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#61
The "Classic" charge controller / Re: Generator control with AUX...
Last post by ClassicCrazy - July 12, 2026, 01:31:14 PMIs this what you need ?
Aux1 State On 0x00004000 Aux 1 ON (aux 1 connector has V or relay is closed)
Aux2 State On 0x00008000 Aux 2 ON (aux 2 connector has V present)
https://www.midnitesolar.com/firmware/classic_register_map_Rev-C5-December-8-2013.pdf
Larry
Aux1 State On 0x00004000 Aux 1 ON (aux 1 connector has V or relay is closed)
Aux2 State On 0x00008000 Aux 2 ON (aux 2 connector has V present)
https://www.midnitesolar.com/firmware/classic_register_map_Rev-C5-December-8-2013.pdf
Larry
#62
The "Classic" charge controller / Re: Generator control with AUX...
Last post by qcda1 - July 12, 2026, 01:02:04 PMSo this works like a charm. The generator start and stop at the programmed parameters.
The only issue is the lack of documentation on the registers for the current firmware.I was able to determine that the lower and upper limit of SOC are registers 4166 and 4172 respectively. I miss the register that contain Aux1 state... That's a bugger since I would like to add these to my Home Assistant integration module.
https://github.com/qcda1/ha_midnite_classic
The only issue is the lack of documentation on the registers for the current firmware.I was able to determine that the lower and upper limit of SOC are registers 4166 and 4172 respectively. I miss the register that contain Aux1 state... That's a bugger since I would like to add these to my Home Assistant integration module.
https://github.com/qcda1/ha_midnite_classic
#63
The "Classic" charge controller / Re: Classic 150 cooling hack
Last post by ralph day - July 12, 2026, 07:09:00 AMIve done similar. A fan hanging above my Classic 250 blowing down on it. It's controlled by Aux 1 on Daylight I think. Runs during the day. Also have drilled 1/4 inch hole grid on the lower part of the cover since all the holes are filled with conduit.
You could try a solid state relay run off Aux of the 150. They're cheap enough.
You could try a solid state relay run off Aux of the 150. They're cheap enough.
#64
The "Classic" charge controller / Re: Classic 150 cooling hack
Last post by ClassicCrazy - July 11, 2026, 11:22:47 AMNice job !
Larry
Larry
#65
Barcelona / Re: Barcelona
Last post by Brucey - July 11, 2026, 09:31:17 AMQuote from: stjohn on July 09, 2026, 04:19:13 PMGood Day Larry,If you had a missing menu setting, assuming support had you do a factory reset to defaults already?
Wow, thank you for all of the information. I did finally get through to James (tech support) but took a few more attempts. He also explained similar to you , the breaker wiring. I trusted what I saw but was curious as to why.
48 hours now since I fully commissioned the Barcelona and it is definitely working. I just may need some additional help in some tweaks with either or bot the Barcelona and the Schneider XW's I am seeing near 7000 watts out of the PV today (max rated 7740) (still have lots of Saharan dust / haze) but it shows me the Barcelona is getting plenty of power. It spent most of today charging the (12) EG4 LL from under 40% soc to now 98% soc.
That is too long a period of time compared to when I had the Classic 200's and (18) 300 PV Monday. And I have one Classic still mounted and wired to the Midnite PDP but no PV input. Way too much to rewire everything to try a few new panels on the old Classic.
So I will reach out tomorrow and see if Ryan or James or if I am lucky Schneider support can assist diagnosing the issues I am having which are: why is it taking so long to charge batteries from 40% to 100% soc (like over 6 hours with average 6000 watts) to Barcelona? Next why are my loads (averaging 2500 watts all day) not being covered by the PV? Slow charging and no loads being managed by solar / batteries? See a attached pictures from this morning and around noon.
As for your software I am interested and have some PC experience but may be a little beyond me. I may be interested in paying for the Solar Assistant. How do I reach them?
Lastly, James was running through the menus with me (specifically the battery menu)and he mentioned that after Float setting the next was float time setting. I do not have that on my menu! He verified my firmware was latest and could not figure out why it is "missing" from the menu. Two days and so far I remain in bulk the entire day but then I am charging all day. There will be an answer I know.
#66
The "Classic" charge controller / Classic 150 cooling hack
Last post by Luis Salva - July 11, 2026, 09:21:09 AMHello all.
I've been a Midnite Solar customer for over 10 years but I'm new at the forum. I've recently installed a new solar system in my apartment running a single Classic 150 supplied by 12 Panasonic 330W panels. The ambient temperature here is never below 30 degrees C during summer. This caused the internal fans on my Classic to run frequently. Knowing that heat is electronics worst enemy, I finally found a way to cool down the classic. I got a 3D printed 90 degree duct that fits like custom built and supports a 140mm computer fan. Adding a PWM fan controller to the setup allows me to adjust the speed of the fan and the Classic operating temperature. I'm looking forward to add a thermostat for fully automatic cooling. The Noctua 140mm 3,000 RPM fan is fully capable for the job even at low speed. By posting this, I just want to share an idea on how to increase a Classic lifespan. Thanks.
I've been a Midnite Solar customer for over 10 years but I'm new at the forum. I've recently installed a new solar system in my apartment running a single Classic 150 supplied by 12 Panasonic 330W panels. The ambient temperature here is never below 30 degrees C during summer. This caused the internal fans on my Classic to run frequently. Knowing that heat is electronics worst enemy, I finally found a way to cool down the classic. I got a 3D printed 90 degree duct that fits like custom built and supports a 140mm computer fan. Adding a PWM fan controller to the setup allows me to adjust the speed of the fan and the Classic operating temperature. I'm looking forward to add a thermostat for fully automatic cooling. The Noctua 140mm 3,000 RPM fan is fully capable for the job even at low speed. By posting this, I just want to share an idea on how to increase a Classic lifespan. Thanks.
