battery_compatibility:byd_b-box
Differences
This shows you the differences between two versions of the page.
Both sides previous revisionPrevious revisionNext revision | Previous revisionNext revisionBoth sides next revision | ||
battery_compatibility:byd_b-box [2019-02-12 21:33] – guystewart | battery_compatibility:byd_b-box [2020-03-18 13:35] – guy_stewart | ||
---|---|---|---|
Line 3: | Line 3: | ||
The combination of Victron products with BYD Battery-Box LV lithium batteries has been tested and certified by the Victron and BYD R&D departments. This combination has extensive field experience and is actively supported by both companies. | The combination of Victron products with BYD Battery-Box LV lithium batteries has been tested and certified by the Victron and BYD R&D departments. This combination has extensive field experience and is actively supported by both companies. | ||
- | The BYD B-Box includes an integrated Battery Management System (BMS) with each battery cell module, and a Battery Management Unit (BMU) that interfaces with the Victron [[venus-os: | + | The BYD B-Box includes an integrated Battery Management System (BMS) with each battery cell module, and a Battery Management Unit (BMU) that interfaces with the Victron [[venus-os: |
- | ^ Battery ^ Pro 2.5-10.0 ^ Pro 12.8 & 13.8 ^ L 3.5-14.0 ^ | + | ^ Battery ^ Pro 2.5-10.0 ^ Pro 12.8 & 13.8 ^ L 3.5-14.0 |
- | | Appearance | {{ : | + | | Appearance | {{ : |
- | | ESS | yes| yes| yes| | + | | ESS | yes| yes| yes| yes| |
- | | Grid Backup| | + | | Grid Backup| |
- | | Off-Grid| | + | | Off-Grid| |
- | | Module capacity| | + | | Module capacity| |
- | | Module limit | 32| 32| 12| | + | | Module limit | 32| 32| 12| 64| |
- | | Max capacity| | + | | Max capacity| |
Line 29: | Line 29: | ||
- | === 1.2 A Venus-device is required, | + | === 1.2 A GX device is required, |
- | It is essential to use the CAN-bus connection of the CCGX or VGX with the BYD batteries for the keep-alive signal, communication of charge and discharge limits, error codes and state of charge. | + | It is essential to use the BMS-Can (or CAN-bus) connection of a [[venus-os: |
- | When used with B-Box batteries, the minimum | + | When used with B-Box Pro series |
=== 1.3 All 48V Multis, MultiPlusses, | === 1.3 All 48V Multis, MultiPlusses, | ||
- | The minimum firmware version is 422. Though updating | + | The minimum |
- | These inverter/ | + | These inverter/ |
- | In grid connected systems, advanced control functions are configurable in the ESS settings on the [[venus-os: | + | In grid connected systems, advanced control functions are configurable in the ESS settings on the [[venus-os: |
- | In off-grid systems, the control functions of the BYD Battery Management System (BMS) are built into the latest version of the [[venus-os: | + | In off-grid systems, the control functions of the BYD Battery Management System (BMS) are built into the latest version of the [[venus-os: |
- | === 1.4 All 48V BlueSolar and SmartSolar MPPT Chargers are compatible === | + | === 1.4 All 48V BlueSolar and SmartSolar |
For proper operation, the B-Box battery needs to be able to control the charge current of the solar MPPTs. | For proper operation, the B-Box battery needs to be able to control the charge current of the solar MPPTs. | ||
Line 55: | Line 55: | ||
__MPPTs with a VE.Direct port__ | __MPPTs with a VE.Direct port__ | ||
- | MPPTs are controlled via the [[venus-os: | + | MPPTs are controlled via the [[venus-os: |
- | The MPPT requires connection to the [[venus-os: | + | The MPPT requires connection to the [[venus-os: |
- | To test operation, try disconnecting the [[venus-os: | + | To test operation, try disconnecting the [[venus-os: |
- | __MPPTs with a VE.Can port__ | + | __MPPTs with a VE.Can |
- | Firmware should be at least version | + | Firmware should be at least version |
- | + | ||
- | When using VE.Can MPPT' | + | |
+ | When using VE.Can MPPT' | ||
+ | Please note that older model VE.Can MPPTs (without VE.direct and with built in screen) are no longer supported with BYD managed batteries for new installations. Legacy systems that were historically installed with this configuration using the allow to charge contacts are not required to make any changes. | ||
=== 1.5 Battery compatibility === | === 1.5 Battery compatibility === | ||
Line 78: | Line 78: | ||
| B-BOX Compact | | B-BOX Compact | ||
| B-BOX L 3.5-14.0 | | B-BOX L 3.5-14.0 | ||
+ | | B-BOX Premium LVL 15.4 | | ||
- | BYD also releases firmware update for their BMU and BMS. BMU Firmware versions earlier than V4-13 are not compatible with Victron equipment and can cause the battery to not be detected. | + | BYD also releases firmware update for their BMU and BMS. |
- | + | ||
- | Minimum BYD firmware version: BMU_V2_V4-13_15-Mar-2017. | + | |
