@jsmetalcraft - you'll need to find a circular 4-pin adapter to plug into the slot where the Solarman (IGEN) stick-logger goes. Circular Connector: Pin 1 = Positive 5 Volts, Pin 2 = Ground, Pin 3 = RS485+, Pin 4 = RS485-. For the life of me, I can't find out what the spec of the adapter is to order one. You can then just use a Raspberry Pi or similar with the Waveshare RS485<->Ethernet adapter and pymodbus to hoover up all metrics from the Megarevo. Some folks have done some pretty neat graphing of the metrics.
You can get the RS485 signal from the ethernet port I guess. Not sure if there is any suitable PC software.
Yes.
I am running 4s2p on each tracker. I am seeing 280-290 volts and should be just under 12 amps at max power.Yes.
Are you running any of yours in two strings on one MPPT to utilize its capacity? What's your panel layout look like?
Unless I mis-entered the specs wrong, I got max Voc of 94V at 4F, or around 470V for 5. Still cutting kind of close either way, but if I'm right, it's still under max capacity. And yes well over 3k/tracker, but I guess I fail to completely understand how over paneling a tracker can cause harm if amperage is a measurement of flow and the inverter will just limit flow at 12A This might cause V to go up, but it can still only go up to max Voc, correct?
I have this from GSL
This is going to be a solar newbie question. I have a design question about total voltage and amperage. The Megarevo is 12kW total across the four trackers, 500V and 12A total DC input. For the 4s2p setup of @jsmetalcraft with SunPower 435W panels - it's approx 290V and 11.94A for that setup (3.5kW). However, he has two 4s2p (from the picture) which would be 580V total (>500V) and and 11.94A each - how do you continue to add in more panels on other trackers and not go over the limit?
I read it as each input of the 4 PV inputs is able to take 500v and 12a. With the total wattage across all inputs as 12000 watts.
That's how I read it as well, but this could be another potential Chinglish to English misunderstanding. It could certainty use some clarification on their part as 500V @ 12A is 6000W... x4 is 24kW, twice the 12kW max they also mention.
In theory, being a HF inverter, it should behave the same since there's no internal/external autotransformer.
As I understand it, I would think all the HF inverters would have some protection built into them to protect the MOSFET's when severally out of balance under heavy load. It's just a matter of where they set the bar. But I could be completely misinformed.
I found this to confirm: It does say "Max.Input current of single MPPT(A)" so our thoughts appear to be correct. Each input is able to have up to 500vDC and 12a.
I wanted to inform everyone, I heard back from Jakiper batteries. They use pylon CAN communication. It should be able to communicate with their batteries.
