Delta Amplon RT Series User manual

Delta UPS - Amplon Family
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RT Series, Three Phase
10/ 15/ 20 kVA
User Manual
ESC

AmplonRTSeries 1
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Copyright © 2021 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.

2
Table of Contents
Chapter 1: Important Safety Instructions .................................................................. p. 3
Chapter 2: Introduction ............................................................................................. p. 7
Chapter 3: Operation Panel...................................................................................... p. 12
Chapter 4: Rear Panel.............................................................................................. p. 21
Chapter 5: Communication Interfaces ...................................................................... p. 24
Chapter 6: Installation............................................................................................... p. 27
Chapter 7: UPS Connection ..................................................................................... p. 37
Chapter 8: External Battery Pack ............................................................................. p. 69
Chapter 9: Operation ................................................................................................ p. 87
Chapter 10: LCD Display & Settings ........................................................................ p. 93
Chapter 11: Optional Accessories............................................................................. p. 111
Chapter 12: Troubleshooting .................................................................................... p. 113
Chapter 13: Maintenance ......................................................................................... p. 119
Appendix 1: Technical Specifications........................................................................ p. 121
Appendix 2: Warranty ............................................................................................... p. 123

AmplonRTSeries 3
Chapter 1 : Important Safety Instructions
1.1 Safety Instructions
Installation Warnings
Before installation and usage, please read this User Manual thoroughly. This helps you to
use the product correctly and safely.
Install the UPS in a well-ventilated indoor area, away from excess moisture, heat, dust,
flammable gas or explosives. To avoid fire accidents and electric shock, the indoor area must
be free of conductive contaminants. For the temperature and humidity specifications, please
refer to Appendix 1: Technical Specifications.
Follow the IEC 60364-4-42 standard to install the UPS.
Leave adequate space (at least 50 cm (19.7”)) at the front and rear of the UPS for proper
ventilation.
Connection Warnings
The UPS must be well grounded due to a possible risk of current leakage.
It is necessary to connect protective devices with the UPS when the UPS is connected to
power sources and critical loads.
The protection devices connected to the UPS must be installed near the UPS and must be
easily accessible for operation.
If you need to move the UPS or perform re-wiring, please turn off the AC input power and
disconnect the battery input to ensure that the UPS has been safely shut down. Otherwise,
the output end might still be energized, which might cause electric shock.
Usage Warnings
This is a class-A product. In a domestic environment, this product may cause radio
interference, in which case the user is required to take adequate measures.
The UPS can be used to power computers and associated peripheral devices, such as
monitors, modems, cartridge tape drives, external hard drives, etc.
It is not recommended to connect the UPS with the following types of loads. For the load
suitability, please contact Delta customer service before purchasing.
1. regenerative loads (e.g. CNC machines and lifts)
2. asymmetrical loads (e.g. fans with half-bridge drivers and laser printers)

4
To ensure reliable operation of the UPS and to protect the UPS from overheating, the slits
and openings in the UPS must not be blocked or covered.
Before usage, you must allow the UPS to adjust to room temperature for at least one hour to
ensure that there is no moisture condensing inside the UPS.
Do not pour and splash any liquid on the UPS. Do not insert any object into the UPS’s slits
and openings. Do not put beverages on or around the UPS.
When an emergency occurs, (1) press and hold the ON/ OFF button ( ) for 3 seconds, (2)
release it after you hear the beep sound, (3) use the Scrolling Up or Down button ( / )
to select ‘Yes’, and (4) press the Enter button ( ) to confirm your selection to turn off the
UPS. After that, cut off the input power to shut down the UPS completely.
Do not use any cleaning liquid or cleaning spray to clean the UPS. Before cleaning, please
make sure that the UPS has been shut down completely, the UPS’s input power cables have
been unplugged, and the batteries have been disconnected.
All maintenance services must be performed by qualified service personnel.
Forbid opening or removing the cover of the UPS by yourself to avoid high voltage electric
shock.
You must contact qualified service personnel if either of the following events occurs:
1. Liquid is poured or splashed on the UPS.
2. The UPS does not run normally after the instructions in this User Manual are carefully
observed.
NOTE:
If you use the UPS in an area that generates or incurs dust, you should install a dust filter
(optional) in the UPS to ensure its normal product life and functions.
Battery Precautions
Keep the batteries away from heat sources. Do not open or mutilate the batteries.
Do not dispose of batteries in a fire. The batteries may explode.
The released electrolyte is harmful to skin and eyes and may be toxic.
A battery can present a risk of electric shock and high short-circuit current.

