Pylontech

Hi There,

This might be quite elementary to solve, however I keep getting high voltage alarms from the Pylontech battery at times of high solar yield.

What can be done to solve the problem. The alarms tend to show up at voltages below the recommended charge voltage settings, ie max voltage for absorption charging 53.2V and Float 53V in accordance with the manual.

I have downloaded logs for some of the alarm events, these can be found at the following link.

https://drive.google.com/open?id=19c45KZUPvGrVP4q_MgFSeSdjDPtzZu3r

Where could the alarm be triggered and why, and how could the setup/settings be changed to avoid or reduce the alarm event. At present it is a once a week occurrence.

Best Regards

Riaan

I currently have 5KVA Multiplus with a 150/70 VE.Can MPPT charge controller using ESS with CCGX.

My current VRLA batteries are in need of replacement and was looking at replacing them with Pylontech US2000B or US3000 batteries. According to this article its not possible

https://www.victronenergy.com/live/battery_compatibility:pylontech_phantom

Is this still that case as it its not possible at all or are there limitations?

I have a second inverter that I intend installing the Pylontech Lithium batteries

However, the bluesolar MPPT 150/85 charger does not have a VE direct port.

Is there a solution to connects via VE Can port to the CCGX such that it will work with the Pylontech?

So far all the information refers to connection via VE direct

I have 3 Pylontech US2000 Plus connected in parallel with a MultiPlus 48/3000/35 and a MPPT 150/45.

The CCL is set at 30A by the battery, is this because the MultiPlus can only charge with 35A and the battery knows this? I haven't connected the PV panels yet but when I do should I see this value raise to 75A as the MPPT can provide an extra 45A?

The DCL is set to 75A so I'm assuming that all 3 batteries are being detected and everything in the setup is fine. Any comments welcome please and thank you.

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Hi all

Seem to have read that you need to tell the batteries who the master is and the slaves in the string,

For this to happen you flip the dip switches?

Can someone indicate what the master should be set to and the slaves?

thanks

G

I have some questions about a Pylontech setup.

Today I have the following, (not yet installed):

1 Pylontech US2000

1 Venus GX

1 Venus GX Temperature Sensor

1 BMV-712

1 SmartSolar MPPT 250/100

1 Orion-TR 48/12-9

The battery will sometimes be below the temperature for charging and I want to make sure that it will not get charged then.

Do the BMV add any value and more features than just using the Pylontech BMS with Venus GX?

If I do need this can I use the Venus GX temperature sensor, will that send the temperature to the MPPT?

We have multiple pylontech batteries that never ridge float state and the BMS always report 99% charged. It jump between charging/discharging and never get to a state where it float.

It's in an backup system and setting have been confirmed as per Victron guide for the Pylontech.

I have installed a Victron Easy Solar 5000 with two Pylontech US3000 batteries and 12x330 canadian solar panels.

In the beginning the system produced up to 3800 w of power but is seems the installer limited the PV to first 1600 w and then to 2600W.

What would be the reason be for this , since I need more PV for my house at midday.

When I asked the installer his reply was that I need to install more batteries then he can "open up" the system. This seems to me not right.

Hello to all,

this is the first time that i use pylontech batteries.

I build a system from 5 US2000 Plus Batteries, a MultiPlus 48/5000/70 and a Color Control.

There are two things that i don`t understand and i hope you can help me.

I charge the battery with the recommended absorption voltage from 53,2V. I get from the battery the warning "Voltage to high". I reduce this voltage step by strep from 53,2 V to last test of 51,8 V. But i get in every absorption phase the warning "Voltage to high". The datasheet from pylontech shows a value from max 53,5V.

Because of this error message i write to Pylontech, but i get no answer.

The other thing is a little funny.

When the battery is discharge and i start to load the battery, the load voltage and current are like the bulk phase but the MultiPlus shows at the LED float. I switch the Multi off and on again, the charge starts with the same voltage and current but the LED shows bulk.

Did you have any idea whats is the cause and i can do?

When you need more information to help, i can give.

Many thanks in advance.

Setup:

Victron Multi Plus 48/3000

Color Control

2 x Pylontech 2000 Batteries

Smart Solar 150/35

I configured my Setup with the help of this victron offical tutorial https://www.victronenergy.com/live/battery_compatibility:pylontech_phantom

Problem:

Multi Plus shows always "Battery low voltage" warning.

Question:

What could i have done wrong ?

Thanks for the support

Hello,

in the Victron product compatibility-list the pylontech batteries are listed to only can be used in an ESS-system. I think this is necessary of the CAN.Bus-Communication. This means that communication only works with the ESS assistant (why)?

I have to wait further 6 months for grid-connection to be built. For that time I want to build a small DC-Coupled PV and a Multiplus with Pylontech-Batteries. A big AC-coupled 30kWp-PV will follow next year. Since I wanted to install a Victron-ESS anyway I am wondering if I could use the pylontech also in an offgrid installation until the grid is ready?
Alternatively I wanted to install the ESS-Assistant offgrid and hoped i can use the pylontech without discharging them to 0% when grid isn't available at no time. I also don't know if a generator would be accepted in the AC-In then when a grid code has to be chosen.

