Absorb set to 55.2v. Classic goes from Bulk to absorb at 54.8v

Started by 5 Minutes 2 Midnite, July 11, 2017, 04:00:29 PM

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5 Minutes 2 Midnite

Quote from: Vic on July 13, 2017, 05:34:01 PM
Did you remove the paper insulator that keeps the battery from being connected before the Classic is commissioned?

You should be able to carefully probe the battery while it is still installed in the MNGP.

Fairly early in the evolution of the Classic,  there could be a bit of adhesive residue that could remain on the coin cell contacts that could keep the battery from doing its job when the CC battery breaker was OFF.   Also at times some have said that retensioning the battery holder contacts might help

I had removed the paper. No residue on cell. I don't think its a tension issue because the cell reads .7 volts out of the holder. Good ideas though!


Quote from: Vic on July 13, 2017, 05:34:01 PM
Regarding the LA check boxes,   there often is a button toward the right of that checked function that needs to be clicked,   to send that data to the Classic (IIRC).   Believe that hovering the mouse cursor over this button says something to that effect.

I was sure to click the button. Even went to a different menu... then came back. Box still ticked. Reboot cc via app. Box still ticked.
Qty 24 Sharp 153W poly panels, Midnite MNPV6 combiner, Midnite Classic 150 charge controller, Magnum MS-4448-PAE inverter with RC50 remote, Magnum MMP Mini panel,  QTY 2 Chinese made self-contained 200 AH wall mounted LFP power banks with built in BMS

5 Minutes 2 Midnite

#16
Quote from: Westbranch on July 13, 2017, 06:36:26 PM
use some denatured alcohol if you have it, it doesn't add anything to the adhesive

Only had isopropyl alcohol. No effect. Battery still reads .7v. Both surfaces look clean and shiny. I think sitting for 1.5 years had its effect. My theory of human created "systems" (burglar alarms, to computer backup systems, to possibly solar systems) is that they require being checked in on periodically. If you don't monitor them they will act like unattended children and go errant on you.

Can't even blame it on those cheap chinese batteries. Midnite spent the bucks on name brand Sony button cells.


Quote from: Westbranch on July 13, 2017, 06:36:26 PM
...also that second button needs to to be clicked each time any value is changed...  you will see, via the app, that some sections have only 1 value to be saved, others have several, to many, to change and save.

Thank you. I spotted that. Yeah, it did strike me that there is a save button for discrete groups of settings. And like I was saying, I was careful to leave the menu and come back to it. The tick box had remained checked. Even stayed checked through a reboot. There's another variable somewhere. I am crossing my fingers that the battery stores settings in flash memory other than the time. (?)
Qty 24 Sharp 153W poly panels, Midnite MNPV6 combiner, Midnite Classic 150 charge controller, Magnum MS-4448-PAE inverter with RC50 remote, Magnum MMP Mini panel,  QTY 2 Chinese made self-contained 200 AH wall mounted LFP power banks with built in BMS

australsolarier

i am having that update problem too. every day the status panel gets fogged over and report " error occurred whilst trying to update, please try again" 
then i need to click on the window several times to get back
it does this every day without fail
since years
3 midnite classic connected

5 Minutes 2 Midnite

I disabled updates and it still does it. So no longer suspect of my network. Assuming it's a firmware issue.
Qty 24 Sharp 153W poly panels, Midnite MNPV6 combiner, Midnite Classic 150 charge controller, Magnum MS-4448-PAE inverter with RC50 remote, Magnum MMP Mini panel,  QTY 2 Chinese made self-contained 200 AH wall mounted LFP power banks with built in BMS

Westbranch

What type of internet connections do each of you have? 
Ihave sattellite ... and I can no longer connect to MM2 DUE TO LATENCY ISSUES THAT CAN NOT BE Solved
sorry on a tablet,....






KID FW1811 560W >C&D 24V 900Ah AGM
CL150 29032 FW V.2126-NW2097-GP2133 175A E-Panel WBjr, 3Px4s 140W > 24V 900Ah AGM,
2 Cisco WRT54GL i/c DD-WRT Rtr, NetGr DS104Hub
Cotek ST1500 Inv  want a 24V  ROSIE Inverter
OmniCharge3024  Eu1/2/3000iGens
West Chilcotin 1680+W to come

ClassicCrazy

Quote from: 5 Minutes 2 Midnite on July 19, 2017, 02:12:16 AM
I disabled updates and it still does it. So no longer suspect of my network. Assuming it's a firmware issue.

Do you think it is possible your BMS is affecting it somehow ? Could you disconnect your BMS and see what happens then ?

Larry
system 1
Classic 150 , 5s3p  Kyocera 135watt , 12s Soneil 2v 540amp lead crystal for 24v pack , Outback 3524 inverter
system 2
 5s 135w Kyocero , 3s3p 270w Kyocera  to Classic 150 ,   8s Kyocera 225w to Hawkes Bay Jakiper 48v 15kwh LiFePO4 , Outback VFX 3648 inverter
system 3
KID / Brat portable

Westbranch

5M2M please include the FW, Net and MNGP versions in your sigline
KID FW1811 560W >C&D 24V 900Ah AGM
CL150 29032 FW V.2126-NW2097-GP2133 175A E-Panel WBjr, 3Px4s 140W > 24V 900Ah AGM,
2 Cisco WRT54GL i/c DD-WRT Rtr, NetGr DS104Hub
Cotek ST1500 Inv  want a 24V  ROSIE Inverter
OmniCharge3024  Eu1/2/3000iGens
West Chilcotin 1680+W to come

australsolarier

well, the mm2 works all right for me. it just the update for the status panel. every day at 14.30 aest or there abouts it tries to update. i don't know whether the internet provider blocks it.
when last looking though, i don't think there is a new update on the midnite site anyway. it is just a thing we could do without.

for example windows 10 thinks that 2029 firmware file is a dangerous something. whilst moving it from one hard drive to another it lets you know. and does not want to copy past it.