AmplonRTSeries 5
Servicing of the batteries and battery packs must be performed or supervised by qualified
service personnel knowledgeable in the batteries, battery packs and required precautions.
Keep unauthorized personnel away from the batteries and battery packs.
The risk of electric shock and short-circuit current is possible when the batteries are
connected to the UPS. Before maintenance, disconnect all batteries to cut off the battery
power.
For battery replacement, use only the same number and type of batteries.
Observe the following before replacing the batteries:
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 the charging source prior to connecting or disconnecting the battery input
terminals.
6. Remove every battery grounding during installation and maintenance to reduce the
likelihood of electric shock. If any part of the batteries is grounded, please remove the
grounding connection.
Do not connect the batteries in reverse; otherwise, an electric shock or fire accident might
occur.
The batteries might lose their power during shipment or storage. Before you use the UPS for
the first time, please fully charge the batteries until the battery percentage shown on the
UPS’s LCD is 100% ( ). If the UPS needs to be stored for an extended period of time,
please fully recharge the lead-acid batteries (for at least 24 hours) every three months. As for
lithium-ion batteries and other batteries, please contact your battery vendor for the
information. Regardless of battery type, please fully charge the batteries until the battery
percentage shown on the LCD is 100% ( ).
NOTE:
To charge the batteries, please connect the external battery pack to the UPS.

6
WARNING:
1. The risk of electric shock and short-circuit current is possible when the batteries are
still connected to the UPS even if the UPS has been disconnected from the mains. Make
sure to cut off the battery source before maintenance.
2. When the UPS is connected to an external battery pack, installation of appropriate
protection devices, such as DC fuses or a DC breaker, is required.
1.2 Standard Compliance
CE, UL/ cUL, RCM, TISI, Energy star
UL1778 (for UPS + EBC), IEC/ EN 62040-1 (for UPS + EBC + PDB/ MBB)
EN 62040-2 Category C2/ FCC class A
1.3 Storage
Prior to installation
If the UPS needs to be stored prior to installation, it should be placed in a dry and well-
ventilated area. The allowable storage temperature is between -15°C (5°F) and +55°C (131°F)
and the allowable relative humidity (non-condensing) is between 5% and 95%.
After usage
(1) Press and hold the ON/ OFF button ( ) for 3 seconds, (2) release it after you hear the
beep sound, (3) use the Scrolling Up or Down button ( / ) to select 'Yes', and (4) press
the Enter button ( ) to confirm your selection to turn off the UPS. Make sure the UPS is shut
down, disconnect the UPS from the utility AC power, remove all loads/ equipment from the
UPS, and store the UPS in a dry and well-ventilated area at a temperature between -15°C
(5°F) and +55°C (131°F) and at a relative humidity (non-condensing) between 5% and 95%.
If the UPS needs to be stored for an extended period of time, please recharge the idle batteries
regularly. Refer to the above section Battery Precaution for relevant information.
NOTE:
1. To charge the batteries, please connect the external battery pack to the UPS.
2. After storage and before start-up of the UPS, you must allow the UPS to adjust to room
temperature (20°C ~ 25°C (68°F ~ 77°F)) for at least one hour to ensure that there is no
moisture condensing inside the UPS.

AmplonRTSeries 7
Chapter 2 : Introduction
2.1 Product Description
The RT series UPS (models available: RT-10K3P, RT-15K3P and RT-20K3P) is an advanced on-
line and double-conversion UPS which provides your sensitive equipment with reliable and
consistent sine-wave power. It helps to save on electricity costs and keep your electronic
equipment safe and able to run smoothly at all times. The unit’s output power factor is up to unity,
achieving power and energy efficiency.
The UPSs accept three-phase power supply. When taking three-phase input power, the UPS output
can be configured into three-phase or single-phase to adapt to your loads. You can connect a
variety of facilities such as personal computers, networks, servers, and telecommunication
equipment to the UPS.
The UPS does not have internal batteries and must be connected to an external battery pack. See
the battery options below.
1. Standard battery pack (optional) – Delta lead-acid battery pack or Delta lithium-ion battery pack
(RT-20K-LIB/ RT-10K-LIB)
2. Customer-owned battery pack – lead-acid battery or others

