SunSynk L051100-A User manual

Power Lite Lithium Battery System
L051100-A Product Manual
Global Tech China Ltd, 3 Floor, Wai Yip Industrial Building.171 Wai Yip Street,
Kwun Tong, Kowloon, Hong Kong. Tel: [phone] Fax: [phone]
4816
www.sunsynk.com / sale[email protected] / www.globaltechhk.com
Version 2.0 (24/07/2020)

Index
1. INTRODUCTION ...................................................................................................................................................... 3
1.1. MAIN FEATURES ............................................................................................................................................................ 3
1.2. SAFETY PRECAUTIONS ..................................................................................................................................................... 3
1.3. PRECAUTIONS FOR USE .................................................................................................................................................... 7
2. SPECIFICATION AND FUNCTIONS ............................................................................................................................... 8
2.1. SYSTEM INTRODUCTION .................................................................................................................................................... 8
2.2. DIMENSIONS .................................................................................................................................................................. 9
2.3. SPECIFICATIONS .............................................................................................................................................................. 9
2.4. INSTALLING INSTRUCTIONS .............................................................................................................................................. 10
2.4.1. DEFINITION OF VOLTAGE SAMPLING CONNECTOR ................................................................................................................... 10
2.4.2. DEFINITION OF TEMP. SAMPLING CONNECTOR ..................................................................................................................11
2.4.3. FRONT VIEW ........................................................................................................................................................................ 11
2.4.4 PORT RS485 AND RS232 ....................................................................................................................................................... 12
3. INSTALLATION ......................................................................................................................................................... 13
3.1. DC CABLE REQUIREMENTS .............................................................................................................................................. 13
3.2. DC CABLE .................................................................................................................................................................... 13
3.2.1. MATERIAL LIST ..................................................................................................................................................................... 13
3.2.2. STEPS ................................................................................................................................................................................ 13
3.3. DC CABLE CONNECTION .................................................................................................................................................. 14
3.3.1. SINGLE UNIT ........................................................................................................................................................................ 14
3.3.2. MULTI-UNITS IN PARALLEL (4 SETS AS AN EXAMPLE) .................................................................................................................... 15
3.3.3. METHOD TO SET UP MASTER PACK AND SLAVE PACK ................................................................................................................... 16
4. POWER ON AND OFF ............................................................................................................................................... 17
4.1. INSTRUCTION ..................................................................................................................................................................
17 4.1.1 SYSTEM POWER ON ...................................................................................................................................................
17 4.1.2. SYSTEM POWER OFF................................................................................................................................................. 17
4.1.3. SLEEP AND WAKE UP FUNCTION ............................................................................................................................................... 17
4.1.4. BUZZER FUNCTION ................................................................................................................................................................ 17
4.1.5. SYSTEM STATUS INSTRUCTION ................................................................................................................................................. 17
4.1.6. LED TWINKLE STATUS ........................................................................................................................................................... 18
4.1.7. SOC INDICATOR .................................................................................................................................................................... 18
5. TRANSPORTATION AND STORAGE ........................................................................................................................... 19
5.1. TRANSPORTATION ........................................................................................................................................................ 19
5.2. STORAGE .................................................................................................................................................................... 19
6. DISCLAIMER ............................................................................................................................................................. 19

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1. Introduction
Thank you for choosing Sunsynk’s energy storage system.
The energy storage module comprises of lithium ion rechargeable batteries with 5.12 kWh capacity, and
the controller enables a central of multiple modules.
This manual provides information regarding safety precautions to prevent possible accidents and how
to use the product.
Please read this manual carefully before use for safety and keep this manual handy for reference.
1.1. Main Features
Some main features of this product are:
 Long Life Span
The battery can be expected to remain serviceable for more than 10 years, considering that it is charged
and discharged once in a day at room temperature (25 deg. C).
 Long Life Span
Olivine-type lithium iron phosphate batteries with excellent thermal stability and storage characteristics
are used in this product. The module also incorporates a self-monitoring function for the detection of any
abnormalities in energy storage.
 Compact Design
The height is nicely designed in 3U, in favor of standard industrial applications.
 High Scalability
Multiple energy storage modules can be connected in parallel, and the capacity can be customized
according to the intended use.
1.2. Safety Precautions
Sunsynk's products are designed with full consideration of safety. However, all electrical appliances can
be dangerous if used inappropriately; it can cause a fire or electric shock that leads to severe injury or
death. For your protection, please read these safety precautions thoroughly.
Definitions of Symbols:
Below are symbols used in this manual and the unit.
Please read through the following definitions before reading the manual.

