Yamaha 2000iS and softstart with AC?
I have a older Yamaha 2000iS (not sv2) and a Magnum 3012 hybrid inverter but can’t run an AC due to the poor surge capability of the generator (it drops voltage too fast for inverter to ‘support’ it s...
Forum Discussion
Itinerant1 - watching the arc50 battery current draw is how I saw those numbers. I don’t fully understand why starting the AC when the generator was on and Magnum3012 in load support showed numbers higher than when I started the AC just on the 3012 without the generator involved. I suspect some of the issue is sampling, as well as syncing behavior of the 3012 as it attempts to titration current with the generator involved…but I do know the generator was bogging down during this as was the AC.
With that said, I tried it two or three times and got similar results: arc50 shows +30A or so charging batteries from generator; AC turned on and current swings momentarily to -400A 12v current or so, oscillates briefly then 3012 kicks generator out and settles down to -180A (had some lights and other things on) running AC fine; after little bit 3012 tries to bring generator back in (still running) and current jumps back up to -400A range again. After a few sequences watching this oscillatory behavior I chose to run AC off of batteries alone for an hour or so (it was HOT out) but didn’t want to subject my AC to any further experimentation.
I discussed all of this with Magnum tech support and their only suggestion was to lower VAC cutout voltage allowing more time for 3012 to establish load support instead of source replacement…again, I’m not inclined to continue experimenting to the detriment of my AC. I’m convinced my Yamaha2000iS just isn’t the generator for the job
With that said, I tried it two or three times and got similar results: arc50 shows +30A or so charging batteries from generator; AC turned on and current swings momentarily to -400A 12v current or so, oscillates briefly then 3012 kicks generator out and settles down to -180A (had some lights and other things on) running AC fine; after little bit 3012 tries to bring generator back in (still running) and current jumps back up to -400A range again. After a few sequences watching this oscillatory behavior I chose to run AC off of batteries alone for an hour or so (it was HOT out) but didn’t want to subject my AC to any further experimentation.
I discussed all of this with Magnum tech support and their only suggestion was to lower VAC cutout voltage allowing more time for 3012 to establish load support instead of source replacement…again, I’m not inclined to continue experimenting to the detriment of my AC. I’m convinced my Yamaha2000iS just isn’t the generator for the job
