Posts made by tine

• Best way to partition 23 cells across two 2Q series slaves?

  I have send the updat to Rick, so he will forward it to you, there is no attacment ikon here.  

  posted in REC 2Q Series BMS

  t

  tine
  11/4/24, 9:03 AM
• Best way to partition 23 cells across two 2Q series slaves?

  12 + 11 What is the Master BMS serial? I have to send you the dedicated firmware update.  

  posted in REC 2Q Series BMS

  t

  tine
  11/4/24, 3:32 AM
• Cell wire lengths

  The power line that continues from sub-pack to sub-pack from batt- to bat+

  posted in REC 2Q Series BMS

  t

  tine
  10/25/24, 4:32 AM
• Cell wire lengths

  Do not worry. We stop balancing for measurement. Keep the wires 90° to the power line so you minimize the EMI. Keep the loops as small as possible. @ Rick I just finnished writing the code for ...

  posted in REC 2Q Series BMS

  t

  tine
  10/25/24, 4:08 AM
• REC BMS for 24-series LTO cells for Sunny Island

  Well we can write the code for 2 Serial Slaves for SMA SI. We have it for Victron already. I strongly advise not to use Neey BMS in conjunction with REC. This is why: it introduces measuring err...

  posted in REC-BMS Programming and Configuration Questions

  t

  tine
  10/24/24, 5:01 AM
• Erratic reading from current shunt

  Resistors are 330 Ohms. Maybe there is a bad connection from the cable to the crimp or fronm the crimp to the pin.

  posted in REC Active BMS

  t

  tine
  5/20/24, 3:07 AM
• Warning: Internal Failure

  Rick and other users gave me thinking about how to change this sound buzzer alarm not to drive the users nuts. Let me describe you the solutions from my side and please send me some comments or sug...

  posted in REC Q Series BMS

  t

  tine
  5/14/24, 3:06 AM
• Erratic reading from current shunt

  R46, R47, L2, C52-C54 are the input filter for the current measurement. maybe you are getting something via burned PCB

  posted in REC Active BMS

  t

  tine
  5/6/24, 11:08 AM
• Erratic reading from current shunt

  It is not the matter of code or hardware, otherwise the > 2000 people will send me emails. It may be the thing of wiring and component placement. Like on this picture. See how the battery and th...

  posted in REC Active BMS

  t

  tine
  5/1/24, 3:47 AM
• Warning: Internal Failure

  The alarm is trigered the same way but only the ERROR LED bliks, error/warrning 7 or error/warrning 5. No sound alarm, no alarm sent over the CAN. I tried to send everything over the CAN bus to Vi...

  posted in REC Q Series BMS

  t

  tine
  5/1/24, 3:29 AM
• Warning: Internal Failure

  Also with the 2Q, the alarm for the LOW temp for charging and high BMS temp is silent. 2Q has an aditional algorithm to lower the amount of cells to the most critical, not to step over the BMS max ...

  posted in REC Q Series BMS

  t

  tine
  5/1/24, 3:22 AM
• Warning: Internal Failure

  The old CAN protocol for Victron had this eatures for Warrnings. I have mooved this from the code if a lot of ballancing is required the unit heas up. The balancing is reduced near the top end but ...

  posted in REC Q Series BMS

  t

  tine
  4/30/24, 4:53 AM
• Error in WiFi FW 1.62-12

  Yes, you are right. IT is a firmware bug. I have tested this in the morning. If you set it to °F then it gets data from the entry window and sends it directly to the BMS without converting it ...

  posted in REC Active BMS

  t

  tine
  3/13/24, 9:57 AM
• REC BMS for 24-series LTO cells for Sunny Island

  @Peter  Well The resistors inside the BMS are 4Ohms, this means when balancing @ 2.5V that is minimum threshold it would be 0.625 A when balancing, but actually a bit lower since the BMS perf...

  posted in REC-BMS Programming and Configuration Questions

  t

  tine
  1/15/24, 4:10 AM
• Quattro action on BMS shutdown

  If the Cerbo is also powered on the system side then it does not get the data from the BMS when disconnected. 

  posted in REC 2Q Series BMS

  t

  tine
  1/4/24, 3:31 AM
• REC ABMS with split bus firmware - how to specify different discharge and charge temps?

  Charge current is only set to 0 A when the temperature goes under the Under-temperature for charging. Contactors are ON unless you select them in the TASKS for the charge relay 1. 

  posted in REC Active BMS

  t

  tine
  1/3/24, 5:27 AM
• Time to go available on CAN?

  No can't do. It does not work like this. Victron CAN bus protocol was provided to us and all the CAN data is supported. To get the Time to go, they would have to add this feature or a programmer sh...

  posted in REC 2Q Series BMS

  t

  tine
  1/3/24, 4:57 AM
• Quattro action on BMS shutdown

  @Christopher  Is the Quattro connected to the BMS via a contactor. IS the contactor in positive or negative?  

  posted in REC 2Q Series BMS

  t

  tine
  1/3/24, 4:51 AM
• Erratic reading from current shunt

  Disconnect everything from the shunt consumption. The current should show about 0.0XX  or negative near zero. I do not see clearly if this is 500A/50mV shunt or 300A/50mV shunt. First check/se...

  posted in REC Active BMS

  t

  tine
  12/12/23, 5:12 AM
• Erratic reading from current shunt

  Does the ABMS show correct current (0 A) when all is disconnected? IS the shunt connected directly to cell 1- pin or via fuse or ON/OFF power switch? What avout the cable from the ABMS to the shunt...

  posted in REC Active BMS

  t

  tine
  6/9/23, 6:11 AM
• From what serial number did REC Active BMS get the CAN BUS module?

  You can open the ABMS and see if there is a ISO1050  (U5) mounted on the PCB. It should be, since we started to put them as a standard from 1-A-0470 onwards.  

  posted in REC Active BMS

  t

  tine
  6/9/23, 4:56 AM