East 6KVA User manual

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Table of Contents
1 Safety Information ................................................................................................ 1
1.1 Symbol instructions ............................................................................................................... 1
2 Product Overview ................................................................................................. 3
2.1 Product description ................................................................................................................ 3
2.2 Product features ..................................................................................................................... 3
2.3 Specifications ......................................................................................................................... 4
2.4 Front view of the UPS............................................................................................................. 6
3 Installation ............................................................................................................. 9
3.1 Transportation or movement ................................................................................................. 9
3.2 Unpacking inspection ............................................................................................................ 9
3.3 Installation ............................................................................................................................... 9
3.3.1 Installation environment and location.................................................................................................10
3.3.2 Wiring ..................................................................................................................................................10
3.3.3 Single wiring ........................................................................................................................................ 11
3.4 Parallel UPS units ................................................................................................................. 12
3.4.1 Redundancy introduction ....................................................................................................................12
3.4.2 Parallel units installation .....................................................................................................................12
4 Operation Instructions ....................................................................................... 14
4.1 Panel instructions ................................................................................................................. 14
4.1.1 Display panel .......................................................................................................................................14
4.1.2 LED indicators .....................................................................................................................................14
4.1.3 LCD screen ..........................................................................................................................................15
4.1.4 Keys .....................................................................................................................................................16
4.2 Panel operation ..................................................................................................................... 16
4.2.1 Panel parameter query ........................................................................................................................16
4.2.2 Function settings.................................................................................................................................17
4.3 Daily startup and shutdown ................................................................................................ 21
4.3.1 Startup procedures .............................................................................................................................21
4.3.2 Manual bypass ....................................................................................................................................22
4.3.3 Maintenance bypass............................................................................................................................22
4.3.4 Battery cold start .................................................................................................................................23
4.3.5 Shutdown procedures (Completely shutting down the UPS and loads) ............................................24
4.3.6 Emergency power off (EPO) ................................................................................................................24
4.3.7 Parallel UPS operation ........................................................................................................................24
4.3.8 Reset operation after the fault alarm...................................................................................................25
4.3.9 Automatic startup ................................................................................................................................25
4.4 Communication interface .................................................................................................... 26
4.4.1 Computer interface ..............................................................................................................................26
4.4.2 EPO port ..............................................................................................................................................26
4.4.3 Installation of intelligent cards (Optional) ...........................................................................................26

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5 Operation Modes ................................................................................................. 28
5.1 Mains inverter mode ............................................................................................................. 28
5.2 Battery mode ......................................................................................................................... 28
5.3 Bypass mode......................................................................................................................... 29
5.4 Maintenance mode ............................................................................................................... 29
5.5 Fault mode ............................................................................................................................. 30
6 Routine Maintenance .......................................................................................... 33
6.1 Application and maintenance of storage batteries ........................................................... 33
6.2 UPS maintenance ................................................................................................................. 34
6.3 Safety measures for maintenance ...................................................................................... 34

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1 Safety Information
CAUTION
Non-qualified electricians are forbidden to open the case due to hazard of electrical shock.
Consulting the dealer is required before using for below equipment. Its application, configuration,
management and maintenance must be specially considered and designed.
 Medical equipment which is directly related to patients’ life
 Elevator and other equipment which may endanger personal safety
 Equipment which is similar to the above-mentioned ones
1.1 Symbol instructions
The following symbols are used in this manual, and might also appear in the application process.
Therefore, each user is advisable to not only be familiar with the symbols, but also know their
significations.
Symbols and Significations
Symbol Significations Symbol Significations
Caution Protective grounding
Danger! High Voltage!
Disable/mute
audible alarm
Turn on Overload
Turn off Battery inspection
Standby or Shutdown Repeat
AC
Display screen cycle
button
DC Battery
Safety and General Information
 UPS is generally connected with the batteries. Even if UPS is disconnected with the
AC mains power, the voltage still might exist on its output end.
 If it is necessary to replace the charging cable or power cord, please purchase raw
materials from the service stations or dealers of our company, so as to avoid causing
heat generation, ignition, or fires due to insufficient capacity.
 Please use a dry power extinguisher if there is a fire around. There will be a risk of
electric shock if using liquid extinguishers.
 Do not use fire to dispose the batteries or battery packs. Otherwise, it will cause
explosive damage.

