To visit MidNite Solar click this link www.midnitesolar.com
Started by MountianComm, December 16, 2022, 04:49:27 PM
Quote from: MountianComm on February 16, 2023, 11:08:52 PMI guess I need to ask this straight forward. At what battery voltage will the Classic 150 (Configured for 48V)shut off?Clearly it is above 44.9 volts, which was the last recorded voltage before my Classic 150 went offline.And at what voltage will/should it turn back on?I am not the only person who has experienced this problem. A fellow cohort with a similar system suffered the same issue.Jim
Quote from: MountianComm on December 16, 2022, 04:49:27 PMI have a classic 150 that doesn't seem to be charging. Setup:12 Jikno JKM410M-72HL-V panels wired 2 in series by 6 parallel, produces just shy of 5kw full sun.MNPVCombiner box with 15 amp breakers for each string.Classic 150 with whizbang.4 strings of Rolls L16 445 (yeah I know one string too many. 1800 AH capacity array is facing dead south at a fixed 60 degree angle, this time of year averages 5-6 hours of sunlightconstant load of 350wattsRemote IP monitoring of the Classic, and Conext inverter.The site is at 7300' on top of a mountain. For the last couple weeks the site has received about 4-5' of snow, I have couple cameras to monitor things outside.It would snow for a couple days then, get sun for a few days and repeat. trouble is the storms kept stacking up and I wasn't getting enough sun and they continued to discharge to 30%.The Conext inverter and the LVDC are programmed to disconnect at 44 volts and don't come back on until the batteries get to 48 volts.After the latest rounds of storms, the Classic wouldn't charge when the sun came out. I do have a camera on the back side of the panels but not one facing the panels (ugh). For 3 days I would watch the PV voltage on the classic come up to 97 volts all day, the charge current would fluctuate between 0-.2 amps. At night I would see 14-15 volts on the panels (leakage). The battery bank voltage steadily declined until it got to 44 volts and then the Inverter and LVDC did their job.I considered rebooting the Classic in the configuration menu in the monitoring app but was afraid it would have reset the classic and I wouldn't be able to access it remotely any longer.Usually, it takes one good day of sun to melt the snow and ice after each storm. I am on day 5 and nothing. The site is only access by snow machine this time of year so I won't be getting up there anytime soon.Should I have rebooted the classic in the App?Any ideas why I am seeing good input voltage but now current?I have configured the Classic to charger all the way down to 36 volts?Last I saw the batteries were sitting at 2degree C. They are inside an insulated box inside the building.