Lithion HOMEGRID COMPACT Series User manual

Compact Series
Reference Manual

Compact Series HOMEGRID Technical
Table of Contents
1. Safety Precautions.......................................................................................................... 1
1.1. General warnings............................................................................................................ 1
1.2. Charge and discharge warnings.......................................................................................2
1.3. Transportation warnings..................................................................................................3
1.4. Disposal of lithium batteries ...........................................................................................3
1.5. Before Connecting...........................................................................................................3
1.6. In Using...........................................................................................................................4
2. Introduction.....................................................................................................................5
2.1. Lithium iron phosphate battery .......................................................................................5
2.2. Compact Series................................................................................................................5
2.3. Specifications ..................................................................................................................6
2.4. Equipment Interface Instruction......................................................................................7
2.5. Sleep and Wake up........................................................................................................11
2.5.1 Sleep ........................................................................................................................11
2.5.2Wake up....................................................................................................................11
2.6. Forced discharge mode..................................................................................................12
2.7. Automatic parallel.........................................................................................................12
3. How to match communication with inverter.................................................................13
4.1. Supported brands.......................................................................................................... 13
4.2. Inverter matching list ....................................................................................................13
4.3. Connection with inverter...............................................................................................14
4. Safe handling of lithium batteries Guide ......................................................................15
5.1. Schematic Diagram of Solution ....................................................................................15
5.2. Familiar with batteries...................................................................................................15
5.3. Precautions before installation......................................................................................16
5.4. Tools..............................................................................................................................16
5.5. Safety Gear....................................................................................................................16
5. Installation.....................................................................................................................17
6.1. Package Items................................................................................................................17
6.2. Installation Location......................................................................................................18
6.3. Parallel Installation........................................................................................................19
6. Trouble Shooting Steps.................................................................................................20
7.1. Problem determination based on...................................................................................20
7.2. Preliminary determination steps....................................................................................20
7.3. The battery cannot be charged or discharged................................................................20
7. Storage, Transportation and Emergency Situations......................................................21
8.1. Storage...........................................................................................................................21
8.2. Transportation ...............................................................................................................21
8.3. Emergency Situations....................................................................................................21

While working on the Li
-
ion Battery
wear protective eyeglasses and clothing.
Any uncovered battery material such as electrolyte or powder on the skin or in
the eyes must be flushed with plenty of clean water immediately. Then seek
medical assistance. Spillages on clothing should be rinsed out with water.
Observe these instructions and keep them located near the Li-
ion Battery for
future reference.
For more information about this product, please visit the official
website:http://www.homegridenergy.com
Work on a Li
-
ion Battery should be carried out by qualified personnel only.
1.1. General warnings
Li-
ion batteries are heavy. If involved in an accident they can become a
projectile! Ensure adequate and secure mounting and
always use suitable
handling equipment for transportation.
Explosion and fire hazard. Terminals of the Li-
ion Battery are always alive;
therefore, do not place items or tools on the Li-
ion Battery. Avoid short circuits, too
deep discharges and too
high charge currents. Use insulated tools. Do not wear any
metallic items such as watches, bracelets, etc. In case of fire; you must use a type D,
foam or CO2 fire extinguisher.
Do not open or dismantle the battery. Electrolyte is very corrosive. In
nor
mal working conditions contact with the electrolyte is impossible. If the
battery casing is damaged do not touch the exposed electrolyte or powder
because it is corrosive.
Handle with care because a li
-
ion battery is sensitive to mechanical shock.
Do not expose cable outside, all the battery terminals must be disconnected
Do not place at a children or pet touchable area.
Do not use cleaning solvents to clean battery.
Compact Series HOMEGRID Technical
1. Safety Precautions
It is very important and necessary to read the user manual carefully (in the accessories) before
installing or using battery. Failure to do so or to follow any of the instructions or warnings in
this document can result in electrical shock, serious injury, or death, or can damage battery,
potentially rendering it inoperable.
Page 1 Chapter 1: Safety Precautions

