AEC IST3 Series User manual

UPS IST3
(1-10kVA) Series
User Manual
www.aecups.com

(1-10kVA) UPS IST3
User Manual
Foreword
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Foreword
Summaries
Thank you for choosing IST3 UPS of AEC International SRL !
This document gives a description of the (1-10kVA) UPS(hereinafter referred to as UPS), including the
features, performance, appearance, structure, working principles, installation, operation, maintenance,
transportation and storage, etc.
Please save the manual after reading, in order to consult in the future.
The figures in this manual are just for reference, for details please see the actual product.
Symbol Conventions
The manual quotes the safety symbols, these symbols used to prompt users to comply with safety
matters during installation, operation and maintenance. Safety symbol meaning as follows.
Symbol Description
Alerts you to a high risk hazard that could, if not avoided, result in
serious injury or death.
Alerts you to a medium or low risk hazard that could, if not avoided,
result in moderate or minor injury.
Alerts
you to a potentially hazardous situation that could, if not
avoided, result in equipment damage, data loss, performance
deterioration, or unanticipated results.
Anti-static prompting.
Be care electric shock prompting.
Provides a tip that may help you solve a problem or save time.

Foreword
(1-10kVA) UPS IST3
User Manual
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Symbol Description
Provides additional
information to emphasize or supplement
important points in the main text.
Product standard: Q/ZZKJ 001
Change History
Changes between document issues are cumulative. The latest document issue contains all the changes
made in earlier issues.
Issue 001 (2017-09-01)
First issue.

(1-10kVA) UPS IST3
User Manual
Contents
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Contents
1 Safety Description.........................................................................................................................1
1.1 Safety Announcements..................................................................................................................................... 1
1.1.1 Use Announcements................................................................................................................................ 1
1.1.2 Battery Announcements .......................................................................................................................... 2
1.1.3 ESD Protection........................................................................................................................................ 3
1.2 Working Environment Requirements ............................................................................................................... 3
2 Overview.........................................................................................................................................4
2.1 Product Intro..................................................................................................................................................... 4
2.1.1 Model Meaning....................................................................................................................................... 4
2.1.2 Features................................................................................................................................................... 4
2.2 Appearance....................................................................................................................................................... 5
2.2.1 Operation Panel....................................................................................................................................... 7
2.2.2 Rear Panel View...................................................................................................................................... 9
2.2.3 Intelligent Slot....................................................................................................................................... 13
2.2.4 EPO Connector ..................................................................................................................................... 14
2.2.5 RS232 Communication......................................................................................................................... 14
2.3 Working Principles......................................................................................................................................... 15
2.3.1 Working Mode ...................................................................................................................................... 15
2.3.2 UPS Parameters Setting ........................................................................................................................ 18
3 Installation....................................................................................................................................20
3.1 Unpacking and Checking ............................................................................................................................... 20
3.1.1 IST3 - 1kVA(L)/ 2kVA(L)/ 3kVA(L)/ 6kVA(L)/ 10kVA(/B)............................................................... 20
3.1.2 IST3 - 6kVA/10kVA(S) ......................................................................................................................... 20
3.2 Installation Preparation .................................................................................................................................. 22
3.2.1 Input Breaker Selection......................................................................................................................... 22
3.2.2 Selection of the Cross-sectional Area of Wire....................................................................................... 23
3.3 Electrical Connection ..................................................................................................................................... 23

