Delta RT Series User manual

Delta UPS - Amplon Family
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User Manual
RT Series, Single Phase
5/ 6/ 8/ 10kVA
RT Series, Three Phase
10/ 11/ 15/ 17/ 20kVA
Lithium-ion Battery Pack

AmplonRTseries 2
SAVE THIS MANUAL
Copyright © 2020 by Delta Electronics Inc. All Rights Reserved. All rights of this User Manual
(“Manual”), including but not limited to the contents, information, and figures are solely owned and
reserved by Delta Electronics Inc. (“Delta”). The Manual can only be applied to the operation or the
use of this product. Any disposition, duplication, dissemination, reproduction, modification,
translation, extraction, or usage of this Manual in whole or in part is prohibited without the prior
written permission of Delta. Given that Delta will continuously improve and develop the product,
changes may be made to the information in this Manual at any time without obligation to notify any
person of such revision or changes. Delta will make all possible efforts to secure the accuracy and
the integrity of this Manual. Delta disclaims any kinds or forms of warranty, guarantee, or
undertaking, either expressly or implicitly, including but not limited to the completeness,
faultlessness, accuracy, non-infringement, merchantability or fitness for a particular purpose of the
manual.
This manual contains important instructions and warnings that you should follow during the
installation, operation, storage and maintenance of this product. Failure to heed these
instructions and warnings will void the warranty.

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Table of Contents
Chapter 1 : Product Introduction................................................................................................. 4
Chapter 2 : Important Safety Instructions ................................................................................... 6
2.1 Safety Instructions ....................................................................................................6
2.2 Standard Compliance ...............................................................................................7
2.3 Storage......................................................................................................................8
2.4 Recycling and Disposal.............................................................................................8
Chapter 3 : Package List ............................................................................................................ 9
Chapter 4 : Rear Panel ..............................................................................................................11
Chapter 5 : Installation Procedures .......................................................................................... 13
5.1 Rack Mounting ........................................................................................................13
5.2 Tower Mounting ......................................................................................................14
Chapter 6 : Connection............................................................................................................. 18
6.1 Connecting the Delta Lithium-ion Battery Pack (Model: RT-20K-LIB)
to its corresponding UPS ........................................................................................18
6.2 Connecting the Delta Lithium-ion Battery Pack (Model: RT-10K-LIB)
to its corresponding UPS ........................................................................................20
Chapter 7 : Battery Module Installation & Replacement........................................................... 21
Chapter 8 : Operation Procedures............................................................................................ 24
Chapter 9 : Maintenance .......................................................................................................... 25
Appendix 1 : Technical Specifications....................................................................................... 26
Appendix 2 : Warranty .............................................................................................................. 28

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Chapter 1 : Product Introduction

The Delta lithium-ion battery pack (hereafter referred to as ‘battery pack’) provides
DC power and maintains inverter’s operation of transferring DC-to-AC power to
supply stable power to the critical loads connected to the UPS when the main AC
source is abnormal. It must be operated in conjunction with a corresponding Delta
Amplon RT series UPS as shown in the table below. For its appearance and block
diagrams, please refer to the following figures.
Delta Lithium-ion
Battery Pack Model
Applicable to Delta
Amplon RT Series UPS Model
RT-20K-LIB RT-11K3P-LV, RT-15K3P,
RT-17K3P, RT-20K3P
RT-10K-LIB RT-5K1P, RT-6K1P, RT-8K1P,
RT-10K1P, RT-10K3P
(Figure 1-1: Front View of the Delta Lithium-ion Battery Pack)
(Figure 1-2: Block Diagram of RT-20K-LIB)

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BM1
BM2
+
+
-
-
Breaker Connector
BMS
(Figure 1-3: Block Diagram of RT-10K-LIB)

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Chapter 2 : Important Safety Instructions
2.1 Safety Instructions
• Servicing of batteries and battery packs must be performed or supervised by
qualified service personnel knowledgeable in the batteries, battery packs
and the required precautions. Keep unauthorized personnel away from the
batteries and battery packs.
• A battery can present a risk of electric shock and high short-circuit current.
• To reduce the risk of fire or electric shock, install the battery pack in a
temperature and humidity controlled indoor area free of conductive
contaminants.
• Forbid opening or removing the cover of the battery pack to avoid high
voltage electric shock.
• The risk of dangerous high voltage is possible when the batteries are still
connected to the UPS even though the UPS is disconnected from the mains.
Do not forget to disconnect the battery cable to completely cut off the battery
source.
• Only qualified service personnel can perform battery replacement. Before
battery replacement, please turn off the battery breaker. If replacing the
batteries without turning off the UPS, please make sure the UPS has
detected “Battery Disconnected” before turning on the battery breaker.
• Only use the same type of batteries from the same supplier. Never use old,
new and different Ah batteries at the same time.
• Do not reverse or short circuit the polarity + and – when connecting the
batteries because this will destroy the device and constitute a risk of electric
shock or fire.
• The external slits and openings in the battery pack are provided for
ventilation.
• To ensure reliable operation of the battery pack and to protect the battery
pack from overheating, these slits and openings must not be blocked or
covered. Do not insert any object into the slits and openings that may hinder
ventilation.

