Motion sensor
The motion sensor has a detection area defined on the device detection diagram section. The sensor length depends on the installation height and detection sensibility could be modified throughout a potentiometer which allows to adjust it to each kind of environment and avoids performing false detections.

In stand-by, the relay output contact will be open and power won’t be present on the output terminals L’-N, for that reason the lights will be off. Relay output will switch on when motion will be detected and at the same time lights will switch on to their maximum value. After a preset time from last valid detection, the relay output will switch off automatically. This switch off time could be predefined throughout a potentiometer.

When power supply is applied on the device, motion sensor requires a stabilization time while the device is in a non-detection state (refer to Technical features).

Light sensor
Light sensor is measuring constantly the light level inside the defined area of the radiation diagram of the sensor. When the relay output is switched on, lights will switch on to their maximum value and device will start to perform the automatic constant light control until the lights will reach the pre-configured light level Front pushbutton of the device is used to configure zone’s lighting set point. Refer to Device configuration section to adjust the lighting set point.

Auxiliary input
The device has an auxiliary phase commutation digital input (refer to installation diagram) which could be configured as a Scene mode (in switch mode) or dimmer (in pushbuttonmode).

Scene function (switch mode), is used for example in meeting rooms to reduce light level when the user wants to show a projection, or to fix a light level on the hospital corridors during nights. When input sets to scene mode (switch mode), the input activation disables sensors functionality and modifies the light level to a preset constant level. Light value could be set as required (Refer to Device Configuration). The input deactivation, enables again sensor functionality and lights will go back to preset set point.

Dimmer function (pushbutton mode) allows user to temporarily modify a zone light value manually, increasing or reducing light level as required. When input is configured on dimmer mode (pushbutton mode), by pushing it the light level increases until the pushbutton is released. Light level preset will be constantly maintained at any time in the zone, until lights will switch off because of no motion detected. When lights will switch on again, light level will reach again the preset value configured during the installation phase.