FOX-ESS LV2600 Low Voltage Battery User Manual

LV2600 Low Voltage Battery
User Manual

In order to prevent improper operation before use, please carefully read this manual.
The user manual version is updated frequently, the latest version can be downloaded from the official website.

Introduction

The document describes the installation, commissioning, maintenance, and troubleshooting of the following low voltage battery listed below. LV2600

The battery chemistry of this product is Lithium Iron Phosphate. This manual is designed for qualified personnel only. The tasks described in this document should be performed by authorized and qualified technicians only.
After installation, the Installer must explain the user manual to the end- user.

Symbols

| Caution, risk of electric shock.
---|---
| Do not place nor install near flammable or explosive materials.
| Install the product out of reach of children.
| Read the instruction manual before starting installation and operation.
| Do not dispose of the product with household wastes.
| Recyclable.
| Disconnect the equipment before carrying out maintenance or repair.
| Observe precautions for handling electrostatic discharge-sensitive devices.
| Grounding conductor.
| Caution, risk of electric shock, energy storage timed discharge.

safety

Any work on the Batteries should be handled by authorized technicians and hence it is understood that the technicians should familiarize themselves with the contents of this manual before any maintenance or installation is carried out on the system.

Handling

• Do not expose the battery to open flame.
• Do not place the product under direct sunlight.
• Do not place the product near flammable materials. It may lead to fire or explosion in case of an accident.
• Store in a cool and dry place with ample ventilation.
• Do not store the product near water sources.
• Store the product on a flat surface.
• Store the product out of reach of children and animals.
• Do not damage the unit by dropping, deforming,
• impacting, cutting, or penetrating with a sharp object. It may cause leakage of electrolytes or fire.
• Do not touch any liquid spilled from the product. There is a risk of electric shock or damage to the skin.
• Always handle the battery wearing insulated gloves.
• Do not step on the product or place any foreign objects on it. This can result in damage.
• Do not charge or discharge the damaged battery.
• Do not store the battery near water sources.

Installation

• Do not connect the LV2600 to inverter conductors or Photo-Voltaic conductors. This will damage the battery and may result in an explosion.
• After unpacking, please check the product for damages and missing parts.
• Make sure that the inverter and battery is completely turned off before commencing installation.
• Do not interchange the positive and negative terminals of the battery.
• Ensure that there is no short circuit of the terminals or with any external device.
• Do not exceed the battery voltage rating of the inverter.
• Do not connect the battery to any incompatible inverter.
• Do not connect different battery types together.
• Please ensure that all the batteries are grounded properly.
• Do not open the battery to repair or disassemble. Only the manufacturer is allowed to carry out any such repairs.
• In case of fire, use only a dry powder fire extinguisher. Liquid extinguishers should not be used.
• Install the batteries only inside the approved manufacturer enclosure. Installing the battery anywhere outside is strictly forbidden.
• Do not install the battery near water sources or places where the battery can get wet.
• Install the battery away from children or pets.
• Do not use the battery in a high static environment where the protection device might be damaged.
• Do not install with other batteries or cells.
• Batteries with different color labels cannot be connected in parallel.

Response to emergency situations
The battery can be used in single or multi in parallel. It is designed to prevent hazards or failures.
However, the manufacturer cannot guarantee their absolute safety.
Underexposure to the internal materials of the battery the following recommendations should be carried out by the user.

• If there has been inhalation, please leave the contaminated area immediately and seek medical attention.
• If there has been contact with the eyes, rinse the eyes with running water for 15 minutes and seek medical attention immediately.
• If there has been contacting with the skin, wash the contacted area with soap thoroughly and seek medical attention immediately.
• If there has been ingestion, induce vomiting and seek medical attention.

Fire situation
In situations where the battery is on fire if it is safe to do so, disconnect the battery pack by turning off the switch to shut off the power to the system. Use FM-200 or Co2 fire extinguisher for the battery and an ABC fire extinguisher for the other parts of the system.
Under any fire situation, please evacuate the people from the building immediately before trying to extinguish it.

Water situation
The battery modules are not water-resistant. Hence care should be taken not to get it wet. If you find the battery completely or partially submerged in water do not try to open it.  Contact authorized personnel or manufacturer for further instructions.

Product Information

LV2600 energy storage system is a 48V energy storage system based on a lithium-ion ferrous phosphate battery.
It is equipped with a customized battery management system (BMS), which is designed for energy storage applications of household photovoltaic power generation users.
In the daytime, the surplus power of photovoltaic power generation can be stored in the battery. At night or when necessary, the stored energy can be provided to the electrical equipment, it can improve the use efficiency of photovoltaic power generation, peak-load shifting, and provide emergency standby power.