Contents
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User Manual
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3.3.1 IST3 - 1kVA(L).....................................................................................................................................24
3.3.2 IST3 - 2kVA(L)/3kVA(L)..................................................................................................................... 25
3.3.3 IST3 - 6kVA/6kVA(L).......................................................................................................................... 26
3.3.4 IST3 - 10kVA/10kVA(S)/10kVA(/B) ................................................................................................... 28
3.3.5 Intelligent Slot Installation.................................................................................................................... 31
4 Operation and Maintenance .....................................................................................................32
4.1 Check Before Startup ..................................................................................................................................... 32
4.2 Startup Operation ........................................................................................................................................... 32
4.2.1 1kVA(L)/ 2kVA (L)/3kVA (L)............................................................................................................... 32
4.2.2 6kVA(L)/ 10kVA(/B) /10kVA(S) .......................................................................................................... 33
4.3 Shutdown Operation....................................................................................................................................... 33
4.3.1 1kVA(L)/2kVA (L)/3kVA (L)................................................................................................................ 33
4.3.2 6kVA (L)/10kVA (/B) /10kVA(S).......................................................................................................... 33
4.4 Parallel System Operation.............................................................................................................................. 34
4.4.1 Start Parallel System ............................................................................................................................. 34
4.4.2 Close Parallel System............................................................................................................................ 34
4.4.3 Remove Faulty UPS from Parallel System ........................................................................................... 35
4.4.4 Add New UPS into Parallel System ...................................................................................................... 35
4.4.5 Redundancy Funciton of Parallel System ............................................................................................. 35
4.5 Periodic Preventative Maintenance................................................................................................................ 35
4.6 Battery Maintenance ...................................................................................................................................... 36
4.7 Maintenance Byass Mode(Only for UPS with Maintenance Bypass)............................................................ 36
4.8 Troubleshooting.............................................................................................................................................. 37
5 Package, Transportation, Storage.............................................................................................40
5.1 Package .......................................................................................................................................................... 40
5.2 Transportation ................................................................................................................................................ 40
5.3 Storage ........................................................................................................................................................... 40
Appendix A Technical Specifications........................................................................................41
Appendix B Acronyms and Abbreviations...............................................................................45

(1-10kVA) UPS IST3
User Manual
1 Safety Description
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1 Safety Description
This chapter mainly describes the safety announcements. Prior to performing any work on the
device, please read the (1-10kVA) UPS IST3 User Manual carefully, follow the operation and
installation instructions and observe all danger, warning and safety information, which is to avoid
human injury and device damage by irregular operations.
1.1 Safety Announcements
This section mainly describes the safety announcements when operation and maintenance. For details,
please refer to safety description in the relevant chapters.
Before using UPS, please read the announcements and operation instructions in this section carefully
to avoid accident.
The promptings in the (1-10kVA) UPS IST3 User Manual, such as "Danger", "Warning",
"Caution", etc. don't include all safety announcements. They are just only the supplement of safety
announcements when using UPS.
Any device damage caused by violating the general safety operation requirements or safety standards
of design, production, and usage will be out of warranty range.
1.1.1 Use Announcements
There exists high temperature and high voltage inside UPS. When using UPS, please strictly
comply with all warnings and operation instruments on the UPS and in the (1-10kVA) UPS IST3
User Manual.

1 Safety Description
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Only authorized professionals are allowed to open the UPS chassis to avoid electric shock. Otherwise,
if it causes UPS failure, it is out of the guarantee range.
UPS is a class A product. When it is applied to residential building, additional measures should be took
to prevent harassment.
Ensure that no liquid or other foreign objects can enter into UPS.
UPS must be grounded well.
If UPS has to be moved, rewired or maintained, it must disconnect all electrical connection, such
as AC power, battery power, etc. to isolate power. It can't perform any work on the UPS until
UPS is powered off completely(≥10min). Otherwise, the output may have electricity, which may
cause electric shock.
When dismantling fan, do not put fingers or tools into the rotating fan until it has stopped
working to avoid device damage or human injury.
Do not connect unbalance load, half-wave rectification load or inductive load in the output of
UPS, such as air-condition, blower, starter, electric drill, motor, daylight lamp, etc.
In case of fire, use dry powder extinguisher to put out the fire. If you use liquid fire extinguisher,
it may cause electric shock.
1.1.2 Battery Announcements
Please use specified model battery！Non-specified model battery will lead to UPS damage.
Only authorized professional can replace battery. When operation, take off conductive objects,
such as watch, bracelet, bangle, ring, etc., wear rubber shoes and gloves and use tools with
insulated handle.

