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opinion:frater_secessus:epever [2022/08/28 16:36] frater_secessus [anecdotes from others] |
opinion:frater_secessus:epever [2023/01/18 14:55] frater_secessus [issues] |
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* it will adjust to changing conditions, but it can be slow. One might say " | * it will adjust to changing conditions, but it can be slow. One might say " | ||
* it can be slow to react after long periods of no load - see [[https:// | * it can be slow to react after long periods of no load - see [[https:// | ||
- | * it can get confused in complex solar conditions, as with partly-cloudy skies and high winds, or in breezes that move partial shade around on the panels. | + | * it can get confused in complex solar conditions, as with partly-cloudy skies and high winds, or in breezes that move partial shade around on the panels. |
* the large AN controllers (≥50A) have **undersized terminal screws** which can snap under overzealous tightening. | * the large AN controllers (≥50A) have **undersized terminal screws** which can snap under overzealous tightening. | ||
* firmware does not appear to be field-upgradable without hacking | * firmware does not appear to be field-upgradable without hacking | ||
* Absorption duration cannot be zeroed out; the minimum duration is 10 minutes. | * Absorption duration cannot be zeroed out; the minimum duration is 10 minutes. | ||
+ | * Absorption duration max is 180 minutes | ||
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+ | ==== tracking crashes ==== | ||
+ | |||
+ | === videos === | ||
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+ | * [[https:// | ||
+ | * [[https:// | ||
+ | * [[https:// | ||
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+ | === anecdotes === | ||
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- | ==== anecdotes from others ==== | ||
>> My epever often pulls pv voltages down to battery voltage acting like PWM. Getting really annoying now. It works okay with 12v and 17.5v panels, but the bigger panels with a voltage of 35v present a problem on cloudy days. It drags thr voltage down, and doesnt let it back up until i reset the unit. It then lets the panels back up to proper voltage and starts producing decent power again. ([[https:// | >> My epever often pulls pv voltages down to battery voltage acting like PWM. Getting really annoying now. It works okay with 12v and 17.5v panels, but the bigger panels with a voltage of 35v present a problem on cloudy days. It drags thr voltage down, and doesnt let it back up until i reset the unit. It then lets the panels back up to proper voltage and starts producing decent power again. ([[https:// | ||
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>> The system seems to work as it should most of the time. On occasion in full sun the charge controller shows a lower voltage ie 26.4 v about half of what it typically does in full sun. If I unplug everything and plug the panels back in it will return to the higher voltage around 60v and begin working normally again. ([[https:// | >> The system seems to work as it should most of the time. On occasion in full sun the charge controller shows a lower voltage ie 26.4 v about half of what it typically does in full sun. If I unplug everything and plug the panels back in it will return to the higher voltage around 60v and begin working normally again. ([[https:// | ||
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+ | >> I have 2 3210AN and one of them have the same problem.. need to disconnect to PV and need 3-5 second to track correctly. it's cause 8% less energy production compare to another one. - [[https:// | ||
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+ | >> I have 3210AN and the same problem. I only have one panel Risen 440Wp Vmpp 43.8V. In the morning or in the cloudy sky Mppt does not work. Holds 14V about 24W. When disconnected it goes on about 43V and shows 100W. This is annoying. This is evident software error. -- [[https:// | ||