Battery module specifications

Specifications for battery

Battery module| LV2600
Nominal capacity (Ah)| 50 (0.5C, 25±2°C)
Nominal voltage (Vdc)| 51.2
Nominal energy (kWh)| 2.56
Battery voltage range (Vdc)| 43.2 – 57.6
Max. continuous discharging current (A)| 50
Max. continuous charging current (A)| 50
Recommended charging current (CC-CV) (A)| 25
Charging cut off current
(constant current and constant voltage) (A)| 2.5
Peak charging current (30s) (A)| 55
Peak discharging current (30s) (A)| 90
Cycle life| ≥6000 @ 25°C @ 90% DOD
Storage temperature| -20°C – 55°C
Operating temperature range| Charge: 0C-55°C
Discharge: -20°C – 55°C
Discharge capacity (Ah)| 0°Ct2 @ 1C @ 80%
25°Ct2 @ 1C @ 100%
45°Ct2 @ 1C a 96%
Energy density (wh / kg)| 88
Ingress protection| IP21
Communication| RS485/CAN
Weight (kg)| 28.9
Dimensions (LWH) (mom| 440440116
Max. operating altitude (m)| 2000
Protective class| I

Battery charge/discharge curve

Current protection

| | Trigger| Recover
Battery charge| First level over current COC| ≥-55A, Lasts the 30s| ≥-60s: Recover
Second level overcurrent COC2| ≥60A, Lasts 1s| ≥ the 60s: Recover
Battery discharge| First level overcurrent DOC| ≥–55A, Lasts 90s| ≥-60s: Recover
Second level overcurrent DOC2| ≥-90A, Lasts the 30s| ≥-60s: Recover
Third level overcurrent SC| ≥- 150A, Lasts 1s| ≥—60s: Recover

Product Features

Battery system features
The batteries have been fitted with multiple protection systems to ensure the safe operation of the system.
Some of the protection systems include:

• Inverter interface protection: Over voltage, over current, external short circuit, reverse polarity, ground fault, over temp, inrush current.
• Battery Protection: Internal short circuit, over-voltage, over-current, over temp, under-voltage.

The battery system contains the following Interface to allow it to connect and operate efficiently.
Battery interface:

Communication parallel interface (Link Porto, Link Port1) and communication interface to inverter (CAN/RS485).

LV2600 has one Link Porto and one Link Port1 for multi-parallel communication use, one for master control, and one for slaver.
Network interface description: Link Porto is connected to the upper battery module, and Link Port1 is connected to the lower battery module. CAN / RS485 is the communication interface to the inverter. The interface is defined as follows:

Pin configuration is as follows:

Link Port 0

Link Port1

RS485

CAN

Earth terminal
This terminal is used to connect the battery to the earth for safety purposes.

Handle
The handle is used to carry or move the battery.

Power terminal
A set of positive and negative terminals to connect the battery to the inverter. Tighten the terminal screws.
In addition to the above physical features, the battery has the following performance:

1. 90% Depth of Discharge;
2. Cycle life 26000 cycles.

Installation

Items in the package
Please check if the following items are included with the package:
These are in the battery pack.

Cable (0.21 m)
(LinkPort0 to
LinkPort1)| In the Battery Package
B| Battery Negative
Power Cable
(0.26m)
C| Battery Positive
Power Cable
(0.26m)
D| Grounding Cable
(0.19m)
E| Mounting Screw
Pack
F| arth Terminal
G| User Manual
H| Quick Installation
Guide
I| Bracket| Accessory Package 1:
Bracket Package
J| Battery-Inverter
Communication Cable
(2m)
(Battery -Inverter)| Accessory Package 2:
Battery-Inverter Cable
K| Battery-Inverter
Negative Power Cable
(1.5m)
L| Battery-Inverter
Positive Power Cable
(1.5m)
M| Grounding Cable (1m)
N| Battery-Battery
Communication Cable
(2m)
(LinkPort0-LinkPort1)| Accessory Package 3:
Battery Extending Cable
O| Battery-Battery
Negative Power Cable
(1.5m)
p| Battery-Battery
Positive Power Cable
(1.5m)
Q| Battery-Battery
Grounding Cable
(1m)

J : To match the different inverters, our accessory packs are differentiated, so please look at the wire markings on the white sleeves before wiring.

J-1

RS485 (Inverter side) Pin definition:

RS485 (Battery side) Pin definition:

J-2

CAN (Inverter side) Pin definition:

CAN (Battery side) Pin definition:

Note:

1. Use only the parts included with the battery pack to ensure proper installation. If anything is damaged or missing, please contact your distributor.