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Don't put tools or other conductive objects on the battery.
It's prohibited to connect the anode of battery with the cathode of battery or connect them
reversely, which is to avoid fire or electric shock.
Before connecting or disconnecting the battery terminals, disconnect charger first.
The battery must be with the same type, model, and manufacturer.
Battery should be kept away from fire source or all electrical equipments that may easily cause
spark avoid human injury.
Don't open or destroy battery. The electrolyte in the battery includes some dangerous objects,
such as strong acid, which will be harmful to skin and eyes. If it is careless to touch the
electrolyte, clean it by a lot of water immediately and then check it in the hospital.
The waste battery should be disposed according to the local regulations.
1.1.3 ESD Protection
To prevent human electrostatic damaging sensitive components(such as circuit board), make sure that
to wear a anti-static wrist strap before touching sensitive components, and the other end of wrist strap
is well grounded.
1.2 Working Environment Requirements
Don't install UPS where it would be exposed to direct sunlight, in rain or in moist environments.
Don't install UPS where it is with conductive metal dust or nearby heater.
Generally, the working temperature is -5℃～+40℃and the relative humidity is 0%RH～
95%RH that is with no condensation(The recommended working temperature is 20℃~25℃and
the recommended relative humidity is about 50%).
Put UPS in the flat floor without vibration and the vertical gradient is less than 5°. Keep good
ventilation around UPS. The clearance between the rear or the side of UPS and adjacent devices
or wall should be at least 300mm～500mm. Poor ventilation will rise temperature inside UPS,
which will reduce the working life of inner components and then affect the working life of UPS.
The recommended altitude is lower than 1000m. If exceeding 1000m, it need to decrease the
rated power according to GB3859.2-93.

2 Overview
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2 Overview
This chapter mainly describes the model meaning, features, structure and working principle, etc.
2.1 Product Intro
(1-10kVA) UPS are with all high frequency, pure online, double-conversion, intelligent features. They
are the perfect power security for file server, enterprise server, center server, mirco-computer,
concentrator, telecom system, data center and others that require high quality power protection. They
are widely applied to the many key business areas, such as post, finance, network, stock, railway, etc.
(1-10kVA) UPS are with the single-phase AC input and single-phase AC output. Each series UPS
includes standard and long backup models.
2.1.1 Model Meaning
UPS that the output power is less than 6kVA
"L" means long backup model. If there is no "L" symbol, it means standard model.
UPS that the output power is not less than 10kVA
"/B" means that the product can be used in the parallel system; "S" means standard model. If there is
no "S" symbol, it means long backup model.
2.1.2 Features
Intelligent RS232 communication
Through the RS232 standard data port and UPS power management software, it can realize the three
remote function between the computer and UPS, monitor the running and electrical data of UPS on the
computer, perform ON/OFF operation remotely and support SNMP network adaptor (external, connect
with UPS through RS232 port), which makes UPS be a network new member.
High input power factor
Adopt the advanced active PFC technology, which eases load in the power grid. It is the new generation
green power.

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High cost performance
Adopt many kinds of power conversations and high frequency PWM technologies, which is with high
efficiency, small volume, light weight, improves the running reliability and reduces cost.
Perfect protection
Equipped with the functions, such as output over-voltage protection, battery under-voltage protection,
input over-voltage protection, triple over-current protection, etc. and solve the problems of the high
frequency UPS, such as poor adaptability in the power grid and weak anti-impact ability.
Low mains input voltage
Adopt the independent rapid detection technology. When the mains input voltage is 120V, which is the
lower limit, the battery still doesn't discharge. Therefore, in the mains mode, all output power gets from
the power grid, which is to ensure the battery is still in the 100% energy storage status, reduce the
battery discharge times and prolong the working life.
2.2 Appearance
Figure2-1 Appearance of 1k VA (L)

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Figure2-2 Appearance of 2k VA (L)/ 3kVA (L)/ 6k VA (L)/10kVA
Figure2-3 Appearance of 6k VA /10k VA (S)