8
2.2 Exterior & Dimensions
(Figure 2-1-1: RT-10K3P UPS_ Exterior & Dimensions)
(Figure 2-1-2: RT-15K3P/ RT-20K3P UPS_ Exterior & Dimensions)

AmplonRTSeries 9
2.3 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.
Models: UPS103R6RT2N035/ UPS103R6RT2N0B0
No. Item Q’ty
1 UPS 1 PC
2 User Manual 1 PC
3 Parallel Cable 1 PC
4 Tower Stand 1 Set
5 Terminal Kit 1 Set
6 Battery Cable (1500 mm (59”))*11 PC
7 Bus Bar 1 Set
8 Ear Bracket Kit 1 Set
9 USB Cable 1 PC
10 Factory Test Report 1 PC

10
Models: UPS153R6RT2N035/ UPS203R6RT2N035/ UPS153R6RT2N0B0/ UPS203R6RT2N0B0
No. Item Q’ty
1 UPS 1 PC
2 User Manual 1 PC
3 Parallel Cable 1 PC
4 Tower Stand 1 Set
5 Terminal Kit 1 Set
6 Battery Cable*2(330mm (13”), used for connection to the
optional Delta lead-acid battery pack) 1 PC
7 Battery Cable*2(500mm (19.7”), used for connection to the
optional Delta lead-acid battery pack) 1 PC
8 Ear Bracket Kit 1 Set
9 USB Cable 1 PC
10 Factory Test Report 1 PC

AmplonRTSeries 11
NOTE:
1. *1The battery cable is for connection to the customer-owned lead-acid battery pack.
2. *2The two battery cables are for connection to the 15/20K UPS shipped without battery
cables already being installed; the connection should be performed by qualified service
personnel. For details, please refer to Chapter 8.5.1.
3. If there is any damage or anything missing, please immediately contact the dealer from
whom you purchased the unit.
4. If the UPS needs to be returned, carefully repack the UPS and all of the accessories
using the original packing materials.

12
Chapter 3 : Operation Panel
The operation panel is located on the front of the UPS with two LED indicators, an LCD display,
and multi-function buttons. See Figure 3-1.
(Figure 3-1: Operation Panel)
3.1 LED Indicators
No. LED Indicator Description
1
ON: The output is protected.
OFF: The output is not protected.
2
ON: The UPS detects an internal fault or environmental abnormality.
OFF: The UPS is in a normal state.
Flashing: The UPS sends an alarm message. For details about the
alarm messages, please refer to Chapter 12.

AmplonRTSeries 13
3.2 Multi-function Buttons
No.
Multi-function
Button Description
1
ON/ OFF
Button
The button has multiple functions. Please refer to the following for
detailed information.
1. Turn on
In standby/ bypass mode, press and hold the button for 3
seconds, and release it after you hear the beep sound. After
that, the UPS will start up.
Cold start: when there is no AC input, press and hold the button
for 3 seconds, and release it after you hear the beep sound.
After that, the UPS will run in battery mode. Please refer to
Chapter 9.1.2 for details.
2. Turn off
In online mode, press and hold the button for 3 seconds, and
release it after you hear the beep sound. After that, the inverter
will be off and the UPS will transfer to run in standby/ bypass
mode. The UPS will keep charging the batteries when in
standby/ bypass mode. To fully turn off the UPS, please
disconnect the UPS from the AC power.
In battery mode, press and hold the button for 3 seconds, and
release it after you hear the beep sound. After that, the UPS will
turn off its output.

14
No.
Multi-function
Button Description
ON/ OFF
Button
(Continued)
3. Fault clear
When the UPS is under a fault condition, press and hold the button
for 3 seconds, and release it after you hear the beep sound. After
that, the UPS will try to clear the fault and restart itself.
After the UPS’s restart, if the fault condition has been cleared
successfully, the buzzer will be off and the alarm message on the
screen (refer to Chapter 3.3.1) will disappear. Otherwise, the buzzer
will still be on and the alarm message will remain on the screen. To
clear the fault, please refer to Chapter 12.
2
Enter Button
The button has multiple functions. Please refer to the following for
detailed information.
1. Enter the Main Menu
In the Main Screen (that shows the current operation mode), press
the button for 0.1 second and the UPS will enter the Main Menu.
Please refer to Chapter 10 for details.
2. Select and confirm the parameter
Press the button to choose the parameter that you want to change,
and the chosen parameter will flash. Then, press the Scrolling Up or
Down button ( / ) to change the parameter, and press the enter
button again to confirm the change.

