AEC IST6 User manual

UPS IST6
(200-600kVA) Series
User Manual
www.aecups.com

Foreword
IST6 Series (200K-600K) Modular UPS
User Manual
ii
All rights reserved ©Allis Electric Co., Ltd.
Foreword
Summaries
Thank you for choosing the IST6 series modular UPS!
This document gives a description of the IST6 series modular UPS, including the features,
performance, appearance, structure, working principles, installation, operation and maintenance.etc.
Please save the manual after reading, in order to consult in the future.
Suitable Model
IST6-200
IST6-300
IST6-400
IST6-500
IST6-600
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.

IST6 Series (200K-600K) Modular UPS
User Manual
Foreword
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Symbol
Description
Be care electric shock prompting.
Provides a tip that may help you solve a problem or save time.
Provides additional information to emphasize or supplement
important points in the main text.

Contents
IST6 Series (200K-600K) Modular UPS
User Manual
iv
All rights reserved ©Allis Electric Co., Ltd.
Contents
1 Safety Description.........................................................................................................................1
1.1 Safety Announcements.....................................................................................................................................1
1.1.1 Safety Instructions ..................................................................................................................................1
1.1.2 Use Announcements for Battery .............................................................................................................4
1.1.3 ESD Protection........................................................................................................................................5
1.1.4 Grounding Requirements........................................................................................................................5
1.1.5 Warning Label Setting.............................................................................................................................5
1.2 Operation and Maintenance Requirements ......................................................................................................5
1.3 Environment Requirements..............................................................................................................................7
2 Overview.........................................................................................................................................8
2.1 Product Intro.....................................................................................................................................................8
2.2 Features............................................................................................................................................................8
2.3 Work Principle................................................................................................................................................10
2.3.1 Work Principle Diagram........................................................................................................................10
2.3.2 Work Mode ...........................................................................................................................................10
2.4 Structure.........................................................................................................................................................12
2.4.1 Sturcture Layout....................................................................................................................................14
2.4.2 Power Module.......................................................................................................................................15
2.4.3 Bypass Module......................................................................................................................................17
2.4.4 System Control Box..............................................................................................................................18
2.5 Optional Accessory ........................................................................................................................................22
2.5.1 SNMP Card and Its Software................................................................................................................22
2.5.2 Parallel System Connection ..................................................................................................................25
2.5.3 Synchronous BSC .................................................................................................................................25

IST6 Series (200K-600K) Modular UPS
User Manual
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2.5.4 Battery Temperature Compensation......................................................................................................25
2.5.5 Surge Protection Device........................................................................................................................26
2.6 Alarm Function...............................................................................................................................................26
3 Installation....................................................................................................................................30
3.1 Installation Process.........................................................................................................................................30
3.2 Installation Preparation ..................................................................................................................................31
3.2.1 Installation Tools...................................................................................................................................31
3.2.2 Installation Environment.......................................................................................................................32
3.2.3 Installation Space..................................................................................................................................33
3.2.4 Input and Output Wire Selection...........................................................................................................33
3.2.5 Surge Protection Device........................................................................................................................35
3.2.6 Reverse Feedback Protection(Optional)................................................................................................35
3.3 Transportation and Unpacking .......................................................................................................................35
3.3.1 Transportation.......................................................................................................................................35
3.3.2 Unpacking.............................................................................................................................................37
3.4 Mechanical Installation ..................................................................................................................................38
3.4.1 UPS Installation ....................................................................................................................................38
3.4.2 Optional Accessory Installation ............................................................................................................42
3.5 System Wiring................................................................................................................................................43
3.5.1 IST6-200,IST6-300(Bottom wiring) ..................................................................................................43
3.5.2 IST6-200, IST6-300(Top wiring)........................................................................................................46
3.5.3 IST6-400, IST6-500, IST6-600..........................................................................................................50
3.6 Parallel System Connection ...........................................................................................................................54
3.7 System Check and Test...................................................................................................................................57
3.7.1 Check Electrical Connection.................................................................................................................57
3.7.2 UPS Test................................................................................................................................................57
3.7.3 Connect Load........................................................................................................................................58
4 Touch Screen Operation and Setting ......................................................................................59
4.1 Menu Structure...............................................................................................................................................59
4.2 Main Page ......................................................................................................................................................60

