February 9, 20179 yr @Coulomb thanks a great deal for your effort to improve the Axpert firmware, which certainly was very successful with your previous patch. I am sure there are a multitude of Axpert owners eagerly awaiting the patched firmware you are working on now. We are all in indebted to you.
February 12, 20179 yr On 08/02/2017 at 10:31 PM, Don said: Tank you for the information @Coulomb. We are anxiously awaiting your 72.70 patch. Just wondering why Voltronic don't get you to write their firmware for them? Those Chinese obviously seem to be be confused and struggling to get it right. Actually, firmware for an inverter like this is *very* complex. I doubt that I have a vague understanding of more than a quarter of it. The parts that Weber and I are patching are way less than 1% of it. I realised recently that I had been misinterpreting the nature of the charging bug. It seems that they are well aware of the need for the voltage condition, and it's been in their source code since at lest 52.30, probably all along. They just have a trivial typo (or possibly "thinko") in one part of one of their functions; they have a "<" where they need a ">=". This bug, as it happens, is in a completely different function from the main inverter charge control function; the latter relies on a global flag set by the former. We're up to the third iteration of what will become the 72.70A firmware, plus Weber has had a bit of a setback that we need to investigate.
February 16, 20179 yr I was following that 64 page thread on the other forum... seems one of you Ausies blew up an inverter again... :-)
February 16, 20179 yr 12 hours ago, plonkster said: I was following that 64 page thread on the other forum... seems one of you Ausies blew up an inverter again... :-) What's this blue contamination? Fortunately it was only 20 odd pages long when I first discovered the site. 64 pages is a daunting task.
February 16, 20179 yr 4 minutes ago, Chris Hobson said: What this blue contamination? I walked into a solar company's office the other day to buy some hanger bolts, and what do you know, the whole wall was full of blue equipment. I thought I died and went to heaven... :-)
February 16, 20179 yr Author Ya, in Australia they are called Gaint's and are painted red. I hear they paint new Axperts blue in South Africa.
February 16, 20179 yr Author On 2/16/2017 at 11:00 PM, PurePower said: Where can you download this version of the firmware? You can search the internet till you are blue in the face, or download the latest firmware version here from my Dropbox.
February 17, 20179 yr 9 hours ago, Don said: I hear they paint new Axperts blue in South Africa. We are watching you with keen interest. You cannot paint it blue thereby making it Blue...
February 17, 20179 yr 4 minutes ago, The Terrible Triplett said: We are watching you with keen interest. You cannot paint it blue thereby making it Blue... Ja genade , then we will have to pay triple the amount of money for them , rather let it stay grey/silver ..
February 17, 20179 yr 11 hours ago, Don said: You can search the internet till you are blue in the face, or here from my Dropbox. Thanks
February 17, 20179 yr 2 hours ago, PaulF007 said: Ja genade , then we will have to pay triple the amount of money for them , rather let it stay grey/silver .. I'm reminded of a man who said, when challenged to a debate: That will look better on your CV than it will on mine :-)
February 17, 20179 yr 32 minutes ago, plonkster said: I'm reminded of a man who said, when challenged to a debate: That will look better on your CV than it will on mine :-) Had to read it twice . well said!
February 17, 20179 yr 20 minutes ago, PaulF007 said: Had to read it twice . well said! The original was Robert May, President of the Royal Society from 2000-2005. The man quoting him was Richard Dawkins ducking out of a debate with William Craig. The entire thing is of course incredibly funny as one is a Zoologist and the other a professional philosopher. It's hard to say how the results could be used on anybody's CV! :-) But I digress, as usual.
May 23, 20179 yr hi all, please can someone help with the correct programming? I have two 5kva in parallel, 3 banks of 250 amp hour Sonic gel batteries, 6 kw of PV My batteries are not lasting at all anymore get to 50 volts discharge and fall off the cliff. back to grid voltage 48 volt. Bulk charge 58V floating 54V. bulk charge for 2 hours.
May 23, 20179 yr On 2017-5-23 at 1:23 PM, Dave Morley said: hi all, please can someone help with the correct programming? I have two 5kva in parallel, 3 banks of 250 amp hour Sonic gel batteries, 6 kw of PV My batteries are not lasting at all anymore get to 50 volts discharge and fall off the cliff. back to grid voltage 48 volt. Bulk charge 58V floating 54V. bulk charge for 2 hours. Hi Dave I am on a road trip and will be home tomorrow night. I hate having to type long explanations on these silly touch screens.I will answer when I get home. In the meantime can you supply us with your settings.
May 23, 20179 yr 1 SBU 2 40 3 UPS 4 SDS 5 USE 6 LTD 7 RTF 9 50 11 2 A 12 48 13 52 16 OSO 18 BON 19 TEP 20 LON 22 AON 23 BYD 25 FEN 26 58.4 27 54 28 PAL 29 42 30 ONE 31 SBE 32 180 was on AUT changed this evening 38 DIS
May 25, 20179 yr Hi Dave Program 2 You should be charging the bank at about 75A (40A for both inverters?) Program 12 I am happy with 48V Program 13 55V and maybe 56V (setting 12 and 13 are too close to each other) Program 23 Bypass enabled My concern is that you have a large battery bank and you make no use of Eskom charging. Depending on the position and efficiency of your array you may be chronically undercharging your batteries. If program 12 and 13's setting are to close together the inverter will flick between grid and solar not allowing a truly restorative charge. Hope that helps
May 27, 20179 yr Thank you Chris I will give these setting a try. Much appreciated Sent from my SM-G955F using Tapatalk
May 27, 20179 yr Hi Dave How old are your batteries? Whatsort of production are you getting off your panels? What sort of DOD are you doing at night? To charge from Grid set program 16 to CSO and up you AC charging (program 11)
May 28, 20179 yr Hi ChrisBatteries are about a year old. I did the necessary changes you suggested and my panels did come on this morning stayed in bypass all day. Any suggestions?Sent from my SM-G955F using Tapatalk
May 28, 20179 yr 11 minutes ago, Dave Morley said: Apologies.......panels did not come on.... Sent from my SM-G955F using Tapatalk I am not entirely sure what you mean. Panels producing no power? The official firmware has a bug which causes the SCC in some situations to go to float prematurely. What firmware are you using? 22 minutes ago, Dave Morley said: stayed in bypass all day. i.e. Grid charging the whole day?
May 28, 20179 yr The inverter did not switch the panels on this morning. Stayed in bypass on grid all day. I have 6 kw of Pv and on a clear day can produce around 4.4kwSent from my SM-G955F using Tapatalk
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