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 Do not open or destroy the batteries, the strong toxicity of the overflowing electrolyte
will do harm to human bodies.
 Please avoid the short circuit of battery anodes and cathodes. Otherwise, it will cause
electric shocks or ignition.
 Please do not open the UPS housing by yourself. Otherwise, there will be a risk of
electric shock
 Do not open the batteries, the electrolyte will do harm to skins and eyes. If coming into
contact with the electrolyte by accident, use plenty of clean water to wash immediately,
and then go to the hospital for examination.
 Do not touch the battery terminals. If the battery circuit is not isolated from the input
voltage circuit, hazardous high voltage may exist between battery terminals and
ground.
Symbol Instructions
Warning
 The large leakage current must be grounded before turning on the
power (including AC mains power and batteries). The equipment
grounding must comply with local electrical codes.
Caution
 UPS has high voltage inside. If there are any questions, please
consult the qualified electricians, so as not to endanger personal
safety.
Do not try to maintain UPS. UPS does not have any components that
might be maintained by users. Furthermore, this UPS has potential
hazardous voltage. The maintenance can only be done by qualified
maintenance personnel trained by the manufacturer. If users
maintain or modify UPS by themselves, no warranty will be given.

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2 Product Overview
2.1 Product description
This series on-line UPS is a high-performance and full-digital uninterruptible power supply using the
DSP control technology. The system uses online double-conversion topology design. The DC/AC
converter adopts SPWM technology, IGBT power module, and output isolation transformer.
Therefore, This series UPS is a kind of pure sine wave power supply with stable frequency stable
voltage (SFSV) output and without being affected by grid interference. This series UPS has wide
mains input voltage range, superior generator compatibility, strong load capacity, good load
compatibility, no switching time needed during the output, and other characteristics, which can
greatly meet the demands of various application environments.
 Power range: 6-30KVA
 Operating mode: intelligent power frequency online mode
 Power supply mode: 1-phase in/1-phase out, and 3-phase in/1-phase out
 Applications: finance, telecommunications, securities, tax administration, transportation,
insurances, governments, enterprises, etc.
2.2 Product features
 Strong environmental adaptability
 Strong grid adaptability: the input voltage of the 1-phase in/1-phase out UPS is within the
range of 165VAC to 275VAC; while that of the 3-phase in/1-phase out UPS is within the
range of 285VAC to 475VAC. The input frequency is within the range of 40Hz to 70Hz,
which can adapt to severe grid environment and various kinds of fuel generators.
 Strong load capacity: this series UPS is compatible with mixed load along with strong
overload capacity.
 Adjustable output voltage/frequency: according to the user needs, the output voltage and
the frequency can be respectively set at 220V/230V/240Vand 50/60Hz.
 Double DSP control with high reliability
 Independent bypass power supply: the bypass DSP automatically detects the state of the
main DSP. When there are abnormities on the main power panel or the main DSP, switch
the UPS to the bypass mode for output, and give an alarm at the same time, so as to
ensure the uninterruptible power supply for loads.
 Strong charging capability
 The charging current 2A, 4A, 6A, 8A, 10A and 12A can be easily set by DIP switch. This
series UPS (10Kand above) supports dual parallel charging panels. The maximum
charging current is 24A.
 Support dual input, series hot standby, and parallel operation
 It is easy to realize dual input, series hot standby, and parallel operation. Furthermore, it is
simple to operate, which can further improve the system reliability.
 Input high voltage protection function
 Monitor the input voltage of the rectifier. Disconnect the rectifier during the high voltage
input, so as to protect the safety of the inverter.

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 Diversified communication modes
 RS232 and USB communication for standard configuration; RS485, SNMP, and dry contact
for options.
 Battery cold start
 Manual maintenance
2.3 Specifications
Model 6KVA
10KVA
10KVA
15KVA
20KVA
30KVA
Operating Mode & Principle Online power supply, static bypass switch (uninterruptible
switchover), and double-conversion digital technology
Main
Input
Rated Voltage 220/230/240VAC
380/400/415VAC
Standard Single-phase
two-wire +PE Three-phase four-wire +PE
Voltage Range 165 ~ 275VAC 285 ~ 475VAC
Rated Frequency 50Hz/60Hz
Frequency Range 40 ~ 70Hz
Frequency Tracking
Range ±5%Hz
Bypass
Input
Rated Voltage 220/230/240VAC
Standard Single-phase two-wire +PE
Overload Capacity
Load current<150% rated current: long time working
150%≤ load current <200%: 1min
200% rated current ≤ load current: 200ms
Charging
Charging Voltage 220VDC
Final Discharging
Voltage Vmin = 168VDC
Charging Current 8A as default (adjustable to 2A/4A/6A/8A/10A/12A)
Protection Input and output overvoltage protection, short-circuit protection,
overtemperature protection etc.
Battery
Type Maintenance-free lead-acid battery
Battery Quantity 16pcs12V batteries in series
Nominal Battery Voltage
192VDC
AC
Output
Rated Voltage 220/230/240VAC
Standard Single-phase two-wire +PE
Power Factor 0.8
Output Waveform Pure sine wave
Rated Frequency 50Hz/60Hz(settable)
Frequency Accuracy <±0.1Hz (battery inverter)
Frequency Tracking
Rate 0.5Hz ~ 2Hz/S
Voltage Accuracy <±1% (steady state)
Dynamic Voltage
Transient Range ±5% (0 ~ 100%load varies)

