Trying to understand how Rosie will operate with input from my 120v 3000 watt generator. The max output from the larger output terminal on the generator is 23 amps. Would like to know how to set up Rosie settings for continuous generator operations without it being knocked offline from Rosi trying to draw more power than the generator can supply.
Rosie is connected to an essential load panel with several 120v loads and one 240v load, my water well, which pulls 2900 watts when it operates for aprox 2 min. Battery pack is Li4 30kw.
Scenario 1: typical load is 500-800 watts, usually a 60/40 split between L1 & L2
Scenario 2: typical load, then well clicks on, load climbs from 600 watts to 3500 watts
I assume Rosie battery charger should be selected ON when operating with the generator? Just wanted to verify as I normally leave the battery charger OFF and charge the battery with PV only.
Thanks all for your insight! Finally got the generator input connector box installed and ready to test, but would like to get an idea of how Rosie SHOULD operate before I throw the switch :)
Dave
Bumped this back up as there were no comments.
Any input from the scenario above running 120V generator into Rosie?
Would also appreciate the Rosie settings for generator input please, any specific settings that should be changed versus Utility Grid input? I have the Rosie input lead connected to a On-Off-On switch, one side Utility and the other to a generator box. All works fine in the Utility position, so wiring to this point are good.
I went ahead and tried the generator today and could not get Rosie to accept the generator power. I tried both a Honda EU2000 120v and a Honda EU3000 120V. I have 2 self-made cables that worked on a previous Magnum PAE 4048 inverter, but not for the Rosie. The Gen Status page showed a straight 75Hz or a fluctuating frequency below 58Hz, no voltage, so would not connect. The INV button DID show 124V on L1 & L2 though. The other cable showed freq 0 Hz and a voltage between 124-128v. A frequency meter plugged directly into the generators registered 59.9 HZ freq on both machines. Error messages on Rosie included. Low Frequency, High Frequency, and Waveform along with the flashing RED error lite.
Any comments on making a generator cord from a 120v genset to 240v input box? Should I connect the one hot lead from the L5-30 to a single hot lead on the L14-30 or to BOTH L1 & L2? I purchased a short 1' ready molded L5-30 to L14-30 pigtail that connects the 120V single hot lead to BOTH L1 & L2 on the L14-30. This pigtail was connected to a known good straight L5-30 cable on both ends and gave me the 75Hz or fluctuating low frequency reading as described above. Thanks all for your input!
Dave
I have used the EU2000 in my RV with RosieM (RV version). I think the issue is the 2000EU does not bond GROUND to NEUTRAL. I had to go rescue my wife once with the 2000EU when she ran the LEAF EV battery down, the charger would not connect. That is when I figured it out, I took the receptacle out and put a jumper from the ground screw and the neutral screw and it worked. When I use it with my RV I had to use GRID mode, set breaker size to 10A and charge to 5A to get any connection to work. I also had to set GRID SUPPORT to BREAKER which lets Rosie assist the generator.
Quote from: Wizbandit on March 31, 2025, 03:43:33 PMI have used the EU2000 in my RV with RosieM (RV version). I think the issue is the 2000EU does not bond GROUND to NEUTRAL. I had to go rescue my wife once with the 2000EU when she ran the LEAF EV battery down, the charger would not connect. That is when I figured it out, I took the receptacle out and put a jumper from the ground screw and the neutral screw and it worked. When I use it with my RV I had to use GRID mode, set breaker size to 10A and charge to 5A to get any connection to work. I also had to set GRID SUPPORT to BREAKER which lets Rosie assist the generator.
Thanks James for the settings.
Did you keep the GOUND & NEUTRAL bond wire in place when you used the EU2000 w/the mobile Rosie?
I will try again tomorrow once new L14-30 ends are delivered and I remake the cable. I removed the ends of the black self-made cable (not by me) and discovered it was wired as a 240 cable on both ends, even the L5-30, and the ground wire wasn't used (cut off) on the L5-30, maybe a 'floating ground? I believe it was wired for an older generator that had an L5-30 receptacle for 240v ops. Also found the L2 wire was not pinched properly in its slot, but actually wedged behind the tightening plate. Might explain the varying frequency readings. I should never have trusted a self-made wire, even with correct ends, without verifying for myself!!! I will wire so the EU2000 120v circuit feeds just the L1 side of the L14-30 (Rosie Input) & not bridge L1 & L2 together. I'll keep the Ground/Neutral bond in mind if this doesn't work. Thank goodness Rosie is resilient enough to recognize the crap it was receiving and reject it!!!
Dave
Quote from: Wizbandit on March 31, 2025, 03:43:33 PMI have used the EU2000 in my RV with RosieM (RV version). I think the issue is the 2000EU does not bond GROUND to NEUTRAL. I had to go rescue my wife once with the 2000EU when she ran the LEAF EV battery down, the charger would not connect. That is when I figured it out, I took the receptacle out and put a jumper from the ground screw and the neutral screw and it worked. When I use it with my RV I had to use GRID mode, set breaker size to 10A and charge to 5A to get any connection to work. I also had to set GRID SUPPORT to BREAKER which lets Rosie assist the generator.
Hi Wizbandit. Tested the generators w/the new self-made cables and all worked fine with Rosie without having to jump the Neutral-Ground wires. The EU2000, in EITHER Generator OR Grid mode, worked up to 12 AAC amp setting, about 1900 watts. The 9 or 10 AAC (1600-1700 watts)seemed to be the best at running flat out without any surging. The EU3000 also worked in either Generator or Grid mode as well, with a max output setting of 22 AAC, about 2850 watts. At 23 AAC, the generator kicked off the input after a short run. My loads were light, around 500 watts, so I had the Charger ON to have a load exceeding what the generators could supply, testing their upper capacity before disconnecting.
Dave