May 25, 20224 yr Author Aaaaaaaaaaaaaaaand mistery solved ! Today I purchased an older US2000 (don't know software and firmware as this one has the old RJ12 port and don't have a connector for it) and tried to connect the inverter to it and BAM ! Inverter connected to it successfully !! So my issue is indeed the damn firmware in the inverter. I can't use the old US2000 as master battery as the newer ones will not work ... so I must wait for China to provide new firmware for my unit ... if ever
May 26, 20224 yr Author And finally I got an answer from EaSunpower : "Hello my friend, yes, I am very sorry, our engineers are also working hard, Pylontech US3000C, Pylontech US2000C are still in testing, if there is any new progress, I will contact you, thank you." In my eyes this means .... never
May 27, 20224 yr Hi friends! There is a communication problem with pylontech b dyness batteries. despite the fact that they use the same PYL protocol, they have different cable pinouts, which often causes problems for many users. Defective cables are also often found, this must also be taken into account. So, battery cable PYL: PYL -> INV: 8->3, 7->5. For DYN batteries: DYN->INV: 1->5, 3->3. Sorry for my English, I'm using a translator. Peace for everyone!
July 29, 20224 yr Hi all Reviving this thread again. Had my Axpert MKS IV 5.6Kw paired with the Dyness BX51100 installed this week. Getting the dreaded error 61. The battery came with a pre-made cable labeled Axpert King which we are using. Battery set on inverter to PYL and jumper set to 0100 What is happening is the BMS and Inverter comms seems to be syncing (flashing heartbeat). It shows the correct battery capacity etc. Then after about 30 seconds error 61 occurs and the inverter flashes red. It flashes red for approx 2 min then it goes back to green with the heartbeat fucntioning as it should. This loop just continues. Any ideas what may be causing this? For now I am running the inverter on SBU mode and the battery set on USR with these settings CV - 56v FL - 55.5v Cut-off - 48v Back to utility - 50v Back to battery - 52v Max Charge Current: 40A Max AC charge current: 10A Are these settings safe for now? Cheers Douw
July 29, 20224 yr Author Don't know the Dyness BX51100 but looking at the specs the settings should be ok. What voltage does the inverter read from the battery ?
July 30, 20224 yr I dont think very accurate is what I can say. It's working for now though. Step 1 today will be to remake the cable that came with the battery - just in case. If that doesnt work I will most likely be going to the Solar Assistant Rasberry Pi Platform. Also waiting to hear back from Dyness.
July 30, 20224 yr 18 hours ago, Douw Gerber said: The battery came with a pre-made cable labeled Axpert King which we are using. Just fyi, my Kodak king came with a pylontech cable that is directional. Have you tried turning the cable around? My guess is your cable should have the axpert label on the inverter side as my pylontech cable needs the 'pyl' label on the battery side.
July 30, 20224 yr Cable I got was at least clearly marked Battery and Axpert King I even made up a new cable now - same issue... I am just going to get the Solar Assistant
July 30, 20224 yr 7 minutes ago, Douw Gerber said: Cable I got was at least clearly marked Battery and Axpert King Aha, yours was more obvious than mine... just wondering if you've tried this option from a few posts up (you didn't mention it originally) as it seems the dyness is different to the pylontech: On 2022/05/27 at 5:43 AM, sergey-sol said: Hi friends! There is a communication problem with pylontech b dyness batteries. despite the fact that they use the same PYL protocol, they have different cable pinouts, which often causes problems for many users. Defective cables are also often found, this must also be taken into account. So, battery cable PYL: PYL -> INV: 8->3, 7->5. For DYN batteries: DYN->INV: 1->5, 3->3. Sorry for my English, I'm using a translator. Peace for everyone!
July 30, 20224 yr 57 minutes ago, jumper said: Aha, yours was more obvious than mine... just wondering if you've tried this option from a few posts up (you didn't mention it originally) as it seems the dyness is different to the pylontech: After a lot of research that pinout Sergey gave is for the Dyness B3 series The BX48100 and BX51100 use - (99% sure): DYN -> INV ; 1 -> 3, 2 -> 5 The Dyness side is from the battery manual. The Inverter side I am going on what I could find all over for Axpert
July 30, 20224 yr See the difference. Table 2-4 = B3 Table 2-5 = BX51100 Edited July 30, 20224 yr by Douw Gerber
July 30, 20224 yr 2 hours ago, Douw Gerber said: See the difference. Table 2-4 = B3 Table 2-5 = BX51100 This also corresponds to what is available on the SolarAssistant website for the BX48100 Edited July 30, 20224 yr by Douw Gerber
July 30, 20224 yr 9 minutes ago, Douw Gerber said: This also corresponds to what is available on the SolarAssistant website for the BX48100 Oh man, this gets confusing because it depends if they are talking about the pins on the port on the battery or the pins on the RJ45 plug on the cable because they are often counted in opposite directions. The Dyness manual doesn't make it clear which they are talking about, but because they count from 1-16 in the table I expect they are going far left to far right. So pin 1 in the battery port is far left and that corresponds to pin 8 on the RJ45 as per the diagram in the BX51100 manual: I have just checked the pylontech cable that came with my king using a multimeter against the BX51100 pinout in the manual and it is the same. Using the numbering of the RJ45 plug as in the image above, it should be pin 7 on the bat side goes to pin 5 on the inverter side and pin 8 on the bat side goes to pin 3 on the inverter side. If that's what you have and it doesn't work then the only thing I can think is that you might have a different version bms that the inverter doesn't recognize (I've seen this with Narada batteries on here).
