AEC UPS IST7 User manual

UPS IST7
10 - 40 kVA
User Manual

Foreword
UPS IST7 (10-KVA-40KVA)
User Manual
ii
Foreword
Thank you for choosing the Uninterruptible Power System UPS IST7 AEC!
This document gives a description of the IST7 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, 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.
Provides additional information to emphasize or supplement
important points in the main text.

IST7 (10kVA-40kVA)
User Manual Contents
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Contents
1 Safety Description......................................................................................................................... 1
1.1 Safety Announcements ..................................................................................................................................... 1
1.1.1 Safety Instructions .................................................................................................................................. 1
1.1.2 Use Announcements for Battery ............................................................................................................. 2
1.1.3 Anti-Static Protection .............................................................................................................................. 3
1.2 Operation and Maintenance Requirements ...................................................................................................... 3
1.3 Environment Requirements .............................................................................................................................. 3
2 Overview ......................................................................................................................................... 5
2.1 Product Intro..................................................................................................................................................... 5
2.1.1 Features ................................................................................................................................................... 5
2.1.2 Appearance .............................................................................................................................................. 6
2.1.3 Communication ....................................................................................................................................... 9
2.1.4 Fittings Illustration ................................................................................................................................ 17
2.2 Work Principle ................................................................................................................................................ 17
2.2.1 Work Principle Diagram........................................................................................................................ 18
2.2.2 Work Mode ........................................................................................................................................... 19
3 Installation.................................................................................................................................... 23
3.1 Announcements .............................................................................................................................................. 23
3.2 Installation Preparation .................................................................................................................................. 23
3.2.3 Install Space .......................................................................................................................................... 24
3.2.4 Select Breaker & Wires ......................................................................................................................... 24
3.2.5 Select Input Breaker .............................................................................................................................. 25
3.2.6 Select Wires .......................................................................................................................................... 27
3.3 Transport and Unpacking ............................................................................................................................... 25

Contents
IST7 (10kVA-40kVA)
User Manual
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3.3.1 Transport ............................................................................................................................................... 25
3.3.2 Unpacking ............................................................................................................................................. 25
3.4 Mechanical Installation ................................................................................................................................ 327
3.5 Electrical Connection ..................................................................................................................................... 28
3.5.1 UPS Wiring Operation .......................................................................................................................... 28
3.5.2 Wiring Between UPS and External Battery .......................................................................................... 31
3.5.3 Wiring of Parallel System ..................................................................................................................... 33
4 Touch Screen Operation ............................................................................................................ 37
4.1 Menu Hierarchy ............................................................................................................................................. 37
4.2 Main Page ...................................................................................................................................................... 38
4.2.1 Icon Meaning ........................................................................................................................................ 38
4.2.2 Working Status ...................................................................................................................................... 39
4.2.3 Bypass Information Page ...................................................................................................................... 41
4.2.4 Mains Informaiton Page ........................................................................................................................ 42
4.2.5 Battery Information Page ...................................................................................................................... 42
4.2.6 Output Information Page ....................................................................................................................... 43
4.3 Login Page ..................................................................................................................................................... 43
4.4 Information Management Page ...................................................................................................................... 44
4.4.1 Run Information Page ........................................................................................................................... 61
4.4.2 History Record Page ............................................................................................................................. 46
4.4.3 User Log Page ....................................................................................................................................... 47
4.4.4 Device Infomation Page ...................................................................................................................... 647
4.5 Setting Management Page .............................................................................................................................. 48
4.5.1 System Manage Page ............................................................................................................................ 48
4.5.2 Battery Management Page .................................................................................................................... 52
4.5.3 Battery Test Page .................................................................................................................................. 55
4.5.4 Dry Contact Page .................................................................................................................................. 55
4.5.5 Communicaiton Setting Page ................................................................................................................ 57
4.5.6 HMI Setting Page .................................................................................................................................. 58
4.5.7 Password Setting Page .......................................................................................................................... 58

