AEC IST3-J User manual

UPS IST3-J
1 - 10 kVA
User Manual
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User Manual UPS IST3-J Foreword
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Foreword
Thank you for choosing the uninterruptible power system AEC UPS IST3-J!
This document gives a description of the (1-10kVA) series UPS.
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 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.
Provides additional information to emphasize important points.

Contents User Manual UPS IST3-J
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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
1.2 Operation and Maintenance Requirements ...................................................................................................... 3
1.3 Working Environment Requirements ............................................................................................................... 3
2 Overview ......................................................................................................................................... 5
2.1 Product Intro..................................................................................................................................................... 5
2.1.1 Model Meaning ....................................................................................................................................... 5
2.1.2 Features ................................................................................................................................................... 5
2.2 Appearance and Structure ................................................................................................................................. 6
2.2.1 appearance............................................................................................................................................... 6
2.2.1 Operation Panel ....................................................................................................................................... 8
2.2.2 Rear Panel ............................................................................................................................................. 10
2.3 Communication .............................................................................................................................................. 11
2.4 Intelligent Slot ................................................................................................................................................ 11
2.5 EPO Connector ............................................................................................................................................... 12
2.6 Working Principles ......................................................................................................................................... 13
3 Installation.................................................................................................................................... 14
3.1 Unpacking and Checking ............................................................................................................................... 14
3.2 Cable and Breaker Selection .......................................................................................................................... 14
3.2.1 Cable Selection ..................................................................................................................................... 14
3.2.2 Input Breaker Selection ......................................................................................................................... 14
3.3 Install UPS ..................................................................................................................................................... 15

User Manual UPS IST3-J Contents
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3.4 Intelligent Slot Installation ............................................................................................................................. 16
3.5 Electrical Connection ..................................................................................................................................... 17
4 Operation and Maintenance ..................................................................................................... 20
4.1 Check Before Startup ..................................................................................................................................... 20
4.2 Startup Operation ........................................................................................................................................... 20
4.2.1 1kVA(L), 2kVA(L), 3kVA(L) ................................................................................................................ 20
4.2.2 6kVA(L), 10kVA (/B) ............................................................................................................................ 21
4.3 Shutdown Operation ....................................................................................................................................... 21
4.3.1 1kVA(L), 2kVA(L), 3kVA(L) ................................................................................................................ 21
4.3.2 6kVA(L), 10kVA (/B) ............................................................................................................................ 21
4.4 Periodic Preventative Maintenance ................................................................................................................ 22
4.5 Battery Maintenance ...................................................................................................................................... 22
4.6 Troubleshooting .............................................................................................................................................. 22
A. Technical Specifications .................................................................................................................................. 26

User Manual UPS IST3-J 1 Safety Description
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1 Safety Description
This chapter mainly describes the safety announcements. Prior to performing any work on the UPS,
please read the 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 the UPS, please read the announcements and operation instructions in this
section carefully to avoid accident.
The promptings in the user manual, such as "Danger", "Warning", "Caution", etc. DO NOT
include all safety announcements. They are just the supplement of safety announcements
when operation.
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 the UPS. When using UPS, please
strictly comply with all warnings and operation instruments on the UPS and in the user manual.

1 Safety Description User Manual
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No liquid or other object is allowed into the UPS.
The UPS is a class A product. When it is applied to residential building, additional measures
should be took to prevent wireless interference.
Do not connect unbalance load, half-wave rectification load or inductive load to the output of
the 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.
UPS must be well grounded.
1.1.2 Battery Announcements
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.
 Don't put tools or other conductive objects on the battery.

User Manual UPS IST3-J 1 Safety Description
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 It's prohibited to connect the anode 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 charging power first.
 Do not use the battery with different type, different model or different manufacturer
together.
 Battery should be kept away from fire source or any electrical equipment that may easily
cause spark to avoid human injury.
 Don't open or destroy the battery. The electrolyte in the battery includes some dangerous
objects, such as strong acid, which will be harmful to skin and eyes. If touching the
electrolyte by accident, please clean it by a lot of water immediately and then see the
doctor.
 The waste battery should be disposed according to the local regulations.
1.2 Operation and Maintenance Requirements
Only authorized professionals are allowed to open the UPS chassis, or it may cause electric
shock and the caused UPS fault is out of the guarantee range.
 If UPS needs to be moved, rewired or maintained, disconnect all electrical connection,
such as AC power, battery power, etc. to isolate power input. Do not do any work on the
UPS until it 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 to avoid device
damage or human injury.
1.3 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.

