BYD HVS 5.1 Manual
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BYD HVS 5.1 Manual

BYD HVS 5.1 Manual

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BYD Battery-Box Premium HVS&HVM
Service Guideline and Checklist for BCU-V2.0
Version 1.0
Valid for HVS 5.1 / 7.7 / 10.2 / 12.8
HVM 8.3 / 11.0 / 13.8 / 16.6 / 19.3 / 22.1
Important: The installation and all other kinds of works or measurements in correlation with the Battery-Box
Premium are only allowed by professional and qualified electricians.
This checklist is a shortened assistance for the Battery-Box and does not replace the original manual, which can
be found on
www.bydbatterybox.com
modifications; no responsibility is accepted for the accuracy of this information.
Attention: High Voltage! Improper handling can cause danger and damage.
Always make sure to use the latest version of this service document,
available at: www.bydbatterybox.com
/
www.eft-systems.de
/ www.alpspower.com.au. Subject to technical

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Summary of Contents for BYD HVS 5.1

  • Page 1 Service Guideline and Checklist for BCU-V2.0 Version 1.0 Valid for HVS 5.1 / 7.7 / 10.2 / 12.8 HVM 8.3 / 11.0 / 13.8 / 16.6 / 19.3 / 22.1 Always make sure to use the latest version of this service document, available at: www.bydbatterybox.com...

  • Page 2: Table Of Contents

    CONTENT CONTENT 1. GENERAL STEPS 2. ERROR ANALYSIS 2.1 BCU shows no reaction / No LED 2.2 BCU switch cannot be flipped up / LED remains on 2.3 Problem with the Firmware Update / App Configuration / Battery Wi-Fi 2.4 Battery <> inverter communication / no charging or discharging 2.5 SOC &...

  • Page 3: General Steps

    Please proceed first with the installation steps by: Name Description figuration Check if the configuration is correct. Refer to the latest “BYD Battery-Box Premium HVS & HVM Compatible Inverter List” (V2.19 or above) available at: www.bydbatterybox.com Make sure the inverter is configured correctly.

  • Page 4: Error Analysis

    2. ERROR ANALYSIS 2.1 BCU shows no reaction / No LED LED does not light up, although the system is switched on. Name Description Module quantity Check if the module quantity ful fills the minimum requirement (HVS: 2, HVM: 3 modules) and check the “Compatible Inverter List”...

  • Page 5: Problem With The Firmware Update / App Configuration / Battery Wi-Fi

    2.3 Problem with the Firmware Update / App Configuration / Battery Wi-Fi The BCU consists of two components: the BMU and the BMS. The firmware update from the app will update the BMU, which will then update the BMS. The BMS will only be updated once there is communication between the battery and the inverter or immediately after the app configuration.

  • Page 6: Battery <> Inverter Communication / No Charging Or Discharging

    2.4 Battery <> inverter communication / no charging or discharging Name Description Configuration Check if the configuration is correct. Refer to the latest “BYD Battery-Box Premium HVS &HVM Compatible Inverter List” (V2.19 or above) available at: www.bydbatterybox.com Make sure the inverter is configured correctly.

  • Page 7: Soc & Charging Logic

    2.5 SOC & charging logic Name Description SOC at commissioning New HVS / HVM modules are delivered with a 30% SOC, while a new BCU might show a different SOC at the beginning (mostly 50% / 30% / 0%). The latter one should be understood as a placeholder value, since a new BCU cannot measure the SOC of modules.

  • Page 8: Module Extension / Parallel Connection

    A DC bus bar is needed to collect DC cables. There is a matching DC combiner box from BYD for the HVS / HVM. Please refer to the corresponding data sheet and manual of the BYD combiner box for details.

  • Page 9: Be Connect Plus (Bcp)

    2.8 Be Connect Plus (BCP) Be Connect Plus is a PC tool. With Be Connect Plus (BCP) you can: Read battery information Configure the battery system Update BMU & BMS firmware Export / download battery logs BCP is constantly being improved and updated. Make sure to use the latest program version. You can download the latest version of the tool at www.bydbatterybox.com / www.eft-systems.de / www.alpspower.com.au.

  • Page 10: Led Event Code (Ec)

    2.9 LED event code (EC) A steady white LED indicates standby mode, while a blinking white LED means charging or discharging. During battery initialization, the LED will flash white and blue with an interval time of 0.5 seconds (normal during startup). When the LED flashes blue with an interval time of 1 second, it indicates an event code.
  • Page 11 EC 203 Incorrect module quantity / Module not detected EC 303 EC 403 - Make sure the app configuration has been completed correctly (especially the module type EC 503 and quantity). EC 603 - EC 203 to EC 803 means that a module is not recognized. The first number (= number of EC 703 white LED flashes) indicates which module is probably affected.
  • Page 12 EC 111 Normal when the battery has just started. LED will turn to steady white when: - inverter communication works (--> Check inverter communication, Section 2.4) - right after saving / redoing the configuration (Be Connect 2.0: go through whole wizard / Be Connect Plus: resave the configuration by using the “Setup”...

  • Page 13: Voltage Measurement And Undervoltage

    2.10 Voltage measurement and undervoltage ATTENTION: High voltage! You can see the max. and min. cell voltage in the Be Connect 2.0 app. You can also get the detailed module and cell voltage in the BCP Program (section 2.8) or measure it manually according to the description below: Measurement of Tower Voltage Remove the BCU and measure the tower voltage on the topmost module as shown below.

  • Page 14: Identifying A Faulty Module / Module Exclusion Method

    Undervoltage A module in which one of the 32 (HVS) / 16 (HVM) cells has a voltage of <1.5 V is considered to be in undervoltage (check with BCP [section 2.8] / Be Connect 2.0 if possible). A HVS module with >90 V and a HVM module with >45 V should be fine, and you can continue to check other items according to this service guideline.

  • Page 15: Service Tasks

    3. SERVICE TASKS Please go through the general steps beforehand, see chapter 1. 3.1 BCU replacement Have you detected a faulty BCU? After replacing the BCU, please remember to redo the configuration and firmware-update with the app or BCP. 3.2 Module Replacement Have you detected a faulty module? In the meantime, you can continue to use the battery system with the remaining modules and a correspondingly reduced capacity (taking into account the minimum number of modules).

  • Page 16: Service Checklist And Contact Information

    BYD Battery-Box Premium HVS&HVM Service Checklist - V1.0 EN Important: The installation and all other kinds of works or measurements in combination with the BYD Battery-Box are only allowed by professional and qualified electricians. Improper handling can cause danger and damage. This document does not replace the official BYD manuals and documents.

This manual is also suitable for:

Hvs 7.7Hvs 10.2Hvs 12.8Hvm 8.3Hvm 11.0Hvm 13.8 ... Show all

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