VRM not showing total solar from all MPPT connected

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sydasssy asked Apr 28, '24

VRM not showing total solar from all MPPT connected

I have 10x MPPT connected through USB hub, in the VRM I see just the total of the generated power from the first 4

The sum doesn't include the rest of the units. Any hints?

Check pictures attached

MPPT Controllers cerbo gx VRM MPPT SmartSolar

1000185484.jpg (549.9 KiB)

1000185486.jpg (754.2 KiB)

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Answer 1 · 2024-04-28T08:10:07Z

duivert answered · Apr 28 at 08:10 AM

The system sees it as DC power, question is why

What is connected to DC power?

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Answer 2 · 2024-04-28T09:54:52Z

sydasssy answered · Apr 28 at 09:54 AM

Even in list of devices I can only see the first 4

1000185542.jpg (314.4 KiB)

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duivert commented · Apr 28 at 10:30 AM

Thats why its only calculating 4

strange on VRM you can see 10, are they also in VRM device list? What type of gx are you using?

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Answer 3 · 2024-04-28T13:07:46Z

sydasssy answered · Apr 28 at 01:07 PM

Nop

On VRM not available in device list

1000185627.jpg (567.2 KiB)

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Answer 4 · 2024-04-28T13:34:55Z

JohnC answered · Apr 28 at 01:34 PM

@SyDasssy

All through a usb hub. And dying progressively. Look there first.

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Answer 5 · 2024-04-28T17:12:43Z

sydasssy answered · Apr 28 at 05:12 PM

Solution ?

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Answer 6 · 2024-04-29T03:44:03Z

JohnC answered · Apr 29 at 03:44 AM

@SyDasssy

Victron have always recommended a quality, powered usb hub. 'Inadequate' devices are available aplenty and can give issues like this. Big price differences in the market, but this isn't a bank of phone chargers, it's all-out data. Your 'Last Seen' messages also suggest long term data breaks.

You didn't answer the question about GX type, but there are some that would gag on a data load like that. Often accompanied by Wait or Busy messages. But anyways might benefit from a firmware update if you haven't done so already. A reboot of the GX often helps if something's corrupted.

The usb hub seems the most likely offender to me..

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Answer 7 · 2024-04-29T06:22:37Z

sydasssy answered · Apr 29 at 06:22 AM

Hi, it's a cerbo GX, everything was working fine before, have latest firmware and tried rebooting without success...

Which USB hub would you recommend?

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JohnC ♦ commented · Apr 29 at 07:29 AM

@SyDasssy

I can't help there, maybe someone else? Or Google. Victron use USB 2.0, so something good for that..

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Answer 8 · 2024-04-29T07:58:10Z

duivert answered · Apr 29 at 07:58 AM

yes its probaply that, a defect usb hub

the cerbo can max handle 15 VE direct devices, so also check if you dont exceeded that amount

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