sunways STE-BS Li-HV High Voltage Li-ion Battery User Manual

User Manual
STE-BS Li-HV System
SUNWAYS TECHNOLOGIES CO.,LTD.

STE-BS Li-HV High Voltage Li-ion Battery

Attention
The products, services or features purchased are subject to the commercial contracts and terms of Sunways Technologies Co., Ltd. All or part of the products, services or features described in this document may not be within purchased. Unless otherwise
agreed in the contract, the Company shall not make any express or implied declaration or guarantee of the contents of this document.
Due to product version upgrades or other reasons, the contents of this document will be updated periodically. Unless otherwise agreed, this document serves only as a guide to use, and all statements, information and recommendations in this document
do not constitute any express or implied guarantee.
Before transporting, storing, installing, operating, using, and/or maintaining the equipment, read this document, strictly follow the instructions provided herein, and follow all the safety instructions on the equipment and in this document. The Danger, Warning, Caution, and Notice statements described in this document do not cover all the safety precautions. You also need to comply with relevant international, national, or regional standards and industry practices. The Company shall not be liable for any consequences that may arise due to violations of safety requirements or safety standards concerning the design, production, and usage of the equipment.
The equipment should be used in an environment that meets the design specifications. Otherwise, the equipment may be faulty, malfunctioning, or damaged, which is not covered under the warranty. The Company shall not be liable for any property loss, personal injury, or even death caused thereby.

Preface

※ 1.1 Overview
This manual is an integral part of Sunways STE-BS series LFP battery system (hereinafter referred to as the battery or STE-BS battery). It mainly introduces the assembly, installation, electrical connection, debugging, maintenance and troubleshooting of
the products. Before installing and using battery, please read this manual carefully, understand the safety information and be familiar with the functions and characteristics of hybrid battery.
※ 1.2 Target Groups
This manual is applicable to the electrical installers with professional qualifications and end-users. If there are any problems in the installation process, please call Sunways service telephone at +86 400-9922-958 or email Sunways at service@sunways-tech.com for consultation.

Safety Instructions

※ 2.1 Safety Notes
Before installation, please read this manual and warning labels on battery carefully and follow the instructions in this manual strictly.
※ 2.2 Important Safety Matters
SAVE THESE IMPORTANT SAFETY INSTRUCTIONS.
STE-BS stackable Li-HV system installation and repair instructions assume knowledge of high voltage electricity and should only be performed by Sunways certified installers.
Sunways assumes no liability for injury or property damage due to repairs attempted by unqualified individuals or a failure to properly follow these instructions. These warnings and cautions must be followed when using our product.