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• Do not pour or splash any liquid on the battery pack.
• Do not insert any object into the battery pack.
• Do not place beverages or any liquid-containing vessels on or near the
battery pack.
• Do not dispose of the battery or batteries in a fire. The batteries may
explode.
• Do not open or mutilate the battery or batteries. The released electrolyte is
harmful to the skin and eyes and may be toxic.
• Observe the following before battery replacement:
1. Remove watches, rings, or other metal objects.
2. Use tools with insulated handles.
3. Wear rubber gloves and boots.
4. Do not lay tools or metal parts on the top of batteries.
5. Disconnect charging source prior to connecting or disconnecting battery
terminals.
•
The two symbols shown above indicate that there is high voltage circuit. Do
not open the cover(s) of the Delta lithium-ion battery pack.
• The operating temperature of the Delta lithium-ion battery pack is 0°C ~
45°C (32°F ~ 113°F).
2.2 Standard Compliance
• CE
• CAN/ UL1973

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2.3 Storage
• Prior to installation
If the Delta lithium-ion battery pack needs to be stored prior to installation, it
should be placed in a dry area. The allowable storage temperature and
relative humidity (non-condensing) are -15°C ~ +50°C (5°F ~ 122°F) and 5%
~ 95% respectively.
• After usage
Remove all connected devices from the Delta lithium-ion battery pack, and
store it in a dry and well-ventilated area at a temperature between -15°C and
+50°C (5°F ~ 122°F) and at a relative humidity (non-condensing) between
5% ~ 95%.
2.4 Recycling and Disposal
• Please follow the local government’s laws to handle and dispose of the
Delta lithium-ion battery pack.

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Chapter 3 : Package List
The package contains the following items. Please check if any item is missing. If
there is anything missing, please contact the dealer immediately.
Model: RT-20K-LIB
No. Item Q’ty
1 Delta Lithium-ion Battery Pack 1 PC
2 User Manual 1 PC
3 RS-485 Cable 1 PC
4 Ear Bracket Kit 1 SET
5 Rear Panel for UPS 1 PC
6 Tower Stand Extender 4 PCS
7 Battery Cable 1 PC

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Model: RT-10K-LIB
No. Item Q’ty
1 Delta Lithium-ion Battery Pack 1 PC
2 User Manual 1 PC
3 RS-485 Cable 1 PC
4 Ear Bracket Kit 1 SET
5 Tower Stand Extender 4 PCS
6 Battery Cable 1 PC
7Grounding kit 1 SET
NOTE:
1. If there is any damage or anything missing, please immediately contact
the dealer from whom you purchased the unit.
2. If the battery pack needs to be returned, carefully repack the battery
pack and all of the accessories using the original packing materials that
came with the unit.

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Chapter 4 : Rear Panel
(Figure 4-1: Rear View of RT-20K-LIB)
No. Item Function
1 External Batt.
Connector
Connects with the UPS to supply battery power. Pin
assignment of the external battery connector is
shown as follows.
2 RS-485 Port
The lithium-ion battery pack communicates with the
UPS via the RS-485 port.
3 Breaker Serves as a switch for safety protection.
4 Fan Ventilates the air to avoid overheating.

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(Figure 4-2: Rear View of RT-10K-LIB)
No. Item Function
1 External Batt.
Connector
Connects with the UPS to supply battery power. Pin
assignment of the external battery connector is shown
as follows.
2 RS-485 Port The lithium-ion battery pack communicates with the
UPS via the RS-485 port.
3 Breaker Serves as a switch for safety protection.
4 Fan Ventilates the air to avoid overheating.

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Chapter 5 : Installation Procedures
5.1 Rack Mounting
You can rack-mount the UPS and the Delta lithium-ion battery pack in a standard
19-inch server rack. The UPS and the Delta lithium-ion battery pack adopt the
same mounting kits and mounting procedures. The instructions below only show
the rack mounting procedures of the Delta lithium-ion battery pack. If you want to
check the rack mounting procedures of the UPS, please refer to the Delta
Amplon RT Series UPS’s User Manual.
1. Attach the ear brackets provided in the package to the lateral mounting holes
of the Delta lithium-ion battery pack. See Figure 5-1.
(Figure 5-1: Fix the Ear Brackets)
2. Follow the steps ❶~ ❸to install the Delta’s rail kit (optional) onto your rack,
and follow the step ❹to insert the Delta lithium-ion battery pack into the
rack. See Figure 5-2.
Step ❶: Adjust the length of the rails according to your rack.
Step ❷: Tighten the rails’ nuts.
Step ❸: Fix the rails onto your rack.