Contents
IST6 Series (200K-600K) Modular UPS
User Manual
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4.3 System Work Status Display ..........................................................................................................................61
4.4 Buzzer Control Function................................................................................................................................67
4.5 Monitor Function ...........................................................................................................................................68
4.5.1 Bypas Information ................................................................................................................................68
4.5.2 Mains Information ................................................................................................................................68
4.5.3 Battery Information...............................................................................................................................69
4.5.4 Power Module Information...................................................................................................................70
4.5.5 Inverter Information..............................................................................................................................71
4.5.6 Output Information ...............................................................................................................................71
4.6 Setting Management.......................................................................................................................................72
4.6.1 System Manage.....................................................................................................................................73
4.6.2 Battery Manage.....................................................................................................................................75
4.6.3 Mode Configuration..............................................................................................................................77
4.6.4 Function Configuration.........................................................................................................................79
4.6.5 Communication Setting.........................................................................................................................82
4.6.6 Debug Set..............................................................................................................................................83
4.6.7 Record Manage.....................................................................................................................................84
4.6.8 HMI Set.................................................................................................................................................84
4.6.9 Password Set.........................................................................................................................................85
4.7 Information Query..........................................................................................................................................86
4.7.1 Event log...............................................................................................................................................87
4.7.2 User Log ...............................................................................................................................................87
4.7.3 Device Information ...............................................................................................................................88
4.8 ON/OFF .........................................................................................................................................................90
5 Use and Operation ......................................................................................................................92
5.1 Use Announcements.......................................................................................................................................92
5.2 Operation Procedure.......................................................................................................................................92
5.3 UPS Start and Shutdown................................................................................................................................93
5.3.1 Check before Startup.............................................................................................................................93
5.3.2 UPS Startup...........................................................................................................................................93

IST6 Series (200K-600K) Modular UPS
User Manual
Contents
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5.3.3 UPS Shutdown......................................................................................................................................95
5.3.4 Switch to Bypass Mode Manually ........................................................................................................96
5.3.5 Switch to Maintenance Bypass Mode From Normal Output ................................................................96
5.3.6 Switch to Inverter Power Supply from Maintenance Bypass................................................................97
5.3.7 Emergency Power Off(EPO).................................................................................................................98
5.3.8 Emergency Power Off Recovery...........................................................................................................98
5.4 Parallel System Startup and Shutdown ..........................................................................................................98
5.4.1 Start Parallel System.............................................................................................................................98
5.4.2 Shutdown Parallel System ..................................................................................................................101
5.4.3 Emergency Power Off(EPO)...............................................................................................................102
6 Maintenance and Troubleshooting .......................................................................................103
6.1 Maintenance Guide ......................................................................................................................................103
6.1.1 Safety Precautions...............................................................................................................................103
6.1.2 Preventive Maintenance......................................................................................................................103
6.2 Battery Maintenance ....................................................................................................................................104
6.3 Announcements for Battery Replacement....................................................................................................104
6.4 Troubleshooting............................................................................................................................................105
6.4.1 Common Abnormal Phenomena Diagnosis ........................................................................................105
6.4.2 Emergency Dispose for System Fault .................................................................................................107
7 Package, Transportation and Storage....................................................................................108
7.1 Package ........................................................................................................................................................108
7.2 Transportation ..............................................................................................................................................108
7.3 Storage .........................................................................................................................................................108
A Technical Specifications .........................................................................................................109
B Physics Characters....................................................................................................................112
C Acronyms and Abbreviations................................................................................................114