Warning
If you ignore these instructions, it can lead to a fire or electric shock
causing serious injury or death.
Caution If you ignore these instructions, it can lead to electric shock or other
accidents causing injury or harm to nearby products.

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 Instruction
Use designated cable. A non-designated cable use can cause electric shock. Be sure to use the cable
designated in this manual.
 Prohibited
Do not damage cables. If you damage a cable, it can cause a fire or electric shock.
1. Do not work over or damage a cable.
2. Do not place heavy objects on a cable or pull the cable.
3. Do not place a heater near the cable, which may result in the cable overheating.
4. Do not tuck down a cable when installing in a rack.
5. When you unplug a communication cable, be sure to hold the plug and pull it.
 Instruction
Connect a power cable and communication cable properly.
1. If you connect a power cable improperly, contact resistance will increase and it may damage the parts
or cause a fire.
2. Insert the connector of the communication cable all the way in. If it is connected improperly, the system
may be deactivated.
 Prohibited
Do not install in a closed area. If the module/controller is installed in a closed area with no air-conditioning,
heat may build up inside the set and cause a fire.
 Prohibited
Do not place the set in direct sunlight or near a heater. Doing so can cause deformation, a breakdown,
or a fire. Pay extra attention when you place the set near windows.
 Prohibited
Do not install the set where excessive oil smoke, steam, moisture or dust is contained in the air. If the set
is installed in such a place, it may cause a fire or electric shock.
 Instruction
1. Wear insulating gloves and protection glasses during installation and connection
If you do not follow the instructions below, it can lead to a f ire or electric shock causing serious
injury or death.
Warning

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2. Wear insulating gloves and protection glasses during installation and connection of the set to prevent
electric shock or other injuries.
 No Wet
1. Do not allow water and/or foreign objects inside the module
2. Water or foreign objects inside the module can cause a fire or electric shock.
3. Should this occur, however, turn off the “POWER ON/OFF” switch on the controller to shut down, and
remove the power connector from the POWER CONNECTOR terminal of the module.
 Do not disassemble
Do not open the set unnecessarily. Opening and modifying the set can cause a fire or electric shock.
 Prohibited
Do not cover the vent. If the vent is covered, heat may build up inside the set and cause a fire.
1. Do not put the set in a poorly ventilated and narrow space.
2. Remove any dust buildup in the vent.
3. Do not place the set upside down or sideways.
4. Do not place on a shag carpet or bed.
5. Do not cover the vent with a cloth, etc.
 Instruction
Install in a stable place.
1. If you install the set in an unstable place, such as an unstable rack, it may fall and cause injury.
2. Do not install upside down or sideways. The set may drop and cause injury.
 Instruction
Use the designated packaging materials for transportation. If you do not use the designated packaging
materials, the packaging material may be damaged by vibration during transportation and it may cause
injury.
 Instruction
Install based on the designated way of installation. If you do not follow the designated way of installation,
the set may drop due to the strength poverty and can cause injury.
 Instruction
If you ignore any of the following instructions, it can cause injury or damage to nearby
products.
Caution

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Fix a rack to the floor. If a rack falls by the weight of the set, it may cause serious injury or death.
 No Wet
Do not touch with wet hands If you touch the set with wet hands, it may cause electric shock. 
Instruction
Install other equipment or accessories properly. If you inadequately install other equipment or accessories
sold separately, they may fall and cause injury. When you install any of the following accessories, install
it properly based on this manual.
Bracket
Power connector
 Instruction
Set up cables properly If your foot is caught by a cable, the set may fall and cause injury. Connect and
install cables carefully.
 Instruction
Power off at a malfunction In case any malfunction happens, please turn off the POWER ON/OFF switch
in order to shut down, and remove the power connector from the POWER CONNECTOR terminal of the
module.
 Prohibited
Do not put anything, stand or sit on the set If you put anything on the set, it may fall and cause injury.
Also, if it is used as a stool, for example, it may topple and cause injury.
 Instruction
Follow related laws or ordinances for disposal. When you dispose of this product, do not dispose as
general or household waste.
 Instruction
Disposal with specified method Contact technical vendor when you discard. Do not disassemble, destroy,
or disposal in the fire.
If liquid is leaking from the module, observe the following measures.
 Do not allow the liquid to come in contact with skin or clothing.
 If the liquid comes in contact with skin or clothing, wash thoroughly with plenty of water.
Danger