2. Package 1&Package 2&Package 3 are provided separately, not included in the battery pack.
   Please contact your distributor if you do not have it. Also, you will receive J-1 or J-2 in package 2.

3. Select an interface (CAN/RS485) based on the actual inverter interface type.

4. If the definition of the communication port from your inverter to the battery is different from all of the above, please make your own communication cable.

Clearance

Make sure to leave a space of at least 300 mm. A clearance of at least 300 mm must be left around the battery pack for proper cooling.

Note: Make sure that the battery pack is always exposed to the ambient air. The battery pack is cooled by natural convection. If the battery pack is entirely or partially covered or shielded, ii may cause the battery pack to stop operating.

Tools
The following tools will be required to install the battery.

Installation steps

STEP-1
Place the front bracket and back bracket as shown above.
STEP-2
Insert the battery module into the bracket from the front horizontally, and tighten the four screws on the side.
STEP-3
Locate the brackets for the second battery on top of the first pair of the bracket and fasten the connecting button on the side.
STEP-4
Insert the battery module into the bracket from the front horizontally, and tighten the four screws on the side.

Wiring and stacking
Wiring confirmation: Check whether the power wiring is tight and whether the positive and negative polarities are correct. Check if the wiring of the parallel network port is correct.

Note:
Max. 6 pieces battery per stack. If more than 6 pieces, there may be a risk of collapse.

Battery modules less than 6 pieces: Please stack in one row.

Such as:

Battery modules more than 6 pieces:

It is required to install in 2 stacks and try to ensure the number of the two stacks of the batteries are almost the same.

Such as:

Detailed wiring diagram

Note:
The red cable is connected to the”+” the black cable is connected to the”

Connect the power cable starting from the first battery module in parallel with other battery modules. Tighten the screws. The positive and negative connection of the battery cable is shown below.

System startup

• When connected to the inverter, turn on the battery first to ensure that the battery voltage output is normal, then turn on the inverter.
• All installation and operation must comply with local electrical standards.
• Check all power cables and communication cables carefully.

Turn on the power switch
Dial address selection
Please refer to the parameters in the following table:

– ADD

Number
of batteries| Master| Slave
1| Slave
2| Slave
3| Slave
4| Slave
5| Slave
6| Slave
7| Slave
8| Slave
9| Slave
10| Slave
11
---|---|---|---|---|---|---|---|---|---|---|---|---
1| 0001
0000| | | | | | | | | | |
2| 0010
0000| 0000
0001| | | | | | | | | |
3| 0011
0000| 0000
0001| 0000
0010| | | | | | | | |
4| 0100
0000| 0000
0001| 0000
0010| 0000
0011| | | | | | | |
5| 0101
0000| 0000
0001| 0000
0010| 0000
0011| 0000
0100| | | | | | |
6| 0110
0000| 0000
0001| 0000
0010| 0000
0011| 0000
0100| 0000
0101| | | | | |
7| 0111
0000| 0000
0001| 0000
0010| 0000
0011| 0000
0100| 0000
0101| 0000
0110| | | | |
8| 1000
0000| 0000
0001| 0000
0010| 0000
0011| 0000
0100| 0000
0101| 0000
0110| 0000
0111| | | |
9| 1001
0000| 0000
0001| 0000
0010| 0000
0011| 0000
0100| 0000
0101| 0000
0110| 0000
0111| 0000
1000| | |
10| 1010
0000| 0000
0001| 0000
0010| 0000
0011| 0000
0100| 0000
0101| 0000
0110| 0000
0111| 0000
1000| 0000
1001| |
11| 1011
0000| 0000
0001| 0000
0010| 0000
0011| 0000
0100| 0000
0101| 0000
0110| 0000
0111| 0000
1000| 0000
1001| 0000
1010|
12| 1100
0000| 0000
0001| 0000
0010| 0000
0011| 0000
0100| 0000
0101| 0000
0110| 0000
0111| 0000
1000| 0000
1001| 0000
1010| 0000
1011

Note: “1” indicates that the Dip switch is “ON”, “O” indicates that the Dip switch is “OFF”. And it also indicates the position of the Dip switch. For example, “0001 0000” indicates that the 4th Dip switch is “ON”, the rest are all “OFF”.

1. Please change the address switch in the right position accordingly base on the system battery quantity before powering on the battery.
2. After pressing the power switch for 1s, all LEDs will be on and flashing, which indicates that the battery is started normally. After pressing the “start” button for 3s, the battery will turn on the discharge function.

