Stand-Alone DALI Broadcast Module

• Function description

  The QDBC02SA is suitable for controlling up to 64 DALI devices. The 1 to 64 DALI lighting devices can be distributed over one or two DALI buses. (any combination from 0 devices on one circuit and 64 on the second to 32 devices on both circuits is possible). All DALI devices connected to the same bus will dim in the same way. The power supply for the two DALI buses is integrated into the QDBC02SA module. The supply voltage for the DALI luminaires is direct and does not need to be connected to the QDBC02SA (see diagram).

  When the dimmer is used as a Stand-Alone module, a minimum dim level of 0% or 10% can be selected per DALI bus, or a memory function can be activated. You can access these settings using the buttons on the module. Refer to "Manual Operation" in this technical sheet for more details. When using this dimmer in a Qbus installation, you have access to all settings available in System Manager III. If a different minimum dim level is set via System Manager III, the module retains this set percentage even in standalone mode.

  The DALI buses are short-circuit proof and protected against overload (too many luminaires). If the dimmer enters protection mode due to a short circuit or overload, the orange LED under the output will flash rapidly. The DALI buses will self-recover once the short circuit or overload is cleared. In case of a short circuit or overload, the bus is tested cyclically every 3 seconds. From firmware version 3.0 and when used with a Qbus controller in a full automation installation, the module also features a bistable error address to enable further actions, such as email actions via Qbuscloud. From 01/2022, you can adjust the DALI properties of LED drivers through an update via a connected CTD and System Manager III: Dim Min; Dim Max; Power Up-level (default 100%); DALI System failure level (default 100%).

  Individual addressing and group addresses are not provided. Commands are only sent at the DALI Broadcast level. 

  The module has 3 potential-free inputs for connecting standard push buttons (N.O.) Input 1 and 2 respectively control outputs 1 and 2. The A-input functions with a pulse between 0.7 sec and 3 sec as an "All Off" command. A long pulse >3 sec on the A-input functions as "All On" command. By linking the A-inputs of different Stand-Alone modules, multiple outputs on different modules can be controlled as a group. The functioning of input A can be adjusted when the QDBC02SA is connected to a Qbus CTD controller and using the Qbus configuration software System Manager III. This allows you to set the input delays, as well as a cascade time between 0 and 254 seconds. You can also determine whether the dim channels may or may not be controlled by an "All Off" and/or "All On" command on the A-input. The cascade control avoids peak load when, for example, many outputs are controlled simultaneously via input A. Once these changes are programmed, the module can be detached and continue to work in Stand-Alone mode with these settings. 

   

  The module contains 2 LED outputs for feedback on the switches. An external DC power supply between 5Vdc and 24Vdc must be installed depending on the working voltage of the LED feedback.

   

  The dimmer outputs can only be programmed as a one-button dimmer in standalone mode. In a one-button dimmer, the cycle must always be completed: pressing long from 100% to 0% or pressing long from 0% to 100% has a duration of 5 seconds. A short pulse (< 0.3 sec) brings the dimmer from 0% to 100% or from 100% to 0% in 2.5 seconds. 

  When using a Qbus Controller (CTD), the following additional functions, among others, can be used:

  • Dim start value "day" between 5% and 100%.
  • Dim start value "night" between 5% and 100%.
  • Timer function Time Off
  • Combination with logic, scenes, sensors…

  The dimmer can also be automatically dimmed upon activation via a short pulse after a set time of 1 second to 255 minutes (TimeOff). 

  If dimmers are controlled via a scene or TimeOff, the fade-out time and fade-in time can be set independently between 0.3

• Technical specifications

  General Specifications

  • Power Supply: 110 – 240Vac - +-15%, 50/60Hz, protected by automatic circuit breaker with a maximum of C16A/2P
  • Insulation Voltage: tested at 3 kVac
  • Consumption: 1.15VA unloaded. + 0.032VA per connected DALI device.
  • Operating Temperature: 10°C to 70°C. Storage Temperature: -10°C to 70°C
  • Maximum Humidity Level: 93%, non-condensing.
  • Bus Load: 20mA (peak) at nominal voltage 13.8V.
  • Maximum Installation Height: 2,000 meters above sea level.

  Outputs

  • Two independent DALI broadcast buses DA1 & DA2 with one common internal power supply for up to 64 lighting devices when drawing a maximum of 2mA power on the DALI bus.

