Date Description Downloads
2015-11-19 Compact size
1.- Compact size

All actuators from the µBrick series stand out for their extremely compact design; as a result, they are the smallest of their kind.



In this tutorial we would like to emphasize with a couple of examples the advantages of their small size:



1.1 Solution for space constraints in distribution boards (DIN rail)

In the next illustration we can see 3 examples of how to use the µBrick o18 to achieve a maximum of 4,5 outputs per DIN rail unit in 12 units:

•    Example 1: 54 loads (ON/OFF)
•    Example 2: 27 blind/shutter drives
•    Example 3: 22 loads (ON/OFF) and 16 blind/shutter drives



The µBrick is the only actuator that can fit as many features in as little space.


1.2 Solution for space constraints in wall boxes

1.2.1 Advantages of a distributed installation in a room

Thanks to its optimized design and the number of inputs and outputs available, the µBrick io66 can meet the most common needs in a standard room.

On top of that, we would like to highlight the fact that each and every binary input can be doubled (by means of the application program and a 2,7k ohm resistor) so as to connect, for instance, contacts for technical alarms or binary toggle functions. This way, we can have up to 12 inputs in the µBrick io66.




1.2.2 Advantages of a distributed installation in a home

The different µBrick versions available can be combined in order to connect and control most of the functionality in a house at optimal cost:

-    Lighting circuits
-    Blinds/shutters
-    Temperature probes
-    Radiators
-    Presence detectors
-    Window contacts
-    Water leak sensors
-    Smoke sensors, etc.

In addition to the actuator's low price, substantial savings can be achieved in all the project lots: ducts, electrical wiring, sensor wiring, distribution boards and skilled labour.






1.2.3 Advantages of a distributed installation in façades

In those façades where we come up with several blinds/shutters and/or awnings, the µBrick can be very useful to avoid long cable runs. By placing a µBrick o18 in a wall box in/close to the façade (instead of a central distribution board), we can control up to 9 drives.


DOWNLOAD DIAGRAMS:

µBrick distribution boards

µBrick wall box

µBrick false ceiling

DOWNLOAD ETS3 PROJECT:

µBrick wall box

DOWNLOAD ETS4 PROJECT:

µ Brick wall box
2015-11-18 Analogue signals processing
2.- Analogue signals processing

The only KNX actuator with so many possibilities for the processing of analogue signals.



Most KNX actuators available nowadays can either not process analogue signals or they support a very small number of them, also very limited as regarding the data point types.

However, analogue signals can be extremely useful in the everyday operation of a KNX system!

As we can see in the picture, µBrick actuators can receive both via their own inputs and the KNX bus a large number of analogue signals.

On top of that, the µBrick allows final users to interact and modify many factors, such as setpoints, thresholds, hysteresis, etc.

Let us now see two practical cases:


2.1 The weather station becomes a sheer measurement sensor. No more limits!

Up to now, if we wanted to act on and react upon relevant weather phenomena, we needed a KNX weather station. Nevertheless, these are usually limited as regards the number of thresholds, functions and interoperability with the final user.

With the µBrick actuators, possibilities get exponentially higher! Each µBrick offers over 60 functions for analogue signal processing (20 logic functions, 30 setpoints, 10 advanced scenes, 8 alarms). All these can be configured with the most common DPTs (including 4 bytes).

Making use of the µBrick's alarms and setpoints, we can achieve the optimal control of a blind/shutter + awning, as we can see next:




We are looking at numerous weather phenomena that can determine the blocking and/or positioning/movement of a a blind/shutter or awning. The µBrick's application allows pondering them all and defining priorities depending on their relevance. A very advanced logic control that has been simplified for KNX integrators as never before.


2.2 Energy efficiency with µBrick

The µBrick is one of the few KNX actuators that support the processing of analogue signals with the energy and power data point types.

From an energy counter, either KNX or standard (connected to the inputs of a µBrick io66), you can send power (kW) and/or consumption data (kWh) to the µBrick actuator to achieve a smart load reduction (once certain thresholds have been exceeded).

Imagine all the practical applications! From reducing the setpoint values of air conditioning systems to turning loads completely off.



Particularly, in those cases where a time discrimination fee is available, the goal is to perform a series of smart switching commands based on off-peak and peak times. Of course, in the simplest possible manner for the final user.

To make this possible, we combine the load control (via the µBrick alarms, setpoints, enable/disable functions, logic functions, timers, etc.) with time switch.

DOWNLOAD DIAGRAMS:

µBrick analogue signals

µBrick alarm management

µBrick energy management
2015-11-17 Advanced KNX Scenes
3.- Advanced KNX Scenes

Apart from the 10 classic KNX scenes, the µBrick actuators have 10 KNX advanced scenes. So much added flexibility!