IST7 (10kVA-40kVA)
User Manual Contents
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4.5.8 Device Configuration Page ................................................................................................................... 59
4.5.9 Dedust Setting Page .............................................................................................................................. 62
4.5.10 Record Manage Page .......................................................................................................................... 62
4.6 Current Fault Page .......................................................................................................................................... 64
4.7 Buzzer Control ............................................................................................................................................... 65
4.8 ON\OFF Operation ......................................................................................................................................... 66
5 Use and Operation ...................................................................................................................... 84
5.1 Check Before Startup ..................................................................................................................................... 67
5.2 Startup Operation ........................................................................................................................................... 67
5.3 Shutdown Operation ....................................................................................................................................... 68
5.4 Parallel System Operation .............................................................................................................................. 68
5.4.1 Start Parallel System ............................................................................................................................. 68
5.4.2 Shut Down Parallel System ................................................................................................................... 69
5.4.3 Exit Parallel System .............................................................................................................................. 69
5.5 Periodic Preventative Maintenance ................................................................................................................ 69
5.6 Battery Maintenance ...................................................................................................................................... 69
5.7 Troubleshooting .............................................................................................................................................. 70
5.7.1 Common Fault ...................................................................................................................................... 70
6 Package, Transportation and Storage ...................................................................................... 75
6.1 Package .......................................................................................................................................................... 75
6.2 Transportation ................................................................................................................................................ 75
6.3 Storage ........................................................................................................................................................... 75
A Technical Specifications ........................................................................................................... 76

UPS IST7 (10KVA-40KVA)
User Manual 1 Safety Description
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1 Safety Description
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 to avoid accident.
The DANGER, WARNING, CAUTION, etc. 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
There exists high temperature and high voltage inside the UPS. During using, please strictly
comply with all warnings and operation instruments on the UPS and in the user manual.

1 Safety Description
UPS IST7 (10KVA-40KVA)
User Manual
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The UPS is class C3 device. If it is used in residential purpose, it may cause wireless
interference. User should take actions to avoid the interference.
 No liquid or other objects are allowed to enter the UPS.
 UPS must be well grounded.
 In case of fire, please use dry power fire extinguisher. If using liquid fire extinguisher, it
may cause electric shock.
1.1.2 Use Announcements for Battery
Please use specified battery. Non-specified battery will damage the UPS.
 Only authorized professional can replace battery. Do not wear conductive objects, such
as watches, bracelets and rings during operating. Wear rubber shoes and gloves and use
tools with insulated handle.
 Don't put tools or other conductive objects on the battery.
 It is prohibited to short the positive pole and negative pole of the 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 other 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 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.

UPS IST7 (10KVA-40KVA)
User Manual 1 Safety Description
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1.1.3 Anti-Static Protection
The static generated by human bodies may damage the electrostatic-sensitive components
on PCB. Before touching the sensitive component, please wear anti-static rings and well
connect the other end of the anti-static rings to ground.
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 exist 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 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.
 Do not use the UPS in the place where has direct sunshine, rain or wet.
 The normal work temperature of UPS is -5℃~40℃, relative humidity: 0%-95%, with no
condensation (recommended work temperature is 20℃~25℃, humidity is about 50%).

1 Safety Description
UPS IST7 (10KVA-40KVA)
User Manual
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 Put the 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 UPS, which will reduce the service life of inner components and even
affect the life span of the UPS.
 The UPS must be used below 2000m. If the altitude exceeds 2000m, it needs to decrease
the rated power according to IEC62040-3: 2011 to use.

UPS IST7 (10KVA-40KVA)
User Manual 2 Overview
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2 Overview
2.1 Product Intro
IST7 series UPS is whole high frequency, pure online, double-conversion, smart product. The
system is perfect power security for file server, enterprise server, center server, micro-
computer, concentrator, telecom system, data center and others that require high quality
power protection. They are widely used in many key business areas, such as post, finance,
network, stock, railway, etc.
2.1.1 Features
Completely digitalized smart control
The UPS support various input and output mode, such as 33/31 and 11 (just for IST7 series
10kVA-20kVA) mode UPS. The UPS can monitor the grid frequency (50Hz/60Hz) and self-
adapt the frequency. The output voltage can be set to 220V/230V/240V, which makes the use
more flexible.
Energy conservation and high efficiency
Adopts three-level inverter technology and PFC control technology, the output voltage wave
is perfect and the whole efficiency can be 96%, 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.
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 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, which guarantee the reliability of power supply
and also, save energy.