b

Warning| Read this entire document before installing or using STE-BS stackable Li-HV system.
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 STE-BS stackable Li-HV system, potentially rendering it inoperable.
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Warning| A battery can present a risk of electrical shock, fire, or explosion from vented gases.
Observe proper precautions.
Warning| STE-BS stackable Li-HV storage system installation must be carried out only by Sunways Certified Installers, who have been trained in dealing with high voltage electricity.
Warning| The product is heavy and challenging to lift.
Warning| Use STE-BS Battery only as directed.
Warning| Do not use STE-BS Battery if it is defective, appears cracked, broken, or otherwise damaged, or fails to operate.
Warning| Do not use STE-BS Battery if it is defective, appears cracked, broken, or otherwise damaged, or fails to operate.
Warning| Do not attempt to open, disassemble, repair, tamper with, or modify STE-BS Battery.
STE-BS Battery is not user serviceable. LFP Cells in STE-BS Battery are not replaceable.
Contact the STE-BS Authorized Reseller who sold the STE-BS Battery for any repairs.
Warning| Do not connect STE-BS Battery to alternating current carrying conductors. STE-BS storage system including battery and battery must be wired to either a battery or a DC combiner panel that is then wired to an inverter. No other wiring configuration may be used.
Warning| STE-BS Battery contains components, such as switches and relays, that can produce arcs or sparks.
Warning| To protect STE-BS Battery and its components from damage when transporting, handle with care. Do not impact, pull, drag, or step on STE-BS Battery. Do not subject STE-BS Battery to any strong force. To prevent damage, leave STE-BS Battery in its shipping packaging until it is ready to be installed.
Warning| Do not insert foreign objects into any part of STE-BS Battery.
Warning| Do not expose STE-BS Battery or its components to direct flame.
Warning| Do not install STE-BS Battery near heating equipment.
Warning| Do not immerse STE-BS Battery or its components in water or other fluids.
Caution| Do not use cleaning solvents to clean STE-BS Battery, or expose STE- BS Battery to flammable or harsh chemicals or vapors.
Caution| Do not use fluids, parts, or accessories other than those specified in this manual, including use of non-genuine STE-BS parts or accessories, or parts or accessories not purchased directly from STE-BS or a STE-BS -certified party.
Caution| Do not place STE-BS Battery in a storage condition for more than one (1) month, or permit the electrical feed on the STE-BS Battery to be severed for more than one (1) month, without placing STE-BS Battery into a storage condition in accordance with STEBS’s storage specifications.
Caution| Do not paint any part of STE-BS Battery, including any internal or external components such as the exterior shell or casing.
Caution| Do not connect STE-BS Battery directly to photovoltaic (PV) solar wiring.
Caution| When installing STE-BS Battery in a garage or near vehicles, keep it out of the driving path. If possible, install the STE-BS Battery on a side wall and/or above the height of vehicle bumpers.

※ 2.3 Environmental Conditions

Warning| Install STE-BS Battery at a height that prevents damage from flooding.
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Warning| Operating or storing STE-BS Battery in temperatures outside its specified range might cause damage to STE-BS Battery.
Warning| Do not expose the STE-BS Battery to ambient temperatures above 45℃ (113℉ ) or below 0℃ (32℉ ).
Caution| Ensure that no water sources are above or near STE-BS Battery, including downspouts, sprinklers, or faucets.

※ 2.4 Statement
Sunways Technologies Co.,Ltd. has the right not to undertake quality assurance in any of the following circumstances:

1. Damages caused by improper transportation.
2. Damages caused by incorrect storage, installation or use.
3. Damages caused by installation and use of equipment by non-professionals or untrained personnel.
4. Damages caused by failure to comply with the instructions and safety warnings in this document.
5. Damages of running in an environment that does not meet the requirements stated in this document.
6. Damages caused by operation beyond the parameters specified in applicable technical specifications.
7. Damages caused by unauthorized disassembly, alteration of products or modification of software codes.
8. Damages caused by abnormal natural environment (force majeure, such as lightning, earthquake, fire, storm, etc.).
9. Any damages caused by the process of installation and operation which don’t follow the local standards and regulations.
10. Products beyond the warranty period.

※ 2.5 Symbol on the Battery Label
Sunways Technologies Co.,Ltd. has the right not to undertake quality assurance in any of the following circumstances:

1. Damages caused by improper transportation.
2. Damages caused by incorrect storage, installation or use.

※ 2.6 Symbol on the Packing Box

Product Description

※ 3.1 Basic Features
3.1.1 Function
The STE-BS series is a stackable mounted energy storage battery.
3.1.2 Models
The STE-BS series battery includes 9 models which are listed below: STE-BS5, STE-BS7, STE-BS10, STE-BS12, STE-BS15, STE-BS17, STE-BS20, STE-BS23, STE-BS25.

Battery Introduction

※ 4.1 Appearance Introduction
4.1.1 Control Module

※ 4.2 Packing List
The package of the battery includes the following accessories. Please check whether the accessories in the packing box are complete when receiving the goods. See Figure 3-7 fthe packing list.