  Physical Specifications

  • Enclosure: plastic, self-extinguishing according to UL94-V0
  • Protection Rating: IP20, EN 60529
  • Installation: quick mounting on DIN-rail, width 4 modules
  • Dimensions (h x w x l): 62mm x 90mm x 72mm
  • Weight: approximately 145g 

  General DALI Bus Specifications

  • DALI Bus Voltage: 16Vdc
  • Maximum distance between QDBC02SA and DALI device is 300m with a minimum wire cross-section of 1.5mm²
  • Topology: star and tree structure. No closed loop!
  • Support for DALI types controllable via broadcast signal

  Electrical Protection:

  • Bus: 13.8Vdc – 18Vdc very low safety voltage (ZLVS / SELV when using the correct power supply and connection).
  • Insulation Voltage: module is tested and approved at 3kVac. (50 Hz, 1 min).
  • Non-toxic, in accordance with WEEE/RoHS
  • Class II device (when placed in an enclosed fuse box..)
  • Compliant with EMC and low voltage regulations.

  CE

  Qbus declares that this product complies with all applicable European directives and regulations.

  The EU declaration of conformity is available upon request.

• Sizing

  QDBC02SA
• Explanation of symbols

  Equipment where protection against the risk of electric contact is not only based on basic insulation but also on additional protection such as double insulation or reinforced insulation. There is no possibility for grounding.

  Before connecting the device, it is mandatory to read the manual of the respective product. ISO7000-0434

  Power supply connection (230V) to the power supply connector. IEC 60417-5036

  CE conformity. All declarations of conformity are available upon request.

• Warranty Determination

  2 years from the date of delivery. The warranty becomes void if the module has been opened! The warranty period is extended by 2 years if it was installed by a certified Qbus installer.

  In case of defects, Qbus support should be contacted by a certified installer. After registration with Qbus support, the defective module can be sent, unsealed and with a description of the defect, to our Qbus support.

  QBUS N.V. Joseph Cardijnstraat 19, 9420 Erpe-Mere, Belgium

  T +32 53 60 72 10 - F +32 53 60 72 19

  Email: [email protected]

General

• Safety regulations

  Read the full manual before installing the module and activating the system.

  WARNING

  • The module must be installed, commissioned, and maintained by a certified electrical installer in compliance with the applicable legal regulations of the country where it is placed.
  • The module must be placed in a location inaccessible to children.
  • This module is only suitable for DIN-rail installation EN50022. The module must be installed in a fireproof, closed distribution box with ventilation grilles.
  • Before working on the QDBC02SA, ensure the power is switched off.
  • Never connect external voltages (e.g., 230Vac) to DALI buses, Qbus bus, or inputs! This will cause irreparable damage to the module and/or connected devices.
  • Only to be used in combination with approved DALI lighting devices.
  • A single DALI device may draw 2mA bus load, allowing for a maximum of 64 devices to be reached.
  • The module must not be opened. The warranty is void if the module is opened!
  • Never use the power supply of the Qbus Controller for powering the LED indicators on Stand-Alone modules!

Installation and wiring

• Installation

  Click the module onto a DIN rail DIN EN50022.

• Power Supply

  WARNING: DISCONNECT THE POWER SUPPLY TO THE MODULE BEFORE WORKING ON THE MODULE!
  A two-pole automatic circuit breaker with a maximum of 16A must be connected to the 230Vac module power supply. Conductor cross-section: minimum 1.5mm². Remove approximately 7mm of insulation from the conductor and screw the conductor into the L-N connector.

• Load

  The QDBC02SA provides only two DALI broadcast buses. The power supply for the lighting fixtures is provided outside the QDBC02SA. 

  No external power or 230Vac should be connected to the DALI buses! Connect the two wires intended for the DALI bus to the terminals of DA1 or DA2. Remove approximately 7mm of insulation from the cable and insert the cable into the terminals. Both solid and stranded wire between 0.5 – 1.5 mm2 can be used; with stranded wire, a screwdriver should be pressed against the terminal when inserting the wire. A maximum of 64 DALI lighting fixtures can be connected, distributed across the two DALI broadcast buses.