July 30, 20224 yr 1 hour ago, jumper said: Oh man, this gets confusing because it depends if they are talking about the pins on the port on the battery or the pins on the RJ45 plug on the cable because they are often counted in opposite directions. The Dyness manual doesn't make it clear which they are talking about, but because they count from 1-16 in the table I expect they are going far left to far right. So pin 1 in the battery port is far left and that corresponds to pin 8 on the RJ45 as per the diagram in the BX51100 manual: I have just checked the pylontech cable that came with my king using a multimeter against the BX51100 pinout in the manual and it is the same. Using the numbering of the RJ45 plug as in the image above, it should be pin 7 on the bat side goes to pin 5 on the inverter side and pin 8 on the bat side goes to pin 3 on the inverter side. If that's what you have and it doesn't work then the only thing I can think is that you might have a different version bms that the inverter doesn't recognize (I've seen this with Narada batteries on here). Thank you for the info...off to make the 20th cable now 🙂 Also I just want to confirm - when making the cable - is it only that one pair that I have to wire as per your pinouts? Can I ignore the rest if I am only going to use RS485?
July 30, 20224 yr I tried @jumper pinouts - didn't work. Used mine as per previous post 1 -> 3 and 2 -> 5 - comms established but then gives error 61 after about 15 seconds - then after 2 min comms again - loop. So back to square one I guess. I have ordered a SolarAssitant box. Will let you guys know how that goes. For now just back to USR setting on battery. Thanks for all the help all.
July 30, 20224 yr Author Just get MultiSibControl , much better control for Pylontech than SolarAssistant. --- >>> http://www.multisibcontrol.net/ I run SolarAssistant also in parallel but only because it has a web interface , else for battery charge control is kinda useless and for Axpert licensed inverters is full of bugs. And by the looks of it , your inverter Firmware has same problem as mine ... never got it working with Pylontech BMS. Edited July 30, 20224 yr by Jaxone
July 31, 20224 yr 7 hours ago, Douw Gerber said: Thank you for the info...off to make the 20th cable now 🙂 Also I just want to confirm - when making the cable - is it only that one pair that I have to wire as per your pinouts? Can I ignore the rest if I am only going to use RS485? Do you also have the "SOL-I-AX-5M4 / Mecer 5.6kw 6kwmppt 48v " ?
July 31, 20224 yr 7 hours ago, Douw Gerber said: Also I just want to confirm - when making the cable - is it only that one pair that I have to wire as per your pinouts? Can I ignore the rest if I am only going to use RS485? Yes, you should only need those 2 wires for it to work. Bummer that it didnt help, it might be a software issue between versions or something.
July 31, 20224 yr 10 hours ago, Jaxone said: Just get MultiSibControl , much better control for Pylontech than SolarAssistant. --- >>> http://www.multisibcontrol.net/ I run SolarAssistant also in parallel but only because it has a web interface , else for battery charge control is kinda useless and for Axpert licensed inverters is full of bugs. And by the looks of it , your inverter Firmware has same problem as mine ... never got it working with Pylontech BMS. Having a look at Multisibcontrol. The USB cable between inverter, is that a standard USB cable with obviously the right connector on the inverter side? Then, the RS485 cable - I assume the one I ordered from solar assist will do the job here. Only downside I see with this system is you need a dedicated PC connected at all times. Not a trainsmash though.
July 31, 20224 yr Author 4 hours ago, Shaunj187 said: Do you also have the "SOL-I-AX-5M4 / Mecer 5.6kw 6kwmppt 48v " ? No , I have an Easunpower but it's based on the same Axpert inverter. With MulitSib Control I connect to the Inverter using either the USB cable or comm cable that came with inverter. To the battery I connect using custom USB to RS232 cable and connect to the console port of the battery.
August 1, 20224 yr Good Morning All, This is my first 48v inverter install. I have the SOL-I-AX-5M4 / Mecer 5.6kw 6kwmppt 48v unit. My inverter runs foperfect for 10 minutes, then gives a error 61 code reboots then runs again for 10 minutes error 61 and so on... So my understand with this thread is #1 that you can by pass the error 61 code by running it in user defined mode? #2 Get the correct wiring cable... There was alot of talk about firm ware versions and also I think there might be a compatibility issue with the battery and inverter. (Works fine with a 2000 battery but NOT tye 3000)Please see my pic and advise accordingly. Currently I'm using the ethernet cable marked "Axpert inverter -> battery" is this the correct cable for comms on my unit or must I use the RS-485 cable
August 1, 20224 yr 5 hours ago, Shaunj187za said: Good Morning All, This is my first 48v inverter install. I have the SOL-I-AX-5M4 / Mecer 5.6kw 6kwmppt 48v unit. My inverter runs foperfect for 10 minutes, then gives a error 61 code reboots then runs again for 10 minutes error 61 and so on... So my understand with this thread is #1 that you can by pass the error 61 code by running it in user defined mode? #2 Get the correct wiring cable... There was alot of talk about firm ware versions and also I think there might be a compatibility issue with the battery and inverter. (Works fine with a 2000 battery but NOT tye 3000)Please see my pic and advise accordingly. Currently I'm using the ethernet cable marked "Axpert inverter -> battery" is this the correct cable for comms on my unit or must I use the RS-485 cable I have exactly the same inverter 🙂 with the same issue. So its also happening with you battery. Trust me I have tried every cable and pinout combination that I could find on the internet and this forum. I think its a firmware issue if you ask me. I am going to be setting up SolarAssistance when it arrives - will provide yoiu with feedback. They reckon it will sort out this issue - if it does it will be great and as an added bonus you get much better reporting on your system. I am also going to be getting my installed to check with Mustek on why this is happening - maybe you should too so they can see it's not an isolated problem. Edited August 1, 20224 yr by Douw Gerber
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