Do not expose battery to flammable or harsh chemicals or vapors.
Do not paint any part of battery; include any internal or
external components.
Do not drop, deform, impact, cut or spearing with a sharp object.
Do not wet the battery and avoid of direct sunlight.
Do not use a damaged battery.
Please contact the supplier within 24 hours if there is something abnormal.
Any foreign object is prohibited to insert into any part of battery.
The warranty claims are excluded for direct or indirect damage due to items above.
1.2. Charge and discharge warnings
If the battery is stored for long time, it
is required to charge them every six months,
and theSOC should be no less than 90%.
Battery needs to be recharged within 12 hours, after fully discharged.
Do not connect battery with PV solar wiring directly.
Use only with a ZRGP approved BMS.
If charged after the Lithium Battery was discharged below the “Discharge cut
-
off
voltage”, or when the Lithium Battery is damaged or overcharged, the Lithium
Battery can release a harmful mixture of gasses such as phosphate.
The temperature range over
which the battery can be charged is 0°C to 45°C.
Charging the battery at temperatures outside this range may cause severe damage to
the battery or reduce battery life expectancy.
The temperature range over which the battery can be discharged is
-
10°C to
55°C.
Discharging the battery at temperatures outside this range may cause severe damage
to the battery or reduce battery life expectancy.
Compact Series HOMEGRID Technical
Page 2 Chapter 1: Safety Precautions

Never lift the
battery at the terminals or the BMS communication cables, only lift
the battery at the handles.
The battery must be transported in its original or equivalent package and in an
upright position. If the battery is in its package, use soft slings to avoid damage.
Do not stand below a battery when it is hoisted.
Do not throw a battery into fire.
Batteries marked with the recycling symbol must be processed via a recognized
recycling agency. By agreement, they may be returned to the manufacturer.
Batteries must not be mixed with domestic or industrial waste.
Compact Series HOMEGRID Technical
1.3. Transportation warnings
NOTE :
 Batteries are tested according to UN Handbook of Tests and Criteria, part III, sub section 38.3
(ST/SG/AC.10/11/Rev.5).
 For transport the batteries belong to the category UN3480, Class 9, Packaging Group II and have to be
transported according to this regulation. This means that for land and sea transport (ADR, RID & IMDG)
they have to be packed according to packaging instruction P903 and for air transport (IATA) according to
packaging instruction P965. The original packaging complies with these instructions.
1.4. Disposal of lithium batteries
1.5. Before Connecting
After unpacking, please check product and packing list first, if product is damaged or
lacking parts, please contact with the local retailer;
Before installation, be sure to cut off the grid power and make sure the battery is in
the turned-off mode;
Wiring must be correct, do not mistake the positive and negative cables, and ensure no
short circuit with the external device;
It is prohibited to connect the battery and AC power directly;
The embedded BMS in the battery is designed for 48VDC, please DO NOT connect
battery in series;
Battery system must be well grounded and the resistance must be less than 1ohm;
Make sure the grounding connection set correctly before operation.
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Compact Series HOMEGRID Technical
Please ensured the electrical parameters of battery system are compatible to related
equipment;
Keep the battery away from water and fire.
1.6. In Using
If the battery system needs to be moved or repaired, the power must be cut off and the
battery is completely shutdown;
It is prohibited to connect the battery with different type of battery.
It is prohibited to put the batteries working with faulty or incompatible inverter;
It is prohibited to disassemble the battery (QC tab removed or damaged);
In case of fire, only dry powder fire extinguisher can be used, liquid fire extinguishers are
prohibited;
Please do not open, repair or disassemble the battery except staffs from HomeGrid, Lithion or
authorized by HomeGrid or Lithion. We do not undertake any consequences or related
responsibility which because of violation of safety operation or violating of design, production
and equipment safety standards.
Page 4 Chapter 1: Safety Precautions

