midnite classic creating 117V at pv input

[australsolarier]

just waiting for that windows10 update

[Halfcrazy]

I have the updater but it is "BETA" If you try it and it fails do you have access to a windows 7 or 8 PC? So far it has only failed on 1 PC and that has a USB driver issue but it still worries me as it erased the firmware and wouldn't update. So if you did not have a backup pc to update with then it would be an issue

Let me know if you want to try it or wait for a few more to play with it

[australsolarier]

well yes the pc is windows7. but it is about 20m from the shed. it would take hours if not days to set it up in the shed, not even thinking then returning it into the house. i mean it is heaps easier carrying the laptop to the shed and plug it in.
like i wrote before, the system is not in full use yet. i can charge the lifepo4 with the selectronics using power from the grid. so i am happy to wait till that windows10 updater comes out of beta.
anyway, thanks for the offer.

[dgd]

I thiink you have proved your point about the reversing and everyone believes you and Midnite said it is possible and that they made a firmware update to fix it hopefully. So just waiting for you to do that update.

I have had time to try and duplicate this 'reversing' using six different Classics, c150 150lite c250
With 24v 1025FLA, 800/48 SLA and 300ah 48v LiFeYPO4
In all cases the high PV input voltage faded away after a minute or so
No holding on to voltage for hours or apparent reversing (reverse voltage boosting)
So 'proven'. Definitely not.
Various Firmwares before 2079
Dgd

[australsolarier]

just by coincidence, just when i received the last message, my 48v system went into float, with no load and was doing the proven/unproven reversing. i waited a few minutes. in the status panel turned off "mppt mode".
and yes the pv voltage started to sag. turned on again. remained in resting mode.

my offer for seeing the fact for yourselves still stands.

have a good christmas holiday season

greetings urs

[BobWhite]

I thiink you have proved your point about the reversing and everyone believes you and Midnite said it is possible and that they made a firmware update to fix it hopefully. So just waiting for you to do that update.

well yes the pc is windows7. but it is about 20m from the shed. it would take hours if not days to set it up in the shed, not even thinking then returning it into the house. i mean it is heaps easier carrying the laptop to the shed and plug it in.
like i wrote before, the system is not in full use yet. i can charge the lifepo4 with the selectronics using power from the grid. so i am happy to wait till that windows10 updater comes out of beta.
anyway, thanks for the offer.

I thiink you have proved your point about the reversing and everyone believes you and Midnite said it is possible and that they made a firmware update to fix it hopefully. So just waiting for you to do that update.

I have had time to try and duplicate this 'reversing' using six different Classics, c150 150lite c250
With 24v 1025FLA, 800/48 SLA and 300ah 48v LiFeYPO4
In all cases the high PV input voltage faded away after a minute or so
No holding on to voltage for hours or apparent reversing (reverse voltage boosting)
So 'proven'. Definitely not.
Various Firmwares before 2079
Dgd

Maybe it's the controller!! It seams to me that this discussion has become very heated and I would think if the controller was sent in to midnite for a search and discovery it would benefit everyone! After all, the controller isn't in service yet and Im sure something can be worked out that will allow australsorier to get a controller in working order when the panels are ready and in place. australsorier, if you need a controller Ill send you one that works and is safe, I would just like to see your controller sent back to midnite for them to play with!

Walt

[australsolarier]

yes there is the possibility the  midnite classic is faulty.
however i think we should wait till that promised easy windows10 update procedure eventuates. some people here on the forum think that might solve the problem.
then, we go out from there.

[BobWhite]

That is fair enough! As long as you can be patient for the windows 10 update to be proven not to cause further issues. 
Walt

[Cniemand]

I'm confused here a bit... as once this LFP system is actually put in use... the whole problem is moot. We who have LFP packs know that the voltages are stiff and that when the Classic moves from ABSORB to FLOAT that it will take a moment for it to catch up. None of it is actually detrimental to our Lithium packs. You can either wait for it to do it on its own after a few minutes or a quick 15 seconds of a Kettle on would settle it.

My system has been up since June 2013 and it has never been an issue in a system being used.

How many times is that pack going to be recharged if it is not actually being used. Also, if someone is going to go on vacation and leave their system to not be used while away one would simply turn off all components and the breaker to the battery pack to keep from either charging or discharging. Lithiums are better off just sitting there by their lonesome rather than needing to be "Topped Off" like Pb cells.

Comply different chemistry here. Whole new set of quirks and nuances.

My two cents.

Cloud

[australsolarier]

ok
i updated the firmware to 2079. (with that new super easy straight forward beata updater.)

and
like the more knowledgeable members of this forum predicted, this 2079 update actually solved the problem. like ryan said earlier, the reversing times out after 90 seconds. (i actually timed it)

we can now let this go to rest.

i like to thank for the people here on the forum that contributed in a positive way to solve my concern.
the people that actually understood what i was talking about.

thanks again
and wishing everybody here a good year with much sunshine

greetings from down under
urs

[Halfcrazy]

Urs
Glad it all went as we hoped.

Ryan

[CDN-VT]

Glad all worked out, Im sure many learn't from all the postings .
I did at least .
Good-day Mate !

VT

[boB]

Great !  Good news for a change !

boB

[BobWhite]

real happy ti see it all worked out and with the understanding of the concernes