question

cagataysahinoglu asked Jan 17, '23

Charger Communication Error

Hello,

I'm getting a charger communication error. Charger disconnects at night.

After then I reboot system, system shows me #67 error code and charger come back.

What can I do for this problem?

BMS charger communication protocol

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klim8skeptic ♦ commented · Jan 17, 2023 at 08:55 AM

It is not clear from your post what model chargers you are using.

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cagataysahinoglu klim8skeptic ♦ commented · Jan 17, 2023 at 09:52 AM

We are using smart solar charge controller MPPT 250/100.

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klim8skeptic ♦ cagataysahinoglu commented · Jan 17, 2023 at 10:15 AM

@cagatay.sa hinoglu Communication via VE Can or VE Direct?

Seeing as it looses coms at night, is there battery voltage present at night on the mppt battery terminals?

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cagataysahinoglu klim8skeptic ♦ commented · Jan 17, 2023 at 10:45 AM

We have 3 chargers. In the middle of the day we have same problem. Charger-1 via VE.direct, other chargers via ve.direct to usb.

In the same time battery voltage is good.

Communication comes back when I reboot the system anyway. It means there isn't any problem with voltage, is it? I think, It's a communication problem. But communication cables are good. Is there any possibility there is problem with venus?

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klim8skeptic ♦ cagataysahinoglu commented · Jan 17, 2023 at 12:11 PM

It is looking like a comms problem with the 2 mppt's connected to the usb hub.

Is the BMV connected via VE Direct?

I would try another usb hub. Powered??

Venus GX, or CCGX?

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cagataysahinoglu klim8skeptic ♦ commented · Jan 17, 2023 at 02:54 PM

Thank you. I will check and try to change usb hub.

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