KILL input may be connected to either a normally open contact with GND as reference or a normally closed contact with QTST as reference.

5.5.2 Function of Locks

  • Lock output only works when the function switch is in OFF or EXIT.
  • Available output of DC for external locks.
  • DIP-switches to select 12 or 24 V DC, locked with or without power.
  • DIP-switch for lock release and potentiometer for opening delay.
  • DIP-switch for lock kick to overcome binding in the locking device during closing.
  • If the door cannot fully close, the operator will perform a lock retry (once if manually open, twice if automatically open).

5.5.3 Panic Bar

Panic bar can be disabled by the relay function on the extension board EXU-SA and an external power supply. Panic bar will then only be active during KILL.

5.5.4 Program Selector (Wall Mounted)

Input for OPEN, EXIT and OFF (if no program selector, AUTO is default). In OFF-position the operator will comply with the Low Energy Regulation.

5.5.5 Power Failure Mode (Reference Backup Batteries)

Optional backup batteries allow normal operation via impulses from the KEY SWITCH during power failure.

  • Two contacts available for 2 x 12 V batteries (NiMH).
  • Power Save Mode: Operator stands by for up to 1 week awaiting KEY impulse. Sensors (Mat, OPD/OPS, Presence) are inactive.
  • Convenience Mode: Operator works as normal until batteries are discharged. Max 300 cycles on fresh batteries. All sensors work normally.

To reset battery monitoring after replacement, press the Learn button while battery mode is active (mains disconnected).

5.5.6 & 5.5.7 Impulses

Input for OUTER impulse, KEY impulse and OPEN/CLOSE impulse.

OPEN/CLOSE Impulse: The impulse will open the door, and it will stay open until a new impulse is given. If no impulse is given, the door will close after 15 minutes (can be made infinite via parameters). Works only in program selection AUTO (and can be programmed for OFF/EXIT).

5.5.8 Nurse and Bed Functionality

Three documented solutions for configuring Nurse/Bed functionality using the EXU-SI secondary board:

Solution 1

  • Connect a bridge between 3 and 7 on the secondary EXU-SI.
  • Use any impulse on primary to open primary door.
  • Use Open/Close impulse on secondary to open both doors.

Solution 2

  • Connect a bridge between 3 and 7 on the secondary EXU-SI.
  • Set dip switch PAG on primary board to ON.
  • Use any impulse on primary to open primary door.
  • Push secondary door manually, and it will open up automatically and stay open until primary door is closing.

Solution 3

  • Connect a 1/0 switch between 3 and 7 on the secondary EXU-SI.
  • Switch in pos. 1: impulses on primary will open only primary door.
  • Switch in pos. 0: impulses on primary will open both doors.

5.6 Functions on the Extension Unit EXU-SA

For more detailed information, please refer to the specific configuration page in the full manual (Page 55).

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