Home fan speed setting using ACM-LV10

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marcfon
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Re: Home fan speed setting using ACM-LV10

Post by marcfon » Saturday 22 October 2016 20:12

Just a quick note to confirm the this PWM > Voltage converter works perfectly in combination the fibaro rgbw module. I've hooked it up to my Buva Boxstream ventilation system and everything works great.
buva_boxstream_fibaro_rgbw.jpg
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There was one important thing I had to do to make it work my case. I had to remove the RF module that was present in the Boxstream. I even called the manufacturer and he confirmed that the 0-10v steering can't be used in combination with the RF module.

sumo89
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Re: Home fan speed setting using ACM-LV10

Post by sumo89 » Saturday 05 November 2016 9:49

Hi!
I just bought a Fibaro RGBW myself, however, I'm not sure it's really working correctly... I'm also trying to control a fan (which might support PWM). But I see nothing on the outputs with a multimeter - should I be able to measure voltage between like "R" and ground with PWM? I also tried this setup with LEDs:
http://dreamgreenhouse.com/reviews/2014 ... /index.php

But nothing on the outputs. I've tried like 10 different options on parameter 14. Am I doing something wrong or is the RGBW broken? :)

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robgeerts
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Re: Home fan speed setting using ACM-LV10

Post by robgeerts » Thursday 02 March 2017 23:13

Could someone draw me picture of how you connect the ACM-LV10 to the buva ventilation?
Is there a solution a can keep using my main unit to control the ventilation system?
20170227_182237.jpg
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RayAmsterdam
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Re: RE: Re: Home fan speed setting using ACM-LV10

Post by RayAmsterdam » Friday 03 March 2017 22:39

robgeerts wrote:Could someone draw me picture of how you connect the ACM-LV10 to the buva ventilation?
Is there a solution a can keep using my main unit to control the ventilation system?
IMG_20170303_213540.jpg
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IMG_20170303_213540.jpg
IMG_20170303_213540.jpg (34.17 KiB) Viewed 1494 times
Use the same colors on the buva as the main unit. You cannot keep the main unit, as you replace it by the ACM-LV10.

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robgeerts
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Re: Home fan speed setting using ACM-LV10

Post by robgeerts » Friday 03 March 2017 23:05

Thank you very much!!
I was hoping there was a solution for keeping the main-unit but this will do it for the meantime!

Do you think it may be possible to connecting 'something' to the main unit wich sends a signal to Domoticz to control the ACM-LV10?
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Re: Home fan speed setting using ACM-LV10

Post by RayAmsterdam » Friday 03 March 2017 23:34

Maybe you could use a I2C ADC board, to convert the 0-10v from the main unit to I2C.

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robgeerts
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Re: Home fan speed setting using ACM-LV10

Post by robgeerts » Friday 03 March 2017 23:48

Ok, since I haven't got much knowledge of this kind of stuff, I dont think I will be able to fix this ;)
Does someone have experience with this?
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Re: Home fan speed setting using ACM-LV10

Post by MJvB » Friday 10 March 2017 15:50

Hi All!
I have the following situation:

I want to start with my central ventilation system via a KAKU control, preferably the ACM-LV10 and if possible withe the fully variable speed control.
The above posts are mentioning a newer type JE Storkair / Zehnder CFMeR system with the RF possibilty allready available from factory. I have an older JE Storkair / Zehnder CFMeR system with a little bit different board print layout. Does anyone know if my unit can support the ACM-LV10?

See the attached pic for my print layout.
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RayAmsterdam
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Re: RE: Re: Home fan speed setting using ACM-LV10

Post by RayAmsterdam » Friday 10 March 2017 15:53

MJvB wrote:Hi All!
I have the following situation:

I want to start with my central ventilation system via a KAKU control, preferably the ACM-LV10 and if possible withe the fully variable speed control.
The above posts are mentioning a newer type JE Storkair / Zehnder CFMeR system with the RF possibilty allready available from factory. I have an older JE Storkair / Zehnder CFMeR system with a little bit different board print layout. Does anyone know if my unit can support the ACM-LV10?

See the attached pic for my print layout.
What are the white, blue and red wires for? Are they going to the wall controll? If yes, chances are high this is the connector you'll have to use.

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Re: Home fan speed setting using ACM-LV10

Post by MJvB » Friday 10 March 2017 16:09

Well... my wall control is on the first floor ;) I will remove the control to see...

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Re: Home fan speed setting using ACM-LV10

Post by RayAmsterdam » Friday 10 March 2017 17:35

MJvB wrote:Well... my wall control is on the first floor ;) I will remove the control to see...
I've had a better look at your picture. The blue/white/red wires are your motor controll. Your wall controll is probably a turning knob and connected to the ventilation box with perilex. Unfortunately I don't see any way to connect the Kaku.

