battery_compatibility:byd_b-box
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battery_compatibility:byd_b-box [2020-03-18 13:35] – guy_stewart | battery_compatibility:byd_b-box [2020-03-19 16:34] – [3. CAN-Bus wiring between the battery and GX Device] guy_stewart | ||
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- | ====== Victron & BYD B-Box ===== | + | ^ Battery ^ Pro 2.5-10.0 ^ Pro 12.8 & 13.8 ^ L 3.5-14.0 ^ Premium LVL 15.4 ^ Premium LVS 3.8 ^ |
- | + | | Appearance | {{ : | |
- | 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. | + | | ESS | yes| yes| yes| yes| yes| |
- | + | | Grid Backup| | |
- | 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: | + | | Off-Grid| |
- | + | | Module capacity| | |
- | + | | Module limit | 32| 32| 12| 64| 64| | |
- | + | | Max capacity| | |
- | ^ Battery ^ Pro 2.5-10.0 ^ Pro 12.8 & 13.8 ^ L 3.5-14.0 ^ Premium LVL 15.4 ^ | + | |
- | | Appearance | {{ : | + | |
- | | ESS | yes| yes| yes| yes| | + | |
- | | Grid Backup| | + | |
- | | Off-Grid| | + | |
- | | Module capacity| | + | |
- | | Module limit | 32| 32| 12| 64| | + | |
- | | Max capacity| | + | |
- | + | ||
- | + | ||
===== 1. Product & System compatibility ===== | ===== 1. Product & System compatibility ===== | ||
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* Grid Backup | * Grid Backup | ||
* Off-grid | * Off-grid | ||
- | |||
- | |||
=== 1.2 A GX device is required, eg Cerbo GX, Color Control GX (CCGX), Venus GX (VGX), etc === | === 1.2 A GX device is required, eg Cerbo GX, Color Control GX (CCGX), Venus GX (VGX), etc === | ||
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It is essential to use the BMS-Can (or CAN-bus) connection of a [[venus-os: | It is essential to use the BMS-Can (or CAN-bus) connection of a [[venus-os: | ||
- | When used with B-Box Pro series batteries, the minimum supported firmware version for the [[venus-os: | + | When used with B-Box Pro series batteries, the minimum supported firmware version for the [[venus-os: |
=== 1.3 All 48V Multis, MultiPlusses, | === 1.3 All 48V Multis, MultiPlusses, | ||
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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 Solar Charger compatibility === | ||
+ | All 48V BlueSolar and SmartSolar VE.Direct MPPT Chargers are compatible (*). | ||
+ | Some of our Solar Chargers feature a VE.Direct communication port, some feature a VE.Can communication port, and some feature both. Both of these types of communication ports can be used to connect the Solar charger to the GX Device. Such connection is mandatory, because it is used to regulate charge currents and voltages. | ||
- | === 1.4 All 48V BlueSolar and SmartSolar VE.Direct MPPT Chargers are compatible === | + | When planning |
- | + | ||
- | For proper operation, the B-Box battery needs to be able to control the charge current of the solar MPPTs. | + | |
- | It is recommended | + | |
- | + | ||
- | __MPPTs with a VE.Direct port__ | + | |
- | + | ||
- | MPPTs are controlled via the [[venus-os: | + | |
- | + | ||
- | The MPPT requires connection to the [[venus-os: | + | |
- | To test operation, try disconnecting the [[venus-os: | + | |
- | + | ||
- | __MPPTs with a VE.Can port and VE.Direct port__ | + | |
- | + | ||
- | Firmware should be at least version 1.04. | + | |
- | + | ||
- | When using VE.Can MPPT' | + | |
- | Please note that older model VE.Can MPPTs (without VE.direct | + | (*) with exception of the models “BlueSolar MPPT 150/70 CAN-bus” |
=== 1.5 Battery compatibility === | === 1.5 Battery compatibility === | ||
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| B-BOX L 3.5-14.0 | | B-BOX L 3.5-14.0 | ||
| B-BOX Premium LVL 15.4 | | | B-BOX Premium LVL 15.4 | | ||
+ | | B-BOX Premium LVS 3.8 | | ||
BYD also releases firmware update for their BMU and BMS. | BYD also releases firmware update for their BMU and BMS. | ||
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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: | 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 | + | BYD B-Box Premium 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 ===== | ||
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=== Battery Modules Required - Pro 2.5 === | === Battery Modules Required - Pro 2.5 === | ||
- | |||
|Phases| | |Phases| | ||
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| EasySolar 48/ | | EasySolar 48/ | ||
| EasySolar 48/ | | EasySolar 48/ | ||
- | |||
- | **" | ||
- | The specification for these minimum battery sizes was obtained from [[http:// | ||
+ | === Battery Modules Required - Premium LVS 3.8 === | ||
+ | |Phases| | ||
+ | | Inverter/ | ||
+ | | | ||
+ | | | ||
+ | | | ||
+ | | Quattro 48/ | ||
+ | | Quattro 48/ | ||
+ | | Quattro 48/ | ||
+ | | | ||
+ | | | ||
+ | * Note for 7 units two stacks are required. One stack is 4 battery modules, the other is 3. | ||
- | ===== 3. CANBus Wiring | + | **" |
+ | |||
+ | The specification for these minimum battery sizes was obtained from [[http:// | ||
+ | |||
+ | |||
+ | ===== 3. CAN-Bus wiring between the battery and GX Device | ||
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: | ||
