We have many users with 4P4S EVE packs running the REC Active BMS without any need to add balancers. Unless you are mating cells with different capacities the Active BMS will balance your pac...
Posts made by Rick
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REC ABMS - integration with heltec 4s Active Balancerposted in REC Active BMS
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WS500 Field Stuck Highposted in WS500 Tips, Tricks and support
Hans, I have heard of this happening on older W500s and I believe they hardened some of the circuitry on the newer versions. We dont like to see this happen so if you'd like to upgrade to the new...
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Two (related) issues after updating to 2.9.6 firmwareposted in REC Active BMS
Hey Hans, glad you're making progress. In the latest f/w version there is no longer a separate 2 relay version. Using the "Tasks" page in the Wifi module you can set it to drop out on l...
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Zeus as REC Active follower on 500k bms can but no cerbo widget.posted in Installation and Configuration
@Matt Nice!! Thanks for letting us know
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Unable to install WiFi Module SW 1.6.3posted in REC-BMS Programming and Configuration Questions
As Trond mentioned, there are 2 files in the dowload zip file, and both must be uploaded. If that isnt the issue, then you can try the workaround and manually add them the SC card on the Wifi modu...
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TimeToGo additional message for Victron D-BUSposted in REC Active BMS
@Tine Andrejasic Tine, are you able to include this variable in the next firmware update? Rick
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REC WiFi module locked up, how to fixposted in REC BMS Tips and Tricks
There have been some cases of the Wifi module becoming unresponsive. This is usually caused by: SD card full SD card corrupted Wifi module reset during upgrade NOTE: The...
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Float settings with LFP batteries and REC BMSposted in REC BMS Tips and Tricks
In recent years it has been confirmed that you generally do not want to use a float charge when charging Lithium Iron Phosphate (LiFePO4) batteries. Unlike lead-acid batteries, which benefit from a...
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How to use the new Mate N Lok connectorsposted in REC BMS Tips and Tricks
The new series of REC BMS products now incorporate the easy to use Mate N Lok connectors. To insert or remove a pin simply follow these 2 steps bend back the two retaincer clips on the side of ...
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External control cuts in and outposted in WS500 User Installation and Programming Questions
sorry, I havent seen this one
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WS500 V1.0 Field output driver failedposted in WS500 User Installation and Programming Questions
I have seen that a few times. I recall Bill talking about beefing up the circuit in the next version. If there is not any PCB damage and you have a surface mount soldering kit you may b...
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how to set abms to have less than a 100 percent socposted in REC Active BMS
Currently there is not a single command way to do this but you would just need to adjust your CHAR parameter down to about 3.5V. That being said, we do not recommend it for long term use as it wil...
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How to test REC 2Q BMS internal fusesposted in REC 2Q Series BMS
The 2Q includes 2 internal fuses, one for power and the second for the Opto relay output. Remove all 8 M10 screws from the front and back covers open case and remove the flush mount screw using...
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Zeus as REC Active follower on 500k bms can but no cerbo widget.posted in Installation and Configuration
Thanks for the update. We are hoping to be able to provide some testing feedback ourselves in the next week.
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SW updates for a 9M managing 2 x Q-BMS house batt system on my sailboat?posted in REC Q Series BMS
Hey Bill, If your serial# on your Q BMS is 4000+ it has the additional memory and can be upgraded to 2.9x. We just need the serial# For your Master/Slave, it too can be upgraded but we will...
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Troubleshooting Unstable ABMS-WiFi Connectivity on Boatposted in REC BMS Tips and Tricks
@Stefano Email with 1.6.2 F/W sent. Also check for any nearby AC power lines. Induced AC noise can be a contributing factor Is your wifi module in a natural faraday cage?...
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REC Active BMS problemsposted in REC Active BMS
In a marine environment anything is possible with the humid salt laden air. I would remove and inspect the harness and connector pins
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REC Active BMS problemsposted in REC Active BMS
Thats great news Michael, pins are crimped on the harness I have here in the office.
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REC Active BMS problemsposted in REC Active BMS
I think I have a reasonable explanation for your error. When the Active BMS first powers up it does some tests and one is to drive the active balancer which puts a large load on you cell tap ...
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REC Active BMS problemsposted in REC Active BMS
Hey Mike, Thanks, I appreciate that. I havent heard from Tine on this one but I'll reach out to see if I can get to the bottom of it.
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Master - Slave comunnicationposted in REC Master Slave Large Scale Systems
Have you ried connecting directly to the slave with the Wifi Module?
