Ek het die volgende stelsel en wil graag weet watter basiese settings ek op my inverter moet verander om mee te begin.

Wat ek het is die Axpert 5 kva Inverter, Pylontek 3.5 kw battery en 9 Canadian Solar 330 W panele wat ek in 'n 3x3 array gaan koppel.

Die idee is om die minste Eskom krag te gebruik aan die einde van die dag. Vrou is by die huis en huiswerk kan gedoen word met sonkrag.

Dankie by voorbaat.

Hi Kobus 

have a look in the download section there is a Axpert Guide I wrote a year or so ago (it needs updating).

With a 3.5kW Pylontech the max charging rate is 37A. Since the Axpert can only be set in graduation of 10A that limits you to 30A.  So setting 2 and 11 should not be above 30A. Further the settings are exactly the same as the settings for US2000B below.

Thank you Chris, will start off with these setting and see how it behaves.

Also bought the ICC software to monitor and see what is happening.

@Chris Hobson quick question since you seem to have most hands on experience with Axpert/Pylontech/ICC.

(How) does ICC interact with multiple Pylontech batteries?

I've got two US3000 and connected with cable they offer for pylontech kit. 

 

But their software only shows one battery is connected .... and i cant really figure out have i missed something with setup / connection

 

 

Hi Padwan ensure that the ICC cable goes in to the master battery. There may be the need to update ICC to get the correct info from 3000Bs. Chat to Manie.

Addition: Ok I can see you have your cables inserted correctly. Missed the cable initially.

43 minutes ago, Chris Hobson said:

There may be the need to update ICC to get the correct info from 3000Bs. Chat to Manie.

swt thx, ill hit him up on icc email .. not sure if he still swings around here ?

 

SOLUTION:

So this was all part of confusion on my part. After reading the pylontech setup manual again,  i've changed ADD dip switches to 0000 on master and slave battery.

This change has enabled ICC to read both batteries stats, and looks all is in order now. 

Thank you @Chris Hobson  and @Manie

Hi all - not fully up to speed yet with Lithium Ion or specifically Pylontech, but I was told that for the Axpert inverters you cannot just 'plug-in' the Pylontech batteries, but that one needs some kind of external 'control box'? But looking at the discussion above, it seems you can connect Pylontech directly to Axpert?

Is this correct?  

3 hours ago, Tobs said:

I was told that for the Axpert inverters you cannot just 'plug-in' the Pylontech batteries

For one specific case so far, you can: very recently manufactured Axpert VM IIIs will talk directly to the Pylontech battery with a suitable cable, and presumably gets accurate SOC readings as a result. These models come with firmware that has a "PyL" option for setting 05, Battery Type.

For ALL other models, if they are compatible with the ICC monitoring software, you can use that software running on a suitable Raspberry Pi and that will talk directly to the Pylontech and get the accurate SOC figure. You have to configure the Axpert settings so it doesn't try to "get in the way", and then ICC can "call the shots" as to when to switch between battery and line mode, for example. I believe that the screenshot above is from ICC; you can just see the bottom of the letters "ICC" in the top left corner of the screen capture.

OK got it, thanks for the reply.

Does anyone perhaps have any diagrams/pictures where one can see a typical 'older' Axpert installation but where it's been upgraded to use Pylontech with a Raspberry Pi. I have a number of 'older' Axpert installations in the field where the conventional AGM & flooded batteries are reaching their life term and I'm sure the owners will move toward Pylontechs. Would be nice to view some pics if anyone has, and some advice if there is anything tricky or to be aware of.    

On 2019/04/19 at 10:09 AM, Tobs said:

Hi all - not fully up to speed yet with Lithium Ion or specifically Pylontech, but I was told that for the Axpert inverters you cannot just 'plug-in' the Pylontech batteries, but that one needs some kind of external 'control box'? But looking at the discussion above, it seems you can connect Pylontech directly to Axpert?

Is this correct?  

That "control box" is probably the Raspberry Pi with some monitoring software on it.

The Pylontech battery unit has it's own charge controller build in.

You simply connect it to the Axpert inverter and change some settings on the voltages.

The Raspberry Pi that runs the ICC software make life easy to monitor and make changes to your Inverter setup, but you do not need this at all.

On 2019/01/15 at 11:31 AM, Padwan said:

@Chris Hobson quick question since you seem to have most hands on experience with Axpert/Pylontech/ICC.

(How) does ICC interact with multiple Pylontech batteries?

I've got two US3000 and connected with cable they offer for pylontech kit. 

 

But their software only shows one battery is connected .... and i cant really figure out have i missed something with setup / connection

 

 

 

Looking at this old post, I just want to share how to correctly set the DIP ADD switches on Pylon low-voltage batteries:

A )

If you have just one group of Pylon bricks, keep all the DIP switches in the default position: OFF = 0000
This applies to all the batteries that are in a single group.
The battery on the top, with an empty "link port 0", will automatically become a master battery. This battery will control the whole group and it's BMS will talk to the inverter, etc.

