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BYD Battery-Box Premium LVL
Service Guideline and Checklist
Version 1.1
Valid for Premium LVL 15.4
LVL 15.4 (max. 64 per system)
Important: The installation and all other kinds of works or measurements in combination 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
w ww.bydbatterybox.com
modifications; no responsibility is accepted for the accuracy of this information. Attention: Improper handling
can cause danger and damage.
Make sure to always use the latest version of this service document,
available at: www.bydbatterybox.com
/
w ww.eft-systems.de
BMU (1 x per system)
/
w ww.alpspower.com.au
. Subject to technical
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Table of Contents
Related Manuals for BYD Battery-Box Premium LVL
Summary of Contents for BYD Battery-Box Premium LVL
- Page 1 BYD Battery-Box Premium LVL Service Guideline and Checklist Version 1.1 Valid for Premium LVL 15.4 LVL 15.4 (max. 64 per system) BMU (1 x per system) ...
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Page 2: Table Of Contents
CONTENT CONTENT 1. GENERAL STEPS 3 2. ERROR ANALYSIS 2.1 BMU shows no reaction / No LED 2.2 Communication problem with Inverter 2.3 Problem with the Firmware Update / App Configuration 2.4 BMU/BMS LED event code (EC) 2.5 Be Connect Plus (BCP) 2.6 Voltage measurement and undervoltage 3. -
Page 3: General Steps
Please proceed first with the installation steps by: No. Name Description 1 Configuration Check if the configuration is correct. Refer to latest “BYD Battery-Box Premium LVL Minimum Configuration List” (V1.3 or above) available at: ww.bydbatterybox.com Make sure the inverter is configured correctly. 2 Correct internal ... -
Page 4: Error Analysis
2. ERROR ANALYSIS Please refer to the general steps before proceeding, see chapter 1. 2.1 BMU shows no reaction / No LED LEDs of BMU do not light up, although the battery is ON. No. Name Description 9 Check correct cable port ... -
Page 5: Communication Problem With Inverter
2.2 Communication problem with Inverter No. Name Description 16 Configuration Check if the configuration is correct. Refer to latest “BYD Battery-Box Premium LVL Minimum Configuration List” (V1.3 or above) available at: www.bydbatterybox.com Make sure the inverter is configured and working correctly. 17 Communication cable ... -
Page 6: Problem With The Firmware Update / App Configuration
2.3 Problem with the Firmware Update / App Configuration The Battery Management 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. T he BMS update can take up to 30 Minutes until the firmware is updated on the BMS... -
Page 7: Bmu/Bms Led Event Code (Ec)
2.4 BMU/BMS LED event code (EC) A constant white LED refers to standby mode. White blinking means charge or discharge. When the battery is initiating, 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 8 EC 104 EC 103 - Check if there is any sign of short circuit in the BICs (e.g. component damage - what is the BIC part is shown in section 3.3) - Check the sampling cables connection: B2+ up left / B1+ bottom left / B2- up right / B1- bottom right ...
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Page 9: Be Connect Plus (Bcp)
2.5 Be Connect Plus (BCP) Be Connect Plus is a PC tool. With Be Connect Plus (BCP) you can: read the battery information, configure the battery system update BMU & BMS firmware update Parameter Table Export / download battery logs ... -
Page 10: Voltage Measurement And Undervoltage
2.6 Voltage measurement and undervoltage Attention: Make sure not to create a short circuit! You can see the max. and min. cell voltage in the BeConnect App. You can get the detailed module and cell voltage in the BCP Program (section 2.5) or measure it manually according to the below description: ... - Page 11 Undervoltage A LVL in which one of the 16 cells has a voltage of <1.5 V is in undervoltage (check with BCP ( s ection 2.5 ) / BC if possible). - LVL with >45 V should be fine and you can continue to check other points according to this service guideline. - If the LVL voltage is <45V but the single cell voltage is >1.5V, the battery needs to be charged quickly while ...
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Page 12: Service Tasks
3. SERVICE TASKS Please go through the general and error specific steps beforehand, see chapter 1 and 2. 3.1 BMU Replacement Have you detected a faulty BMU?: After replacing the BMU, please do not forget to re-do the configuration and firmware-update in the app. ... -
Page 13: Service Checklist And Contact Information
BYD Battery-Box Premium LVL Service Checklist - V1.1 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.
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