Installation

※ 5.1 Location

1. The area is completely water proof. The floor is flat and level.
2. There are no flammable or explosive materials.
3. The ambient temperature is within the range from 0 to 50.
4. The temperature and humidity are maintained at a constant level. There is minimal dust and dirt in the area.
5. The distance from heat source is more than 2 meters.
6. The distance from air outlet of whole system is more than 0.5 meters. Do not cover or wrap the battery case or cabinet.
7. Do not place at children or pet touchable area. The installation area shall avoid direct sunlight.
8. There are no mandatory ventilation requirements for battery module, but please avoid installation in confined area (minimum 300mm to top/left/right/front).
9. The aeration shall avoid of high salinity, humidity, or temperature.

※ 5.2 Mounting
5.2.1 Install the Base

1. Check the installation environment to ensure ground level.
2. Place the base on the ground, and make sure it is level and stable.
3. Distance between base and wall is 20mm~120mm.

5.2.2 Install the Module

1. After the base is installed, remove the protective film of the terminals, and the remaining battery module and control module are then placed in turn.
2. Install the fixings on both sides of the control module.
3. Use the fixings as the template to mark the position of 4 holes on the wall.
4. Remove the control module.
5. Use an electrical driller with 10mm diameter bit to drill 4 holes in the wall with 80mm depth. Warning Before drilling, make sure to avoid any buried water tube and electric wires in the wall.
6. Insert the expansion tubes into the holes.
7. Place the control module on battery module.
8. Tighten modules with fixed bolt on the left and right side.
9. Insert the expansion screws into the holes, then fix the fixings onto the wall with expansion screws by using a cross screwdriver.
10. Turn the adjusting screw to fix the battery onto the wall by using a wrench.

5.2.3 Ground Connection

Attention| Proper grounding is good for resisting surge voltage shock and improving EMI performance. Battery must be well-grounded.
For a system with only one battery, the PE cable needs to be grounded.
For a multi-battery system, all batteries PE wires need to be connected to the same grounding copper bar to ensure equipotential bonding.
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Ground terminal connection steps:

1. The external grounding terminal is located in the right side of the control module.
2. Fix the grounding terminal to the PE wire with a proper tool and lock the grounding terminal to the grounding hole in the right side of the control module.
3. The cross-sectional area of the external grounding cable is 6mm .2

※ 5.3 Electrical Connection

Warning| A high voltage in the conductive part of the battery may cause an electric shock. When installing the battery, make sure that the DC sides of the battery is completely deenergized.
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Warning| Do not ground the positive or negative pole of the battery output, otherwise it will cause serious damage to the battery.
Warning| Static may cause damage to the electronic components of the battery. Anti- static measures should be taken during installation and maintenance.
Attention| Do not use other brands or other types of terminals other than the terminals in the accessory package. Sunways has the right to refuse to held liable of all damages caused by the mixed-use of terminals.
Attention| Moisture and dust can damage the battery, ensure the cable gland is securely tightened during installation. The warranty claim will be invalidated if the battery is damaged as a result of using poorly connected cable connector.

5.3.1 Cables Connection
After mechanical installation is finished, here are positive power line, negative power communication cable and earth cable between inverter and control module need connected.
The picture on this page shows the cables connection. Please follow the instruction andsure all the cables are connected correctly.

5.3.2 Battery Power Connector Assembly Procedures

1. Select an appropriate DC cable.
   Cable type| Conductor cross-sectional area (mm²)
   ---|---
   AWG 10| Outside diameter (mm²)| Conductor core section (mm²)
   5.5-8.0| 4.0-6.0

2. Peel off the DC cable insulation sleeve for 15 mm, as shown in Figure 5-16:

3. Use a flathead screwdriver to open the clamping bracket in the connector, as shown in Figure 5-17:

4. Insert the stripped DC cable to the battery connector deep enough and toggle the clamping bracket to make sure it tightly locked with the stripped cable, as shown in Figure 5-18:

5. Push the battery connector to the thread joint, and use an open wrench to lock the connector in a torsion of 2Nm tightly, as shown in Figure 5-19: Warning	① Before making the battery connector, please make sure the polarity of the cable is correct.