IST6 Series (200K-600K) Modular UPS
User Manual
1 Safety Description
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1
1 Safety Description
This chapter introduces the safety announcements. Prior to performing any work on the UPS, please
read the user manual carefully to avoid human injury and device damage by irregular operations.
1.1 Safety Announcements
This section introduces the safety announcements that must be complied with and pay special
attention while installing, using, maintenance and other relative operations.
Before operating, please read the announcements and operation instructions in this section carefully,
which is to avoid accident.
The DANGER, WARNING, CAUTION in the manual are not all the safety announcements that you
must abide by, they are just the supplements for the safety announcements during operating.
Our Company does not undertake the responsibility caused by violating common safety operation
requirements or the safety standard of design, manufacture and use.
1.1.1 Safety Instructions
The input and output of the UPS is dangerous high voltage, once operate improperly, it may endanger
human safety. Please read this manual carefully before installing or operating, and pay attention to
the warning labels. Do not dismantle the case of the UPS unless authorized person.

1 Safety Description
IST6 Series (200K-600K) Modular UPS
User Manual
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All rights reserved ©Allis Electric Co., Ltd.
It is prohibited to touching any terminal or conductor that connected with grid circuit, or, it may
cause deadly danger.
The damaged device or device fault may cause electric shock or firing!
Before operating, please inspect the device and see if there is any damage or exist other danger.
Check if the external devices or circuit connection is safe.
Touching high voltage directly or through damp objects will lead to lethal risk.
During a lightning storm, it is strictly prohibited to perform high voltage and AC operation, as well as
in the tower or the mast. The atmosphere will generate a strong electromagnetic field in a lightning
storm. Therefore, in order to avoid equipment struck by lightning, lightning protection and grounding
system should be prepared in time.
If the output of the UPS cannot be half-wave rectification load or inductive load, such as
air-condition, hair drier, starter, electric drill, motor, daylight lamp, etc.

IST6 Series (200K-600K) Modular UPS
User Manual
1 Safety Description
All rights reserved ©Allis Electric Co., Ltd.
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Do not reversely connect the grounding wire and neutral wire, live wire and neutral wire, which will
cause short circuit.
It should be well grounded and the voltage between ground wire and neutral wire should be less than
5V.
Please do not put finger or tool into rotating fans to avoid endanger the human safety or damage the
device.
In case of fire, please use dry power fire extinguisher. If using liquid fire extinguisher, it may cause
electric shock.
Keep good ventilation! Ensure that the air inlet and outlet and fan unblocked.
The product is class C3 device. If it is used in the environment that includes all commercial, light
industry and industrial establishments other than those directly connected to a low-voltage mains that
supplies building used for residential purpose, it may cause wireless interference. User should take
actions to avoid the interference.

1 Safety Description
IST6 Series (200K-600K) Modular UPS
User Manual
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All rights reserved ©Allis Electric Co., Ltd.
When UPS is power off, there still exists dangerous voltage. It should affix warning labels away from
UPS location and the warning labels should include: 1. It supplies power for UPS. 2. Please
disconnect UPS before wiring.
1.1.2 Use Announcements for Battery
Please use specified battery. Non-specified battery will damage the UPS.
The charging voltage of different brand and different model battery is different. Before using, ensure
that the charging voltage of the UPS matches that of battery. If doubted, please consult the
manufacturer for support.
Battery operation must be done according to instructions, especially battery wiring. Irregular
operation will cause battery damage, even human injury.
It is prohibited to short circuit the anode and cathode of the battery. The battery wiring must be
tightened. It is strictly prohibited to touch any two wiring terminals of battery or the bare
terminals of wires simultaneously, or it may cause battery damage or human injury.
Prevent electrolyte leaking from battery. The metal objects and circuit board will be corroded by
the overflowing electrolyte and it will result in device damage and circuit board short circuit.
Keep the battery away from fire source and all device that easy cause spark to avoid danger or
unnecessary lose.

