BYD B-Box H6.4 User manual

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B-Box H 6.4~11.5
Installation Guidance
Rev.1_Aug.2017

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Contents
SAFETY ...................................................................................................................................................................................................................................................... 3
1 PRODUCT OVERVIEW ......................................................................................................................................................................................................................... 4
2 BCU INTRODUCTION ........................................................................................................................................................................................................................... 6
3 DESCRIPTION OF B-PLUS-H INTERFACE AND TERMINAL.......................................................................................................................................................... 8
4 B-BOX HV INVERTER CONFIGURATION LIST................................................................................................................................................................................ 9
4.1 B-BOX HV CONFIGURATION LIST WITH SMASUNNY BOY STORAGE .............................................................................................................................................................9
4.2 B-BOX HV CONFIGURATION LIST WITH KOSTAL PIKO....................................................................................................................................................................................9
5 PREPARATION ..................................................................................................................................................................................................................................... 10
5.1 INSTALLATION INSTRUCTIONS .......................................................................................................................................................................................................................10
5.2 PACKING INFORMATION AND SYSTEM STRUCTURE CONFIGURATION LIST.....................................................................................................................................................10
5.3 STRUCTURE CONFIGURATION LIST................................................................................................................................................................................................................11
5.4 INSTALLATION TOOLS....................................................................................................................................................................................................................................11
5.5 PERSONAL PROTECTION EQUIPMENT.............................................................................................................................................................................................................12
6 INSTALLATION OF SINGLE SYSTEM.............................................................................................................................................................................................. 13
7 CONNECTING WITH THE INVERTER............................................................................................................................................................................................. 19
8 SYSTEM BOOT..................................................................................................................................................................................................................................... 22
8.1 SWITCH ON THE AIR SWITCH OF BATTERY.....................................................................................................................................................................................................22
8.2 SET THE BCU................................................................................................................................................................................................................................................22
8.3 SWITCH OFF THE BATTERY ............................................................................................................................................................................................................................35
8.4 SWITCH ON THE INVERTER.............................................................................................................................................................................................................................35
8.5 SWITCH ON THEAIR SWITCH OF THE BATTERY,AND THE SYSTEM CAN WORK NORMALLY...............................................................................................................................35
9 SYSTEM SHUTDOWN ......................................................................................................................................................................................................................... 35
Website of installation video:http://www.byd.com/energy/b-box-25.htm

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Safety
Warning
When disassembling the system, avoid touching the battery terminal with any metal objects or human body.
All work relating to electrical connections of the system shall be carried out by qualified personnel only.
All operations of B-Box H relating to electrical connection must be done by professionals.
B-Box H provides a safe source of electric energy when operated as designed.
Potentially hazardous circumstances such as excessive heat or electrolyte mist may occur under improper operating conditions, damage, misuse and abuse. The
following safety precautions and the warning messages described in this section must be observed and complied. If any of the following precautions are not fully
understood, or if you have any questions, contact customer service for guidance.
Installation and maintenance personnel must review and operate according to applicable federal, state and local regulations as well as the industry standards regarding this
product.
Installation workers may not wear metal accessories, etc. in order to avoid short circuit and personal injury.
Warning
During loading, unloading and handling of the product, be cautious, and avoid accidents of product damage and personal injury due to the falling of product.
When adding battery, first disconnect the power supply of the battery and other power input.
To avoid danger, DO NOT remove the BCU module when the system is in operation.

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1 Product Overview
B-Box H is the abbreviation of high-voltage battery box, with the operating voltage range within 200~500V. It is applied to the household
energy storage field and works together with high-voltage inverter to realize energy storage and release. Each set of battery of the system
supports the serial connection of 5~9 battery modules, and parallel connection of 2~5 sets of systems

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Position
Designation
A
Base
B
B-Plus-H
C
BCU
A
C
A
B
C

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2 BCU Introduction
The battery management and control part, which contains BCU and charge-discharge relay, and connected to the battery modules underneath and to inverter or BMU
above.
Position
Designation
Left side terminals
A
Ethernet
B
CAN (Inverter)
C
Grounded
D
P-
E
P+
Position
Designation
Right side terminals
A
Air switch waterproof
cover
B
System Air switch

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Definition of BCU Functional Interfaces
No.
Interface Name
Description
1
P+
The system positive terminal, connected to the positive terminal of battery interface of inverter.
2
P-
The system negative terminal, connected to the negative terminal of battery interface of inverter.
3
GND
Grounding terminal, connected to the ground.
4
Ethernet
Connected to the Ethernet, to complete the functions of communication and remote program update.
5
Inverter
communication
Contain RS485, CAN, and enable signals, outputting 13V power.
6
System switch
The main switch of system, which can be operated manually and has short circuit protection function.