- | On-screen, or via Remote Console on the [[venus-os: | + | B-Box Pro BMU Firmware versions earlier than V4-13 are not compatible with Victron equipment and can cause the battery to not be detected. |
- | Batteries with older firmware versions can be updated. Please contact BYD for more information. | + | Minimum BYD firmware version for B-Box Pro: BMU_V2_V4-13_15-Mar-2017. On-screen, or via Remote Console on the [[venus-os: |
+ | BYD Premium LVL batteries firmware should be no less than V1.4, and the BMS firmware should be no less than V1.3. If necessary, this can be updated automatically via the ethernet port on the BMU when connected to the internet. | ||
===== 2. Minimum Battery Sizing ===== | ===== 2. Minimum Battery Sizing ===== | ||
Line 92: | Line 92: | ||
The following information is provided by BYD, it is reproduced here for your convenience and should always be confirmed with the latest BYD manuals and specifications. | The following information is provided by BYD, it is reproduced here for your convenience and should always be confirmed with the latest BYD manuals and specifications. | ||
- | Each battery | + | Each B-Box Pro 2.5 battery |
- | The following charge rates are managed automatically by the BYD BMU and [[venus-os: | + | The following charge rates are managed automatically by the BYD BMU and [[venus-os: |
Using very large solar arrays with battery banks that are too small can exceed the limits of the batteries ability to charge and possibly lead to the BMU triggering over-current alarms. | Using very large solar arrays with battery banks that are too small can exceed the limits of the batteries ability to charge and possibly lead to the BMU triggering over-current alarms. | ||
Line 147: | Line 147: | ||
+ | === Battery Modules Required - Premium LVL 15.4 === | ||
+ | |Phases| | ||
+ | | Inverter/ | ||
+ | | Multiplus 48/ | ||
+ | | Multiplus 48/ | ||
+ | | Quattro 48/ | ||
+ | | Quattro 48/ | ||
+ | | Quattro 48/ | ||
+ | | Quattro 48/ | ||
+ | | EasySolar 48/ | ||
+ | | EasySolar 48/ | ||
+ | |||
+ | **" | ||
- | The specification for these minimum battery sizes was obtained from [[http:// | + | The specification for these minimum battery sizes was obtained from [[http:// |
Line 156: | Line 169: | ||
===== 3. CANBus Wiring ===== | ===== 3. CANBus Wiring ===== | ||
- | Use the //VE.Can to CAN-bus BMS type A Cable//, part number ASS030710018. Plug the side which is labeled Battery BMS into the BYD BMS. Plug the side labeled Victron VE.Can into the [[venus-os: | + | Use the //VE.Can to CAN-bus BMS type A Cable//, part number ASS030710018. Plug the side which is labeled Battery BMS into the BYD BMS. Plug the side labeled Victron VE.Can into the [[venus-os: |
- | Then, plug a [[https:// | + | Then, plug a [[https:// |
More information about the cable can be found in [[battery_compatibility: | More information about the cable can be found in [[battery_compatibility: | ||
- | Without properly connecting this cable, the battery will not show up on the display of the [[venus-os: | + | Without properly connecting this cable, the battery will not show up on the display of the [[venus-os: |
- | It is important to ensure this connection and display of the battery on the [[venus-os: | + | It is important to ensure this connection and display of the battery on the [[venus-os: |
- | === 3.1 Wiring of the Allow-to-charge and allow-to-discharge contacts === | + | === 3.1 Legacy Systems using Allow-to-charge and allow-to-discharge contacts === |
- | Using the latest firmware on all devices, the BYD allow to charge contacts are only required when using VE.Can | + | This section is for Legacy systems that have VE.Can |
- | If you have an existing system that is configured using the Allow-to-charge contacts, and it is operating correctly, you do not need to make any changes. | + | |
- | The MPPTs with a VE.Can port have a dedicated Remote On/Off input. It needs to be connected to battery positive to enable the charger. Leaving the Remote On/Off input floating or pulling it to ground will disable the charger. | + | If you have an existing system that is configured using the Allow-to-charge contacts, and it is operating correctly, you do not need to make any changes. |
+ | |||
+ | The BlueSolar | ||
B-Box relays: | B-Box relays: | ||
Line 195: | Line 209: | ||
=== 4.2 Charge parameters === | === 4.2 Charge parameters === | ||
- | In normal operation, the charge parameters are controlled by the BYD BMU and communicated through the system by the [[venus-os: | + | In normal operation, the charge parameters are controlled by the BYD BMU and communicated through the system by the [[venus-os: |
=== Charger tab === | === Charger tab === | ||
Line 237: | Line 251: | ||
- | ===== 5. Venus-device Configuration ===== | + | ===== 5. GX device Configuration ===== |
