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KempM

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About KempM

  • Birthday 21/04/1971

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  1. Correct. As an alternative, you can cycle through high resolution parameters quickly with node-red and then only update other parameters when needed on a slower cycle. You can also do block reads of the parameter data to limit cycle times. With a bit of optimizing I'm currently running at 5s update intervals for priority parameters and 30s for others.
  2. Perfect! Glad it is sorted.
  3. Hi Armand, that cable will not work. You will need something along the lines of this https://www.takealot.com/mecer-usb-to-1-serial-9-pin-port/PLID35668474 together with the cable assembled as per the cabletower.pdf doc. The serial port on the battery is a RJ11 connector, so the RJ45 won't fit.
  4. I'm using the Canbus cable. Canbus port on Inverter and battery. Also make sure to set the battery address to 1.
  5. Correct. No issues. You can use the W630 also. It has 2 ethernet ports compared to the W610 with one ethernet port. Basically the same device.
  6. I'm currently using this option, but logging the data with node-red and Modbus module. Basically using Bloubul7's node-red config, but the USR-W610.
  7. Hi Daniel I think you also need to get Freedom Won to do the battery firmware updates. It seems that because the batteries are still brand new on the market, there might be some firmware updates needed to get them solid. After the firmware update on my battery, the performance has been rock solid. Hopefully the issue you have is firmware related.
  8. Yeah, most support teams have the same mentality. I suppose they want to make sure you REALLY need the support! It took a couple of weeks for me to get feedback on my issue initially. Good luck!
  9. Attached is the Serial cable configuration you require for the firmware update. E-tower BMS cable config.pdf cableetower.pdf
  10. Hi ChadVV I had a USB to serial cable (RJ11-4) made. That is plugged into the battery, and they used Anydesk through my laptop to connect to the battery and do the firmware upgrade.
  11. I have not had this problem, no. My battery has been solid after the firmware upgrade. Does your inverter show the error on the BMS screen when the alarm light is on? I see the troubleshooting table says that the DC bus must be pre-charged as you stated. Maybe give that a test to see.
  12. Hi Gnome, I've previously tried to use ESP Link on another IoT project, but found it to be a little buggy and not very stable. If you look at their Github repository, the last update was like 2 years ago, which in terms of IoT stuff means it was abandoned. Personally, I would recommend ESPHome The interface is really easy to implement, and you can configure the elements you require quite easily. The following components could be very helpful for your solution: https://esphome.io/components/uart.html https://esphome.io/components/mqtt.html https://esphome.io/components/wifi.html https://esphome.io/components/web_server.html Example https://esphome.io/custom/uart.html Assuming I understand your needs?!
  13. Hi Koet, Yes, we did try that! As far as I understand from the support guys, the voltage settings is only effective if you are not using the CAN bus BMS comms to manage the battery charging/discharging. The only solution was for Freedom Won support to do the firmware upgrade.
  14. Just some feedback on my battery losing SOC%. Freedom Won support did a firmware upgrade on the battery today and the SOC is now back at 100%. The weird thing was that the physical voltage was at 55.8V and showing 80% SOC on the LiBMS page of the Sunsynk inverter, also the same 80% indication on the SOC LEDs on the front of the battery.
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