Confusing the MPPT controller
Here I go with my ignorant self again, seeing something and thinking I can figure it out. ;) When I first got my original panels I talked to quite a few people including Mark at Rogue saying to run...
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It's not just while in bulk and MPPT mode. It happens in absorb too. I put the 220w back in and ran a log. The Voc, Vmp and watts/amp input from the two panels remained steady. What the controller accepted changed constantly. Array voltage, wattage, current all bounced up and down slightly in steps and then start over again. An example is the array voltage starting at 63.23v and in seconds dropping 63.11, 62.95, 62.66, 62.26v and then back up to 63.23v to start it over.
So as for why or how, I do not know but the mixed voltage and amps of the two panels didn't set well with the controller. I'll go through the logs of the mixed polys and see if it was happening there too.
So as for why or how, I do not know but the mixed voltage and amps of the two panels didn't set well with the controller. I'll go through the logs of the mixed polys and see if it was happening there too.
