Well, as usual in Tech forum, the topic unfolds past and beyond what the OP asked :)...
OP - throw that 50W out and get another 120W.
Rogue 2024 can handle 320W total, but it will handle 360W same well. You will lose "some" output exceeding 320W on "some" hours. It will clip the excess off. But this will only happen at peak hours and in summer and if there is no shade at all, and not too hot. Count on losing few % of the 40W difference between ideal output of 360W compared to 320W on a cool bright day. On any given day you will still get a lot more with 360W than with 240W. On a dark day you will be happy to have 360W 'cause it won't even come close to max 20A of this controller.
You can wire 3*120W in series or parallel, total Voc is probably below 100V limit of this charger. The only reason for not wiring 3*120W in series would be if you camp in bright sun and at the same time - in cold weather and/or at high elevations. Like in mountains in South-West somewhere.
Edit: disregard what I said about not wiring 3*120 in series. I forgot that they are not 24V panels. Wire them whichever way you like.