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Re: Home fan speed setting using ACM-LV10

Post by MJvB » Friday 10 March 2017 21:05

Ok.. that's a pity. I wil try the solution by adding a KAKU switch on the perilex than.

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Re: Home fan speed setting using ACM-LV10

Post by m00st » Tuesday 04 April 2017 22:01

I have a BUVA Q-stream installed in my home. While every living / sleeping room has it's own control panel showing the time and CO2 levels, driving the FAN speed at high CO2 levels, it never hurts to have a little extra control via Domoticz :D

The room control units use KNX RF for which I do not know a way to control via Domoticz. So I opened up the control unit, noticing a 0 - 10v input. I wasn't sure i could control the unit via an ACM-LV10 while maintaining the fancy room control in parallel. So I sent a mail to the manufacturer. Fortunately, they were quite helpful and fast in their response as well. So I now have an ACM-LV10 driving the extra input of the Q-stream unit. Now I need to implement a humidity sensor in the bathroom for starting up the fan and perhaps a switch in the toilet..

Here's a quick video demonstrating things:

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Re: Home fan speed setting using ACM-LV10

Post by MindBender » Friday 25 August 2017 10:01

joostvanderlinde wrote:
Thursday 10 September 2015 14:06
If you use the 0-10V terminals, you MUST DISCONNECT the original RF unit.
There is an explicit warning about that in the manual, so I did not try to use them in paralel.
Indeed, you cannot wire two 0-10V outputs together under one 0-10V input terminal. This is due to the nature of 0-10V outputs, which are able to source to 0-10V if the voltage on the input terminal is too low, but which are also able to sink to 0-10V if the voltage on the input terminal is too high. The latter is often implemented as a resistor between the 10 or 12V supply and the 0-10V input, to make sure that the device runs at full speed if nothing is connected. With this in mind, two 0-10V outputs wired together will short each other out if for example one is sourcing 9V and the other is sinking 5V, possibly damaging the output devices (but not the input device).

Fortunately, there is a solution for this: If we could somehow prevent 0-10V outputs from sinking, the output with the highest voltage would 'win'. This is what we want, and can easily be achieved with a couple of diodes. Wire each 0-10V output through a diode to the input, put a 1k resistor in parallel with the input to make sure some current is drawn and Bob's your uncle. There will be a 0.6V voltage drop across the diodes, but I guess 0-9.4V will do fine. Use schottky diodes if it isn't.

Alternatively, a Qubino 0-10V dimmer can be used. Besides a 0-10V output, this dimmer also has a 0-10V input, which can be used to connect the RF receiver to. This will however require some action from Domoticz to propagate the input to the output.

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Re: Home fan speed setting using ACM-LV10

Post by MindBender » Monday 18 September 2017 9:40

Below instructions to modify your ventilation unit to allow simultaneous remote and 0..10V control.

First remove the circuit board. Be careful here, because the main power supply capacitor carries 400V DC, for a long time after the unit has been unplugged! You can discharge it by shorting it (prepare for a spark!) or more gracefully using a multimeter with Low-Z voltage measurement.
Turn the board over and locate the 0..10V control terminal:
IMG_1899.JPG
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The terminal is squared in red. The red arrow below it indicates the trace carrying the fan control signal. The left hand side of the T-junction carries the control signal from the receiver, the right hand side the control signal from the terminal.

First cut this trace in two places, as shown below:
IMG_1900.JPG
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It is easier to make two adjacent cuts and remove the part in the middle to get enough clearance to prevent shorting both ends. Make sure not to loose this piece of copper on the board.

Now carefully scratch off the solder mask from the central tap of the T-junction:
IMG_1901.JPG
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Make sure the trace is really clean, shiny copper.

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Re: Home fan speed setting using ACM-LV10

Post by MindBender » Monday 18 September 2017 10:22

Now mount two diodes as shown here:
IMG_1902.JPG
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Please observe the polarity of the diodes: The cathodes of the diodes should be connected to the T-junction center tap.
You could use any small signal diode, like for example a 1N4148, but to prevent too much voltage drop loss across the diodes, it is preferable to use schottky diodes, such as a BAT42.
Optionally, you could attach a wire to the T-junction center tap, to connect to a 0..10V input your Z-Wave module may have. This allow you to read back the fan speed in case the remote control is setting a higher speed than the Z-Wave module.

A caveat with this modification is that the 12V supply on the terminal is really weak; My Qubino module only draws 50mA, but this is enough to make the supply voltage drop to 8V. This is really weird because 50mA @12V is only 0.6 Watt and it is hard to believe the power supply is designed with such a small load tolerance.

So I had to add an external 12V power supply I salvaged, just to power my Z-Wave. This will slightly increase power consumption and decrease efficiency, but I didn't see another way. Fully installed my setup now looks like this:
IMG_1907.JPG
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I hope this is useful to anybody else.

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