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opinion:frater_secessus:epever [2023/01/18 13:53]
frater_secessus [anecdotes about tracking crashes] 		opinion:frater_secessus:epever [2024/09/06 20:11] (current)
frater_secessus [tracking crashes]
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     * it will adjust to changing conditions, but it can be slow.  One might say "plodding".       * it will adjust to changing conditions, but it can be slow.  One might say "plodding".  
     * it can be slow to react after long periods of no load - see [[https://www.reddit.com/r/SolarDIY/comments/ttxs1b/switched_to_lifepo4_some_questions/i30s3ve/|this reddit post]] where I describe the phenomenon     * it can be slow to react after long periods of no load - see [[https://www.reddit.com/r/SolarDIY/comments/ttxs1b/switched_to_lifepo4_some_questions/i30s3ve/|this reddit post]] where I describe the phenomenon
-    * 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.  In these conditions Vpanel can fall to just above Vbatt, severely hobbling solar harvest.((effectively matching PWM output))+    * 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.  In these conditions Vpanel can crash to just above Vbatt, severely hobbling solar harvest.((effectively matching PWM output))
   * the large AN controllers (≥50A) have **undersized terminal screws** which can snap under overzealous tightening.  IMO EpEver should update the design with hefty BN-series terminal screws.    * the large AN controllers (≥50A) have **undersized terminal screws** which can snap under overzealous tightening.  IMO EpEver should update the design with hefty BN-series terminal screws. 
   * 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
 +
 +==== tracking crashes ====
 +
 +=== videos ===
 +
 +
 +  * [[https://www.youtube.com/watch?v=K0LuMSXKO0M|mppt epever tracker issue ]]
 +  * [[https://youtu.be/dFuZywwpfaU|EPever EPsolar Tracer 4215B MPPT review PART 1 - 4215BN]] Taking 5 minutes to find MPPT @ 11:10.  Sails right past MPP at 10:36.  
 +  * [[https://www.youtube.com/watch?v=YowgBCl1F1I|The EPSolar EPEver Tracer A Series after Nine Months of Use - 12v Solar Shed]]  - crashed PV voltage causing low output at 4:05. 
 +
 +
 +=== anecdotes ===
 +
  
-==== anecdotes about tracking crashes ==== 
  
 >> 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://www.youtube.com/watch?v=EZK-7Z1BuI8&lc=Ugz1brY6Fdioj-StPep4AaABAg|source]]) >> 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://www.youtube.com/watch?v=EZK-7Z1BuI8&lc=Ugz1brY6Fdioj-StPep4AaABAg|source]])
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 >>  I used a epever 3210an controller for about a year.  I was using lead acid. With the same issues you're having. A passing cloud will cause the charge controller to get lost tracking. And the array voltage will drop and get stuck.  Having to constantly watch then unplug and reconnect to get it going again. ([[https://www.solarpaneltalk.com/forum/solar/the-pros-and-cons-of-solar-energy/422794-epever-tracer-issue?p=422896#post422896|source]]) >>  I used a epever 3210an controller for about a year.  I was using lead acid. With the same issues you're having. A passing cloud will cause the charge controller to get lost tracking. And the array voltage will drop and get stuck.  Having to constantly watch then unplug and reconnect to get it going again. ([[https://www.solarpaneltalk.com/forum/solar/the-pros-and-cons-of-solar-energy/422794-epever-tracer-issue?p=422896#post422896|source]])
  
-Comments on [[https://www.youtube.com/watch?v=K0LuMSXKO0M|this video]] 
  
 >>  just started having this issue all of a sudden, it's supposed to be 102 volts and it drops down to 28 volts (24 volt battery system) and when I disconnect my panels and reconnect it seems to resolve.... so confused myself not sure what started it, because it never used to do this. Has anyone solved this issue? -- [[https://www.youtube.com/watch?v=K0LuMSXKO0M&lc=UgxUrpS75hlFtuv-4xh4AaABAg|source]] >>  just started having this issue all of a sudden, it's supposed to be 102 volts and it drops down to 28 volts (24 volt battery system) and when I disconnect my panels and reconnect it seems to resolve.... so confused myself not sure what started it, because it never used to do this. Has anyone solved this issue? -- [[https://www.youtube.com/watch?v=K0LuMSXKO0M&lc=UgxUrpS75hlFtuv-4xh4AaABAg|source]]
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 +>> im having the same issue with epever charge controller. Early morning before the sun fully hits the panels 17 volts and .5 amps from a 60 volt array 300 watt array. I can unplug the panels and reconnect at it goes up to 57 or so volts then slowly drifts back to 17 again. Does the tracking just not work right or what is your opinion. I ran 2 100 watt 18.9 vmp panels on the epever. And 2 on a pwm. The mppt would go from 150 watts in full sun to 100 watt output every 20 minutes or so. And the pwm would steady put out 148 watts. In an all day comparison pwm won producing more watt hours.((https://forum.solar-electric.com/discussion/comment/397054/#Comment_397054))
  
 +>> I threw out my EPSolar Tracers for the same reason, equal paneling with correct voltages in a test of 3 EP Solar Tracers verses 3 Trace C-40 PWM The old trace units preformed much better. ... [the epever] would slowly sink in PV input volts until reset or maybe 20-30 minutes later would do a full sweep and come up to a decent input voltage. I bought a Classic.....problems gone((https://forum.solar-electric.com/discussion/comment/397055#Comment_397055))
  
 +>> After driving with the Victron DC-DC charger kicking on, the Epever MPPT solar charge controller would act similar to a PWM controller: it would read incoming voltage close to the battery's and drastically reduce incoming amps from what was typical for our setup. Resetting breakers or factory resetting the MPPT and setting it up again would fix it until we drove again.[[https://www.reddit.com/r/vandwellers/comments/1faohib/issues_with_renogy_dcdc_with_mppt/llvjoaa/|source]]
opinion/frater_secessus/epever.1674068016.txt.gz · Last modified: 2023/01/18 13:53 by frater_secessus

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