Powering the AL-WS-DR1-PIR
Power the switch via the Power input connectors, 48 to 52v is recommended. No DALI connection is required.
You can feed from the input to the output up to 2 amps. After power up – you might see a flicker while it learns the
capability of the attached LED. After that phase – the result is stored in on-board EEprom and will be updated for
temperature and aging changes or each time the slider is moved to low dim.
Default Operation – stand alone
By default – the AL-WS-DR1-PIR operates stand alone – no controller or master is required. Connect the LED
output to your LED’s. See
https://atxled.com/How2
for wiring suggestions. No other wires are required. Press the
button and the light will turn on. Occupancy, Vacancy modes can be selected from the front panel. The light can
be turned off from the switch as well.
Presence Sensing
The AL-WS-DR1-PIR detects the presence of people by infrared passive sensing. The sensitivity is learned over
time. Each time the On button is pressed when the switch has inferred that no person is present, the minimum
sensitivity will be increased. Each time the light is manually turned off, after the expected vacancy timeout period,
and we can infer that sensitivity needs to be reduced.
Daylight Harvesting for Motion sensing
When the AL-WS-DR1-PIR has turned the attached LEDs off – it can measure the light in the room. If there is
enough light in the room – then detection of presence will not automatically turn the lights on, the user would have
to press the switch to turn the lights on.
Vacancy Sensing and learning
When the AL-WS-DR1-PIR has detected no presence for 120 seconds, the slow fade dimming to off begins. This
will slowly turn the lights off to allow anyone in the room to reach the switch or trigger detection before the room is
dark. A button press during fading indicates that the vacancy sensing was not sensitive enough and the device will
increase sensitivity.
Built in or remote Night Light
If enabled, the AL-WS-DR1-PIR will turn on a light to guide people in the room without turning the lights on. This is
most useful in Vacancy mode. The night light brightness is controlled by DALI settings or user selection.
Fan operation
If a fan is detected, then the device will drive a Fan. The user can turn the fan on manually, or it will turn itself on if
motion is maintained for 3 minutes. In this mode, fan will stay on for 10 minutes after the last motion is detected.
