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I purchased a Growatt SPF 3000TL LVM-ES and am trying to figure out what the solar mppt max voc is. In the manual on page 4 it says the mppt range is 150v - 250v and a voc of 300v. But on page 12 it says max PV array open circuit voltage is 250v. If the unit can handle it I would like to set my...

The technical section at the end of the book says max PV open circuit voltage is 250vdc, which is also what is says on page 12. I’m guessing they made a mistake in the features section of the manual, which is probably something they need to fix.

Yep. To be fair, the gentleman I spoke with for technical support said he was fairly new to the solar industry. I would have preferred for him to say: that’s a good question, I’ll send our engineers a message and see if I can get get clarification.

I have not done any temp adjustment calculations yet but will when I figure out the max voc so that I leave plenty of headroom. I wasn’t sure if the manual was contradicting itself because the verbiage is written differently on each page. Just hoping someone else had come across this before that...

I purchased it from signature solar and the manual is available on there website. Here’s a screen shot from page 4 of features that states 300v voc.

I think it can.

I spoke to signature solar and didn’t really get a clear answer. I was told the 300voc referenced in the manual is for when panels aren’t hooked up and have a open circuit(voc) but the inverter’s voc is 250vdc. So my next question was why is 300voc referenced in the manual. Answer: because...

It also states 300voc in the features presented on the signature solar website.

It’s been great so far.

That's what I thought. I had planned to connect the grid to the inverter input and use it through the auto transformer. I didn't realize the neutral wires had to be separate before I purchased. I am planning to use the generator transfer switch because it is already wired and has the...

Or they have been great so far. I have two of them running with solar assistant.

My battery type is user 2, with my parameters manually set.

I ordered it from signature solar today. I was trying to figure it out before I ordered so that I wouldn’t have to return it.

I used the bms test software to monitor the battery from my pc. You evidently need a password to view historical data. Does anyone know what the password is?

I

I don’t think the older model SC4880 can communicate with the battery. The newer model SC4880-MPV has a communication port on the side of the unit. It can be configured to communicate with either the eg4 battery or the Growatt inverter. It comes with a document/small booklet containing the...

Just curious if anyone here might be familiar with the Growatt SC4880 from signature solar. The features on the website and the spec sheet on the website shows 250voc but the technical description of the manual on the website says 150voc. I contacted tech support and they were not sure.

I very recently purchased (still in the boxes) the SPF 5000es USA model and the growatt At-5000 transformer from signature solar as a package deal. My intention was to use the AC input function, as outlined in the manual, along with solar and battery and send the AC output to a generator...

Thank you for the clarification, that’s what I needed to know.