BatterX LFP3500 User manual

TABLE OF CONTENTS

1. Safety instructions.................................................................................................................................................................................................................................1

Precautions..................................................................................................................................................................................................................................................1

Before connecting the device...................................................................................................................................................................................................1

Safety gear.................................................................................................................................................................................................................................................. 2

2. Introduction................................................................................................................................................................................................................................................3

3. Specifications............................................................................................................................................................................................................................................4

4. Device interface..................................................................................................................................................................................................................................... 5

5. Communication hub ..........................................................................................................................................................................................................................9

6. Safe handling..........................................................................................................................................................................................................................................10

Schematic diagram of the solution................................................................................................................................................................................10

Explanation of symbols.............................................................................................................................................................................................................10

7. Troubleshooting....................................................................................................................................................................................................................................11

Problem identification .................................................................................................................................................................................................................11

Actions .......................................................................................................................................................................................................................................................11

8. Emergency situations .....................................................................................................................................................................................................................12

Leaking batteries.............................................................................................................................................................................................................................12

Fire................................................................................................................................................................................................................................................................12

Wet batteries......................................................................................................................................................................................................................................12

Damaged batteries .......................................................................................................................................................................................................................12

batterx.io

V20.1

LFP3500

1. SAFETY INSTRUCTIONS

PRECAUTIONS

•It is important and necessary to read the Lithium Battery Module User's Manual thoroughly before installing

and using them. Neglecting the warnings or safety precautions may result in electric shock, serious injury or

death. Improper handling of the battery modules may also damage them or turning them unusable.

•It is recommended to charge the batteries within 12 hours of complete discharge.

•The battery modules have protection class IP20.

•Battery modules should only be exposed to temperatures of 0-45°C.

•Do not use a battery module that is damaged in any way.

•All battery connections must be disconnected prior to maintenance.

•It is forbidden to connect AC lines directly to the battery module.

•The built-in BMS is designed for 48V systems, do not connect these battery modules in series.

•Contact your supplier within 24 hours if anything unusual occurs.

•Do not use solvents to clean the battery.

•Do not expose the battery module to flames, aggressive chemicals, water or vapours.

•Do not paint the battery module. Neither internal nor external parts.

•Do not connect PV cables directly to the battery module.

•Ensure that the electrical parameters of the battery modules are compatible with the rest of the system.

•Do not open the battery modules.

•Do not use the batteries with faulty or incompatible inverters.

•It is forbidden to use these battery modules with other battery types.

•The warranty does not cover damage caused directly or indirectly by the items listed above.

•It is forbidden to insert any foreign parts into the openings of the battery module.

BEFORE CONNECTING THE DEVICE

•When unpacking, make sure that the product is intact and that all parts have been supplied. If this is not the

case, contact your supplier.

•Make sure that all cables to be connected are disconnected and that the battery modules are switched off.

•All cables must be connected correctly. Do not swap the positive and negative pole cables as this may cause

short circuits on the battery module and/or external devices.

•All battery modules must be grounded with a resistance of less than 1Ω.

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SAFETY GEAR

Use properly insulated tools to prevent accidental electric shock or short circuits.

It is recommended to wear the following protective equipment when handling the battery module:

Insulating gloves Safety Glasses Safety Shoes

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LFP3500

2. INTRODUCTION

The batterX LFP3500 is a lithium iron phosphate battery in the form of a 3.5kWh module. This module acts as a

reliable memory in a variety of applications. They contain their own integrated BMS, which monitors and

manages battery voltages, currents and cell information. The BMS also constantly adjusts all cell voltages to

each other, which further increases the service life of these modules. The LFP3500 is particularly suitable for

applications with high performance, small installation space, limited load capacity and long service life.

Multiple batteries can be connected in parallel to increase capacity and performance.

CHARATERISTICS

•Cathode material is made of LiFePO4 with safety performance and long life.

•The battery management system (BMS) has protection functions such as overcharging, overcurrent and

high/low temperature.

•The system can automatically manage the charge and discharge status, current and voltage of each cell.

•Flexible configuration, multiple battery modules can be connected in parallel to increase capacity and

performance.

•Adopted self-cooling mode quickly reduced the overall system noise.

•The module has a lower self-discharge, up to 6 months without charging, no memory effect, excellent low

charge and low discharge performance.

•The operating temperature ranges from -5°C to 50°C, (charging 0~50°C; discharging -10~50°C) with excellent

discharge performance and lifetime.

•Small size and light weight, standard 19-inch embedded design module is convenient for installation and

maintenance.