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2.2.1 Operation Panel
Figure2-4 Operation panel
Table2-1 The illustration of operation panel
No. Name Illustration
○,1 LCD Display the working status and setting of UPS.
○,2 "ON" button
When UPS is off, press and hold "ON" button for 1s to turn on UPS.
When UPS is on and works in the mains mode, press and hold "ON"
button for 3s to do the battery test. When UPS works in the battery mode,
press and hold "ON" button for 3s to silence the buzzer(cancel the mains
abnormal alarm).
In the set page, press and hold "ON" button for 1s to confirm the setting.
○,3 "OFF" button When UPS is on, press and hold "OFF" button for 1s to turn off UPS.
○,4 "SELECT"
button
Press "SELECT" button to
transfer the display information, such as
output voltage, output frequency, input voltage, input frequency, battery
voltage, inner temperature, load percentage, fault information, etc.
Press and hold "SELECT" button for 5s to enter the set page. Then press
"SELECT" button to transfer the setting information, such as PAR/SGL
mode(only available for parallel system), ECO/INV mode or the
inverting output voltage that is 208V/220V/230V/240V, and press "ON"
button to confirm the setting.

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LCD panel
Figure2-5 LCD panel
Table2-2 The illustration of LCD panel
No. Icon Illustration
1
It shows input voltage, input frequency, output voltage,
output frequency, load percent, temperature, fault code,
parameters or working mode, etc.
2
Mains icon
ON: Mains input is normal.
3
Bypass icon
ON: UPS works in the bypass mode.
4
Battery icon: four energy bars
1. When the energy bars light on from left to right again
and again, it indicates battery is in charge.
2. When all energy bars are on, it indicates battery is
fully charged.
3. When all energy bars flicker, it indicates battery is
over-voltage.
4. When all energy bars are off and the frame flickers,
it indicates battery is about to run out.

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No. Icon Illustration
5
Inverting icon
ON: Inverter is working.
6
Load icon: four energy bars
1. The energy bars from left to right indicates the load
level.
2. When all energy bars flicker, it indicates load is too
large.
7
Silence icon
ON: Buzzer is in the silence status.
8
ECO mode icon
ON: UPS works in the ECO mode.
9
Alarm icon
ON:UPS failure.
2.2.2 Rear Panel View
1kVA(L)
Figure2-6 Rear panel of 1k VA (L)

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2kVA(L)/3kVA(L)
Figure2-7 Rear panel of 2k VA (L)/3k VA (L)
6kVA/6kVA(L)
6kVA standard model

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Figure2-8 Rear panel of 6kVA
6k VA ( L) long backup model

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Figure2-9 Rear panel of 6k VA (L)
10kVA(/B) /10kVA(S)
Figure2-10 Rear panel of 10k VA (/B)

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Figure2-11 Rear panel of 10k VA ( S)
2.2.3 Intelligent Slot
RS485 and dry contact(optional)
The pin sequence and pin definition of RS485 and dry contact is as shown in Figure2-14 and Figure2-
15.
Figure2-12 RS485 and dry contact

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Figure2-13 Pin definition of RS485 and dry contact
The illustration of dry contact is as below:
1. CN1, CN2, CN3 determine that dry contact output signal is normal open or normal close. In
default, dry contact output signal is normal close, that is PIN1 connects with PIN2. If one route
signal needs to set to normal open, connect PIN2 with PIN3.
2. The requirements for input signal of dry contact: the voltage should be less than 60Vdc or 42Vac
RMS and the current should be less than 1.25A.
2.2.4 EPO Connector
When connecting two ports in the EPO connector together, UPS will close output. If it needs to recover
output, disconnect two ports in the EPO connector and power UPS off, and then restart UPS.
2.2.5 RS232 Communication
The corresponding pin relationship between RS232 port of UPS and RS232 port of PC is as shown in
Table2-3.
Table2-3 The corresponding pin relationship between RS232 port of UPS and RS232 port of PC
RS232 port of UPS RS232 port of PC
9 (3) 2 (receiving end)
6 (2) 3 (transmitting end)
7 (5) 5 (grounding end)