AmplonRTSeries 15
No.
Multi-function
Button Description
3
Scrolling Up
Button
The button has multiple functions. Please refer to the following for
detailed information.
1. Shortcut button
In the Main Screen, press the button for 0.1 second and the UPS will
directly enter the Measurement Menu’s Output screen. For details
about the LCD items, see Figure 10-1: Menu Tree.
2. Scroll up/ increase the setting value
The button can be used to navigate the setting items. Press the
button for 0.1 second to go to the previous setting item.
The button can also be used to set up the parameter. Press the
button for 0.1 second to increase the setting value. If the button
is pressed for more than 2 seconds, the setting value will
increase by its minimum adjustable unit every 0.2 second
automatically until the button is released or the setting value
reaches the maximum.
3. Reset the LCD
Press the Scrolling Up button ( ) and Scrolling Down button ( )
together for 3 seconds to reset the LCD display.
4
Scrolling
Down Button
The button has multiple functions. Please refer to the following for
detailed information.
1. Shortcut button
In the Main Screen, press the button for 0.1 second and the UPS will
directly enter the Measurement Menu’s Output screen. For details
about the LCD items, see Figure 10-1.

16
No.
Multi-function
Button Description
Scrolling
Down Button
(Continued)
2. Scroll down/ decrease the setting value
The button can be used to navigate the setting items. Press the
button for 0.1 second to go to the next setting item.
The button can also be used to set up the parameter. Press the
button for 0.1 second to decrease the setting value. If the button
is pressed for more than 2 seconds, the setting value will
decrease by its minimum adjustable unit every 0.2 second
automatically until the button is released or the setting value
reaches the minimum.
3. Reset the LCD
Press the Scrolling Up button ( ) and Scrolling Down button ( )
together for 3 seconds to reset the LCD display.
5
Escape Button
The button has multiple functions. Please refer to the following for
detailed information.
1. Go back to the previous menu level
Press the button for 0.1 second to go back to the previous menu
level.
2. Silence the buzzer temporarily
When the UPS is under a fault condition, press and hold the button
for 3 seconds and release it after you hear the beep sound. After
that, the buzzer will stop sounding unless a new fault condition
occurs. For details, please refer to Chapter 9.3.
NOTE:
When the LCD backlight is off and you would like to wake it up, press any of the multi-
function buttons listed above.

AmplonRTSeries 17
3.3 LCD Display
3.3.1 Icon/ Display Definition
No. Icon Description
1 Indicates that the UPS is operating in parallel; the number
on the lower right side is the UPS’s parallel ID.
2
Indicates the battery percentage (%).
When there is no external battery pack connected to the
UPS, this icon will flash.
Indicates that the batteries are bad and need a
replacement.
3 Indicates the load percentage (%).

18
No. Icon Description
4
When the UPS runs normally, the input/ output voltage
and frequency will show at the bottom of the screen.
When the UPS has abnormalities or is under fault
conditions, this display will show one of the event codes
and its corresponding alarm message. For details of
event codes and alarm messages, please refer to
Chapter 12.
NOTE:
1. The event code and the alarm message will
appear alternately every 5 seconds.
2. To view all the alarm history records (up to
200 pieces of data can be saved), please go
to
→Log →Event List.
5 Indicates that the buzzer is muted.

AmplonRTSeries 19
3.3.2 Operation Mode Diagram Definition
The operation mode diagrams are listed below. For more information, refer to Chapter 9.4.
No. Operation Mode Diagram Description
1 Indicates online mode.
2
Indicates ECO mode.
NOTE:
In ECO mode, the power flow
diagram will change according to the
UPS’s input voltage and frequency.
However, the icon ( ) shown
in the upper-left corner will not
change even if the UPS transfers to
online mode or battery mode.
3 Indicates battery mode.
4 Indicates bypass mode.