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 If the liquid gets into the eyes or mouth, flush immediately with clean water, and immediately seek
medical treatment.
 Contact customer service.
1.3. Precautions for Use
 In the case of a failure, or any of the abnormalities shown below, turn off the set and contact Sunsynk
customer services.
1. Abnormal sound, smell or smoke.
2. Water or particles inside the product.
3. The product is dropped, or the cabinet is damaged.
 Charge and discharge the product according to the control signals of the controller. Do not hammer
a nail or punch a hole in the product.
 Replace the module with a new one if discharge time at room temperature is noticeably short, even
from fully charged.
DO NOT:
 Disassemble.
 Modify the product (Modification may destroy the protection function inside, or cause abnormal
charge/ discharge, heat generation, gas eruption, or fire.).
 Touch the rear output terminal except for installation.
 Throw the product into fire or heat, or otherwise expose the set to heat or naked flame.  Submerge
the product in liquid or allow it to become wet.
 Apply strong shock, crush, or drop.
 Use for medical purposes.
 Place any foreign objects inside.
 Connect any devices that exceed the operating voltage and current range.
 Do not unplug the power connector from the POWER CONNECTOR terminal while power is turned
on.

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2. Specification and Functions
2.1. System Introduction
L051100-A Energy Storage System is consisted of 2 sets of M025100-A modules manufactured by
Sunsynk. In each M025100-A, there are 8 pcs of 100 Ah LFP cell originated from CATL. The overall
system also provides standard communication port, i.e. CAN and RS485, to monitor the working status
and communicate with upper machine as well as the Power Conversion System (PCS) in front. The
system schematic drawing is presented in Figure 1.

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2.2. Dimensions
L051100-A dimensions are presented in Figure 2. It is well designed for 19 inch cabinet.
Figure 2 - L051100-A dimensions
2.3. Specifications
Specifications of L051100-A
Cell Type LiFePO4 (LFP)
Rated Voltage 51.2 V
Rated Capacity 100Ah
Rated Energy 5.12kwh
Packing 1P16S
Working Voltage Range 44.8～57.6V
Standard Charging Current 50A
Max. Continuous Charging Current 50A
Standard Discharging Current 50A
Max. Continuous Discharging Current 100A（1C， 25 ±2°C）

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Max. Pulse Discharging Current 200A（2C, 30S， 25°C ±2°C SOC≥40%）
Standard Charging Method 0.5C CC to 57.6V， CV at 57.6V till current is 0.05C
Working Temp. Charging: 0 ～50 Discharging: -20°C～55°C
Working ROH 20%～80%
Storage Temp. -20~50°C

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Self-discharging rate ≤5%（25
， 50% SoC）
SoC @ end of product line 40%
Insulation Resistance >100MΩ
Voltage Difference in each module ≤20mV
Inner Resistance of single Cell 0.34±0.05mΩ（fresh cell 30～40% SoC)
Weight Approx. 48kg
Dimension 440mm*530mm*132mm（not include connector， MSD
and other parts）
2.4. Installing Instructions
Some instructions for installing the equipment must be followed.
2.4.1. Definition of Voltage Sampling Connector
PIN Wire No. Signal Wire size (mm²） Remarks
1 B0 Signal 0.3 Cell #1-
2 B2+ Signal 0.3 Cell #2+
3 B4+ Signal 0.3 Cell #4+
4 B6+ Signal 0.3 Cell #6+
5 B8+ Signal 0.3 Cell #8+
6 B10+ Signal 0.3 Cell #10+
7 B12+ Signal 0.3 Cell #12+
8 B14+ Signal 0.3 Cell #14+
9 B16+ Signal 0.3 Cell #16+
10 NC NC NC NC
11 B1+ Signal 0.3 Cell #1+
12 B3+ Signal 0.3 Cell #3+
13 B5+ Signal 0.3 Cell #5+
14 B7+ Signal 0.3 Cell #7+
15 B9+ Signal 0.3 Cell #9+
16 B11+ Signal 0.3 Cell #11+
17 B13+ Signal 0.3 Cell #13+
18 B15+ Signal 0.3 Cell #15+

