Below is an log from when turning on ignition gives error #43. Seems like an internal HW error to me.       Sep-24-2023,08:56:38,0, ,AST;,0.02, ,13.07,6.9,6.9,90, ,14.30,490,150...

Hello. My WS500 has started giving Error 43, Alternator Low voltage. But the alternator voltage is just fine. AST;,0.00, ,13.06,-32.6,-32.6,-425, ,14.30,490,15000,10, ,25,33, ,0, ,13.06,26,-99,2...

I do not see the page snip.

You have the correct understanding. If you like 5% hysteresis, (restart at 95% SOC) you program 0.05. The standard, out off the box setting is 5%. You are right, if I share settings, it is bette...

Just checked the WS500 dip switches and you are correct, the small alternator mode dip switch was "On". At this point here are my switches: 1 - Off (House Battery) 2 - Off (House Battery) 3 - O...

Worked with the manual communication tool of the WiFi portal. Here's what it reported when I did the SOCH? query: "5.00000e-2" I'm a business guy, not a scientist so I assume this translates ...

@Ben@JamieAs I almost can not believe that the problem is in the WS00, can you clarify some off your wiring.   Where is the big alternator negative cable connected, the negative cable that g...

@Jamie  If you see 75 field drive, the alternator should produce amp.  Why your alternator don't produce amps is strange.   I don't see the logic why it starts produce amps after...

and here are a few pics of what a Master/Slave system displays on a Victron Cerbo

for a 560Ah system, as long as you have well behaved cells, you can likely use a single 2Q BMS by connecting them in a 2P8S configuration. If you want a redundant system you will need 2 of the 2Q ...

Hello, I am looking to setup a LFP power system for a boat with 16 EVE LF280K cells configured in 8S2P for a total of 560Ah @24V and looking to use REC 2Q BMS for each 8 cell string. Can I j...

Yep, this is correct. After the lamp test, (disconnect blue, light lamp with blue and reconnect) the alternator worked well. I'm not sure why the 75% max. Here are my alternator settings via the a...

@Jamie some settings are not on the main settings page in the WIFI. They are not often changed.   This settings you can do with, manual programming, under settings tab.

@Jamie   Some extra info about your latest logfiles.In the logfile you AST. The values after AST are explained in the WS500 documentation. Values that I see, and important for you at the m...

Thanks agian for the help Ben. I updated the settings per your instructions and they seemed to work better see WS500 thread for logs. Though, I should note I didn't see an SOCH End of Charge Histo...

Thanks Ben. I'm just wrapping up at the boat and heading out. I'm hopeful I might have resolved things with your help. Here's the breakdown of efforts. WS500 WS500 Log 1Updated BMS settings to r...

@Jamie  All settings are described in the manual.Although I didn't check the latest manual.I agree that understanding the product, needs some time to study the parameters you can make.The flo...

Thanks Ben.Here's what I had for the 'original' recommended settings, which should be by current settings... I believe I posted them with a question earlier:Here's the new settings you posted earli...

I checked above and dont see the suggested setting. Maybe the post is deleted by mistake. try these settings. BVOL? balance END V   3.52BMIN? balance START V    3.45RAZL? MAX allow...

Hello Jamie,. I check your VRM. CVL is limiting the output from the WS500 at 13.4V.  I have posted suggested settings for you. After posting I recognised that there was an error in mine calc...

Thanks Ben. I'll be back at the boat tonight, and will run a few tests and create a log file.  I really wish the WS500 came with an external USB or Bluetooth connection so I didn't have to dis...

@Jamie  Low output, you made setting that field goes to max 75%. Probably you have select small alternator mode. This reduce the Max amps. If you see field 100%, alternator produce the Max ...

First overnight trip on the boat since all the troubleshooting, and it was super frustrating. When I left troubleshooting the WS500 as communicating with the alternator and the batteries were charg...

and here is a link to a sample single relay Active BMS wiring diagram that might of interest https://rec-bms-na.com/download/31/rec-active-bms-sketches/1290/rec-active-bms-wiring-diagram-rec-activ...

Now that we have the WiFi module there are new features available that allow you to custom configure the second relay and two opto outputs so this is how it goes: 1)  PC software only and two...

Wow.  Now I'm even more confused! A)  There appear to be two completely different firmwares -- with Victron/Wakespeed, and without.  I thought the differences were simply setpoints,...

Rick,   Thanks so much.  I was hoping you'd answer. 1)  If the single relay is standard now, are there any diagrams?  The manual still shows two, and talks about HVC and LVC ...

1)  Yes, a single relay is the standard way to go now "since many loads are now smart and the Active BMS comes configured for that operation, leaving 1 relay and 2 optos for additional custome...

I am preparing to install a LFP battery on a sailboat and am trying to pin down a BMS.  REC seems to be the best.  I have multiple charging sources that are fairly "dumb" with no CAN cont...

Thanks again Ben. It does look like my Multiplus is out of date on firmware. I'm presently running edition 490, and it looks like that is a couple of years old. However, I have to wait until I...

Hello Jamie, New settings is better for batteries I think, not many manufacturers ask for a continuous float voltage from 13.9V. But your Multi is over shooting the "goal" voltage CVL, that the R...

Thanks for diving deep into this. Those events are around a short evening sail I took with friends. Looks like they coindcided with starting engine, sailing, starting again, etc.Hopefully this is l...

@Ben Another strange event. System is in float 13.9( your old settings) See CVL.     CVL stays constant 13.9. Then Multi start giving fluctuating voltages.   All related to ...

@Jamie on the mainscreen GX, you need to see external control at the multi icon.   Checking your VRM, there is charge current, when the cell voltage get higher. (On your posted VRM widget, t...

Yep... I was confused.To share my confusion in a way which may help others... when I originally removed the SD card for reformatting, I only found Log files on it. There were no other configuration...

Just because we're diving deep here I though I'd share the Multiplus settings to see if you have any concerns or suggestions:     I would imagine the BMS would override these set...

@Ben Thanks for the advice here.  Voltage Spike: I don't have an explanation for the voltage spike you mentioned. The only charging devices on the boat are the Multiplus and the alternator, a...

@Jamie limit amps suggest to make 200amps.   Looking in more detail to your VRM post from above, I see something strange. At 5septeber around 23:00h, I see voltage rising, but no charging a...

Thank you. I updated the two settings from the remote panel and will update BMS when I get back to the boat.  

Good that it is solved.  Maybe in my earlier post ""copy"" the files was not clear enough.