• SA-Inputs

  Remove approximately 7mm of insulation from the cable and insert the cable into terminals 1 to A. Both solid and stranded wire between 0.5 – 1.5 mm2 can be used; with stranded wire, use a screwdriver to push on the terminal while inserting the wire. Inputs 1&2 control outputs 1&2 respectively. Input A is default set as a scene input: pressing and releasing the button, which is connected to this input, after 0.7 seconds will turn all outputs off; pressing this same button for more than 3 seconds will turn all outputs on. To remove wires from the terminals, push down on the terminal with a screwdriver. The maximum wire length 

• Stand-alone LED feedback

  An external 5-24Vdc power supply can be connected to the QDBC02SA to provide LED feedback for the directly connected push buttons that directly control the two circuits. 

• Bus connection

  It is recommended to use the Qbus cable or any other cable with a minimum of 2 conductors of 1mm² as the bus cable. The green shielded EIB cable can also be used if the conductors are paired to achieve a minimum cross-section of 2 x 1mm².

Wiring diagram

• Stand-alone

  Multiple stand-alone modules can be linked together to the "All-OFF" / "Panic" button. 
• WithQbus Controller

  With bus system

• SA configuration (via the keys)

  1. You can access the Stand-Alone menu via the control buttons on the front of the module.
  2. The outputs are set by default with a minimum of 10% and without memory function. If you want to dim to 0% or use the memory function, you can set this by putting the module in configuration mode and pressing the buttons several times. This can be done as follows:
  3. 1) Turn off all outputs (= all orange LEDs are off).
  4. 2) Simultaneously press button 1 and 2 and keep them pressed => The red STATUS LED starts blinking at a particular pace.
  5. 3) The red STATUS LED on the module will blink rapidly for 5 seconds, and then begin to blink at a slower speed.
  6. 4) Once the STATUS LED has blinked slower several times, release 1 button and keep the 2nd pressed, allowing the LED to blink 2 more times before releasing the 2nd button.
  7. The red STATUS LED now continues to blink: the module is in configuration mode for 5 seconds or longer if changes are made.
  8. 5) The orange LED next to the push button lights up each time it is pressed. The table below shows the number of times the button must be pressed to achieve a desired setting. After no changes are made for 5 seconds, the configuration mode stops.

  Setting	Number of presses
  No minimumm dimming level	1
  Minimum dimming level 10% (default)	2
  Memory function OFF	3
  Memory function if last dimming level >20%	4

  If one of the buttons is pressed for 5 seconds during the configuration mode, the respective channel is reset to its default setting (see bold text in the table above). A successful RESET is indicated by the LED of that channel flashing QUICKLY 10 times. The configuration mode remains active for 5 seconds after the last adjustment; afterwards, all LEDs on the module flash quickly to indicate that the settings have been saved and the configuration mode has stopped.

• Via System Manager III

  Through the SMIII, you can configure each module via the bus. This is explained via our knowledge center.

  The Dali broadcast module controls, via 2 Qbus I/Os, 2 Dali buses. All Dali fixtures, regardless of their set address, will follow the status of the Qbus I/O. Typically, a Qbus dimmer output is used for this.

  After entering the serial number, the following screen appears:

  Using the "Read Status" button, you can read the current value of the I/Os.
   

  With the Up/Down buttons, you can control the I/Os online. A short click up or down will bring the I/O to the start value and off status, respectively.

  If you wish to configure this module to operate Stand-Alone, you can select this option at the top of the screen. You can then easily set all parameters in this way:

  Just like with the other Qbus Stand-Alone modules, if the module is used in Stand-Alone mode, the fifth input (Input A: All Off/On) will function as an All Off button (short press), and as a Panic Button with a long press. 
  Once the module is no longer used in Stand-Alone mode, meaning it is connected to a controller and receives power via the bus, the fifth input operates differently. A scene must be created through the System Manager and assigned to this input (on the “Input 5” field). A short press will then execute this scene. NOTE: with a long press, the next scene in the list of created scenes in the Qbus System Manager is automatically executed. Therefore, make sure to take this into account! 
  IMPORTANT: 
  - if multiple Stand-Alone modules are interconnected on this fifth input, a scene may be assigned to only one module – for all other connected modules, the scene input (Input 5) must remain empty! 
  - For the scenes used on the 5th input of SA modules, NO DELAY TIMES should be set at the scene level itself. Delay times are entered here in the module's screen.