Electrical connection to the float LED 100/30.

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simonosteopath asked Jun 8, '22

Electrical connection to the float LED 100/30.

Hi, my first entry to this forum.

I would like to be able to access the electrical connection to the Float LED or, be able to have a signal indicating the unit has gone into Float. I have a Blue Solar 100/30. This is for a charge monitor project. Maybe the signal is available via the VE direct port, but it seems an extravagant route. The unit appears un-openable without destruction. Has anyone managed this?

Thanks for any response.

monitoring

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Modifications Space

Node Red Space

Answer 1 · 2022-06-08T17:21:15Z

Stefanie (Victron Energy Staff) answered · Jun 08, 2022 at 05:21 PM

Hi @Simonosteopath

It's not possible to open the unit.

If you have a GX device, you could use Venus OS large, which includes Node-RED. Setting this up takes only seconds to read the charge state. See screenshot:

bildschirmfoto-2022-06-08-um-191845.png (428.2 KiB)

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simonosteopath commented · Jun 08, 2022 at 07:04 PM

Thank you, Stefanie, for your speedy response. The project I am building will not be able to use a computer. Unfortunately there just isn't the space and it seems a "hammer to crack a wall nut" kind of solution, just to obtain a '1' or a '0'. I was hoping for a hardware solution or maybe simple digital electronics from the ve direct interface. But thank you.

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Answer 2 · 2022-06-08T22:13:35Z

Sarah answered · Jun 08, 2022 at 10:13 PM

Hi @Simonosteopath

Some of the larger MPPT controllers (150/45 and above) that have an onboard relay can be configured to be activated when the controller reaches the float stage. See spec pagehttps://www.victronenergy.com.au/upload/documents/Datasheet-BlueSolar-and-SmartSolar-charge-controller-overview-EN-.pdf

f202e4d3-9c87-410e-87c9-b399ad932ffb.jpeg (115.8 KiB)

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Answer 3 · 2022-07-31T11:36:43Z

pvpax answered · Jul 31, 2022 at 11:36 AM

Suggestion: "read" the LED status with a photodiode or LDR.

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Answer 4 · 2022-07-31T16:50:00Z

johanndo answered · Jul 31, 2022 at 04:50 PM

You can add a photo transistor on top of the LED if you need a electrical signal, easy, isnt it? Additionally you can read the Ve.Direct interface, you get all the data there. Some have a programmable output / relay, you can use this as well.

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