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3 Description of B-Plus-H Interface and Terminal
The battery module provides energy and sends the information about the cell voltage and cell temperature in the battery module to the upper-layer BCU.
Pluggable terminal on the battery
Side-lock, used to lock the upper and
lower batteries.
8
7

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4 B-Box HV Inverter Configuration List
4.1 B-Box HV Configuration List with SMA Sunny Boy Storage
1 Phase on Grid
Inverter Type
B-Plus-H quantity
BCU quantity
SBS 2.5
5 ~ 9
1
4.2 B-Box HV Configuration List with Kostal Piko
3 Phase on Grid
Inverter Type
B-Plus-H quantity
BCU quantity
PIKO 6.0 BA
5 ~ 9
1

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5 Preparation
5.1 Installation Instructions
a) Before installation, ensure that BCU manual switch is switch off.
b) The battery shall be installed in a place away from heating source and avoid sparks. The safety distance is greater than 0.5m.
c) The connecting cables for installing batteries shall be as short as possible, to prevent excessive voltage drop.
d) Batteries of different capacity, different P/N or from different manufacturers cannot be connected.
e) After installation, ensure the positive and negative terminals of BCU and inverter are connected correctly.
f) The installation place shall be on a flat ground, without accumulated water.
5.2 Packing Information and System Structure Configuration List
The battery, BCU+ base are packed in separate carton. Before installation, the installation personnel shall read the system configuration list.
No.
Item Description
Qty
Purpose
Picture
1
Installation Manual
1
Provide guidance for field installation.
\
2
User Manual
1
System information and using method
and warranty items.
\

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5.3 Structure Configuration List
Type
H6.4
H7.7
H9.0
H10.2
H11.5
BCU + base
1
1
1
1
1
B-Plus-H
5
6
7
8
9
User manual
1
1
1
1
1
Installation
Manual
1
1
1
1
1
5.4 Installation Tools
Cross screwdriver
M3~M10
Flat tip screwdriver
M3~M6
Crimping pliers
Diagonal cutters
Impact drill
Adjustable wrench
Inner hexagon spanner

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5.5 Personal Protection Equipment

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6 Installation of Single System
Step 1: open the battery package;
Pearl wool
Battery
Plastic bag
Pearl wool
Carton

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Step 2: Take out the BCU & Base, BCU & Base are locked and packed in the same box (the method is the same as the first step); unlock the lock with inner hexagon
spanner, separate the BCU and the base.
Tool: Inner hexagon spanner
BCU & Base
B-Plus-H
Base
BCU

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Step 3: adjust the support of the base; drill 4 holes on the wall with M6 expansion bolt (the distance between ground and the bottom holes depends on different
module numbers, please refer to picture below; the distance between the bottom two holes and upper two holes is 80mm; the distance between the right two holes
and left two holes is 200mm; the distance between the right edge to the right two holes is 190mm; the distance between the left edge to the left two holes is 190mm.);
mount the fixing plate to the wall, and install the fixing arch onto the BCU module.
Tools: Cross screwdriver, impact drill, adjustable wrench
Fixing plate
Fixing plate
Fixing arch

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Serial number
5
6
7
8
9
Bottom hole height(mm) N
786.1
906.1
1026.1
1146.1
1266.1

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Step 4: Install the batteries (5pcs~9pcs), and lock the batteries with the base, ; then install BCU, and lock the batteries with BCU; the installation
is completed.
Tool: Inner hexagon spanner
B-Plus-H
Base
Stack up the B-Plus-H according to the actual quantity
required, and lock the side lock tightly.
Side lock hole
Side lock

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Install the
BCU fixing
arch into the
fixing plate.
Fixing plate
Fixing arch
Fit in the
BCU, lock
the side lock,
installation
finish.

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7 Connecting with the Inverter
Tools: Cross screwdriver, with torque force: 25±2.5Nm.
1. Open the top cover of the BCU.
2. Connect the power cable: get the positive and negative cables through the PG head, connect them into BCU case, and then install them onto the positive and negative
terminals respectively.
3. Connect the communication cable and Ethernet cable: connect the communication cable. The definition of communication cable is as follows:
Pin
Definition
Description
1
13V+
Positive terminal of 13V output
2
EN 11V+
Positive terminal for inverter enable
signal interface
3
13V-
Negative terminal of 13V output
4
EN 11V-
Negative terminal for inverter enable
signal interface
5
RS485A
6
CANH
7
RS485B
8
CANL
9
Shield
Signal line shielding layer
10
NC
Null

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P+
P-
GND
Ethernet cable
Communication cable
P+
P-