May 28, 20179 yr If program 16 is set to CSO then inverter should have charged the batteries from solar today
May 28, 20179 yr OK Now I am going to try and trouble shoot. What voltage did you see from your panels today? What make and size are your panels? How are they configured? Do you have a combiner box and are your strings individually fused. Was today cold with you? Current settings for programs 1,2,11,12,13,16,26,27,28,29,30,31.
May 28, 20179 yr All settings are the same as previous post except for the changes you suggested. Two strings of panels.9 x 300 watt 3 in series of 3 strings12 x 235 watt 3 in series of 4 strings Come into two fused combiner boxesSent from my SM-G955F using Tapatalk
May 28, 20179 yr 35 minutes ago, Dave Morley said: 9 x 300 watt 3 in series of 3 strings Some 72 cell panels' VOC is very close to the 145 max of the SCC.
May 28, 20179 yr System been running like this for over a year with no issues.Sent from my SM-G955F using Tapatalk
May 29, 20179 yr Just check today whether the LCD/Watchpower registers a voltage for your panels. If it registers a voltage then it is a setting/inverter problem. If nothing registers then it is a fuse/breaker/physical problem. Cold weather can give you problems you never experienced before.
May 29, 20179 yr You can also use: http://www.midnitesolar.com/sizingTool/ to double check the VOC. Just in case.
May 29, 20179 yr Definitely a problem already registering 75 volts on PVSent from my SM-G955F using Tapatalk
May 29, 20179 yr 10 minutes ago, Dave Morley said: Definitely a problem already registering 75 volts on PV Sent from my SM-G955F using Tapatalk Ok tell us what your voltage is at 9.00am and whether there is any PV Amp reading
May 29, 20179 yr Yesterday there were no amps at all only registered around 105 volt at 3 pm. Definitely a software issue. Not seeing the pv voltage.Sent from my SM-G955F using Tapatalk
May 29, 20179 yr Would this not be related to setting no 2 to 70 amps per inverter?Sent from my SM-G955F using Tapatalk
May 29, 20179 yr 36 minutes ago, Dave Morley said: Would this not be related to setting no 2 to 70 amps per inverter? Sent from my SM-G955F using Tapatalk There has been a misunderstanding. I was just wanted to know that both inverters were set to 40A to give us ~ 75A total. So you should not have changed program 2.
May 29, 20179 yr Ahhh ok....will pop down home shortly and change to 40 ampsSent from my SM-G955F using Tapatalk
June 7, 20178 yr I just upgraded to 72.70 in the hope that I could get my cheap Builders Warehouse generator to work but it still doesn't. Has anyone tested a generator on this version?
June 7, 20178 yr I run both a cheap Chinese AVR and a diesel generator to supply my Axpert. There was a problem the 52.30 firmware and gennies but I have not heard of problems with later version of firmware. Make sure that program 3 is set to APL rather than UPS to make the Axpert more tolerant of AC voltage and frequency variation.
June 12, 20178 yr On 2017/06/07 at 3:08 PM, Chris Hobson said: I run both a cheap Chinese AVR and a diesel generator to supply my Axpert. There was a problem the 52.30 firmware and gennies but I have not heard of problems with later version of firmware. Make sure that program 3 is set to APL rather than UPS to make the Axpert more tolerant of AC voltage and frequency variation. Thanks. It seems that the problem was caused by not having any load on the inverter. Once I connected the load then the inverter accepted the generator quite happily.
June 15, 20178 yr HI Guys, please help.I am running two x 5 KV Axperts but the solar charging is not totally incorrect. I believe there is an upgrade/patch that I can run to solve this problem. Read about it on the forum but can not get the upgrade or the instructions how to do it anywhere. Can somebody please assist me, I will appreciate it. Another question, I am running 4 strings of 4 x 24v panels to these units. One of my collueges claims that it is too much as the specsheet shows 60VDc - 115VDc WITH 145V MAX. Most of the time I run at more than 115vdc during the day. Is this part of my problem or not?
June 15, 20178 yr 1 hour ago, Deonsr said: 4 strings of 4 x 24v panels to these units Technically there is no such thing as a 24V panel. The voltage depends on the level of insolation so the voltage will vary. Manufacturers commonly make three kinds, the so-called 12V module (36 cells, usually works best around 18V), the 24V module (72 cells, works best around 36V), and recently there has also been 60-cell modules, which work around 30V but could probably be called a 20V panel if we were following the same two-thirds rule used for the rest. I'm almost certain you are NOT using 72-cell modules, because the open-circuit voltage of those modules are often close to 45V, and 4 of those in series will be at 180V which is higher than most of the MPPTs on the market. So you are likely using 60-cell modules then. These have an open circuit voltage around 36.5V, so 4 of them puts you over 145V. You're cruisin' for a bruisin', one cold winter morning with bright sunshine and that MPPT is going to go poof. Your colleague is absolutely correct, it's too much. Is it part of the charging problem? Probably not, though I don't know how well the Axpert MPPT operates outside of its recommended zone. I know it continues to work, but it is less efficient. Don't know how much, but probably less than 10% lost. Wild guess. Edit: just to clarify... "insolation", not to be confused with insulation, it's the amount of incoming sunlight :-)
June 15, 20178 yr Hi Plonkster, thank you for the info. Do you suggest I rewire to 3 panels in series with 6 strings? (I will have to add 2 more panels) Any advise on the firmware/software upgrade?
June 15, 20178 yr Yes, rewire into strings of 3. I don't know this inverter well enough to advise on firmware upgrades. I'm in the blue team :-)Sent from my GT-I9195 using Tapatalk
June 17, 20178 yr On 6/15/2017 at 10:34 PM, Deonsr said: I believe there is an upgrade/patch that I can run to solve this problem. Read about it on the forum but can not get the upgrade or the instructions how to do it anywhere. You can find the patch and discussion here: http://forums.aeva.asn.au/pip4048ms-inverter_topic4332_post64095.html#64095
December 26, 20187 yr On 2017/02/16 at 10:08 PM, Don said: You can search the internet till you are blue in the face, or download the latest firmware version here from my Dropbox. This link not working anymore. Can someone help and provide the latest firmware or post a new location? Thx
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