Compact Series HOMEGRID Technical
2. Introduction
The Compact Series lithium iron phosphate battery is one of new energy storage products
developed and produced by HOMEGRID, it can be used to support reliable power for various
types of equipment and systems. Compact Series is especially suitable for application scene of
high power, limited installation space, and restricted load-bearing and long cycle life.
Compact Series has built-in BMS battery management system, which can manage and monitor
cells information including voltage, current and temperature. What’s more, BMS can help
extending cycle life by balancing cells during charging and discharging.
Multiple batteries are allowed to be connected in parallel to expand capacity and power to
meet the requirements of longer power supporting duration and higher power consumption.
2.1. Lithium iron phosphate battery
The lithium iron phosphate battery (LiFePO4 or LFP) is the safest of the mainstream lithium
battery types. A single LFP cell has a nominal voltage of 3.2V. A 51.2V LFP battery consists
of 16 cells connected in series.
LFP is the chemistry of choice for very demanding applications. Some of its features are:
Rugged - It can operate in deficit mode during long periods of time.
High round trip efficiency.
High energy density - More capacity with less weight and volume.
High charge and discharge currents - Fast charge and discharges are possible.
Flexible charge voltages.
The lithium iron phosphate battery is therefore the chemistry of choice for a range of very
demanding applications.
2.2. Compact Series Features
The whole module is non-toxic, non-polluting and environmentally friendly;
Cathode material is made from LiFePO4 with safety performance and long cycle life;
Battery management system (BMS) has protection functions including over-discharge,
over-charge, and over-current and high/low temperature;
The system can automatically manage charge and discharge state and balance current and
voltage of each cell;
Adopted self-cooling mode rapidly reduced system entire noise;
The module has less self-discharge, up to 6 months without charging it on shelf, no memory
effect, excellent performance of shallow charge and discharge;
Working temperature range is from -10 to 55 degrees Celsius, (Charging 0~45 degrees
Celsius; discharging -10~55 degrees Celsius) with excellent discharge performance and cycle
life;
A vertical energy storage system. It gets rid of the traditional cabinet or cross installation
form. Beautiful design and convenient installation.
Equipped with monitoring LED display, can provide basic data visualization, more
convenient for users to observe the operation of the system.
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Compact Series HOMEGRID Technical
2.3. Specifications
Figure 2.1. Outline dimensional drawing
No. Items Parameters
1 Cell model 100Ah/3.2V
2 Combination Mode 1P16S
3 Nominal Capacity(AH) 100
4 Rated energy(WH) 5120
5 Initial Internal Resistance(mOhm) <50
6 Rated Voltage(V) 51.2
7 Charge Cut-off Voltage(V) 56.0
8 Discharge Cut-off Voltage(V) 48.0
9 Standard Charge Current(A) 20
10 Max. Charge Current(A) 100
11 Standard Discharge Current(A) 50
12 Max. Discharge Current(A) 100
13 Operating Temperature(t) -0~+45
-10~ +55
14 Open Circuit Voltage(V) 44.8~57.6
15 Shell type Painted metal
16 Weight(KG/LBS) 58±1(128 lbs)
17 Dimension(mm/in) 600(H)*480(W)*135(D)/23.6H*18.9W*5.3D
Page 6 Chapter 2: Introduction

1
2
3
Compact Series HOMEGRID Technical
2.4. Equipment Interface Instruction
No. Instructions NO. Instructions
1 Display screen 2 Power switch
3 Status code
Figure 2.2. Interface definition
No. Instructions NO. Instructions
1 Battery cathode (Positive +) 6 Multi-device parallel connection 2
2 Battery cathode (Negative -) 7 RS232 communication port
3 CAN/RS485 communication port 8 Address dial switch
4 Reset button 9 Dry contact
5 Multi-device parallel connection 1 10
Power switch
Power switch: press the switch for 3Sec until the display lights up. When power off, press the
switch 5Sec until the display goes out, BMS standby, no power output.
Display screen
Display screen: the interface can observe the operation status information SOC, SOH, charging
and discharging power, alarm fault indication, charging and discharging status display and
system status indication of the whole system.
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Compact Series HOMEGRID Technical
Status code
Status code: When the system status code is displayed as protection information, only the
value will be displayed. When the system status code is displayed as fault information, err and
fault value will be displayed The definition of alarm is shown in the table below:
numerical value Alarm indication numerical value Alarm indication
000 No breakdown 009 Low discharge
temperature
001 Over voltage
protection 011 High ambient temperature
002 Low voltage protection 012 Excessive differential
pressure
003 Charging over current
protection 013 Discharge circuit failure
004 Discharge over current
protection 014 Charging circuit fault
005 Short circuit protection 015 Cell failure
006 Charging high
temperature 016 NTC failure
007 High discharge
temperature 017 Voltage acquisition fault
008 Low charging
temperature 021 Parallel failed
NOTE:
When the system is charged, the display streamline gathers in the middle, and when it is discharged, the
display streamline disperses to both sides
Dry contact
Dry contact: provided 2 ways output dry contact signal.
Address dial switch
ADD Switch: 6 ADD switches, “0”and “1”, refer to picture right. The settings will be active
only after restarting the battery.
When the battery communicates with the inverter, the address of the battery
pack must be set to 1, and the address of the parallel slave should be greater
than 1.
When the battery Pack is connected in parallel, cascading communication is required.
Hardware address configuration is required for both the master PACK and the slave PACK,
and the hardware address can be set by the dial switch on the board. The definition of the
switch refers to the table below.
Address
Coding Dial Code Switch Position Definition
#1 #2 #3 #4 #5 #6
1 ON OFF OFF OFF OFF OFF Set the master Pack, and the inverter
communicates with the battery at that address
2 OFF ON OFF OFF OFF OFF Set to the slave Pack1
3 ON ON OFF OFF OFF OFF Set to the slave Pack 2
4 OFF OFF ON OFF OFF OFF Set to the slave Pack 3
Page 8 Chapter 2: Introduction