IST6 Series (200K-600K) Modular UPS
User Manual
1 Safety Description
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1.1.3 ESD Protection
To prevent human electrostatic damaging sensitive components (such as circuit board), make sure
that you wear a anti-static wrist strap before touching sensitive components, and the other end is well
grounded.
1.1.4 Grounding Requirements
The device must be grounded before wiring. The grounding terminal must be connected to earth.
When installing, the device must be grounded first. When dismantling, the grounding wire must
be removed at last;
Don't damage the grounding conductor;
The device must be connected to protection grounding permanently. Before operation, check the
electrical connection to ensure the device is grounded reliably.
1.1.5 Warning Label Setting
In order to avoid accident for the unwanted person gets close to the UPS or makes improper
operation, observe the following requirements while installing, maintaining or repairing.
Set warning marks where the switches are to avoid switching them on improperly.
Set warning signs or safety warning belt in the operation area, which is to avoid human injury or
device damage.
After maintenance, please pull out the key of the UPS and save it properly.
1.2 Operation and Maintenance Requirements
There exists high temperature and high voltage inside the UPS. Please comply with the relevant
safety regulations and operation procedures during installation, operation and maintenance to avoid
human injury or device damage. The safety precautions mentioned in the user manual are just as a
supplement to the local safety regulations.

1 Safety Description
IST6 Series (200K-600K) Modular UPS
User Manual
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All rights reserved ©Allis Electric Co., Ltd.
The related operation and wiring for the UPS should be performed by qualified professionals, and
ensure the electric installation accord with the electricity installation standards.
The installation and maintenance man should be trained and know about each safety announcements
and get the right operation method, and then, the installation, operation and maintenance can be done.
Mounting and dismantling power cables is prohibited when power on. Please switch off the power
switches before mounting or dismantling power cables. Before connecting, make sure the cable
connection, cable labels are in accordance with the actual installation.
Only authorized professionals are allowed to open the UPS! The input and output of the UPS are
dangerous high voltage. Touching high voltage will lead to lethal risk.
Before maintenance, please disconnect theAC power and battery to isolate the power input. It is
better to measure the input terminals of UPS by a voltmeter to ensure the input power is
disconnected and in a safe condition.
Even if all external powers are disconnected, there still exists residual electric charge on the
capacitance inside the UPS, and the output terminals may exists high voltage which may
endangers human life. It is necessary to set the UPS aside for enough time (≥10 min) to release
all charge before opening the UPS chassis.
The battery circuit isn't isolated with AC input. There may exist dangerous voltage between
battery terminals and grounding terminals. Battery group exists dangerous high voltage. Pay
attention to the insulation when installing and using the battery.
Do not wear conductive objects, such as watches, bracelets and rings during operating.
Drilling holes on the cabinet is prohibited! Inappropriate drilling will damage the components inside
the UPS. Metal debris generated by drilling will lead to circuit board short circuit.

IST6 Series (200K-600K) Modular UPS
User Manual
1 Safety Description
All rights reserved ©Allis Electric Co., Ltd.
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Changing the UPS configuration, structure or assembly will affect the performance of the UPS. If user
needs to do like this, please consult the manufacturer in advance.
1.3 Environment Requirements
Do not put the UPS in the environment where has inflammable, explosive gas or smog, do not do any
operation in this environment.
It's dangerous to operate UPS in the explosive environment, please strictly observe the environment
requirements in the user manual when using and storing UPS.
The environment requirements of UPS are as follows.
Meet the UPS operation specification (Operating temperature: 0℃～40℃, relative humidity:
0%～95%).
Keep good ventilation and far away from water sources, heat sources and inflammable and
explosive objects.
The altitude should not exceed 1000m. If the altitude exceeds 1000m, it should reduce the rated
power according to GB/T3859.2.
Please avoid using UPS in the following environment for a long time.
−The place where has direct sunshine or near a heat source.
−The place where has metallic conductive dust.
−The place where has dust, volatile gas, corrosive material or high salt.