   ② Use a multimeter to measure the voltage of the battery pack and make sure the voltage is within the inverter limitation and the polarity is correct.

6. Insert the positive and negative connector into the inverter battery terminals respectively, and a “click” sound represents the assembly in place, as shown in Figure 5-20:

5.3.3 Communication Cable Connection
One side of the communication cable used to connect the inverter and control module port is preinstalled on the inverter before leaving the factory, insert the other side to the “Inverter.COM” port in the control module when installing it.
Communication interface and definition:

**| Item| [ Service.COM](http://Service.COM)| [ Inverter.COM**](http://Inverter.COM)
---|---|---|---
1| RS485_A| /
2| RS485_B| /
3| /| /
4| /| CAN_H
5| /| CAN_L
6| RS232_RX| /
7| RS232_TX| /
8| RS232_GND| /

System Start and Stop

※ 6.1 Start System
When starting the system, follow these steps:

1. Turn on the DC Switch in the bottom of inverter.
2. Turn on the DC Switch on the control module.
3. Hold down the POWER button for 5 seconds until the power button lights up.
4. Observe the status indicator，green light flashing indicates the normal output.
5. Switch on the AC breaker first.b
6. The inverter will start to check the DC and AC input parameters and self-check, and if everything is normal, the inverter will start to work according to the work mode which you set on the App. The inverter display and indicators will show relevant parameters and status.

※ 6.2 Stop System
When turning off the system, please follow the steps below:

1. Shut off the inverter through the APP or the button on the display first.
2. Disconnect the breakers on the grid and load side.
3. Turn off the DC Switch on the control module.
4. Wait 30 seconds and then turn the inverter DC switch to the “OFF”. At this time, there is remaining power in the inverter capacitor. Wait for 5 minutes until the inverter is completely de-energized before operating.
5. Disconnect the AC and DC cables.

Troubleshooting

※ 7.1 Requirements

Danger| Do not load or unload batteries in a rude way. Otherwise, the batteries may be shortcircuited or damaged (such as leakage and crack), catch fire, or explode.
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Warning| Move batteries in the required direction. They must not be placed upside down or tilted, and must be protected against falling down, mechanical impact, rains, snows, and falling into water during transportation.
Batteries must be transported separately. Do not transport a cabinet with batteries installed. If the cabinet needs to be transported or moved, remove the batteries first.
Attention| Restart the battery only after removing the fault that impairs safety performance.
Never arbitrarily replace any internal components.
For any maintenance support, please contact Sunways. Otherwise, Sunways shall not be held liable for any damage caused.
Note| Servicing of the device in accordance with the manual should never be undertaken in the absence of proper tools, test equipment or the latest revision of the manual which has been clearly and thoroughly understood

STE-BS battery passes the certificate of the UN38.3 (UN38.3: section 38.3 of the sixth Revised Edition of the Recommendations on the Transport of Dangerous Goods, Manual of Tests and Criteria). The batteries can be delivered to the site directly and transported by land and water. When battery need to be transported, please follow bellow requirements strictly.

1.  Choose sea or roads in good conditions for transportation as transportation by railway or air is not supported. Avoid tilt or jolt during transportation.
2.  Maritime transport must comply with the International Maritime Dangerous Goods Code (IMDG Code).
3. Road transport must comply with the Agreement Concerning the International Carriage of Dangerous Goods by Road (ADR) or JT/T T617.
4. Before transportation, check that the battery package is intact and that there is no abnormal odor, leakage, smoke, or sign of burning. Otherwise, the batteries cannot be transported.
5. The packing case must be secured for transportation. Handle the case with care during loading, unloading, and transportation with moisture-proof measures in place.
6. Exercise caution when moving batteries to prevent bumping and ensure personal safety.
7. Unless otherwise specified, dangerous goods cannot be mixed with goods containing food, medicine, animal feed, or their additives in the same vehicle or container.
8. Unless otherwise specified, when dangerous goods packages are loaded in the same vehicle or container as ordinary goods, they should be separated in either of the following ways:
   – Use a spacer that is as high as the packages.
   – Keep a distance of at least 0.8 m around.

