Luxpower inverter LXP-US 12k. Firmware FAAB-2122 and 6 Ruiux RX-LEP48100 19” Rack Batteries

[double o]

I would like to review our issue with Luxpower inverter LXP-US 12k. Firmware FAAB-2122 and 6 Ruiux RX-LEP48100 19” Rack Batteries, in parallel in a Ruiux cabinet. The Luxpower inverter is about 4 months old and the Ruiux batterie about 1 year old, and are well balanced. Originally we used the yellow communication cable that came with the Luxpower inverter and connected it to the bottom rack battery and the top rack Master battery connected to our lap top using the Ruiux cable. The Inverter was programed for Lithium and programed for Luxpower Batteries. At the beginning we were manually inverting the inverter and going on battery power from about 8 in the morning to about 10 at night. We then would manually go back to grid power and recharge the batteries over night and repeat the process for about 2 months. Every thing went really well until we started getting a red battery symbol on our inverter screen and a Notice W004 Battery Status Check on our Luxpower Data Event History screen. This became a constant Notice event. On our Data Data History screen we receive a consistent “Standby” in the Status column. We have no panels.

We have tried the following to eliminate the W004 issue

Moved the inverter cable from the bottom battery to the Master Battery. No change. Still using the yellow Inverter communication.

Using the Lithium we tried several different battery types and no change. Still using the yellow inverter communication cable.

Bought a Cat5 and a Cat6 cable from Amazon and repeated many of the above. No change. Note. When we did use the Cat 6 cable we did get a 2 hour plus delay before we started getting the W004 Notice.

We were advised to set to Lead Acid and surprise the two seemed to get along a lot better. With Lead Acid we have no battery communication on our Luxpower program.

In the future our hope is to have panels and we are not sure how the Lead Acid Battery will work with the panels or not work. We still have to figure out a couple of settings to make sure the system is ok for Lead Acid, HOWEVER, we would REALLY like to be able to use the Lithium setting. Any advice and direction would really be appreciated.

 

[rogerheflin]

what is the voltage and SOC of the batteries when they get that error? Verify that when it is 100% that the voltage agrees.

A lot of BMSes have a bad habit of reporting 100% when the BMS thinks the battery(via keeping track of current--badly) is full (but often voltage says it is not) and if you go long enough doing that each cycle "reported 100%" has a few % lower "real SOC". And eventually "reported 100%" becomes "real 30%" or something similar.

If the voltage says it is not 100% investigate if you can get a BMS firmware update to work better, and you probably need to figure out what BMS those batteries have inside them.

 

[fnnwizard]

I would like to review our issue with Luxpower inverter LXP-US 12k. Firmware FAAB-2122 and 6 Ruiux RX-LEP48100 19” Rack Batteries, in parallel in a Ruiux cabinet. The Luxpower inverter is about 4 months old and the Ruiux batterie about 1 year old, and are well balanced. Originally we used the yellow communication cable that came with the Luxpower inverter and connected it to the bottom rack battery and the top rack Master battery connected to our lap top using the Ruiux cable. The Inverter was programed for Lithium and programed for Luxpower Batteries. At the beginning we were manually inverting the inverter and going on battery power from about 8 in the morning to about 10 at night. We then would manually go back to grid power and recharge the batteries over night and repeat the process for about 2 months. Every thing went really well until we started getting a red battery symbol on our inverter screen and a Notice W004 Battery Status Check on our Luxpower Data Event History screen. This became a constant Notice event. On our Data Data History screen we receive a consistent “Standby” in the Status column. We have no panels.

We have tried the following to eliminate the W004 issue

Moved the inverter cable from the bottom battery to the Master Battery. No change. Still using the yellow Inverter communication.

Using the Lithium we tried several different battery types and no change. Still using the yellow inverter communication cable.

Bought a Cat5 and a Cat6 cable from Amazon and repeated many of the above. No change. Note. When we did use the Cat 6 cable we did get a 2 hour plus delay before we started getting the W004 Notice.

We were advised to set to Lead Acid and surprise the two seemed to get along a lot better. With Lead Acid we have no battery communication on our Luxpower program.

In the future our hope is to have panels and we are not sure how the Lead Acid Battery will work with the panels or not work. We still have to figure out a couple of settings to make sure the system is ok for Lead Acid, HOWEVER, we would REALLY like to be able to use the Lithium setting. Any advice and direction would really be appreciated.