1 Safety Description User Manual
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 Generally, the working temperature of the UPS is -5℃～+40℃ and the relative humidity is
0%RH ～95%RH 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 the 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 the 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 needs to decrease
the rated power according to GB3859.2-93 to use.

User Manual UPS IST3-J 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
The (1-10kVA) series 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.
2.1.1 Model Meaning
UPS that the output power is less than 10kVA
The "L" means long backup model. If there is no "L" symbol, it means standard model.
For the 2-3kVA standard model UPS, it also includes a UPS and a battery box.
For 6kVA(L) UPS, it just has long backup model.
UPS that the output power is not less than 10kVA
The "L" means long backup model. If there is no "L" symbol, it means standard model.
The“/B”means it can be used in parallel model.If without “/B”,it means the UPS can be used
In single mode.
The 10kVA(/B) UPS just has long backup model.
2.1.2 Features
Intelligent RS232 communication
By 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 the UPS on the computer, perform ON/OFF operation remotely and it also supports SNMP
network adaptor (external, connect with UPS through RS232), which makes UPS be a
network new member.

2 Overview User Manual
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High input power factor
Adopt advanced active PFC technology to ease the load to power grid. It is the new generation
green power.
High cost performance
Adopt many kinds of power conversations and high frequency PWM technologies, which
make the UPS with high efficiency, small volume, light weight, and improves the running
reliability and reduces cost.
Perfect protection
With the protection for output over-voltage, battery under-voltage, input over-voltage triple
over-current, etc. and solved the problems of bad adaptability for power grid and weak shock
resistance.
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 still in the 100% energy
storage status, and at the same time, reduce the battery discharge times and prolong the
working life.
2.2 Appearance and Structure
2.2.1 appearance
Figure2-1 UPS appearance
For 2-3kVA standard backup model, besides UPS host, we will provide a battery box, for 1
kVA(L), 2-3kVA(L) long backup model, the battery box can be provided according to use
needs. The corresponding battery box appearance is as shown in Figure2-2.

User Manual UPS IST3-J 2 Overview
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Figure2-2 Battery box appearance of 2-3kVA
For 6kVA(L), 10kVA(/B) model, the battery box can be provided according to use needs,
corresponding battery box appearance is as shown in Figure2-3.
Figure2-3 Battery box appearance of 6kVA(L), 10kVA(/B)
The battery box amount of long backup model is different on the basis of required backup time. The
relationship between battery box and UPS is as shown in Table2-1.
Table2-1 Relationship between UPS and battery box
UPS model Battery box model
2kVA 48VDC
2kVA(L) 72VDC
3kVA 72VDC
3kVA(L) 96VDC
6kVA(L)
192VDC 10kVA
10kVA (/B)

2 Overview User Manual
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2.2.1 Operation Panel
Figure2-4 Operation panel
Table2-2 The illustration of operation panel
No. Name Illustration
○,1 LCD Shows the working status, battery backup capacity and fault alarm,
alarm.
○,2 " " button
 Short press “ ” button, the LCD shows the output voltage, output
frequency, input voltage, input frequency, battery voltage, UPS
temperature, output load percentage, fault information, etc.
circularly.
 Long press “ ” button for 5s, the LCD will enter setting page. Short
press “ ” to select the setting command, long press “ ” button
to
confirm the command.
○,3 " " button When UPS is on, long press " " button for 1s, the UPS will be turned
off.
○,4 " " button
 When UPS off, long press “ ” button for 1s, the UPS starts.
 When UPS on, at mains mode, long press “ ” button for 3
s, the
UPS start to perform battery test.
 At battery mode, long press “
” button for 3s to mute the buzzer
(cancel mains abnormal alarm).

User Manual UPS IST3-J 2 Overview
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LCD panel
Figure2-5 LCD panel
The illustration for the LCD panel is as shown in Table2-3.
Table2-3 The illustration of LCD panel
NO. Name Illustration
○,1
Running
status display
area
Shows the input, output, temperature, fault type and setting, etc.
of the UPS.
○,2 Output status
display area
Shows the load capacity, battery capacity, fault indication and
buzzer silence, etc.
○,3 Work mode
display area
Shows the UPS work status: mains inverter( ), bypass power
supply( ), battery inverter( ), ECO ( )
Fault model and corresponding dispose please see Table4-2.