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REC Active BMS problemsposted in REC Active BMS
ok Mike, with this additional information it changes the equation. An error 10 is usually a serious error on a failed system. When you get back please verify the error code and all cell...
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REC Active BMS problemsposted in REC Active BMS
Hey Michael, An error 10 is not good. It usually indicates a short circuit or blown fuses in the BMS. This can be caused by removing a cell tap wire while the harness is connected or a...
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Identification of temperature Sensors DS18B20posted in REC BMS Tips and Tricks
Hey Stephano, The way 1Wire networks work is they use the network ID number as the reference so once you thermo cycle them you can sort them by cell #, as the ID number is not usually written on t...
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abms terminology and interactionsposted in REC Active BMS
Several years ago I started on someting for the older BMS and asked for some feedback on it but didnt get anything so its still a draft document and a bit outdated but it might help you a bit, but ...
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Zeus as REC Active follower on 500k bms can but no cerbo widget.posted in Installation and Configuration
@Matt unfortunately no, I have not had any luck this time either
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Zeus as REC Active follower on 500k bms can but no cerbo widget.posted in Installation and Configuration
Good point. Thanks for sharing all of your testing and insight. I have Nick's contact info buried somewhere so I am going to ask him to reply to this post.
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Zeus as REC Active follower on 500k bms can but no cerbo widget.posted in Installation and Configuration
This dual baud rate issue explains a lot. I havent had any luck with my contacts at ARCO, but that was a while back. It might be nice if we could get some insight from them. I am ...
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rec abms can access, but says memory card is not working so there is no logginposted in REC Active BMS
It is likely one of two things 1) SD card is full 2) SD card is corrupted. If you remove the 4 screws on the back of the module you will see the SD card. Push down on the clip ...
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Zeus as REC Active follower on 500k bms can but no cerbo widget.posted in Installation and Configuration
Thanks Trond, once we get our inhouse test engine working and brckets and pulleys made, I will hopefully be able to share some insight
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Zeus as REC Active follower on 500k bms can but no cerbo widget.posted in Installation and Configuration
I think you may not have your Cerbo VE.CAN port set correctly. It needs to be 250k. Check out this thread for help. We sent Arco an Active BMS to test last year so they should hav...
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New REC BMS and Victron Cerbo DVCC integration Guideposted in REC BMS Tips and Tricks
Thanks Trond, this is the 2Q Manual and the CHRG instruction does not apply. Also the Active BMS uses the instruction CANS instead of CANF. This will be updated in f/w update 2.9.5 to s...
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Zeus vs REC Active BMS synchronizationposted in Installation and Configuration
Hey Trond, I am still a few weeks away from being able to test but will report back when I can. Remember not to use the black WS500 terminator anywhere as its on the wrong pins. If you ...
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REC Master9M with new REC2Q Slave Units - Cable from Master to 1st Slave: which cable colour goes whereposted in REC BMS North America User Forum
@PeterD Thanks for your input on this Peter. Some great troubleshooting tips :) We are in the process of setting up a full Master/Slave test system in our new shop. As part...
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REC Master9M with new REC2Q Slave Units - Cable from Master to 1st Slave: which cable colour goes whereposted in REC BMS North America User Forum
Just updated DB9 pin numbers and added a Slave to slave pinout section to the Master Slave Pinouts diagram. Thanks to PeterD for catching it. You can download it here: https://rec-bms-...
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no Tacho even with forced tachomodeposted in WS500 User Installation and Programming Questions
and a bit more info from page 68 of the WS500 full manual, release 2.6 Tach Min Field: <WHOLE NUMBER ( 0 à 30 )> This is the % value the PWM will be kept at &n...
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no Tacho even with forced tachomodeposted in WS500 User Installation and Programming Questions
I havent had a chance to play with the recent f/w updates but its likely the issue is that you will need to set a minimum output on the alt. to provide enough of a sine wave for your alt to see.&nb...
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ABMS/2Q firmware with additional CAN messagesposted in REC Active BMS
@o-firstname This looks great! There are many hundreds of marine REC users but we don't have an easy way of adding them to this post. Let me see what I can do. I have a spare...
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Zeus vs REC Active BMS synchronizationposted in Installation and Configuration
Hey Ryan, We are setting an inhouse demo using a big marine generator as the test system and are just working on wiring and setup now. This will allow us to try a couple of head to head test...
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How to connect a REC 2Q to your Victron VE.CAN portposted in REC BMS to Victron VE Bus
We have also created a REC 2Q/Cerbo Interface manual. The Active BMS has an update 2.9.5 coming that will standardize commands between the Active BMS and 2Q and in a few weeks and we will upd...
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