2 Overview
IST6 Series (200K-600K) Modular UPS
User Manual
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2 Overview
This chapter mainly introduces the UPS features, work principle, work mode, operation panel,
appearance, optional accessory, alarm function, etc.
2.1 Product Intro
IST6 series UPS is modular online double-conversion UPS. They are made up of cabinet, power
module, bypass module, system control box and distribution unit. The system is designed in module
and user can online add /decrease or replace the power module conveniently and do not worry about
the normal operation of system. The system is high performance sine-wave UPS that special designed
for the network computer room and precision instrument of financial, communication, insurance,
transportation, tax, army, security, energy source, education, government, enterprise, etc.
2.2 Features
Hot swappable
The power module adopts none-principle-subordinate parallel control technique, each power module
is independent and do not need to match each other strictly. They can be put into use or exit online at
will, which achieves the online hot maintenance. The system has high adaptability, availability,
expandability and low cost.
Three-level inversion technology
Adopts three-level inversion technology, which makes the quality of output voltage wave better and
the efficiency of whole UPS higher.
Completely digitalized DSP control
Adopts digitalized DSP to control the inverting, phase synchronization, output current-sharing, logic
of the power unit, which is with high precision, high speed and perfect whole system performance.

IST6 Series (200K-600K) Modular UPS
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Energy conservation and high efficiency
Adopts advanced PFC control technology, the input power factor is greater than 0.99, which greatly
improves the use ratio of electric energy and reduces the load of power grid, and save the cost of
power distribution. The size of whole UPS is small, and the weight is light, calorific value is small,
which enhances the use ratio of environment and decrease the investment cost.
Smart fan speed control
The fan speed is adjusted automatically in accordance with the load status, which prolong fan life and
reduce noise.
ECO energy conservation mode design
The UPS is designed with ECO energy conservation mode. When the user power grid is good, if the
UPS operating in this mode, the bypass prior to output, and the efficiency can be 99%.When the
bypass voltage or frequency out of normal range and cannot satisfy the user’s power supply
requirement, it will switch to inverter output, and this guarantee the reliability of power supply and
also, save energy.
Manual maintenance bypass design
It designs manual maintenance bypass channel to ensure the UPS supply power for load while
maintenance, which greatly improve the system operation reliability and maintainability.
Reliable EMC performance
Pass the authority institution and professional test on EMC, including conducting disturbance,
radioactive disturbance, conducting anti-disturbance, radioactive anti-disturbance, power falling,
mass impulse, static discharging, surge, etc. The excellent EMC characteristics can completely filter
each power grid interference, and also, decrease and eliminate the interference of UPS itself
effectively.
7 inch touch screen display
With 7 inch touch screen display, the operation is simple and convenient, which is convenient to daily
manage and maintain the UPS. It can display the running parameters and running status of UPS and
each power unit, and record the history event and alarm information. It can store 10000 pieces of
information at most.

2 Overview
IST6 Series (200K-600K) Modular UPS
User Manual
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2.3 Work Principle
2.3.1 Work Principle Diagram
Work principle diagram of the UPS is as shown in Figure2-1.
ACDC DCAC
DC
DC
Maintenance bypass
Bypass input
Mains input
Battery input
Bypass module
Power module 1
ACDC DCAC
DC
DC
Power module N
Output
Figure2-1 Work principle diagram
2.3.2 Work Mode
There are 4 work modes of the IST6 series modular UPS: normal mains power supply mode, battery
power supply mode, bypass power supply mode and maintenance bypass power supply mode.
Normal mains power supply mode
When the mains normal, AC power is transformed to DC power by PFC, and supply power for
inverter. While rectifying the AC power into DC power, the rectifier eliminates the abnormal noise
wave, noise and unstable frequency, and make the inverter provide stable and clean power for load.
The specific work process is as follows.
When mains normal, the rectifier, inside the power unit, rectify the mains into anode and cathode DC
voltage, and store energy in DC electrolysis for inverter to use. The inverter absorbs energy from DC
electrolysis and inverts to output stable 220Vac voltage. When the system detects the inverter normal,
it will supply the inverting voltage to load.

