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I will adjust it once I am able to do it. Seems I am not the only one having this issue...

Thanks for your advice @Pyrofx . I expect that this is a DIY system and once I saw all the components I already got anxious which one is going to fail first :-) On the other hand I am a rookie and my only source of knowledge is youtube and this forum. Since the company that installed my...

Guys perhaps I have figured it out. Long story short, REC send me a link to the PC software today. Since I had a RS 485 connector at home I figured I will at least set up the bms through there. Turned out it was not so simple, since I had to correctly wire the pins from BMS connector to the RS...

Just a summary of what has happened so far on this and mine thread regarding the REC/Victron. @Cafesitter is considering a Victron / REC purchase to couple with his Lifepo4 battery pack.

But did you check the wires with a multimeter? all of them ? Perhaps in your case, a cable is broken or other two wires are incorrect

I can take a picture but my connector can have different wire colors on different pins, but you can check both sides of the cable (the metal DB9 connector can be easily disassembled, as well as the white plastic one) In the REC BMS module manual you have the pins for BMS plug (the numbers on...

... and you also need to power the wifi module with some DC 10V+ power supply, not to forget...

:oops::oops::oops: But are the alarms going to clear by themselves both on BMS and GX?

Exactly. REC BMS talks to Victron through can bus. It speaks victron protocol out of the box. http://www.rec-bms.com/datasheet/UserManual_REC_Victron_BMS.pdf Looks pretty cool... at least on paper and from what I read here and on Victron forum :-D Hope I will bring it to work some day and my...

Thanks for the heads up @erarnund . I am going to write to REC guys and ask them for the updated version. My system is working quite steady. Actually I have not touched it for several months now. (Knock on wood)

When the battery pack charges towards 100% BMS reports high voltage alarm. Probably the min - max Cell V is over threshold. Both BMS and GX report error. And I am not certain if this clears by itself. You can clear the alarms on Victron VRM and GX, but I am not sure if the REC can recover from...

That is my understanding. I am quoting REC manual: Battery Pack’s Charging Algorithm: The communication between the REC BMS and the Victron CCGX is established through the CAN bus. All the parameters that control the charging/discharging behavior are calculated by the BMS and transmitted to the...

I left the system on today. We have intermittent weather here in Slovakia. At first BMS reported warning that some cells are out of balance, it was strugling to balance it. Then the whole system went over 60V, red lights on victron and I believe GX lost connection to BMS and started beeping. I...

Hi. is this the message you are getting from wifi module? Or PC software?

Thank you for your reply @snoobler . Actually I was mistaken, looked into the wrong sheets. The chemistry is LifePo, however the default BMS settings are for 200Ah. Mine are 280Ah cels. Do you think I can leave them on?

Hello @Pyrofx . Before my resistance was something like this, that's why I am so worried: I am talking to REC but so far I was not able to make the wifi module work with the BMS. The FW update of both Wifi and BMS has not been successful. Unfortunately I do not have the PC Master SW, in...

Exactly :-) However I am right now strugling with my REC. I again received Error 15 when charged to 100% and even when I switched the BMS on and off one cell went to 3.68V for a while. Had to do several restarts for the alarm not to turn on again. I turned my water boiler on so I have some...

I've got a Venus GX. It also reports high voltage (and low voltage once BMS disconnects), but those alarms clear themselves. The problem is the BMS. Once it throws Error 15 it disconnects the charging and I am not always around to restart it. Hopefully it gets better with more cycles... if not I...

Let me know if it works guys. Mine system is already connected to my victron and Check the REC BMS Victron manual and the PIN-outs for RS-485 DB Connector. If you have a multimeter, you can check if all are set up right according to the scheme and working. See REC BMS Victron manual...

I've got the same issue. I am trying to solve it with REC for 3rd week now. The firmware update they suggested is not working. Have you tried talking to them? I have already emailed their CEO and asked for PC software so I can at least review and adjust the settings. Still waiting for an answer.

I didn't. The BMS is on default and since the wifi module is not detecting the BMS I cannot review the settings. That's why I decided to turn off the system completely. BMS is just connected to battery bank at least to balance them (at least I hope this helps to balance a new battery array). As...

I have run it for 2 days and noticed that it is not discharging more than 10-11A. I'm going to keep it on and see where it leads. I trust that with the support of REC i will solve the settings issue.

@Pyrofx So today I took the time, bought some goodies at our version of Radio shack, cleaned the battery contacts with isopropylalcohol and scotch brite, same treatment applied to busbars. I have also exchanged the bms connector and put O-shaped instead of U-shaped. Currently my REC looks like...

Hi. Any progress on your REC system?

I have also tried 0-10 send address, tried to upgrade firmware that REC sent on both wifi module and BMS, changed the baud rate. Even took it out, formatted the SD card and copied the FW bin files there manually. Result is still the same.

Good point, you are right. 15 number of beeps is the transistor failure. I have set up the Venus GX according to REC Manual (250kB/s). Venus is detecting the REC and reporting correct values. my BMS is plugged into VE.CAN 1 (the top port when you are looking on the Venus GX front side)...

I am watching it closely, it did it again. One cell went over 3.65 and it started to throw alerts. This is how the GUI looked like shortly before This is the error from the REC LCD. Seems that once BMS goes into that alert, it does not recover. Manual restart is needed.

Are we talking about the same REC device? I believe there are several. Mine is this one: http://www.rec-bms.com/datasheet/UserManual_REC_Victron_BMS.pdf

Awesome. I am glad you have it up and running. What settings options are you missing?