Classic 150 Incorrect Log Date

[crunnells]

So the date and time on the MNGP matches the date and time on the Classic (according to the Time menu). I just checked the Offline data with the Local App, and it shows up blank no matter how long I wait as seen in the attached screenshot.

I also pulled up the "config" panel, and it shows the correct date there as well, so wherever this problem is coming from, it's not related directly to the date settings.

Something is screwed up internally on this Classic. I don't care about the logs, I just want it to reset to Bulk every day.

boB, what do I have to do to get this thing RMA'd? They've had it for 8 months tops, and this has been a problem since day 1.

[Resthome]

You could of course fix the data in the CSV file after it is downloaded from the local app.


boB

From the screen shot all the data is bad not just the date. I'd still try to clear the data and see if it would clear out the bad data. But something is wrong with that Classic's logs.

[boB]

So the date and time on the MNGP matches the date and time on the Classic (according to the Time menu). I just checked the Offline data with the Local App, and it shows up blank no matter how long I wait as seen in the attached screenshot.

I also pulled up the "config" panel, and it shows the correct date there as well, so wherever this problem is coming from, it's not related directly to the date settings.

Something is screwed up internally on this Classic. I don't care about the logs, I just want it to reset to Bulk every day.

boB, what do I have to do to get this thing RMA'd? They've had it for 8 months tops, and this has been a problem since day 1.

Oh Man !  EVERY field appears to be loaded with "1"s  (for example, 0xFFFF)

Time to talk with Raechel or Ryan I believe.  I will make sure that they see this thread.

BTW, this is the first time I have seen this exact problem.   Thank you for uploading the screen shot !

[atop8918]

Yup, that looks like a bad EEPROM somehow -- all 0xFF.

[boB]

Might be a bad solder connection ?

[crunnells]

That's entirely possible. It still makes a slight "bzzt" sound every couple of minutes from inside the unit (behind the main board somewhere) which sounds like it could be a short. It seems to do it whenever the Classic sweeps the array. I could be wrong about this; I haven't tried timing it, but it does seem to coincide with the Classic seeking a better power point.

[Vic]

If this slight buzz sound is associated with a sweep,    if the sweep pulls the PV input voltage to within a few volts of Vbattery,  then the inductors will make a (usually) soft buzzing sound,  which is normal for most MPPT CCs that I've seen.  FWIW.  This may not be what you are noticing.     Vic

[crunnells]

Possibly, but PV voltage is ~80v and batteries are ~24v. The setup is nearly identical to mine, but I've never heard a sound like that come from my Classic. I pulled the cover off to try and identify the source, but it's *behind* the main board somewhere, so I couldn't look for solder cracks or anything like that.

[Vic]

OK,  and the noise that I was referring to is usually more like a musical note.
Typically the Classics sweep very fast,  in Solar mode.  But,  in lower light conditions,  the sweeps can take some time ...   Done guessing.   Good Luck,    Vic

[crunnells]

Vic, it's a good guess, but I've noticed the buzzing more at peak sun when the array is putting out near maximum wattage (so between 10am and 2pm typically). At this point I'm just hoping Midnite will take it back and figure out the problem. This isn't something I feel like I can troubleshoot any further, and the fact that these problems were present when we bought it makes me wonder. We ordered an MNSPD along with the Classic, and it arrived DOA as well (something I didn't realize until recently).

[boB]

crunnells, for the buzzing, turn off LMX  (LowMax)   in the TWEAKS menu.

[crunnells]

Just turned off lomax and it still makes that arcing buzz sound.

RMA is in the works so it'll be interesting to see what you guys find.

[boB]

Just turned off lomax and it still makes that arcing buzz sound.

RMA is in the works so it'll be interesting to see what you guys find.

Oh ?   OK...  That's pretty weird.  could it be the turbo fan making a buzzing noise ?

[crunnells]

It sounds exactly like an electrical arc; not a transformer buzzing, or fan blades hitting an obstruction, or a bug, or a phone on silent mode.

[crunnells]

I should note that you probably *wouldn't* notice the sound if the turbo fan was running. It's quiet enough that you can hear it from a couple of feet away, or as close as you'd need to be to look at the LCD screen on the Classic.