Questions and answers on "By-me home automation"

FAQ (Frequently Asked Questions)

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Is it advisable to use a support relay to disconnect the loads controlled by the Energy Management system?

No. On the whole range of relay actuators art.01456 and 14537, dedicated to energy management, the devices are equipped with the “zero crossing” function which improves the management of the disconnection, avoiding electric arc phenomena during relay switching. Moreover, the devices are equipped with a current sensor which, to be able to read the correct data, must be connected directly to the load and not to a support relay coil.


Can the differential current sensor art.01459 be installed on any device which allows the input of a current sensor?

No. The current sensor art.01459 can be installed only in art.01456, which manages it.

If I wish to monitor the consumption values of some household appliances do I always need the load control module 01455?

No. If you only need to measure the consumption of one or more loads, all that is required are articles which support the "current sensor" function, such as 01450, 01456, 01451 and flush mounting actuators 14537. To view and save the data, you will need a touchscreen and/or webserver type supervision device


Article 01455 is used to manage both the consumption and production of the energy system or is it also necessary to install arti

Article 01455 is designed for the inlet of three current sensors. This means that in a single phase system in which the production meter is at a maximum distance of 40 cm from the consumption meter, it is possible to use only art.01455 with two current sensors.
In three-phase systems or single phase systems with a production meter located in another room or at a distance of more than 40 cm, in addition to the load control module art.01455, you will also need meter art.01450.

Nei parametri dei misuratori sono presenti le seguenti voci: durata rinfresco misura, frequenza rinfresco misura. A cosa si r

Entrambe le voci si riferiscono alla possibilità di visualizzare il valore indicato nel misuratore in oggetto. Questo può avvenire sia da centrale che da uno dei dispositivi di visualizzazione (touchscreen). Dopo una pressione prolungata del misuratore, comparirà per un certo periodo il valore “durata rinfresco misura” e con una certa frequenza il valore “frequenza rinfresco misura”.

What to do if the displayed consumption and production data are incorrect?

First you need to check the various system coil connections are installed correctly: their label must always be facing the meter that is to be read.
Second, check the accuracy of the calibration values ​​entered in the "Sensor Setting/Calibration" menu.

What can I manage in the By-me system from the WebServer?

The WebServer allows complete supervision of all By-me home automation devices (lights, actuators, controllers, shutters, scenarios, climate control) and management of the By-me system burglar alarm (on/off, status, partial activation). In addition, the WebServer can configure up to eight IP cameras (Axis, Mobotix, generic cameras operating an RTSP stream) making them accessible on the web.

Is the EasyTool Professional software needed to configure the WebServer?

No, the WebServer is configured through any Pc with Google Chrome browser (ver. 14 or higher); the connection is made through a LAN or directly to the device using a cross cable. However, the EasyTool Professional software is necessary for importing the database from the By-me control panel and then for creating the .xml file for WebServer.

Can I connect the IR interface 14584.1//20584.1 to the BUS line of the sound system?

No, this device must be connected to the home automation BUS line and configured in a group with the sound system menu.

What is the item 01904 used for?

Item 01904 is a shunt branch for the sound system which allows you to create an additional branch to the principal line if required.

What is the maximum number of sound devices installable in one system?

A system can manage up to 32 devices.

Does the last device on the BUS line of the sound system have to be terminated?

Yes, devices at the ends of sound system branches must be terminated via the special termination jumpers present on every device.

Which cable do I use for the BUS of the sound system?

The cable for this system is part no. 01840.B.

Can I use a 10+10 W amplifier with 3W speakers?

Yes, it is possible to combine amplifier 01901 to speakers 20587.

Can I use a 1+1W amplifier with 10W speakers?

Yes, it is possible to combine amplifier 20581 to speakers 20588.

What is the item 20580 used for?

The 20580 power supply can power the flush mounted amplifier part no. 20581 without burdening the main BUS 01801 power supply.

Can I bind 2 zones to a single amplifier?

No, every zone is managed by a single amplifier.

How many sources can I use on the same system?

The maximum number of sources permitted in the system is 4.

Can I activate the sound system in a scenario?

Yes, if an audio zone is included in a scenario, the system activates the area with the preset volume and station when the scenario is called.

What is the "Sleep" function?

The "Sleep" function, programmable on the 20581 controls, allows the system to turn off automatically after a time set by the user.

What is the "Snooze" function?

The sound system can activate particular audio zones at specific time and, as with any common alarm clock, you can press an icon which temporarily turns off (about 8min) the audio, resuming normally afterwards. This function is only available on 3 and 4+4 module Touch pad.

How many home automation devices can I connect to the BUS terminal of sound system amplifiers (20581/14581, 01901)?

The dedicated "BUS" terminal on the amplifiers can connect up to 3 By-me home automation devices .

How many home automation devices can I connect to the output of 01903?

There is a "BUS" terminal on this devices dedicated to the creation of a small home automation branch with a maximum of 10 By-me devices.

What is the maximum distance between the amplifier 14581, 20581 and the speakers 20587?

The maximum distance between the speaker and amplifier depends on the cable section used. With a 1.5 mm cable, the distance can be up to 30 m, while the maximum distance drops to 10 m for a 1 mm cable.

What is the maximum distance between the amplifier 01901 and the speakers 20588?

The maximum distance between the speaker and amplifier depends on the cable section used. With a 1.5 mm cable, the distance can be up to 30 m, while the maximum distance drops to 10 m for a 1 mm cable.

Can I connect just one speaker to amplifiers 01901, 14581, 20581?

Yes, in this case you must terminate the unused amplifier channel with a 100 Ohm 1Watt resistance.

Is the layout structure of the sound system the same as the home automation line?

No, sound devices require in-out type wiring. The SAI and home automation devices do not require a particular topological structure.

Can I avoid installing the line decoupler 01902 on a sound system?

No, the device is required to ensure the transmission of the audio data.

Can I associate the same partition to multiple activation points?

Yes, you can bind the same partition to multiple activation devices so that you can control it from several points associated to zones in the system.

Can I remove the By-me control unit after I have programmed the Touch pad?

It is only and exclusively possible in the case where there is a burglar alarm system line and thermostats used in centralized mode are not installed.

Can you always keep the LED of an external scenario activation button on or off?

No, the button LED will go off after 3 seconds of pressing the button, and it can't be set differently.

What cable should be used for By-me?

For connections, use the sheathed twisted pair Vimar part no. 01840 (2x0.5mm², rated insulation voltage 300/500 V, WITHOUT SHOES). If you are not using a suitable cable with the same electrical characteristics, you will very likely encounter several different and serious malfunctions, both during configuration and normal management of the system.

Is the By-me BUS polarized?

Yes, you need to respect the polarity when wiring

How can the 2 thresholds de set, time threshold and switch-off priority on load control 01455 with a 3KW contract?

Set Threshold-1 equal to the rated power of the counter contract, plus 10%. Set Threshold-2 equal to Threshold-1 plus 20% of the same Threshold-1. Set the Threshold Time to 90 minutes. For a 3KW contract therefore it will be Threshold-1=3.3KW, Threshold-2=4KW, Threshold Time=90 min. However, the values​must always be verified according to the conditions stated by the service provider.

It is also possible to define the priority of disconnection the configured loads (Max 16) or decide to always leave them On or Off (forcing). All of these parameters can be set by the By-me control panel in the Setup menu in the "Load Control" section as well as the override mode that can be automatic or manual.