Error 67 NO BMS in ESS system after replacing MPPT

Question

question

federicorossi asked Jan 19, '24

Error 67 NO BMS in ESS system after replacing MPPT

Greetings to the community!

I am seeking guidance on an issue we have encountered this week when replacing our charge controller with the new MPPT 250/70 in an ESS system. On the first day, everything worked perfectly, but since then, the system has not detected the charge controller, and locally we can verify ERROR 67 NO BMS.

What have we tried so far? (Many of these things we tried after reading forum posts)

Downgrade Cerbo to version 2.72.
Replace the ve.direct cable.
Redetect, restart, reboot.
Turn on / turn off MPPT with PV circuit breaker.
Reload ESS Assistant with VE.Configure

None of these solutions have resolved the problem.

The equipment includes:

Multiplus II 5000
Cerbo GX
2u Pylontech UP 5000
SmartSolar 250/75

Has anyone faced a similar situation or have any ideas on how to address this issue? We would greatly appreciate any advice or suggestions you can offer.

Thanks again!

Federico.

PS:

Images:

Today:

Yesterday

BMS Pylontech error

2 |3000

Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

Modifications Space

Node Red Space

Answer 1 · 2024-01-22T08:42:17Z

Thiemo van Engelen (Victron Energy staff) answered · Jan 22 at 08:42 AM

Hi @FedericoRossi

Please check the cable between the MPPT and the Cerbo as this could be caused by a communication problem between the Cerbo and the MPPT. Is the MPPT visible in the device list on the Cerbo?

Kind regards,

Thiemo van Engelen

2 |3000

Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

Answer 2 · 2024-01-23T20:37:06Z

federicorossi answered · Jan 23 at 08:37 PM

Hi @Thiemo van Engelen (Victron Energy staff) thank you for your quickly answer.

I attach a screenshot of Device List. The MPPT was detected the first day but now not anymore.

Any clues?

Regards,

Federico

1706042517244.png (41.3 KiB)

2 |3000

Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

Answer 3 · 2024-01-25T13:48:47Z

federicorossi answered · Jan 25 at 01:48 PM

@Thiemo van Engelen (Victron Energy staff)

Good morning, we have solved the problem.

The problem was in the RX PORT FUNCTION by default.

Victron Connect -> Access to MPPT via Bluetooth -> Config (3 dots) > Config > Rx options >

By default it is on "ON OFF Remote". Not working with that option.

Select the 2nd option and it will work fine.

I think it has do to with the new firmware because the previous MPPT was working perfectly.

Hope that this works for someone else!

Thanks

Federico.

1706190665202.png (11.8 KiB)

1706190814040.png (108.0 KiB)

1

2 |3000

Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

Thiemo van Engelen (Victron Energy staff) ♦ commented · Jan 26 at 10:11 AM

Hi @FedericoRossi

Good thing that you found the problem and that it is working now.

The "Remote On/Off" option is not the default for the MPPT so no idea what happened here.

Kind regards,

Thiemo van Engelen

0 ·

Answer 4 · 2024-01-27T13:11:13Z

federicorossi answered · Jan 27 at 01:11 PM

Hello!

I think that the last update turns that option into default, but not 100% sure.

Maybe the other cases in the forum can be solved checking this parameter!

2 |3000

Attachments: Up to 8 attachments (including images) can be used with a maximum of 190.8 MiB each and 286.6 MiB total.

question