B )

ONLY if you have the multiple groups of Pylon bricks AND you have an external BMS box too (codename LV-HUB-A) then configure the ADD DIP on the upmost battery of the each group:
- Top battery of the first stack will have DIP 0100
- Top battery of the second stack will have DIP 0010
- Top battery of the third stack will have DIP 0110
- ...

The reason behind this is, that with 0000, the BMS of the top battery is the master BMS. With any other ADD DIP setting, the BMS of the top battery assumes that there's an external LV-HUB-A in the system, so it switches itselfs into a slave-mode, despite it's link port 0 is empty. Then the LV-HUB-A will become a central BMS.
Keep in mind, that with multiple stacks of Pylons, if you set 0000 on the upmost battery of the first stack, it won't work, because the BMS of that battery will remain in master mode.

Side note: a first DIP switch is just the baudrate selector, nothing else. For master/slave selection and address, only the remaining 3 switches are used.

A picture is worth a thousand words:

 

 

7 hours ago, kobus joubert said:

The Pylontech battery unit has it's own charge controller build in.

You simply connect it to the Axpert inverter and change some settings on the voltages.

The Raspberry Pi that runs the ICC software make life easy to monitor and make changes to your Inverter setup, but you do not need this at all.

That only apply to certain newer models.

On 2019/04/23 at 5:22 AM, SilverNodashi said:

That only apply to certain newer models.

I think that @kobus joubert meant just connect the thick battery cables, no thin data cables needed or indeed possible.

MPP Solar have updated their Pylontech page again. It seems that February 2019 and later manufactured Axpert Kings and Axpert VM IIIs have support for the proper, data connect, true SOC support. All other Axpert models just have "generic support" as Kobus Joubert mentioned, and detailed here:

http://www.mppsolar.com/manual/Pylontech Lithium/Pylontech inverter setup SOP.pdf

Really, the "generic support" just says to put the cut-off voltage setting at 47.5 V (so that becomes 0% SOC), and the bulk and absorb voltage settings to 53.2 V. Zero is now correct, what more do you want? 😮  I don't think it will even report about 100% SOC when the battery is full, in fact I predict 57%. So really, unless you have ICC on a Pi, I think it is worth it to get one of the two models that support true SOC.

Edited May 14, 20197 yr by Coulomb

26 minutes ago, Coulomb said:

I think that @kobus joubert meant just connect the thick battery cables, no thin data cables needed or indeed possible.

MPPSolar have updated their Pylontech page again. It seems that February 2019 and later manufactured Axpert Kings and Axpert VM IIIs have support for the proper, data connect, true SOC support. All other Axpert models just have "generic support" as Kobus Joubert mentioned, and detailed here:

http://www.mppsolar.com/manual/Pylontech Lithium/Pylontech inverter setup SOP.pdf

Really, the "generic support" just says to put the cut-off voltage setting at 47.5 V (so that becomes 0% SOC), and the bulk and absorb voltage settings to 53.2 V. Zero is now correct, what more do you want? 😮  I don't think it will even report about 100% SOC when the battery is full, in fact I predict 57%. So really, unless you have ICC on a Pi, I think it is worth it to get one of the two models that support true SOC.

That 5048GK model looks like the Axpert King. Which I believe has some limited functionality in terms. Check page 13 on the manual: http://www.mppsolar.com/manual/Pylontech Lithium/Pylontech inverter setup SOP.pdf for the settings. 

I guess the dry contacts will also work with this in-case you want to switch on/off a relay or contactor

On 2019/04/23 at 4:50 PM, SilverNodashi said:

That 5048GK model looks like the Axpert King. Which I believe has some limited functionality in terms. Check page 13 on the manual

Yes, the PIP-5048GK is the same as an Axpert King 5K-48. [ Edit: oops! Actually, it's the Axpert VM III 5K-48. ] The "limited functionality" is with the "General Compatible Condition" (what I called "generic support"), which you would only use if you had an old model (manufactured some time before February 2019) that didn't have the "deluxe support". And then even if they refuse to provide a firmware update to support the deluxe support (I suppose it's possible that some hardware change is required in addition to the firmware update).

Edited June 15, 20197 yr by Coulomb

On 2019/01/10 at 10:04 PM, Chris Hobson said:

Hi Kobus 

have a look in the download section there is a Axpert Guide I wrote a year or so ago (it needs updating).

With a 3.5kW Pylontech the max charging rate is 37A. Since the Axpert can only be set in graduation of 10A that limits you to 30A.  So setting 2 and 11 should not be above 30A. Further the settings are exactly the same as the settings for US2000B below.

Hello All

New to this forum and found this post which is what I need help with please. My setup is as follows:

• 2 * Axpert/Mecer 5Kw Inverters connected in parallel
• 24 * Canadian solar panels
• 6 * 2.4Kw Pylontech batteries

My inverters blew and after a few weeks they were returned and installed yesterday. The settings are currently set as follows:

• Program 02: 40A
• Program 05: USE
• Program 11: 30A
• Program 12: 46V
• Program 13 48V
• Program 26: 53.2V
• Program 29: 47.0V

For program 2, N being the amount of batteries, does that mean I need to multiply 25 * 6, giving me a 150A setting for each inverter?

