Functions On The Basic Control Unit Cu-300; Power Failure; Closing Torque; Extended Closing Torque (Cltq) - Assa Abloy Besam SW300 Installation And Service Manual

5 How the Besam SW300/SW150 works
5.4

Functions on the basic control unit CU-300

See page 56 for more information.
5.4.1

Power failure

During power failure the operator acts as a door closer with controlled closing speed and a micro
switch will make a lock kick to secure latching (only fire rated version and no Inverse installation).
5.4.2

Closing torque

To comply with authority requirements or to overcome over/under pressure the closing torque
can be adjusted according to EN1154 Door Closer, power size 4-5 for Pull and 4-6 for Push.
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 poten-
tiometer is turned clockwise, the motor will increase the closing torque. Extended closing torque
will be reduced to zero:
• If the door mounted sensor presence detection is activated during the last 10° before closing.
• If the door mounted sensor presence impulse is activated in closed position or during closing
(even if manually opened).
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 programme selector setting OFF.
5.4.6

Besam SW300 inverse (INV)

DIP-switch to select when inverse installation.
To be used for doors in emergency escape routs where the door has to open in case of fire alarm
(smoke evacuation). The door is opened by spring force and closed by motor operation. If lock is
used, the lock must fulfill the ELtVTR-standard.
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

Overhead presence detector (OPD), frame mounted

When an OPD 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 sensative
during opening and closing. Lock-out signal is available as it is required by some OPD sensors for
proper function.
• a closed door will not open, if the OPD detects activity in the field
• an open door will not close, if the OPD detects activity in the field
• during opening, the door will continue to open, even if the OPD detects activity in the field
• during closing, the door will continue to close, even if the OPD detects activity in the field
• the OPD is not active in program mode OFF, manually opened door or during battery operation
(Power Save Mode).
14 Issue 2014-10-28 1007913-EI-9.0