2 Overview
UPS IST7 (10KVA-40KVA)
User Manual
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Low mains input voltage
Adopt the independent rapid detection technology. When output load is small, even the
battery voltage is 80V, which is the mains low limit, the battery still doesn't discharge.
Therefore, in the mains mode, all output power gets from the grid, which is to ensure the
battery in 100% energy storage status, and at the same time, reduce the battery discharge
times and prolong the service life.
2.1.2 Appearance
Appearance of IST7 (touch screen)
Operation panel
 Touch screen
Operation panel

UPS IST7 (10KVA-40KVA)
User Manual 2 Overview
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Illustration for touch screen operation panel
No. Name Illustration
Illustration for operation panel
Touch screen display Shows the working status and system setting.
AC/DC indicator
On (green): rectifier works normally;
On (red): rectifier abnormal.
DC/AC indicator
On (green): inverter works normally;
On (red): inverter abnormal.
BYP. indicator
On (green): bypass output;
On (red): bypass abnormal.
BATT. LOW indicator On (red): battery is low-voltage.
OVERLOAD indicator On (red): output is overload or overload protection.
Buttons operation instructions
"BATT. Start" button Press "BATT. Start" button for 7s, the system will build the
aux power.
"ON" combination button Press a couple "ON" buttons for 1s at the same time, the
system will power on.
"OFF" combination
button
Press a couple "OFF" buttons for 1s at the same time, the
system will power off.
EPO emergency power
off button
Press the button, the system will power outage
immediately.

2 Overview
UPS IST7 (10KVA-40KVA)
User Manual
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Rear panel
Structure of 10/15/20kVA rear panel
Structure of 30kVA rear panel

UPS IST7 (10KVA-40KVA)
User Manual 2 Overview
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Structure of 40kVA rear panel
The wiring terminal of 33 mode, 31 mode and 11 mode have a little different. For the detail of the wiring
terminal of each mode please see 3.5.1UPS Wiring Operation.
The gate controlled switch release automatically when the maintenance breaker cover is
removed and closes automatically when the cover is locked back.
2.1.3 Communication
The supported communication method of this series UPS include RS485, parallel kit,
communication dry contact, RS485+relay card, protocol transfer card and SNMP card.
Communication method correspondence with hardware port
Communication way Communication port
RS485 RS485
Dry contact Dry contact 1: output dry contact;

2 Overview
UPS IST7 (10KVA-40KVA)
User Manual
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Communication way Communication port
Dry contact 2: input dry contact (EPO+IN. 1)
Communication method correspondence with hardware port (optional)
Communication way Sketch map Communication port
Parallel kit (optional) Parallel port
RS485+relay card (optional) Slot 2 (optional)
Protocol transfer kit
(optional)
Slot 1/Slot 2 (optional)
SNMP card (optional)
RS485
The UPS adopt RS485 series port to communicate with PC.
The corresponding pin relationship of RS485 port between of UPS and PC
RS485 port of UPS RS485 port of PC
A A (+)

UPS IST7 (10KVA-40KVA)
User Manual 2 Overview
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RS485 port of UPS RS485 port of PC
B B (-)
The standard RS485 communication ports of rear panel cannot communicate normally when slot 2 is
used.
Dry Contact
Dry contact position of 10-20KVA
Dry contact position of 30-40KVA