- | On the [[venus-os: | + | On the [[venus-os: |
^Venus Settings -> System Setup Parameter ^ Value ^ | ^Venus Settings -> System Setup Parameter ^ Value ^ | ||
Line 255: | Line 269: | ||
{{ : | {{ : | ||
- | This parameters page is also a good place to check that all batteries are connected and working properly. In normal working conditions, for the 2.5 model, the current limit is 35A per cell. For example, 140A charge current limit ( 140 / 35 = 4 ) means there are 4 BYD battery cells connected. | + | This parameters page is also a good place to check that all batteries are connected and working properly. In normal working conditions, for the 2.5 model, the charge |
+ | |||
+ | Note these limits have been adjusted higher by BYD during firmware updates, so the charge and discharge current limit figure may appear slightly higher. | ||
=== Color Control GX Configuration === | === Color Control GX Configuration === | ||
Line 261: | Line 277: | ||
The CCGX only has one available VE.Can port. It is not possible to connect both CAN products such as VE.Can MPPT (250 kbit/s) and an B-Box battery CAN-bus (500 kbit/s) together on the CCGX. As the BYD Battery MUST be connected, you will need to use the port for that. This will mean no data is collected from the VE.Can MPPT, nor can the CCGX control it. This means you are required to use the "Allow to Charge" | The CCGX only has one available VE.Can port. It is not possible to connect both CAN products such as VE.Can MPPT (250 kbit/s) and an B-Box battery CAN-bus (500 kbit/s) together on the CCGX. As the BYD Battery MUST be connected, you will need to use the port for that. This will mean no data is collected from the VE.Can MPPT, nor can the CCGX control it. This means you are required to use the "Allow to Charge" | ||
- | === Venus GX Configuration | + | === GX Device with multiple CAN-bus port configuration |
+ | |||
+ | With GX devices that have two CAN-bus interfaces available (eg Cerbo GX and Venus GX), the VE.Can MPPT will remain connected to the VE.Can port, while the BYD CAN-bus cable should use the specific CAN-bus connections (H, L, GND), or BMS-Can ports. | ||
- | The VGX has two CAN-bus interfaces available. The VE.Can MPPT will remain connected to the VE.Can port, while the BYD CAN-bus cable should use the specific CAN-bus connections (H, L, GND). | + | This allows data from the MPPT and BYD battery simultaneously. |
- | This allows data from the MPPT and BYD battery simultaneously. You will only need to connect the Allow-to-charge wires if using the VE.Can MPPT and VGX. | + | |
The CAN-bus connections are galvanically isolated at the BYD BMU. There is no issues using the non-isolated connection of the VGX. | The CAN-bus connections are galvanically isolated at the BYD BMU. There is no issues using the non-isolated connection of the VGX. | ||
Line 270: | Line 287: | ||
===== 6. VE-Direct MPPT Settings ===== | ===== 6. VE-Direct MPPT Settings ===== | ||
- | In normal operation the MPPT charge characteristics are governed by the [[venus-os: | + | In normal operation the MPPT charge characteristics are governed by the [[venus-os: |
This section presumes familiarity with [[victronconnect: | This section presumes familiarity with [[victronconnect: | ||
Line 288: | Line 305: | ||
If the system is not operating correctly, go through these steps. | If the system is not operating correctly, go through these steps. | ||
- | === Step 0. If the Inverter/ | + | === Step 0. If the Inverter/ |
- | As a safety precaution, the inverter/ | + | As a safety precaution, the inverter/ |
- | You can then start the inverter/ | + | You can then start the inverter/ |
- | === Step 1. Check that the BYD battery is visible on the Venus-device list === | + | === Step 1. Check that the BYD battery is visible on the GX device list === |
{{: | {{: | ||
Line 300: | Line 317: | ||
If its not visible, check: | If its not visible, check: | ||
- | * [[venus-os: | + | * [[venus-os: |
* BYD firmware version (see requirement above) | * BYD firmware version (see requirement above) | ||
* CAN-bus communication cabling between BYD and Victron system. Make sure that it is in the right way around. If the special cable is plugged in reversed it won't work. | * CAN-bus communication cabling between BYD and Victron system. Make sure that it is in the right way around. If the special cable is plugged in reversed it won't work. | ||
Line 307: | Line 324: | ||
=== Step 2. Check that the BYD battery is ready for use === | === Step 2. Check that the BYD battery is ready for use === | ||
- | Check the Max Charge Voltage parameter. This voltage parameter is sent, together with the other three parameters, | + | Check the Max Charge Voltage parameter. This voltage parameter is sent, together with the other three parameters, |