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3. SPECIFICATIONS

Basic Parameters

LFP3500

Nominal voltage (VDC)

Nominal power (Wh)

3552

Usable capacity (Wh)

3200

Dimension (mm)

442*420*132

Weight (Kg)

Discharge voltage (VDC)

44.5 ~ 53.5

Charging voltage (VDC)

52.5 ~ 53.5

Recommended charge/discharge current (A)

Max. charge/discharge current (A)

Peak charge/discharge current (A)

100A@15sec

Communication

RS232, RS485, CAN

Configuration (max. in 1 battery group)

8pcs

Operating temperature

0°C~50°C Charging

-5°C~50°C Discharge

Rack temperature

-20°C~60°C

Certification

TÜV / CE / UN38.3

Designed lifetime

10+ Years (25°C/77°F)

Cycle life

Up to 8000 (25°C)

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LFP3500

4. DEVICE INTERFACE

Power switch: to switching on and off the entire battery BMS, no power output. The LED below will light up,

when the switch is turned on.

Operation LED: Green LED lights to indicate that the battery module is running.

Alarm light: Red LED flashes to indicate that the battery is in alarm status. It lights continuously to indicate that

the battery is under protection.

SOC-LED's : 6 green LEDs to indicate the current capacity of the battery (see LED table)

Start button: Keep button pressed for more than 0.5s to start battery, power outputs are now active.

ADD Switch : 4 Dip Switches, Dip1 to set thebaud rate (0 is 115200, 1 is 9600). The lower position is

OFF, means "0". Upper position is ON, means "1". The settings are only active after the battery has

been restarted.

OFF

Power switch

Run LED

Alarm LED

SOC LED

Start button

ADD Switch

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The address of the slave battery is automatically assigned. A master battery can monitor 7 slave batteries

(maximum 8 batteries in each battery group). With multiple battery groups, the master address has to be

configured.

Console communication terminal: (RJ11 port) follows the RS232 protocol (baud rate: 1200), for manufacturers to

debug or maintain.

CAN communication: (RJ45 port) follows the CAN protocol (baud rate: 500K) to read battery information.

R485 Communication: (RJ45 port) follows the RS485 protocol (baud rate: 9600 or 115200) to read battery

information.

Link Port 0, 1 Communication: (RJ45 connector), for communication between multiple parallel batteries of a

single battery group.

DEFINITION OF RJ45 PORT PIN

DEFINITION OF RJ11 PORT PIN

No.

232 Pin

GND

TXD

RXD

GND

Dip2

Dip3

Dip4

Battery group adress

without communication hub

Masterbattery of battery group 1

Masterbattery of battery group 2

No.

RS485 Pin

CAN Pin

GND

CANH

CANL

GND

RS485A

RS485B

Console

CAN

RS485

Link Port 0, 1

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V20.1

LFP3500

Power connection cable: There are two pairs of terminals with the same function. One is for

connection to the system, the other one for parallel connection in-between battery groups. For

each individual module, each terminal can charge and discharge the battery module.

To remove the power connector, press and hold the lock button.

Terminal for dry contacts: 1 input and 3 potential-free outputs.

IN+

GND

NO1

COM1

NO2

COM2

NO3

COM3

Input

Wake up master battery, use 5-12VDC input, the circuit has a 10kΩ

resistance.

Output 1

Discharge on

off

Discharge off

Output 2

Charge on

off

Charge off

Output 3

System error

off

System normal

•Run LED: green, lights constantly when charging, flashing when discharging.

•ALARM LED: red, flashes on alarm and lights for long time in case of equipment failure or protection status.

•Battery capacity indicator: 6 green LED's, each lamp corresponds to 16.6% capacity.

•Standby: Only the power switch LED is on, the run LED lights up every 3,7s for 0,3s.

LED-STATUS

State

RUN

ALR

Power off

Power on

●

Standby

Charge

●

Display SOC; highest LED flash on: 0.5s / off: 0.5s

Discharging

Display SOC

Alarm

ALR: ; Other LEDs are as described above.

System

error/protection

●

●/●

Flash, on: 0.3s ; off: 3.7s

Flash, on:0.5s ; off: 1.5s

Power Terminals

Dry contacts

LED Status Indicators

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V20.1

LFP3500

BMS FUNKTION

Protection and Alarm

Management and Monitoring

Charging/discharging end

Cell balance

Charge overvoltage

Intelligent charging model

Discharge undervoltage

Charge/discharge current limit

Charging/Discharging Overcurrent

Capacity retention calculate

High/low temperature (cell/BMS)

Administrator Monitor

Short Circuit

Operation Record

Reverse polarity of the power cables

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