I red that ESS shouldn't be used in an offgrid-installation neither. I know that ESS doesn't make sense in that situation, but it has du be used to use the pylontechs?
So is there a solution to use these components until grid will be available?

Thank you!

I`ve got an problem with DVCC on while charging the batteries. My system: Multigrid 48/3000/35-50 with Venus GX and two connected Pylontech US2000 Plus. A BlueSolar 150/35 is DC- connected to the Multigrid. My Fronius Primo 3.0-1 is AC- connected to the output 1 of the Multigrid. The gridmeter is an ET340. The system work fine. But if i activate DVCC the charging current will slow down to about 20A and the excess of energy is load to the grid. If i deactivate DVCC the full energy (about 30A) is load to the batteries. I want to load all the energy to the batteries. All firmware is up to date. Whats the problem?

Hello, I have Pylontech US2000 unit and I want to connect the VENUS GX via the CAN-Bus-cable to the Pylontech unit for the following purposes

- See the charging Level of the Pylontech via Internet (Victron Cloud)

- use the Venus for switching relais according the charging state/Level of the Pylontech for at least one external load

- is it possible to switch more than load according to the charging state (eg. Load 1 at 50% load , load 2 at 70% load??)

I`ve got an question about gridfailure and disabled Fronius PV- Inverter AC1- coupled.

My system: Multigrid 48/3000/35-50 with Venus GX and two connected Pylontech US2000 Plus. A BlueSolar 150/35 is DC- connected to the Multigrid. My Fronius Primo 3.0-1 is AC-1 connected to the output 1 of the Multigrid. The gridmeter is an ET340. All firmwares are up to date.

Today our grid in the village is running at APU by the energy supplier because of repair. They`re setting up the grid frequency to 51,7Hz for turning off all the PV`s in the village. The Multigrid detect a grid failure and disconnected to grid. At AC-1 output the frequency is 53,0Hz and the Fronius is switched off. Shouldn`t it use the Fronius energy to charge the batteries by Multigrids internal charger? What`s the reason of this reaction?

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Strange Voltage Values and Cut Off ESS System (Multiplus, Pylontech, Smart Solar)

Hello Community,

Setup:

Victron Multi Plus 48/3000

Color Control

2 x Pylontech 2000 Batteries

Smart Solar 150/35

Im using 35mm^2 Cables with a length of 1m. The temperature is 15°C.

I configured my Setup with the help of this victron offical tutorial https://www.victronenergy.com/live/battery_compatibility:pylontech_phantom

Problem:

Multi Plus shows often the "Battery low voltage" warning. Especially when I have higher loads the Battery Voltage drops and the Multi Plus cuts off the batteries.

Also very strange --> Smart Solar and Pylontech BMS show both the same voltage, but Multiplus shows a different voltage value.

This setup worked for over month pretty well, but since 5 days there are these mentioned problems and the battery voltages "fluctuates".

I tried so far to reset the batteries and to program the MultiPlus / ESS again. I thought maybe its better to set the dynamic cut off values in an other way than from Victron suggested, but I don't think this would help, because sometimes the battery voltage drops to 42,7V.

Question:

What could i have done wrong ?

Thanks for the support

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I am using these instructions to configure my pylons with mt three phase MPII setup: https://www.victronenergy.com/live/battery_compatibility:pylontech_phantom

Section 5 mentions a "DVCC" setting, but i am not able to find it on my VenusGX:

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Is this a critical part or not? i was able to successfully link my pylons and i even got the battery on my overview screen, it also showed the SOC, all of this without me setting the DVCC to on as i do not have that option.

Should i be worried?

Dear Victron People,

Set-up: 5 kW 48 V Multi (2624430); CCGX (v2.22) ; 2 x SmartSolar Chargers MPPT (v1.37) and 4 x Pylontech US2000 batteries. ESS in Optimized (with BatteryLife) mode and Feed-in excess sloarcharger power enabled.

When Grid setpoint at 50 W a small amount of PV power is used to keep the batteries charged and the available PV power is not used to supply AC load or feed into the grid. Effectively the PV power is disabled.

I can only circumvent this by setting the Gird setpoint to a negative value equivalent to the available PV power. The Multi then inverts this amount of power to AC as grid feed-in using the PV power available and when not enough PV power at the time, by discharging the batteries until the Minimum SOC is reached. The PV power (and sometimes AC power!) is then used to recharge the batteries (but not to 100 %) and the cycle then repeats.

My understanding is that when ESS operates correctly the PV power should first be used to supply the AC load, then charge the batteries and then feed into the grid. I am migrating my systems to not grid-tie but not working.

It appears that the CCGX malfunctioning.

Is there another possible reason for this aberrant behaviour?