2 Overview
UPS IST7 (10KVA-40KVA)
User Manual
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The dry contact position of IST7 series (30kVA-40kVA) is the same, above we take IST730 as an
example to illustrate.
Relay dry contact capacity is 277Vac/30VDC/10A, relay coil voltage is 12V.
Dry contact functions illustration
No. Silk-screen Function illustration Remarks
Dry
contact
1
OUT.1
NC Trigger action when signal is valid: NO and
COM is connect, which disconnect with
NC. The signal is settable and refers to the
note for detail. Default is mains abnormal.
NC: close
normally;
NO: open
normally;
COM:
common port.
NO
COM
OUT.2
NC Trigger action when signal is valid: NO and
COM is connect, which disconnect with
NC. The signal is settable and refers to the
note for detail. Default is bypass abnormal.
NO
COM
OUT.3
NC Trigger action when signal is valid: NO and
COM is connect, which disconnect with
NC. The signal is settable and refers to the
note for detail. Default is battery abnormal.
NO
COM
OUT.4
NC Trigger action when signal is valid: NO and
COM is connect, which disconnect with
NC. The signal is settable and refers to the
note for detail. Default is output abnormal.
NO
COM
OUT.5
NC Trigger action when signal is valid: NO and
COM is connect, which disconnect with
NC. The signal is settable and refers to the
note for detail. Default is overload alarm.
NO
COM

UPS IST7 (10KVA-40KVA)
User Manual 2 Overview
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No. Silk-screen Function illustration Remarks
Dry
contact
2
EPO -
The signal is valid when 2P terminal block
disconnect.
The signal is EPO and cannot settable.
-
IN. 1 -
The trigger level of signal is settable
(NC/NO) and short circuit is valid for
default.
The signal is settable and refers to the note
for detail. Default is charge forbidden.
-
The settable item and illustrations of input dry contact
NO. Item Illustration
1 Charge forbidden
The charge forbidden signal of battery: The UPS will alarm
and turn off the battery charge when receiving this signal.
The trigger level of signal is settable.
2 External MBB on
The breaker on signal of external maintenance bypass: The
UPS will alarm and turn off the inverter output and switch
over bypass output when receiving this signal. The trigger
level of signal is settable.
3 External BB status
The breaker disconnected signal of external battery: The
UPS will alarm and prompts fault when receiving this signal.
The trigger level of signal settable.
4 UPS remote on/off The remote on/off signal of UPS: The UPS will on when
receiving this signal. The trigger level of signal is settable.
5 Batt. ground fault
The fault signal of battery ground: The UPS will report an
alarm and prompts fault when receiving this signal. The
trigger level of signal is settable.
6 Discharge forbidden
The discharge forbidden signal of battery: The UPS will
report an alarm and prohibits the battery discharge when
receiving this signal. The trigger level of signal is settable.

2 Overview
UPS IST7 (10KVA-40KVA)
User Manual
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The settable item and illustrations of output dry contact
NO. Item Illustration
1 Mains abnormal When mains grid is abnormal, the signal is valid and
triggers action of dry contact.
2 Bypass abnormal When bypass is abnormal, the signal is valid and triggers
action of dry contact.
3 Battery abnormal
When battery is abnormal, for example: battery low-voltage,
battery over-voltage, battery over-temperature and battery
disconnected, the signal is valid and triggers action of dry
contact.
4 Output abnormal When output is abnormal, the signal is valid and triggers
action of dry contact.
5 Overload abnormal When bypass or inverter of UPS is overloaded, the signal is
valid triggers action of dry contact.
6 General abnormal When the UPS is alarming for fault, the signal is valid and
triggers action of dry contact.
7 Normal operation When the UPS is in the normal operation, the signal is valid
and triggers action of dry contact.
8 Battery operation When the UPS is in the battery operation, the signal is valid
and triggers action of dry contact.
9 Bypass operation When the UPS is in the bypass operation, the signal is valid
and triggers action of dry contact.
10 UPS on/off status When the UPS is in on status, the signal is valid and triggers
action of dry contact.
11 Battery low When battery is low voltage, the signal is valid and triggers
action of dry contact.
12 ECO mode When the UPS output mode is ECO, the signal is valid and
triggers action of dry contact.
13 Fan fault When fan is abnormal, the signal is valid and triggers action
of dry contact.