Samsung U6A4 User manual

English 8/2020. Rev 0.3
LIB System for UPS –U6A4
Installation Manual
(128S)

English 8/2020. Rev 0.3
Read this manual carefully before starting to install the battery system. Keep
these instructions for future reference.

English 8/2020. Rev 0.3
Copyright © 2019 SAMSUNG SDI Co., Ltd. All rights reserved.
This document contains information that is the property of SAMSUNG SDI Co., Ltd., and provides for the sole
purpose of the installation, operation, and maintenance of products of SAMSUNG SDI Co., Ltd. No part of
this publication is to be used for any other purpose, and it is not to be reproduced, copied, disclosed,
transmitted, stored in a retrieval system, or translated into any human or computer language, in any form, by
any means, in whole or in part, without prior written consent of SAMSUNG SDI Co., Ltd.
Although every possible effort has been made to ensure the accuracy of this document, SAMSUNG SDI Co.,
Ltd. assumes no responsibility for errors that may appear herein. The information is subject to change
without notice.

English 8/2020. Rev 0.3

Important Safety Instructions
English 8/2020. Rev 0.3 i
Important Safety Instructions
Read and follow these instructions!
The following precautions are intended to ensure your safety and prevent property damage. Before installing
this product, be sure to read all safety instructions in this document for proper installation.
DANGER
Failure to comply with the instructions with this symbol may result in a serious accident, causing
death or a severe injury.
WARNING
Failure to comply with the instructions with this symbol may result in a serious accident, causing a
severe injury.
CAUTION
Failure to comply with the instructions with this symbol may result in minor or moderate injury.
NOTICE
Provides information considered important but not hazard-related. The information relates to
property damage.
Important
Indicates valuable tips for optimal installation and operation of the product.

Important Safety Instructions
ii English 8/2020. Rev 0.3
General Instructions
Please be aware that a battery presents a risk of electrical shock including high short-circuit current. Follow
all safety precautions while operating the batteries.
Remove watches, rings, and other metallic accessories.
Use tools with insulated handles in order to avoid inadvertent short circuits.
Wear rubber gloves and safety boots.
Do not put tools or any metal parts on the top of the batteries.
Disconnect charging source and load before connecting or disconnecting terminals.
Use proper lifting means when moving batteries and wear all appropriate safety clothing and equipment.
Batteries must be handled, transported and recycled or discarded in accordance with federal, state, and local
regulations. Do not dispose of the batteries in a fire because they can explode.
Do not open or mutilate the batteries.
Only authorized, trained technicians should perform annual preventive maintenance.
Only qualified personnel who are familiar with the batteries and safety precautions should perform
installation or maintenance of the battery.
Do not allow unauthorized personnel to contact the batteries.
Safety Precautions
The following precautions provide general safety guidelines that should be followed when working with or
near the Energy Storage System (ESS). Complete safety parameters and procedures are site-specific and
should be developed by the customer for the installation site.
Review and refer to all safety warnings and cautions in this manual before installation.
Build a clear, permanent, restricted access area around the system.
Only authorized, adequately trained electrical operators should be able to access the system.
The interior design of this equipment must be considered a “no-go area except for non-qualified personnel
who are familiar with the batteries and safety precautions,”depending on the location. Consult local codes
and applicable rules and regulations to determine permit requirements. If required, mark enclosures
appropriately before beginning work.

Important Safety Instructions
English 8/2020. Rev 0.3 iii
Personnel and Equipment Warnings
Personnel in contact with the battery system should be aware of the following hazards:
WARNING—SHOCK HAZARD
Do not contact system connectors or terminals. Do not open the enclosure doors unless proper lock
out/tag out procedures and related trainings are followed in accordance with the local codes and
regulations.
WARNING—ARC FLASH HAZARD
There is an arc flash hazard associated with all electrical equipment. There is a serious risk of arc flash
relating to any equipment modification (e.g. opening doors). Serious injuries can occur in arc flash
incidents. Appropriate training is required in accordance with local codes and regulations.
WARNING—FIRE HAZARD
Fire may occur under certain fault conditions.
CAUTION—PINCH POINTS
Multiple pinch-points are present in most system components. Be aware that there is a serious risk of
injury while working around and in equipment enclosures.
CAUTION—STATIC SENSITIVE
Electronic appliances can be damaged by electrostatic discharge. Proper handling procedures are
required. Be sure to wear a grounded anti-static wrist strap and to discharge static electricity by touching
a grounded surface near the equipment before touching any system components.
Dangerous Voltages
DANGER
The ESS is powered by multiple power sources. Hazardous voltages may be present in the equipment
even when it does not appear operational. Make sure that you completely understand the cautions and
warnings in this installation manual. Failure to do so may result in serious injury or death. Follow all
manufacturer-published safety procedures.
Electrical equipment can present a risk of electrical shock and can cause arc flash. The following
precautions must be observed when working on or around electrical equipment:
Remove watches, jewelry, rings, and other metallic objects.
Use tools with insulated handles.
Safety clothing and shoes must comply with local codes and regulations.

Important Safety Instructions
iv English 8/2020. Rev 0.3
Lock Out/Tag Out Guidelines
DANGER
Follow all applicable lock out/tag out procedures at all times. Failure to follow proper lock out/tag out
procedures may result in serious injury or death.
With power applied to the ESS, hazardous voltages are present on some components. To prevent
accidental death or injury, do not touch any components within the enclosure unless you are specifically
directed to do so. To reduce the risk of electrical shock, make sure that all equipment is properly
grounded. For more information, refer to 3.1 Grounding the Battery System
WARNING
Enclosure doors must remain closed except when access to the enclosure interior is required. If possible,
personnel should keep a safe distance from enclosures whenever the equipment is energized. Always
comply with local, state, and national lock out/tag out guidelines when working with or near the ESS. The
lock out/tag out procedures must meet or exceed the requirements of all guidelines presented in
SAMSUNG SDI safety documentation. Before entering potentially hazardous areas or beginning work on
the ESS, complete the following tasks:
Identify and wear protective clothing and shoes.
Identify and isolate all power and stored energy sources.
Apply appropriate lock out/tag out devices. When applying lock out/tag out to the ESS, do not touch anything within the
enclosure except as specifically directed in the work procedures.
Complete the site-specific lock out/tag out procedures and safety checklist before beginning work.
General Warnings
DANGER
When energized, this equipment presents a potential hazard of electric shock, death, and burn.
Only authorized personnel who are thoroughly familiar with the equipment and adequately
trained should install, operate, or maintain this equipment.
DANGER
To avoid death, personal injury, or damage to the product, follow all safety procedures as
regulated by Environmental Health and Safety (EHS) guidelines.
DANGER
To minimize the hazards of electrical shock, death, and burns, approved grounding practices and
procedures should be strictly followed.
WARNING
To avoid personal injury and damage to equipment, personnel must adhere to the site protocol
concerning working at heights.

Important Safety Instructions
English 8/2020. Rev 0.3 v
WARNING
To avoid personal injury or equipment damage caused by equipment malfunction, only adequately
trained personnel should modify any programmable machine.
WARNING
Always ensure that applicable standards and regulations are followed and only properly certified
equipment is used as a critical component of a safety system. Never assume that a safety-critical
control loop is functioning correctly.

Important Safety Instructions
vi English 8/2020. Rev 0.3