BYD Battery-Box Premium LVS User Manual

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BYD Battery-Box Premium LVS
Service Guideline and Checklist
Version 1.0
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Valid for Premium LVS 4.0 / 8.0 / 12.0 / 16.0 / 20.0 / 24.0
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LVS 16.0 (4 Modules + PDU - max. 64 Modules in 16 Towers per System) BMU (1 x per System)
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Make sure to always use the latest version of this service document,
available at: www.bydbatterybox.com
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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 www.bydbatterybox.com / www.eft-systems.de / www.alpspower.com.au. Subject to technical          
modifications; no responsibility is accepted for the accuracy of this information. Attention: Improper handling             
can cause danger and damage.

BYD Battery-Box Premium LVS Specifications

General

Battery Type	Lithium Iron Phosphate (LFP)
Nominal Voltage	51.2 V
Operating Temperature Range	-10°C to +50°C
Protection Rating	IP55
Communication	CAN
Certifications	IEC 62619, CE, UN38.3
Cycle Life	6000 cycles

Summary

General Steps for BYD Battery-Box Premium LVS

Configuration Check

Verify system configuration against the Minimum Configuration List.

External Cabling and Grounding

Ensure correct external cabling, grounding, and DC port connections.

Latest Firmware Update

Install or update the system to the latest firmware version.

App Configuration Procedure

Mandatory commissioning of the battery system via the 'Be Connect' App.

System Restart Procedure

Properly restart the system by switching the battery off and then on.

Switch-On Procedure

Follow the correct sequence for switching on the battery and inverter.

Verifying Correct Operation

Check inverter display for battery SOC and observe charge/discharge.

Error Analysis and Troubleshooting

BMU No Reaction or No LED

Troubleshoot scenarios where the BMU shows no activity or illumination.

Communication Issues with Inverter

Resolve problems related to communication failure between battery and inverter.

Firmware Update and App Configuration Problems

Address issues encountered during firmware updates or app configuration.

BMU/BMS LED Event Codes (EC)

Interpret and resolve errors indicated by BMU/BMS LED event codes.

Be Connect Plus (BCP) Tool Usage

Utilize the Be Connect Plus PC tool for system diagnostics and data logging.

Voltage Measurement and Undervoltage

Measure battery voltage and diagnose undervoltage conditions.

Visual Check of Modules

Perform a visual inspection of module pins for any physical damage.

Identifying a Faulty Module

Methods to identify and isolate a malfunctioning LVS module within the system.

Service Tasks and Replacements

BMU Replacement Procedure

Steps and considerations for replacing the Battery Management Unit (BMU).

PDU Replacement Procedure

Instructions for replacing the Power Distribution Unit (PDU).

LVS Module Replacement

Guidelines for replacing an LVS module and re-configuring the system.