Battery Storage

※ 8.1 Storage Requirements
The STE-BS battery storage environment requirements are as follows. :

• Ambient temperature: 18–25° C
• Relative humidity: less than 40%
• Dry, clean, and well-ventilated
• Away from corrosive organic solvents and gases
• Away from direct sunlight
• At least 2 meters away from heat sources

1.  The batteries in storage must be disconnected from external devices. The indicators (if any) on the batteries must be off.
2. Ensure that the storage duration is updated after every charge.
3. The warehouse keeper should collect battery storage information every month and periodically report the battery inventory information. The batteries that have been stored overdue should be recharged in a timely manner.
4. Do not unpack batteries. Batteries should be recharged during storage by professionals as required, and they should be put back to their packaging after recharge.
5. If batteries have been stored overdue, promptly report the event to the person in charge.
6. Ensure that batteries are delivered based on the “first in, first out” rule.
7. Handle batteries with caution to avoid damage.
8. Inappropriate storage will cause the battery performance and service life may be affected. Sunways Technologies Co.,Ltd. has the right not to undertake quality assurance in irregular storage.

Warming| Ensure that batteries are stored indoors. Install batteries in a dry, clean, and ventilated environment that is free from sources of strong infrared or other radiations, organic solvents, corrosive gases, and conductive metal dust. Do not expose batteries to sunlight or water and keep them far away from sources of heat and ignition.
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Warming| Risk of battery damage or personal injury due to incorrect service!Dispose of bulged, deformed, damaged, or leaking batteries irrespective of how long they have been stored.
Warming| Place batteries correctly according to the signs on the packing case during storage. Do not place batteries upside down, lay them on one side, or tilt them. Stack batteries in accordance with the stacking requirements on the packing cases.
Caution| Store batteries in a separate place. Do not store batteries together with other devices. Do not stack batteries too high. The site must be equipped with qualified fire suppression facilities, such as firefighting sands and fire extinguishers.
Caution| Batteries should be used soon after being deployed onsite. Batteries that have been stored for an extended period should be recharged periodically. Otherwise, they may be damaged.
Caution| Only trained and qualified personnel are allowed to recharge batteries. Wear insulated gloves and use dedicated insulated tools during the operation.
Caution| Observe onsite during recharge and handle any exceptions in a timely manner.
Caution| If a battery experiences an abnormality such as bulging or smoking during recharge, stop charging immediately and dispose of it.

※ 8.2 Storage Duration Overdue and Recharge
Do not store batteries for extended periods. Otherwise, the battery performance and service life may be affected.
· The total storage and transportation time of the battery packs cannot exceed six months (starting from manufacture date or the latest charge date).
If it exceeds six months, discharge the battery to 0% SOC and then charge to 30% SOC.
If it exceeds twelve months, discharge the battery to 0% SOC, then charge to 100% SOC and finally discharge to 30% SOC.
· Dispose of deformed, damaged, or leaking batteries directly irrespective of how long they have been stored. in irregular storage.

Troubleshooting

※ 9.1 Maintenance

safety performance.
Never arbitrarily replace any internal components.
For any maintenance support, please contact Sunways. Otherwise, Sunways shall not be held liable for any damage caused.
Note| Servicing of the device in accordance with the manual should never be undertaken in the absence of proper tools, test equipment or the latest revision of the manual which has been clearly and thoroughly understood

Maintenance of electrical components:

Item| Project| Checkpoint| Methods| Repair Condition| Repair Solution
---|---|---|---|---|---
1| Electrical| Check whether the voltage output is normal.| Multi-mete| The battery voltage exceeds the preset range| Contact the dealer or manufacturer.
2| Failure to check| Check whether the light is normal.| Visual inspection| Warning
3| Cable| Insulation, terminal| Visual inspection| Insulation crack, aging, the terminal is peeling or corroded.| Replace the cable, eplace the erminal boar
---|---|---|---|---|---

Battery Maintenance:

1

| Every month| Working environment| Keep away from heat sources and direct sunlight.
1| Visual inspection| If there is damage, leakage or deformation, isolate the faulty battery pack, take photos and replace the battery.
2| Every quarter| Visual inspection| Clean appearance with cotton cloth. Be careful when cleaning.