When ready for use, the Max Charge Voltage will read 56.5 V. In case there is an error in the BYD system (wiring, addressing, or other), it will be 42 V: | When ready for use, the Max Charge Voltage will read 56.5 V. In case there is an error in the BYD system (wiring, addressing, or other), it will be 42 V: | ||
Line 313: | Line 330: | ||
{{: | {{: | ||
- | Also check that your are seeing the expected | + | Also check that your are seeing the expected |
Locally on-site, you can check the Run LED on the BYD BMU, it needs to be lit up continuously: | Locally on-site, you can check the Run LED on the BYD BMU, it needs to be lit up continuously: | ||
Line 345: | Line 362: | ||
* Could be a temporary issue, that corrects self automatically after a short while (matter of minutes). | * Could be a temporary issue, that corrects self automatically after a short while (matter of minutes). | ||
* Could be an external issue, unacceptable voltage or current. | * Could be an external issue, unacceptable voltage or current. | ||
- | ===== 9. Step by Step Guide ===== | + | ===== 9. Step by Step Installation |
- | If you need further details, | + | There is a step by step installation |
+ | |||
+ | |||
+ | [[https:// | ||
+ | |||
+ | This written manual should be assumed to be the more accurate and up-to-date, if there are any discrepancies between the video and the written manual, | ||
+ | |||
+ | A user contributed [[battery_compatibility: | ||
===== 10. Known Issues ===== | ===== 10. Known Issues ===== | ||
=== 10.1 Inaccurate State of Charge (SoC) Readings === | === 10.1 Inaccurate State of Charge (SoC) Readings === | ||
- | Each BYD battery module has it’s own BMS. This BMS reports it’s battery information to the BMU which is connected to the [[venus-os: | + | Each BYD battery module has it’s own BMS. This BMS reports it’s battery information to the BMU which is connected to the [[venus-os: |
Each BYD module BMS has a threshold current of 1A (~50W) before it begins to report. For multiple modules, this is additive. So 4 modules could supply a 180W load and report it as 0 W. | Each BYD module BMS has a threshold current of 1A (~50W) before it begins to report. For multiple modules, this is additive. So 4 modules could supply a 180W load and report it as 0 W. | ||
Line 367: | Line 391: | ||
=== Work-arounds === | === Work-arounds === | ||
- | If precise state of charge is important, it is possible to install a Victron BMV shunt, and program the [[venus-os: | + | If precise state of charge is important, it is possible to install a Victron BMV shunt, and program the [[venus-os: |
The limitations of this method are if cells are added, removed or shut down, the BMV will continue to report SoC based on the total Ah of storage set. | The limitations of this method are if cells are added, removed or shut down, the BMV will continue to report SoC based on the total Ah of storage set. | ||
Line 407: | Line 431: | ||
There has been a firmware revision for the BYD battery modules and BMU that improves cold weather performance slightly. This manual will be updated with the new (slightly improved) specifications when stock supplied with the new firmware has had sufficient time to enter the market. Contact your BYD distributor for further information about this. | There has been a firmware revision for the BYD battery modules and BMU that improves cold weather performance slightly. This manual will be updated with the new (slightly improved) specifications when stock supplied with the new firmware has had sufficient time to enter the market. Contact your BYD distributor for further information about this. | ||
+ | |||
+ | === 10.4 Self-Startup from Low voltage shutdown modes === | ||
+ | |||
+ | In a correctly configured system, the inverter will shut itself down before the batteries enter a self protective shut down state. | ||
+ | |||
+ | If your system is supplied only with AC-bus solar charging, this may prevent the solar inverter from starting up to recharge the batteries. Therefore it is strongly recommended that there is also either a generator or DC MPPT charge controller to provide DC bus power to bring the inverter back online to allow normal recharging to resume. | ||
+ | |||
+ | Even a single 100/20 48V MPPT charger unit with 2 x 60 cell solar panels would be sufficient to add this self correcting mechanism able to maintain the DC bus voltage and improve longterm system reliability considerably from accidental deep discharge and subsequent shut down. | ||
+ | |||
===== 11. Further Information ===== | ===== 11. Further Information ===== | ||
Line 416: | Line 449: | ||
===== DISQUS ===== | ===== DISQUS ===== | ||
~~DISQUS~~ | ~~DISQUS~~ | ||
- |
battery_compatibility/byd_b-box.txt · Last modified: 2024-01-22 07:32 by guy_stewart