Mini presence and light detector DALI-2 BMS

Product information

This online manual is applicable to the following products:

• 350-155521 | Mini presence and light detector, DALI-2 BMS, Ø10 m, white

• 350-155522 | Mini presence and light detector, DALI-2 BMS, Ø10 m, black

• 350-996991 | Interalu ® SAPP bracket for mini presence and light detector, white

• 350-996992 | Interalu® SAPP bracket for mini presence and light detector, black

• 350-997991 | Interalu® WEC bracket for mini presence and light detector, white

• 350-997992 | Interalu® WEC bracket for mini presence and light detector, black

Description

This DALI-2 certified detector senses presence and measures light as a DALI-bus powered input device for a lighting control system or a Building Management System (BMS). Its compact size and matching mounting brackets enable easy installation in ceilings where traditional detectors are hard to fit or visually intrusive. A pre-wired 50 cm DALI bus cable with a WAGO plug simplifies connection and reduces installation time.

Dimensions

350-15552x | Mini presence and light detector DALI-2 BMS

350-99699x | Interalu® SAPP bracket

350-99799x | Interalu® WEC bracket

Operation

The detector operates as a DALI-2 bus-powered input device for a DALI-2 application controller in a lighting control system or a Building Management System (BMS). Using the detector presence and light sensors, the application controller commands DALI-2 control gear to switch lights off when no presence is detected and on when needed, automatically dimming illumination to account for available daylight (daylight harvesting) for energy savings.

The detector clips into mandatory purpose-designed mounting brackets for fast, secure installation. For climate ceiling systems like Interalu®, specific brackets fit the lamellae of SAPP or WEC ceilings. Bracket and detector colours match the lamella finish or come in black to blend with the lamella spacing, for a discreet appearance.

Presence detection

The detector’s Passive Infrared (PIR) sensor is engineered to maximize the detection area while keeping the lens compact for a more discreet appearance. When installed at a height of 2.5 m, it provides 360° coverage, detecting small movements within an 8 m diameter area—essential for reliable presence detection—and larger motion within a 10 m diameter area.

The detector includes a sensitivity parameter that can be adjusted from 100% down to 0%. Refer to the programming section for details.

Light measurement

The detector's light sensor measures illuminance from 0 to 4,095 lux. It detects low ambient light for automatic lighting control and high daylight levels for efficient daylight harvesting and dimming of DALI lighting.

The detector reports illuminance measurements on the DALI bus using Instance 1, in accordance with IEC 62386-304.

Beyond IEC 62386-304, the detector includes a reflection factor to compensate for the difference between the illuminance measured at the ceiling and the illuminance at the target area.
Configuring the reflection factor on the detector is optional: if the application controller used does not support an equivalent, the reflection factor can instead be configured at the detector level. Refer to the programming section for details.

LED Behaviour

	Red LED single flash	Small movement or motion detected.
	Green LED flashing	DALI signal sent or received from the application controller.

Wiring

Placement

• Do not place the detector near HVAC or projector airflows, which interfere with the presence sensor.

• Avoid direct sunlight, which blinds the light sensor.

Installation

Procedure

Follow these steps:

Step 1

Pass the pre-wired DALI-2 bus cable from the detector through the bracket.

Step 2

Terminate the DALI-2 bus cable from the ceiling with a WAGO WINSTA® MINI socket (890-1102, 2-pole, Coding I, blue) and clip its WAGO WINSTA® MINI male plug (890-1112, 2-pole, Coding I, blue) into the WAGO socket.

Step 3

Clip the detector into the bracket.

Step 4

Clip the bracket to the ceiling system to secure the detector and tidy the cable.

Result

Programming

Light sensor

Procedure

Proceed as follows:

1. Adjust the light sensor's illumination measurement using a reflection factor to match the target area's illumination.

2. Use an application controller that supports IEC 62386 parts 101/103/303/304 to store in the detector's non-volatile memory the reflection factor:

   • Reflection factor format = lux measured at the target area / lux reported by the detector x 1000

   • Memory Bank: 1

   • Unlock reflection factor write: write 0x5A at address 25

   • Reflection factor addresses: write reflection factor hi / low bytes at respective addresses 26 and 27

   • The default value is 0xFF (not set) at both 26 and 27

Example

Given the following values:

• The luxmeter at the target area indicates 600 lx.

• The detector reports 200 lx.

Then:

• The reflection factor is 600/200 * 1000 or 3000

• Write 0x5A at 25

• Write 0x0B at 26 and 0xB8 at 27

Presence sensor

Proceed as follows:

1. Adjust the presence sensor sensitivity from 100% to 0%.

2. Use an application controller that supports IEC 62386 parts 101/103/303/304 to send a command over DALI on occupancy Instance 0 in accordance with IEC 62386-303 Amendment 1:

• • Range values: 0 to 100

  • Read: command QUERY SENSITIVITY (0x2B)

  • Write: load the required value into DTR0, then send command SET SENSITIVITY (DTR0) (0x26) twice

  • Small movement detection range impact: approximately from a diameter of 5 m at 0 to a diameter of 8 m at 90

  • The default value is 90