Commissioning

There are seven LED indicators on the front of the battery packs to show its operating status.
Fault status indicated by indicator:
Off
On
Flash

1. The RUN indicator flash and the ALARM indicator is off: The battery is running.
   Status| Description|
   ---|---|---
   CHARGE| 0%=SOC| | | | | | |
   00/os SOC s2 0 %| | | | | | |
   20%5S 0 C 54 0 °A)| | | | | | |
   40%5S00560%| | | | | | |
   60%5S00580%| | | | | | |
   80%5 SOC < 100%| | | | | | |
   SOC =100%| | | | | | |
   DISCHARGE
   &
   STAND BY| 0%5S00520%| | | | | | |
   20%5S00540%| | | | | | |
   40%<SOC<60%| | | | | | |
   60%<SOC<80%| | | | | | |
   80%<SOC<90%| | | | | | |
   90%<SOC<100%| | | | | | |
2. RUN indicator Steady on The device is powered off or the battery is faulty and cannot be charged or discharged.
   Status| Description|
   ---|---|---
   Fault| ADC/AFE Fault| | | | | | |
   Over Voltage
   Fault| | | | | | |
   Low Voltage
   Fault| | | | | | |
   Over
   Temperature| | | | | | |
   Low
   Temperature| | | | | | |
   Over Current| | | | | | |
   Temperature
   Difference
   Alarm| | | | | | |
   Leakage Fault| | | | | | |
   Parallel
   Communication
   Fault/ADD Fault| | | | | | |
   Precharge Fault| | | | | | |
   Discharge/Char
   ge Fault| | | | | | |
3. The battery is not started or charged or discharged. Please click the start button.

Status|
---|---
Stop State| | | | | | |

Exclusion

The warranty shall not cover the defects caused by normal wear and tear, inadequate maintenance, handling, storage faulty repair, modifications to the battery or pack by a third party other than the manufacturer or manufacturer agent, failure to observe the product specification provided herein, or improper use or installation, including but not limited to the following.

• Damage during transport or storage.
• Incorrect Installation of the battery into pack or maintenance.
• Use of battery pr pack in an inappropriate environment.Improper, inadequate, or incorrect charge, discharge, or production circuit other than stipulated herein.
• Incorrect use or inappropriate use.
• Insufficient ventilation.
• Ignoring applicable safety warnings and instructions.
• Altering or attempted repairs y unauthorized personnel.
• In case of force majeure (ex: lightning, storm, flood, fire, earthquake, etc.).
• There are no warranties-implied or express-other than those stipulated herein. the manufacturer shall not be liable for any consequential or indirect damages arising or in connection with the product specification, battery, or pack.

Troubleshooting and Maintenance

Maintenance

1. It is recommended that the battery storage time is not more than 6 months.

2. It is required to charge the battery at least once every 6 months. for this charge maintenance make sure the SOC is charged to higher than 70%.
   In the condition of 90% charging. It is recommended that the customers use a low-voltage inverter and fill the battery every half month, otherwise, the SOC will deviate.

3. Every year after installation. The connection of the power connector, grounding point, power cable, and screw are suggested to be checked. Make sure there is no loose, no broken, no corrosion at the connection point. Check the installation environment such as dust, water, insect, etc. Make sure it is suitable for the IP21 battery system.

Troubleshooting
When the red/ green LED on the panel is flashing or normally on, it does not mean that the LV2600 is abnormal, it may be just an alarm or protection. Please check the ‘LED  status indicators’ in chapter 7 for the detailed faulty definition before any trouble-shooting steps. In general, the alarm indication is normal without manual intervention. When the alarm triggering state is removed, LV2600 will automatically return to normal use.

Problem determination based on the following points

1. Whether the green light on the power switch is on;
2. Whether the buzzer in BMS is on;
3. Whether the battery system can be communicated with the inverter;
4. Whether the battery can be output voltage or not.

Preliminary determination steps

1. Battery system cannot work, when DC switches on and POWER is on, the LED doesn’t light up or flash, please consider contacting the local distributor.
2. The LED display of BMS is normal, but it cannot charge and discharge. Observe the display screen of the inverter and there is no SOC. Please check whether the RS485  communication between BMS to the inverter is well connected. If the connection is good, please replace an RS485 communication cable. If the SOC is still not visible on the inverter display screen, please contact the local distributor.
3. After the battery system is powered on, if you can see the alarm information on the LED and inverter display screen at the same time, please contact the local distributor.

The copyright of this manual belongs to FOXESS CO., LTD. Any corporation or individual should not plagiarize, partially or fully copy (including software, etc.), and no reproduction or distribution of it in any form or by any means is permitted. All rights reserved. FOX CO., LTD. Add: Room A203, Building C, No 205, Binhai Six Road, New Airport Industry Area, Longwan District, Wenzhou, Zhejiang Province, China Tel: 0510- 68092998 WWW.FOX-ESS.COM

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