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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 Legacy Systems using Allow-to-charge and allow-to-discharge contacts === | + | |
- | + | ||
- | This section is for Legacy systems that have VE.Can MPPTs without a VE.Direct port, and BYD B-Box Pro batteries. These systems were configured using Allow-to-charge contacts. This configuration is not supported with Premium LVL, or other BYD batteries. | + | |
- | + | ||
- | 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 MPPTs with a VE.Can (and no VE.Direct port) 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. | + | |
- | + | ||
- | B-Box relays: | + | |
- | + | ||
- | * Relay T1-T2: closed if allowed to discharge | + | |
- | * Relay T4-T5: closed if allowed to charge | + | |
- | + | ||
- | {{: | + | |
===== 4. VEConfigure settings ===== | ===== 4. VEConfigure settings ===== | ||
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- | ===== 5. GX device | + | ===== 5. GX device |
On the [[venus-os: | On the [[venus-os: | ||
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|Shared Voltage Sense |OFF| | |Shared Voltage Sense |OFF| | ||
- | If you have a VE.Can MPPT, it is advised to use the Venus GX in place of the CCGX. | ||
* Select the //CAN-bus BMS (500 kbit/s)// CAN-profile in the CCGX. Menu path: //Settings -> Services -> CAN-profile// | * Select the //CAN-bus BMS (500 kbit/s)// CAN-profile in the CCGX. Menu path: //Settings -> Services -> CAN-profile// | ||
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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. | ||
- | ===== 6. VE-Direct MPPT Settings | + | ===== 6. Solar Charging |
- | In normal operation the MPPT charge characteristics are governed by the [[venus-os: | + | ==== 6.1 Victron MPPT charger settings ==== |
- | This section presumes familiarity with [[victronconnect:start|VictronConnect]] | + | Victron MPPT charge characteristics are automatically configured & governed by the [[venus-os:start|GX device]]. The settings below are a precautionary measure only: |
- | The settings below are a precautionary measure. | + | ^ MPPT Parameter ^ Setting ^ |
- | + | |Battery voltage | |
- | ^MPPT Parameter ^ Setting ^ | + | |
- | |Battery voltage. |48V| | + | |
|Absorption voltage | |Absorption voltage | ||
+ | Use [[victronconnect: | ||
+ | |||
+ | ==== 6.2 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 charged only with an AC-coupled PV inverter, this may prevent the AC-coupled PV 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. | ||
===== 7. Example Wiring Diagram ===== | ===== 7. Example Wiring Diagram ===== | ||
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* 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 Installation Guide ===== | ===== 9. Step by Step Installation Guide ===== | ||
There is a step by step installation video that demonstrates the essential connections and programming that is required for installation of a BYD battery in a Victron system. It is accessible via the [[https:// | There is a step by step installation video that demonstrates the essential connections and programming that is required for installation of a BYD battery in a Victron system. It is accessible via the [[https:// | ||
- | |||
- | |||
[[https:// | [[https:// | ||
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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, | 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: | + | A user contributed [[battery_compatibility: |
- | ===== 10. Known Issues ===== | + | |
+ | ===== 10. Known Issues | ||
+ | |||
+ | The following information only applies to the B-Box Pro models, and not to the B-Box Premium models. | ||
- | === 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: | ||
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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. | + | ===== 11. Legacy systems using allow-to-charge and allow-to-discharge contacts ===== |
- | If your system | + | For proper operation, the B-Box battery needs to be able to control the charge current of the solar MPPTs. Which for all modern models |
+ | |||
+ | The purpose of this chapter is to serve as reference guide for legacy systems using those two solar charger models. 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. | ||
+ | |||
+ | Note that these charges cannot be used with the BYD Premium LV batteries, since they do not feature the required free contacts. | ||
+ | |||
+ | === Legacy system wiring details === | ||
+ | |||
+ | The Remote On/Off input of the two mentioned solar charger models | ||
+ | |||
+ | B-Box relays: | ||
+ | |||
+ | * Relay T1-T2: closed if allowed | ||
+ | * Relay T4-T5: closed if allowed to charge | ||
+ | |||
+ | Picture showing these connections on the BYD B-Box battery: | ||
+ | |||
+ | {{: | ||
- | 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 ===== | + | ===== 12. Further Information ===== |
For information about where to buy or find suitably qualified installers, visit the [[https:// | For information about where to buy or find suitably qualified installers, visit the [[https:// |
battery_compatibility/byd_b-box.txt · Last modified: 2024-01-22 07:32 by guy_stewart