2 Overview User Manual
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2.2.2 Rear Panel
UPS 1Kva (L)
Communication port
Over-current
protector
Mains input socket
Intelligent slot(optional)
USB
Cover
SNMP
RS485 and dry
contact
Battery expansion port for long
delay model (Standard model is optional)
Ethernet E C R
EPO
Output socket
UPS 2-3Kva (L)
Communication port
Intelligent slot(optional) Cover
SNMP
RS485 and dry
contact
Ethernet E C R
USB
Mains input socket
Battery expansion port for long
delay model (Standard model is optional)
Output socket Over-current
protector
EPO
CIRCUIT PROTECTOR
AC INPUT
CIRCUIT PROTECTOR
AC INPUT
CIRCUIT PROTECTOR
AC INPUT
CIRCUIT PROTECTOR
AC INPUT
CIRCUIT PROTECTOR

User Manual UPS IST3-J 2 Overview
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UPS 6Kva (L), 10Kva (/B)
USB
Cover
SNMP
RS485 and dry
contact
Ethernet E CR
Intelligent slot
(optional)
EPO
Communication port
Parallel port (just for
parallel model)
Output socket
Input breaker
Battery expansion port
Surge protection grounding
wire
Over-current
protector Wire terminal
2.3 Communication
1kVA(L), 2kVA(L), 3kVA(L),6kVA(L), 10kVA(/B) adopt RS232 series port to communicate with PC. The
corresponding pin relationship of RS232 port between UPS and PC is as shown in Table2-4.
Table2-4 The corresponding pin relationship of RS232 port between of UPS and PC
RS232 port of UPS RS232 port of PC
9 (3) 2 (receiving end)
6 (2) 3 (transmitting end)
7 (5) 5 (grounding end)
2.4 Intelligent Slot
RS485 and dry contact (optional)
The pin sequence and pin definition of RS485 and dry contact is as shown in Figure2-6 and
Figure2-7.

2 Overview User Manual
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Figure2-6 RS485 and dry contact
Figure2-7 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.
2.5 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.

User Manual UPS IST3-J 2 Overview
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2.6 Working Principles
When the mains is normal, the input of the UPS is converted into the ±360V steady DC voltage
through PFC, which supplies power for DC/AC inverter to output steady 220V AC and charges
battery at the same time. When the mains is abnormal, the battery will boost into the ±360V
DC voltage for DC/AC inverter through DC/DC.
The working principles of the (1-10kVA) series UPS is as shown in Figure2-8, Figure2-9. The
DC/AC inverter adopts half-bridge structure and the DC/DC boost adopts the quasi push-pull
circuit or boost circuit. PFC is the active power factor correction circuit, CHARGER is
completely isolated charger.
Figure2-8 Work principle of 1-3kVA(L)
Figure2-9 Work principle of 6kVA(L), 10kVA(/B)

3 Installation User Manual
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3 Installation
This chapter mainly describes the UPS installation, including unpacking and checking, installation
preparation, electrical connection, etc.
3.1 Unpacking and Checking
Unpacking the UPS and check the following items:
 Inspect the UPS appearance and check if there is any shipping damage, if any damage
is found, report it to the carrier immediately.
 Check the delivery list to see if the types of accessories are complete and correct. If there
is any discrepancy, contact the distributor immediately.
3.2 Cable and Breaker Selection
3.2.1 Cable Selection
For the selection of the cross-sectional area of AC input wire, AC output wire and battery wire
of the UPS, please refer to Table3-1 for the corresponding recommended value and choose
upwards.
Table3-1 The recommended cross-sectional area of wire
Cross-sectional area (mm2) 1 1.5 2.5 4 6 10 16 25
Current-
carrying
capacity (A)
Rubber (25
℃
) 8 12 20 28 42 70 96 125
Plastic (25
℃
) 6 9 15 20 30 50 64 100
3.2.2 Input Breaker Selection
Add a breaker (It's recommended that the breaker is with feedback protection and bipolar
disconnection function) or a power distribution box at the front of the input wire of the UPS,
which matches with the UPS power, to isolate the mains. Considering the charging power of
the UPS and the transient current impact when power on, the current of the selected breaker
should be 1.5～2 times of the max. input current of UPS. Besides, the selected breaker cannot