I'm not sure how you had that AIO (12k) communicating with the slave pack (were you using rs485 to aio)?

Much better to use CAN to AIO. You can use communications ( closed loop) and under V also instead of SOC for better fine tuning. The Ruxui has rs485 (pins 1+2 and 7+8) in the same port as the CAN port ( pins 4+5).

In "standby", was that at full charge or near depletion?
Can you post AIO data history to show soc/V?
Can you post cell V data from laptop app when inv thinks its close to fully charged? Most likely a cell or more is/are out of balance.

 

[double o]

As of today we are on Lead Acid with our Lexpower 12x inverter. Ruiux and Lexpower customer service have been good in responding but so far we still have a communication problem between our Ruiux Battery pack and our Lexpower inverter. So, my question no is can we go forever with the Lead Acid program and can we install panels and have a good functional system? Is there anyone using this combination of inverter and battery pack that has either had no issues or solved the same problem. To answer a question or two above we balanced each individual battery by taking each battery individually to 0 then recharged to 100%. They have been in balance ever since. We have tried making various CAN cables but no luck. We took a CAT5 cable and also a CAT6 cable, cut the outer coating in the middle of the cable to expose the twisted pairs. Then we tried different splicing per all examples we found on the net and in instructions. Nada. So, here we are. Thanks again for your help and comments.

 

[ksmithaz1]

I have two 18Kpv's and a Rack of 6 RUiXU's (and 6 EG4's).

Did you download the latest firmware/tools from the RUiXU site/forum and flash all the cells? If not do so.

Follow the Luxpower instructions as listed on the web site. The cable I use is a standard straight thru ethernet cable. I can't look right now, I think 2:Lithium/Type 6 is the setting on the EG4 side. Something with comm broke to the RUiXU's during one of the later firmware upgrades on the 18Kpv's that did not recover without the firmware update and settings change, but I don't remember what it was. When it failed I just jumped over to the RUiXU site and updated, and noted the recommended change for the lithium type.

 

[ksmithaz1]

I have two 18Kpv's and a Rack of 6 RUiXU's (and 6 EG4's).

Did you download the latest firmware/tools from the RUiXU site/forum and flash all the units? If not do so.

Follow the Luxpower instructions as listed on the web site. The cable I use is a standard straight thru ethernet cable. I can't look right now, I think 2:Lithium/Type 6 is the setting on the EG4 side. Something with comm broke to the RUiXU's during one of the later firmware upgrades on the 18Kpv's that did not recover without the firmware update and settings change, but I don't remember what it was. When it failed I just jumped over to the RUiXU site and updated, and noted the recommended change for the lithium type.

 

[MarkJoseph]

How do I do this??? It just doesn't make sense. Ruixu 16 brand new BMS still isn't communicating with flexboss

 

[MarkJoseph]

So the firmware update shows as a zip file. I can't open/extract or really do anything with it. When I click it opens a dvd player. Let's just say not my strongest area of expertise.

 

[rogerheflin]

As of today we are on Lead Acid with our Lexpower 12x inverter. Ruiux and Lexpower customer service have been good in responding but so far we still have a communication problem between our Ruiux Battery pack and our Lexpower inverter. So, my question no is can we go forever with the Lead Acid program and can we install panels and have a good functional system? Is there anyone using this combination of inverter and battery pack that has either had no issues or solved the same problem. To answer a question or two above we balanced each individual battery by taking each battery individually to 0 then recharged to 100%. They have been in balance ever since. We have tried making various CAN cables but no luck. We took a CAT5 cable and also a CAT6 cable, cut the outer coating in the middle of the cable to expose the twisted pairs. Then we tried different splicing per all examples we found on the net and in instructions. Nada. So, here we are. Thanks again for your help and comments.

The only significant downside to running lead acid mode is that you have to set the battery limits by voltage and if you have a large load startup that can cause the voltage to drop below the limit and fail back to grid. Mine would do that when I start up a clothes dryer (about 5kw, close to 100A at battery voltage, 50A/battery about 0.20C of total load per battery). If I had shorter and/or bigger battery cables and/or more batteries that would significantly lower the voltage drop, but others have seen theirs drop back to grid on large loads. If you don't have large loads and/or have big battery cables and/or have lots of batteries then that may remove this problem.