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2.4.2. Definition of Temp. Sampling Connector
PIN Wire No. Signal Wire size (mm²) Remarks
1 T1+ Signal 0.3 Temp. #1+
2 T2+ Signal 0.3 Temp. #2+
3 T3+ Signal 0.3 Temp. #3+
4 T4+ Signal 0.3 Temp. #4+
5 T1- Signal 0.3 Temp. #1-
6 T2- Signal 0.3 Temp. #2-
7 T3- Signal 0.3 Temp. #3-
8 T4- Signal 0.3 Temp. #4-
2.4.3. Front View
Figure 3 - Front view of the L051100-A
Item Name Model Remarks
1 SOC LED x4
2 Alarm LED
3 RUN LED
4 Dialer
5 Communication port RJ11 RS232 To upper machine
6 Communication port *2 RJ45 CAN To PCS RS485 Internal Connection
7 Reset Waken system from malfunction status
8 Dry Contact
9 Power On/Off Switch
10 Port Negative x2 PSR6XAB Black 5.7， 25mm2

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11 Port Positive x2 PSR6XBB Orange 5.7， 25mm2
12 GND M6 Yellow-Green， 10AWG
2.4.4 Port RS485 and RS232
Figure 4 - CAN/RS485 and RS232 connections
Description
CAN
Pin 1： CAN-H
Pin 5： CAN-L
Pin 2, 3, 4, 6, 7： NC
Pin 8： GND
RS485
Pin 1, 4, 5： NC
Pin 2, 7： RS485-A
Pin 3, 6： RS485-B
Pin 8： GND
RS232
Pin 1, 2, 6： NC
Pin 3： BMS transmit; Computer receiver
Pin 4： BMS receiver; Computer transmit
Pin 5： GND

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3. Installation
3.1. DC Cable Requirements
Size Outer Diameter Max. Voltage Max. Current
21-33 mm² 10-12 mm 1000 V 120 A
3.2. DC Cable
3.2.1 Material List
Plug Isolation Cap Tail-hood
3.2.2 Steps
DC cable must be a multicore wire.
C a ution

Turn off system before doing electrical connection

Ensure all the cables are in electrical safe condition
Danger

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1. Put wire through isolation cap and Tail- Hood.
2. Swipe outer isolation layer of DC cable.
3. The is used for the positive, and the negative for the
black contact. The end of the cable is bunched at the
terminal using a wire clamp.
4. Tighten the isolation cap and plug contact.
5. Put the positive and negative plug on to the system and tighten it.
6. Use isolation cap for unused DC plug.
3.3. DC Cable Connection
3.3.1 Single Unit
Figure 5 - Single unit connection

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3.3.2 Multi-Units in Parallel (4 sets as an example)
Figure 6 - Multi-Units Connection

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Master Pack and Slave Pack L051100-A can be used as single unit as well as multi-units (in
parallel) mode. The customer must inform supplier if multi-units mode is required. The Master
Pack can be used individually, but Slave Pack cannot be used individually.
3.3.3. Method to set up Master Pack and Slave Pack
Figure 7 - Dial diagram
Master/slave machine dial code diagram:

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4. Power ON and OFF
4.1. Instruction
Please double check the Precautions for use in section 1.3.
4.1.1 System Power ON
 Installation (including DC cable, communication wire connection and dialer switch) is properly down.
 Press Power Switch button, green LED should be twinkling and then turn into function mode. (system
status can be red from LED signal, as shown below)

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4.1.2. System Power OFF
Attention: It must be confirmed that the system is off before taking off DC cables. Press
Power Switch button
Green LED should be twinkling and then turn into stop mode
4.1.3. Sleep and wake up function
Number Sleep Condition Wake up Condition Mark
1 Forced sleep by upper computer Reset button
2 Forced sleep by soft switch Soft switch,
Only those equipped with
soft switch can pass the call
Wake up
3
Total Voltage is lower than 48V
or monomer is lower than 2.8V,
and continuous No charge and
discharge current for 4 hours, no
communication goes to sleep
Reset button,
Soft switch,
Communicatio
n, Charging
Only those equipped with
soft switch can pass the call
Wake up
4.1.4. Buzzer function
 0.25s per 1s in case of fault
 0.25s per 2S during protection
4.1.5. System Status Instruction
There are 6 LED indicator, 4 green LED gives status of SoC, 1 red Alarm LED and 1 green Running
Status LED (indicating charging, discharging etc.)