2

| Connection status| Check each terminal for loose bolts and tighten Check the cagain. ature. able temper Collect discharge data at least once every six
3| Half a year| Measure and record voltage| In the sec months in the first year. e collected every thrond year, discharge data wer al records through ee months. Check the historic ormation shows the RS232 port. If the alarm inf charged, that the battery is frequently over the battery has reached the charging and   discharging protection point. This may lead to insufficient time for power preparation. It  is  ecommended to replace the battery immediately.

※ 9.2 Troubleshooting
If any battery fault occurs, record the fault information, shut down the battery according to the shutdown procedure, and contact the distributor or Sunways. Do not handle the fault by yourself.

Technical Parameters

Rec    Discharge Current (A)     ge/

ommend Continuous Char

| 50| 50| 50
Discharge Current (A)| 25| 25| 25
Weight (Kg)| 110.9| 143.2| 175.5
Dimension[WHD] (mm)| 708616315| 708776315| 708936315
Protection Degree| IP54
Cycle Life| 6,000 cycles @80% DOD
Charging Temperature Range (℃ )| 0~45
Discharging Temperature Range (℃ )| -10~45
Relative humidity| 5%-95% (No condensation)
Altitude (m)| 2000
Module Connection| Series / Hard Connection with Positioner
Installation Method| Stackable
Module Number| 2| 3| 4
Communication Protocol/Connector Type| CAN/RJ45
Certification| CE/IEC62619/UN38.3

Rec    Discharge Current (A)     ge/

ommend Continuous Char

| 50| 50| 50
Discharge Current (A)| 25| 25| 25
Weight (Kg)| 207.8| 240.1| 272.4
Dimension[WHD] (mm)| 7081096315| 7081256315| 7081416315
Protection Degree| IP54
Cycle Life| 6,000 cycles @80% DOD
Charging Temperature Range (℃ )| 0~45
Discharging Temperature Range (℃ )| -10~45
Relative humidity| 5%-95% (No condensation)
Altitude (m)| 2000
Module Connection| Series / Hard Connection with Positioner
Installation Method| Stackable
Module Number| 5| 6| 7
Communication Protocol/Connector Type| CAN/RJ45
Certification| CE/IEC62619/UN38.3
Model| STE-BS20| STE-BS23| STE-BS25
---|---|---|---
Nominal Capacity (KWh)| 20.48| 23.04| 25.6
Nominal Capacity (Ah)| 50| 50| 50
Nominal Voltage (V) Maximum Charge/| 409.6| 460.8| 512
Rec    Discharge Current (A)     ge/

ommend Continuous Char

| 50| 50| 50
Discharge Current (A)| 25| 25| 25
Weight (Kg)| 304.7| 337| 369.3
Dimension[WHD] (mm)| 7081576315| 7081736315| 7081896315
Protection Degree| IP54
Cycle Life| 6,000 cycles @80% DOD
Charging Temperature Range (℃ )| 0~45
Discharging Temperature Range (℃ )| -10~45
Relative humidity| 5%-95% (No condensation)
Altitude (m)| 2000
Module Connection| Series / Hard Connection with Positioner
Installation Method| Stackable
Module Number| 8| 9| 10
Communication Protocol/Connector Type| CAN/RJ45
Certification| CE/IEC62619/UN38.3

No. 1, Second Road, Green Industrial Zone, Chongshou Town,
Cixi City, ZheJiang Province, PRC
www.sunways-tech.com
service@sunways-tech.com

References

• Sunways | Solar Inverter | Official

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