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Step ❹: Insert the Delta lithium-ion battery pack into your rack and tighten the
provided screws.
(Figure 5-2: Insert the Delta Lithium-ion Battery Pack into Your Rack)
NOTE:
If you want to use a non-Delta rail kit, please only follow step ❹.

5.2 Tower Mounting
You can tower-mount the UPS and the Delta lithium-ion battery pack in an
upright position. The UPS and the Delta lithium-ion battery pack adopt the same
mounting kits and mounting procedures. The instructions below only show the
tower mounting procedures of the Delta lithium-ion battery pack. If you want to
check the tower mounting procedures of the UPS, please refer to the Delta
Amplon RT Series UPS’s User Manual.

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1. Connect the provided tower stand extenders with the tower stands provided
in the UPS’s package. Please take the UPS and the Delta lithium-ion battery
pack’s size into consideration. See Figure 5-3.
(Figure 5-3: Connect the Tower Stand Extenders with the UPS’s Tower
Stands)
NOTE:
Delta lithium-ion battery pack does not provide any tower stands. The
tower stands are only provided in the UPS’s package.
2. Pull out the Delta lithium-ion battery pack’s control panel ( ❶& ❷), rotate it
90° clockwise ( ❸) and re-insert the control panel ( ❹). After that, rotate
the Delta logo nameplate 90° clockwise ( ❺). See Figure 5-4.

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(Figure 5-4: Rotate the Delta Lithium-ion Battery Pack’s Control Panel &
Delta Logo Nameplate)
3. Carefully lift the Delta lithium-ion battery pack upright with the Delta logo and
icon on the control panel facing up. At least two people are required. See
Figure 5-5.
(Figure 5-5: Lift the Delta Lithium-ion Battery Pack Upright)

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4. Fit the Delta lithium-ion battery pack and the UPS into the tower stands. See
Figure 5-6.
(Figure 5-6: Fit the Delta Lithium-ion Battery Pack and the UPS into the
Tower Stands)
NOTE:
For RT-10K-LIB model, follow the figure below to install the provided
grounding kit on the UPS and the Delta lithium-ion battery pack for
grounding purpose.
(Figure 5-7: Grounding Kit Installation)

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Chapter 6 : Connection
NOTE:
Before connecting the Delta lithium-ion battery pack (model: RT-20K-LIB)
to its corresponding UPS, you have to replace the rear panel of the UPS
because the rear panel of the UPS is only suitable for the Delta lead-acid
battery pack. For the Delta lithium-ion battery pack whose model is RT-
10K-LIB, there is no need to replace its UPS’s rear panel.

6.1 Connecting the Delta Lithium-ion Battery Pack (Model: RT-20K-LIB) to
its corresponding UPS
Follow the instructions below and the steps ❶~ ❻shown in Figure 6-1 to
connect the Delta lithium-ion battery pack (Model: RT-20K-LIB) to its
corresponding UPS.
Step ❶: Replace the rear panel of the UPS with the rear panel provided in the
Delta lithium-ion battery pack’s package.
Step ❷: Tighten the real panel’s screws.
Step ❸: Place the Delta lithium-ion battery pack under the UPS.
Step ❹: Install the cable glands (not provided).
Step ❺: Remove the upper cover at the rear of the UPS to find the UPS’s wiring
terminals. For more information about the upper cover location and the
UPS’s wiring terminals, please refer to the Delta Amplon RT Series
UPS’s User Manual.
Use the provided battery cable to connect the UPS’s battery terminals
and the Delta lithium-ion battery pack’s external battery connector.
Make sure that the battery cable’s positive pole (+), negative pole (-)
and the neutral pole (N) connect to the UPS’s battery terminals (+), (-),
and (N) respectively. Do not make wrong connections.
Step ❻: Use the provided RS-485 cable to connect the UPS’s RS-485 port and
the Delta lithium-ion battery pack’s RS-485 port.

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❶ ❷
❸ ❹
❺❻
(Figure 6-1: Connect the RT-20K-LIB with the UPS)

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6.2 Connecting the Delta Lithium-ion Battery Pack (Model: RT-10K-LIB) to
its corresponding UPS
Follow the instructions below and the steps ❶~ ❷shown in Figure 6-2 to
connect the Delta lithium-ion battery pack (Model: RT-10K-LIB) to its
corresponding UPS.
Step ❶: Use the provided battery cable to connect the UPS’s external battery
connector and the Delta lithium-ion battery pack’s external battery
connector ( ). Make sure that the positive cable
(+) connects to the positive pole (+) and the negative cable (-)
connects to the negative pole (-).
Step ❷: Use the provided RS-485 cable to connect the UPS’s RS-485 port and
the Delta lithium-ion battery pack’s RS-485 port.
(Figure 6-2: Connect the RT-10K-LIB with the UPS)