#67
Barcelona / Re: Barcelona
Last post by ClassicCrazy - July 11, 2026, 12:34:05 AMHome Assistant is an operating system. It will run on bigger raspberry pi like pi5 ( or maybe pi4) but I run it on a n95 beelink mini pc. Got this when prices were low a year or two ago . I have the mini pc running Proxmox server and the Home Assistant runs as a container on that. You can just do the whole pc of pi directly as Home Assistant OS .
Monitoring remotely is easy , there is a small program called Tailscale that you put in and then it makes a secure link which you can access from anywhere ( it doesn't need ports opened on the computer ).
I would have had some screenshots for you already but I can't copy and paste them here so have to do it a round about way.
I may have some saved already - if so I will add them now.
Monitoring remotely is easy , there is a small program called Tailscale that you put in and then it makes a secure link which you can access from anywhere ( it doesn't need ports opened on the computer ).
I would have had some screenshots for you already but I can't copy and paste them here so have to do it a round about way.
I may have some saved already - if so I will add them now.
#68
Barcelona / Re: Barcelona
Last post by stjohn - July 10, 2026, 06:12:44 PMAgain many thanks Larry. All very helpful
I did a search for Solar Assistant. Really not confident as to what I am looking for. I did not see any Midnite products listed.
You just mentioned Home assistant is that your software? In either case I truly would like to monitor and even better remotely monitor so if you can nudge me along some more ....
I did a search for Solar Assistant. Really not confident as to what I am looking for. I did not see any Midnite products listed.
You just mentioned Home assistant is that your software? In either case I truly would like to monitor and even better remotely monitor so if you can nudge me along some more ....
#69
Barcelona / Re: Barcelona
Last post by ClassicCrazy - July 10, 2026, 03:21:27 PMDepending on what your bms wants to see to reset the soc to 100% , and what it is programmed to balance the cells at , that determines some of what your setpoints should be.
Since I am using JK Inverter Bms in my batteries and can change the bms setpoints, what I use is what Andy at Off Grid Garage on youtube recommends. I charge to 55.2v which is 99% full. I have absorb time set to 30 minutes but might be longer- I would have to look again. That holds it at 55.2v so the bms can balance the cells if needed. I have been floating at about 54v and some of that depends on what the inverter likes to see when it turns on during a heavy load so it doesn't drag the voltage down too low before the controller can ramp up the pv input to meet the load.
If you want to do some really good monitoring and automations that you can set up however you want, I would suggest you get Home Assistant running.
Larry
Since I am using JK Inverter Bms in my batteries and can change the bms setpoints, what I use is what Andy at Off Grid Garage on youtube recommends. I charge to 55.2v which is 99% full. I have absorb time set to 30 minutes but might be longer- I would have to look again. That holds it at 55.2v so the bms can balance the cells if needed. I have been floating at about 54v and some of that depends on what the inverter likes to see when it turns on during a heavy load so it doesn't drag the voltage down too low before the controller can ramp up the pv input to meet the load.
If you want to do some really good monitoring and automations that you can set up however you want, I would suggest you get Home Assistant running.
Larry
#70
Barcelona / Re: Barcelona
Last post by stjohn - July 10, 2026, 01:53:24 PMLarry, good afternoon.
No the dual Schneiders have the AC charging disabled. I probably used that feature two times in 13 years. Just the (18) Silfab 430's and the Barcelona (previously the (18) Solar world 300 and the two Classic 200's
You are right to not trust the SOC and I never do but I use it for a quick reference. It SOC may have been lower than the soc shown. After I posted yesterday the Barcelona was still charging at 6pm and was still in bulk but voltage was 55.1 the went to resting a short time later (sunsets at 7pm). Also all but two batteries were at 100% soc and were within a tenth or two of a volt of each other. I was satisfied.
Today another (been almost two weeks of this weather) a hazy (Sharan dust) causing overcast and hazy conditions. I have been out most all morning and when I returned batteries at 54v and the Barcelona was resting and my typical load at 2500 watts. This brings in another question / issue. Why am I resting when I could be selling to grid and suppling my loads? I am net metered and sell is enabled.
To answer your other question which may also be a partial answer to my last question. My setpoints. Please which ones do you want to see?
At this point I believe the Barcelona is working properly (maybe a little tweaking) but the Schneiders may be the culprit. The other day James had me change the absorb voltage from 55.2 to 56.2. But I have not reached absorb yet in three days now.
No the dual Schneiders have the AC charging disabled. I probably used that feature two times in 13 years. Just the (18) Silfab 430's and the Barcelona (previously the (18) Solar world 300 and the two Classic 200's
You are right to not trust the SOC and I never do but I use it for a quick reference. It SOC may have been lower than the soc shown. After I posted yesterday the Barcelona was still charging at 6pm and was still in bulk but voltage was 55.1 the went to resting a short time later (sunsets at 7pm). Also all but two batteries were at 100% soc and were within a tenth or two of a volt of each other. I was satisfied.
Today another (been almost two weeks of this weather) a hazy (Sharan dust) causing overcast and hazy conditions. I have been out most all morning and when I returned batteries at 54v and the Barcelona was resting and my typical load at 2500 watts. This brings in another question / issue. Why am I resting when I could be selling to grid and suppling my loads? I am net metered and sell is enabled.
To answer your other question which may also be a partial answer to my last question. My setpoints. Please which ones do you want to see?
At this point I believe the Barcelona is working properly (maybe a little tweaking) but the Schneiders may be the culprit. The other day James had me change the absorb voltage from 55.2 to 56.2. But I have not reached absorb yet in three days now.