Should I go ahead and change the other settings to the recommended settings as per earlier post based on my setup?

Thanks in advance!!

6 hours ago, Gunners said:

For program 2, N being the amount of batteries, does that mean I need to multiply 25 * 6, giving me a 150A setting for each inverter?

Nearly. You want 150 A spread between the two inverters. So 70 A on one, and 80 A on the other (80 A on whichever you feel has the better solar panels due to lack of shading, orientation, or sheer number of panels).

6 hours ago, Gunners said:

Should I go ahead and change the other settings to the recommended settings as per earlier post based on my setup?

Yes, I believe so. Unfortunately Chris didn't give a figure (in the above) for the float voltage setting, setting 27. It seems that people put it a little lower than the bulk/absorb setting, so say 53.0 V. Though I believe that both the absorb and float figures for Pylontechs are far too high.

 

Thanks Coulomb, appreciate the reply. Will make the changes.

On 2019/04/22 at 4:53 PM, Youda said:

 

Looking at this old post, I just want to share how to correctly set the DIP ADD switches on Pylon low-voltage batteries:

A )

If you have just one group of Pylon bricks, keep all the DIP switches in the default position: OFF = 0000
This applies to all the batteries that are in a single group.
The battery on the top, with an empty "link port 0", will automatically become a master battery. This battery will control the whole group and it's BMS will talk to the inverter, etc.

B )

ONLY if you have the multiple groups of Pylon bricks AND you have an external BMS box too (codename LV-HUB-A) then configure the ADD DIP on the upmost battery of the each group:
- Top battery of the first stack will have DIP 0100
- Top battery of the second stack will have DIP 0010
- Top battery of the third stack will have DIP 0110
- ...

The reason behind this is, that with 0000, the BMS of the top battery is the master BMS. With any other ADD DIP setting, the BMS of the top battery assumes that there's an external LV-HUB-A in the system, so it switches itselfs into a slave-mode, despite it's link port 0 is empty. Then the LV-HUB-A will become a central BMS.
Keep in mind, that with multiple stacks of Pylons, if you set 0000 on the upmost battery of the first stack, it won't work, because the BMS of that battery will remain in master mode.

Side note: a first DIP switch is just the baudrate selector, nothing else. For master/slave selection and address, only the remaining 3 switches are used.

A picture is worth a thousand words:

 

 

Hi: Hope you can assist. I have 2 x 5kVA King Inverters setup for single phase parallel operation and  4 x parallel connected US3000B batteries (totaling 14.4kWh) .

I want to maximize on demand and energy without overloading the long battery cables, hence I'm planning to connect the four  parallel connected batteries via two sets of long 25sqmm battery cables to a single common set of busbars (as per picture attached). Both inverters will then be fed from the common busbars via 100A fuses.   Any suggestions or concerns on the proposed configuration would be appreciated.

48 minutes ago, Janna said:

I want to maximize on demand and energy without overloading the long battery cables, hence I'm planning to connect the four  parallel connected batteries via two sets of long 25sqmm battery cables to a single common set of busbars (as per picture attached). Both inverters will then be fed from the common busbars via 100A fuses.

I think you need at least 35 mm², possibly 50 mm² for the long cables.

I'd also consider 125 A for the inverter fuses, unless you never envisage approaching 10 kW total output. And of course, these need to be DC rated.

Thanks for your prompt response Coulomb.

My real concern is the ampacity of the 25sqmm battery cables and battery terminal connectors. From my understanding, the Pylontech terminals have built-in temperature sensing  and on-board output current control, seemingly configured to avoid overloading of the cable and terminal connectors. I'm yet to find literature on how that actually works.

I recorded a peak steady state load of around 7kW once over the past month, hence very comfortable  that I'll be within the ratings of both my inverter and battery capacity.  I intend to set par 02 (max charge current) on each of my two inverters at 50A, thus the maximum steady state current on the battery cables is expected to be below 208A under worst loading condition. 

Aberdare's 25sqmm Power Panel Flex Cable is continuously rated 104A and I'd expect the 25sqmm  Pylontech cables and terminal connectors to be similarly rated. Using larger cable size would only resolve cable capacity but the terminal connector ampacity remain what it is. I therefor thought of using two sets of 25sqmm long battery cables connected to the open pos & neg terminals of both the master battery and the bottom battery  to form a parallel feed from the battery bank into the common busbars which in turn feed the two inverters, each via its own 100Amp DC fuses. In theory that would give me 200A battery ouput current (as limited by fuse rating) without straining the cables or connector terminals. 

Looking at the image published by Youda on 22 April 2019, it definitely appears if each stack are connected by two sets of long battery cables.  Do you have any experience with such configuration or do you have any concerns to make it work?

 

 

30 minutes ago, Janna said:

I therefor thought of using two sets of 25sqmm long battery cables connected to the open pos & neg terminals of both the master battery and the bottom battery  to form a parallel feed from the battery bank

Oh, well, that sounds like it's 25 mm² x 2 = 50 mm² all the way; that's fine.

Thanks Coulomb: Do you foresee any Pylontech control related issue with two sets of long cables hooked to the 4 x US3000B stack?