question

nonop4 avatar image
nonop4 asked

HUB Pylontech problem, red light, CCL limit changing and battery error

Hello, after adding 4 US2000 Pylontech and HUB batteries for a total of 12 US2000 batteries, I have the following problem (see video)

Thank you.

https://www.youtube.com/watch?v=p5TrYf3VQJc


Pylontech
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17 Answers
Murray van Graan avatar image
Murray van Graan answered ·

Hi @nonop4. It seems two of the batteries are not communicating. Total discharge limit should be 300A (12x25A)

Also, set the system to keep batteries charged for about a day or two. This will let the batteries balance - it is a common error to see this when the bank is not balanced.

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nonop4 avatar image
nonop4 answered ·

OK, thanks,

But how do you identify the two batteries that are not communicating?

I already did a full charge for 3 days
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nonop4 avatar image
nonop4 answered ·

All the batteries are detected but it still does not work ?


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nonop4 avatar image
nonop4 answered ·
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nonop4 avatar image
nonop4 answered ·

when my two stacks of 6 batteries are in "0010" I no longer have a red led, but the power is limited to six batteries

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dgnevans avatar image
dgnevans answered ·

how many groups of batteries are you running. and what ADD have you set for each group ie.

group 1 ADD should be 0100 group 2 0010 group 3 0110 group 4 0001.
How have you connected the batteries communications to each.
Please refer to
https://www.rpc.com.au/pdf/pylontech_us2000_manual.pdf

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nonop4 avatar image
nonop4 answered ·

I have two groups of 6 batterries

group 1: 0100

group 2: 0010

Exactly like in this diagram:

capture-decran-2021-04-06-a-161049.png

img-3217.jpg

img-3218.jpg


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dgnevans avatar image
dgnevans answered ·

ok Great so you have the settings in place. What is the SOC on the groups of batteries? are some of them full while the others are charging? did this start straight away when you connected the batteries through the HUB? Are you running on grid or off grid? can you provide more information of your system?
From your video it appears that group 1 is giving you the issue. you could try and swap the order ie make one of the other batteries in the group the master for testing.

I had a similar issue. with an on grid system. after the system had been up and running for a few days I recevied an alarm Internal failure. After searching through the communicty, I found this string. where pylonttec had responded.

@2una Hi,Please try this: Load the ESS assistant and configure DVCC and ESS on the GX device. Select "Keep Batteries Charged" in the ESS mode setting. https://community.victronenergy.com/questions/42781/pylontech-alarm.html

I followed the above advise from Pylontech and have not had the error again.

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nonop4 avatar image
nonop4 answered ·

- The share is set at 40% minimum

- the 12 batteries are charged at the same time and this also discharges

- After adding the HUB and 4 additional batteries, the system never worked well (see my videos)

-the installation is on the three-phase network

- 3 Quattros 15000VA, 60 panels 375wcc 4 MPPT 250A, 12 pylontech US2000

img-2677.jpeg

img-2678.jpeg

- If I address 6 pylontech on 0100 all alone it works

- If I address the other 6 pylontech also in 0100 I have no error but the power is wrong (150A) I must have 300A


As soon as I address the 6 other pylontech in 0010 (in two) the HUB puts in red leds and error (see video)


I tested with another pylontech HUB, same problem

I tested in all directions for hours, addressing, wiring ect ...

IMPOSSIBLE


I do not know what to do ?


img-2677.jpeg (3.1 MiB)
img-2678.jpeg (2.5 MiB)
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Ned Yu (Pylontech) avatar image
Ned Yu (Pylontech) answered ·

Hi @nonop4. Thanks for providing the details information about your system.

This is should be a firmware issues.

As you can find that the LED light from the LV-HUB and CCL/DCL value from the CCGX is constantly jumping between two groups bank(12 batteries)and one bank(6 batteries) which means the communication is not stable.

I will send you the latest firmware and guide you to upgrade your equipment.

Best Regards

Ned

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nonop4 avatar image
nonop4 answered ·

OK,

Thank you very much, i have a cerbo gx touch on my installation.

all victron firmware are up to date (quatro, cerbo, MPPT)

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nonop4 avatar image
nonop4 answered ·

I received the RJ45 cable to connect to the HUB, it's just impossible, I tried with 3 different computers, I even cut and rewire the RJ 45 to be on the cable, I tried to reverse I try to lon in large it does not connect !

capture-decran-2021-04-12-a-161809.png

img-3233.jpeg

img-3234.jpg



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nonop4 avatar image
nonop4 answered ·

RJ45 DB9 USB BY Pylontechcapture-decran-2021-04-12-a-165248.png


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nonop4 avatar image
nonop4 answered ·

I find it quite incredible, to sell 12 US2000 batterries (12000 €) which does not work with the HUB (450 €) from the same manufacturer, I really hope to find an update solution that works.

The problem is all the same a little annoying ...

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support-1 avatar image
support-1 answered ·

I am having the same issues with almost the exact same configuration. With no end in site

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Chris avatar image
Chris answered ·

Me too - i think
10x US2000
2 stacks of 5 with the LV-Hub

LV-Hub Bin LED 2 Illuminated (no errors)

System only reporting 125A Charge / Discharge

All latest Victron Firmware
(batteries and hub are approx 12 months old, maybe slightly older - but have only just been installed)

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Rob Duthie avatar image
Rob Duthie answered ·

Hi

I have the update on the RS232 pinout and how to log into the LV Hub unit.

As i have a similar issues with 2 banks an LV Hub that drop the BMS signals.

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