Westbranch

Australsolarier, is that the local status App you are having issues with?  There have been a couple updates of Adobe lately... and I have had issue with getting a good dwnload of that...
KID FW1811 560W >C&D 24V 900Ah AGM
CL150 29032 FW V.2126-NW2097-GP2133 175A E-Panel WBjr, 3Px4s 140W > 24V 900Ah AGM,
2 Cisco WRT54GL i/c DD-WRT Rtr, NetGr DS104Hub
Cotek ST1500 Inv  want a 24V  ROSIE Inverter
OmniCharge3024  Eu1/2/3000iGens
West Chilcotin 1680+W to come

australsolarier

yes the local status application. and yes adobe updates without problem, after you close the local app. it is the update of the local application itself.

"AN ERROR OCCURRED WHILST TRYING TO UPDATE  -  PLEASE TRY AGAIN LATER"
the same happens when trying to update manually. it does this on 7 different computers and laptops.

Westbranch

My laptop too when I start up...... but the local app still works! at least mine does.
Is your LApp NOT working?
I only use the LA for changing settings since I loaded Graham's Android version on my tab...
KID FW1811 560W >C&D 24V 900Ah AGM
CL150 29032 FW V.2126-NW2097-GP2133 175A E-Panel WBjr, 3Px4s 140W > 24V 900Ah AGM,
2 Cisco WRT54GL i/c DD-WRT Rtr, NetGr DS104Hub
Cotek ST1500 Inv  want a 24V  ROSIE Inverter
OmniCharge3024  Eu1/2/3000iGens
West Chilcotin 1680+W to come

australsolarier

the application is working alright
the installation is in the shed and i have a designated laptop for all the solar things so i can follow them from inside the house so i do not have to run out into the shed every half hour or so

ClassicCrazy

Local Status App works fine here
0.3.66 version
I updated Adobe Air recently when it prompted me to - no problems.
using Windows 10 .
I tried the Check for updates on the app and it does say Error getting updates
But what I have in here is fine.
I guess if you are having problems I would uninstall everything and start out with fresh copy from Midnite
http://www.midnitesolar.com/firmwareReport.php?firmware_ID=4&firmwareProduct_ID=2&act=edit

Larry
system 1
Classic 150 , 5s3p  Kyocera 135watt , 12s Soneil 2v 540amp lead crystal for 24v pack , Outback 3524 inverter
system 2
 5s 135w Kyocero , 3s3p 270w Kyocera  to Classic 150 ,   8s Kyocera 225w to Hawkes Bay Jakiper 48v 15kwh LiFePO4 , Outback VFX 3648 inverter
system 3
KID / Brat portable

ClassicCrazy

I am seeing some funny behavior on my lithium system.
It went from Bulk to Absorb fast like it usually does - but then it went to Resting 38 unknown instead of float. After awhile it went to Float but wasn't letting any current through  even though the Whizbang was reporting -2 system amps . After awhile it slowly started letting some power through and is gradually climbing up current to get the system amps back to zero .  Seems like lithium batteries just confuse the brains of Classic - maybe because the Absorb is 56 and float is 54 - too close together for it ?  It is letting the net ah go to a negative value and 98% SOC even though the PV is plenty to handle the load .

Larry
system 1
Classic 150 , 5s3p  Kyocera 135watt , 12s Soneil 2v 540amp lead crystal for 24v pack , Outback 3524 inverter
system 2
 5s 135w Kyocero , 3s3p 270w Kyocera  to Classic 150 ,   8s Kyocera 225w to Hawkes Bay Jakiper 48v 15kwh LiFePO4 , Outback VFX 3648 inverter
system 3
KID / Brat portable

Vic

Hi Larry,

Believe that the later versions of the Classic FW  will make the transition from Absorb to Float,   and state that it is in Float for about 90 seconds.   If  the Classic is providing NO current after that interval,  is does go to Resting.   IIRC,  it does Rest at Reason 38,  as the Surface Charge of many/most batteries of reasonable Capacity can require a number of minutes to require Vflt to be reached (even with relatively large system loads).

Believe that one of the motivations for this change,  was that under certain conditions,   there could be a negative input current,   or similar (on Mike's NiFe bank,   and several other members,  here).

Personally,   prefer this change,   because,  to me,   this change makes the Classic more closely match the definition of Float.

Others have said that the Li battery banks are "quite stiff",   when this behavior was mentioned.

The LA banks here have a relatively larger voltage difference between Vabs and Vflt,  or course ...
FWIW,  Vic
Off Grid - Sys 1: 2ea SW+ 5548, Surrette 4KS25 1280 AH, 5.25 KW PV, Classic 150,WB, Beta Barcelona, Beta KID
Sys 2: SW+ 5548s, 4KS25s, 5.88 KW PV, 2 ea. Classic 150, WB, HB CC-needs remote Monitoring/Control, site=remote.
 MN Bkrs/Bxs/Combiners. Thanks MN for Great Products/Svc/Support&This Forum!!