What makes "Advanced scenes" different?

A.- It is possible to insert delays between events of up to 255 hours between each one of them!! For instance, we often come across long-duration cyclic timer events (automatic irrigation systems, purge water valve...). Create unique time-based effects in your KNX scenes.

B.- The trigger can be from 1 bit to 4 bytes.

C.- Different values can be established for the following:

Play: it can be very useful, for instance, that a scene is reproduced when a certain temperature is reached.

Record: it is possible to save the scene with any desired value (and not limited to the value of the 1 byte object, characteristic of the KNX scenes).

Restore: Unique in KNX! The µBrick remembers the status of the events involved in the scene at every moment in time so as to be able to restore the value previous to the scene reproduction. For instance:
- the intrusion alarm goes off and the associated scene is reproduced (turning on all the lights in the house, moving down the blinds, etc.).
- In our example, it was a false alarm, very frequent in many homes.
- Once the alarm is over, we can go back to the status previous to the alarm. Up to now, this was not feasible with any of the KNX existing devices!

Stop: if we have introduced delays between events, it is possible that it takes a while for a scene to execute completely; therefore, it is important to be able to cancel it when necessary.

Let us see a practical case applied to a Cinema Mode::



For instance, using two advanced scenes, that are reproduced simultaneously, we can easily control an ambiance that includes: different RGB scenarios, the positioning of blinds/curtains, projection screen, etc.

DOWNLOAD DIAGRAM:

µBrick scenes

DOWNLOAD ETS3 PROJECT:

µBrick scenes

DOWNLOAD ETS4 PROJECT:

µ Brick scenes
2015-11-16 Timers: function
4. - Timers: function"Staircase with warning pulse"

The µBrick actuators have all the basic functionality of KNX timers, as included in other actuators: delay, staircase, blinking, etc.

Nevertheless, the goal of this tutorial is to emphasize the functionality of the Staircase with warning pulse: to the staircase function (delayed ON), IPAS has added the following:

1.- the possibility to modify the staircase time:
•    either via 1 byte communication object,
•    by multiplying pulses (the staircase time is multiplied by the number of consecutive ON received),
•    or via retriggering (with or without multiplication) the staircase time.

2.- a warning before the staircase time is over (creating a pulse with a switching sequence by using the same or even a different output!)

So as to illustrate this function, we will use the example of a tennis court.



The receptionist of the tennis club can very easily manage the ON time of the tennis court's floodlights:

- Each time the receptionist presses the relevant button, the floodlights go ON for 30 minutes. With several presses, the time increases correspondingly.

- Moreover, a red warning light has been installed in the court (in this case, having the floodlights blink would be impossible) and another one in a panel located at the reception desk. Both lights turn ON automatically 10 minutes before the established time elapses so as to warn players (and also clients waiting to enter the court) that the booked time is about to finish.

This can be done in an easy and cost-effective way with a µBrick io66; no need for a KNX visualization or additional time switches.

DOWNLOAD DIAGRAM:

µBrick staircase with warning

DOWNLOAD ETS3 PROJECT:

µBrick staircase with warning

DOWNLOAD ETS4 PROJECT:

µBrick staircase with warning
2015-11-15 Solution for hotels with fan coils units
5.- Solution for hotels with fan coils units

When it comes to KNX systems in hotels, even those with fan coil air conditioning, do not hesitate to use any of the actuators of the µBrick series. They provide a cost-effective and optimized solution for a decentralized installation in each room.

For instance, using a µBrick o12 you can carry out the full control of a traditional hotel room, that usually includes:
- 6 lights
- 1 blind/shutter
- 1 fan coil unit

Since it is difficult to find another KNX switching actuator that includes the possibility to control fan coil units, we would like to highlight this functionality here:

5.1 Sending the signals from the KNX thermostat

A KNX thermostat is required in order to do the PI calculation and have it sent to the µBrick actuator. Such a thermostat has the necessary buttons for the optimal control of a fan coil unit (ON/OFF, switch between automatic/manual, manual fan speed I, II and II, temperature UP/DOWN).


5.2 µBrick actuator to control de fan coil unit

The µBrick actuator is able to receive the above mentioned signals to control the fan coil unit optimally.

The fan speed varies automatically depending on the received PI signal (unless a speed has been established manually at an earlier point in time).

On top of that, the µBrick undertakes the calculation of the pulse width modulation (PWM) with the PI signal received to open and close the fan coil valve in a smart way.

You can control up to 4 fan coil units with only a µBrick o18!!!


DOWNLOAD DIAGRAM:

µBrick fancoil for hotels

DOWNLOAD ETS3 PROJECT:

µBrick Fan Coil

DOWNLOAD ETS4 PROJECT:

µBrick Fan Coil





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