IST6 Series (200K-600K) Modular UPS
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Battery power supply mode
When mains abnormal, system will switch to battery input, the Boost circuit promotes the battery
voltage to a certain value and then supply the DC power to the inverter, that makes the AC output
without interruption phenomenon and then protect the load. The specific work process is as follows.
When mains abnormal at any time, the rectifier will switch to battery input immediately to maintain
the voltage of DC electrolysis, which guarantee the inverter without power down. Before battery
discharge completely, if mains recovers, the rectifier will switch to mains input and charge battery at
the same time. During the switch between grid power supply and battery power supply, the inverter
output cannot power down.
In battery power supply mode, if mains does not recover normal all the time, and the battery energy is
running out, the UPS will send sound & light alarm, and stop working at the max. discharge point,
and long beeps to alarm. At that time, the load will power down.
Bypass power supply mode
When system abnormal (such as over-temperature, short-circuit, output voltage abnormal or overload)
and exceed the bear range, the inverter will shut down to avoid damage automatically. If mains still
normal at this time, it will turn to bypass to supply power for load. The specific work process is as
follows.
If the inverter circuit fault or inverter overload and exceed the bear range, the UPS will turn to bypass
to output. During bypass power supply, if fault or overload removed, the UPS will start inverter and
begin to supply power for load. When the load is serious overload and exceeds the bypass bear range,
the UPS will close the bypass output, and it will cause user load power down. When load fault or
short circuit, the UPS will switch to bypass to supply power from inverter. If the short-circuit is
serious, the UPS mains breaker and bypass breaker may trip out. After suffering the short-circuit fault,
UPS will try to restart. If the short-circuit is removed, the UPS will switch to inverter; if the fault is
not removed, the UPS will try to restart for 5 times. 5 times later, the UPS will turn to fault protection.
At this time, it needs to power off or press the touch screen to shut down the UPS, and restart the
UPS, and then, it will recover normal work.
Maintenance bypass power supply mode
When the UPS needs to be maintained and the power supply for load cannot be interrupted, user can
shut down the inverter and make the UPS works in bypass status, then switch on the maintenance
bypass breaker and switch off the mains pint breaker and bypass power supply breaker. During the

2 Overview
IST6 Series (200K-600K) Modular UPS
User Manual
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transforming of manual maintenance bypass, AC power is supplied for load by maintenance bypass
breaker. At this time, the inner UPS has no electricity, maintainer can perform the maintenance safely.
2.4 Structure
IST6 series modular UPS is mainly made up of cabinet, operation panel, power module, bypass
module, system control box, distribution unit, etc. The appearance of IST6 series modular UPS is as
shown in Figure2-2, Figure2-3.
Figure2-2 Appearance of IST6200, IST6300
Figure2-3 Appearance of IST6400, IST6500, IST6600

IST6 Series (200K-600K) Modular UPS
User Manual
2 Overview
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Operation Panel
Figure2-4 Operation panel IST6 IST6 series(200K-600K)
Table2-1 Illustration for operation panel
NO.
Name
Illustration
○
1
Touch screen
Human-machine interactive interface
○
2
AC/DC indicator
On (Green): the rectifier work normally.
On (Red): the rectifier work abnormally.
○
3
DC/AC indicator
On (Green): the inverter work normally.
On (Red): the inverter work abnormally.
○
4
BYP. indicator
On (Green): bypass output
On (Red): bypass abnormal
○
5
BATT. LOW indicator
On (Red): battery low-voltage
○
6
OVERLOAD indicator
On (Red): overload
○
7
ON combination button
Press the two buttons for 3s, the system will power on.
○
8
OFF combination button
Press the two buttons for 3s, the system will power off.
○
9
EPO emergency power off button
Press the button, the system will power outage
immediately.