More like 135W idle for my unit
MPP-Solar LVX-6048
- Thread starter jasonhc73
- Start date
Thanks @niktak11. Has it been reliable? I would leave this on all the time when not at the cabin.
iamrich
Solar Addict
3.2kwh per day in idle power is no joke. I plan on running two of these. Figure the unit will use that everyday regardless of how much sun you get. I plan on running a 15-18kw array on the roof so the idle draw doesn't worry me too much, but battery size will be a factor for you (and me). I plan to start with about 30kwh of batteries and add from there.
It worked fine for me for the year that I used it. It has been demoted to my backup inverter now that I have a Sol-Ark.
AmericanSilverback
New Member
Out of curiosity, what is the inverter "doing" do use 135 watts idling? Is it monitoring something? Is that something that a firmware could change depending on what parameter dictates such "monitoring"? Just thinking out loud...
The inverter board + transformer uses a lot of power when it is active. The fans also use more than they need to at idle but that's only maybe 5-10W wasted.
These all in ones are not optimized. A Schneider XWpro 6848 low frequency uses <40w and add the 100a 600v charge controller which uses <1w…yes 1w at night.
iamrich
Solar Addict
The price difference is $1500+ which has always been the story between Tier 1 equipment and non-tier 1. I can buy a lot of extra panels or an extra battery for $1500 to account for the inefficiency. The age old argument
Eber
Student of MacGyver
The situation gets even worse when you factor in a simple PowMr hybrid unit (5kw 500 VOC) and only use the charging section of it. Cost 1/2 the Schneider charge controllers and lets u beef up your system to 12k watts (PV) when used to charge the batteries with the LVX6048. It was just sort of an experiment to see if it would work as a cheap charge controller.
But it works great and PowMr shuts off at night. dunno if it draws anything at night, never even knew to check until now.
I wish the LVX6048 used less ideling power, but I dont notice it (for now) at all. SOC shows still full four lights (full charge) on my battery bank when I get up in the morning. I am sure it will be different this winter.
But it works great and PowMr shuts off at night. dunno if it draws anything at night, never even knew to check until now.
I wish the LVX6048 used less ideling power, but I dont notice it (for now) at all. SOC shows still full four lights (full charge) on my battery bank when I get up in the morning. I am sure it will be different this winter.
The LVX6048 can charge from solar even with the inverter off if you're trying to just use it as a charge controller
Eber
Student of MacGyver
LVX is powering my home. and is 2 times the cost of the PowMr. I do like my LVX6048, its awesome.
travisandblair
New Member
- Joined
- Jun 3, 2022
- Messages
- 11
I have had an lvx6048 powering my shop for about a month now. I wired it to a breaker box in the shop that mainly runs power tools during the day and a fridge and intermittent lights at night. I have had some weird things happen with it. I recently wired my 38' 5th wheel camper 30 amp plug into it for an RV hookup site for guests. The single AC unit broke the system but I think it might be my undersized battery bank (single 110 ah 48v battery). The AC works during the day, but drains the battery at night. I have had it trip the battery and the lvx a couple times with strange codes. I am running about a 5800 watt solar array (2x10panel strings in parallel). Overall I am happy with it, but this was my experiment before I did my whole house on solar. For a whole house I will go with a different system that doesn't have so much of an idle draw (2.4 amps from the battery minimum according to my BMS).
Eber
Student of MacGyver
Understandable with a small battery bank. I did not mention that I was using 6 of those eg4 batteries.
When I run my AC all night, sometimes they show 3 lights instead of 4 on the SOC lights the next day.
I am thinking that MPP recommended 30kw battery bank also.
But the idle draw should be less for sure.
iamrich
Solar Addict
Setting one would be SBU:
Program 01: Solar energy provides power to the loads as first priority. If solar energy is not sufficient to power all connected loads, battery energy will supply power to the loads at the same time. Utility provides power to the loads only when battery voltage drops to either low-level warning voltage or the setting point in program 20 or solar and battery is not sufficient.
Program 20: Battery stop discharging voltage when grid is available. Default setting: 46V Setting range is from 44V to 51V and increment of each click is 1V.
LVX6048 would rely on solar unless the load was too much, and then it would add battery until the voltage hits the Program 20 setting, then it would start using grid. If solar is 0, and battery is lower than Program 20, the invert would use all grid.
Hi, were I can find this information.
iamrich
Solar Addict
Hello all, I see a couple posts in this thread linking to firmware updates. I can't seem to find any release notes or description of what the updates do. I believe I am on 6303. Does anyone know what 6304 or 6305 change?
Related question: I'd like to set my menu 20 - "Battery stop discharging voltage when grid is available" voltage higher than the maximum allowed value (51v). My batteries are between 5-10% SOC at that voltage and I'd like to move that up. Thanks!
Related question: I'd like to set my menu 20 - "Battery stop discharging voltage when grid is available" voltage higher than the maximum allowed value (51v). My batteries are between 5-10% SOC at that voltage and I'd like to move that up. Thanks!
dominickmarino
New Member
- Joined
- Aug 19, 2022
- Messages
- 6
Greetings everyone, I built a system with 40kWh of batteries and three LVX6048 inverters powering an off-grid ranch and I have a curious issue. Beyond this issue the system is fantastic.
Every few nights, the power blips off and on for a few seconds. It is not every night but it only occurs at night. This is not related to overload as the loads are far under 50% of inverter capacity. Finally, this appears to have no correlation to battery SOC. I've also had them shut off two of the inverters and it still occurs.
Settings
SUB
APL
Photo Note
Suspected the resets might have been due to noise from ac output getting into the balance/current sharing cables so those are now unbundled from the ac lines and ran separately.
Thank you!
Every few nights, the power blips off and on for a few seconds. It is not every night but it only occurs at night. This is not related to overload as the loads are far under 50% of inverter capacity. Finally, this appears to have no correlation to battery SOC. I've also had them shut off two of the inverters and it still occurs.
Settings
SUB
APL
Photo Note
Suspected the resets might have been due to noise from ac output getting into the balance/current sharing cables so those are now unbundled from the ac lines and ran separately.
Thank you!
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