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Voltage Transient
Recovery Time <20ms
Output Current Peak
Ratio 3: 1
Waveform Distortion <3% (linear load); <6% (non-linear load)
Switching Time Mains power mode to battery mode: 0ms;
Bypass mode to inverter mode: 0ms
Overload Capacity
Load ≤105%: long time working;
105%< load ≤125%: transfer to bypass output in 10min;
125%< load ≤150%: transfer to bypass output in 1min;
150%< load ≤ 200%: transfer to bypass output in 200ms;
Load >200%: transfer to bypass output in 100ms.
Alarm
Mains Power Failure 2 beeps/s: manual silence
Battery Under Voltage 4 beeps/s: manual silence
Overload Alarm 2 beeps/s: manual silence
Fault Alarm Long beep
System
Display LED+LCD
Operation Press the button
Protective Function Output short-circuit, overload, output overvoltage / undervoltage,
battery low voltage, and overtemperature protection
Communication Port RS232/USB (standard configuration);
RS485/SNMP card/dry contacts (options)
Operating Temperature
0~40℃
Storage Temperature -40~70℃(without batteries); -20~55℃(with batteries)
Relative Humidity 0~95% (non-condensing)
Operating Altitude The altitude shall not exceed 1000m. Derating for above 1000m
according to GB/T 3859.2 standard.
Noise <60 dB (1m)
Input / Output
Connection Mode Terminal block
Others
MTTF MTTF>200,000 h
MTTR MTTR<0.5 h
Insulation Resistance >2MΩ(500VDC)
Insulating Strength 2820Vdc, leakage current is less than1mA, 1minno arcing
Physical
Structure Tower
IP Rating IP20
Dimensions
W×D×H (mm)
210×5
85×59
0
310×600×880 400×815×1100
Net Weight (kg) 54 96 130
201 230 277
Color Dark grey

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2.4 Front view of the UPS
UPS net dimensions (mm)
6KVA 10KVA 30KVA
Front panel and rear panel features
6KVA front and rear panel

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① SNMP port ⑤Mains input breaker ⑨Fan
②USB port ⑥Bypass input breaker ⑩Terminal block
③ EPO port ⑦Output breaker ⑪Display panel
④RS232 port ⑧Maintenance bypass breaker
10KVA (1/1) front and rear panel
①EPO port ⑤Mains input breaker ⑨ SNMP port
②USB port ⑥Bypass input breaker ⑩Terminal block
③ RS232 port ⑦Output breaker ⑪Display panel
④Parallel port ⑧Maintenance bypass breaker

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30KVA (3/3) front and rear Panel
①EPO port ⑤ SNMP port ⑨Maintenance bypass breaker
②USB port ⑥Mains input breaker ⑩Terminal block
③ RS232 port ⑦Bypass input breaker ⑪Display panel
④Parallel port ⑧Output breaker

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3 Installation
3.1 Transportation or movement
Considering the outermost shell of this product being shield, the protective cover cannot be used as
the force bearing parts for transportation. It is necessary to pay attention to the following points, so
as to ensure the safety:
 The batteries, battery cables, and other load cables can be placed separately during the
transportation or movement.
 Prevent severe shock and impact, and handle gently.
 Avoid placing the UPS upside down.
3.2 Unpacking inspection
 Open the UPS package and inspect the contents upon receipt. The accessories attached
to the UPS contain an operation manual, an RS232 communication cable, a USB cable,
and a CD.
 Check if the unit is damaged during transport. Do not power on and notify the carrier and
dealer if find damaged or parts missing.
 Verify this unit is the model you want to buy. Check the model name showed both on the
front panel and rear panel.
Note: Keep the packaging box and packaging materials for reuse. The equipment is heavy. Always
handle it with care.
3.3 Installation
Due to the particularity of each site, this section only provides the qualified installation personnel
with the general installation steps and methods for guidance, instead of introducing detailed
installation steps. The installation personnel shall handle according to the specific situation of the
site.
Caution
 The UPS ground wire shall be connected well during the electrical connection. Furthermore,
make sure to disconnect all switches before the completion of UPS installation.
 The UPS installation shall be conducted by qualified engineers according to the
instructions of this chapter and local standards.
 It is necessary to be extremely careful during the battery installation. If the voltage on both
ends of the battery exceeds 192VDC during the battery connection, it is in deadly danger.
Please wear an eye shield, so as to prevent arcs from hurting your eyes by accident.
Remove rings, wrist watches, and all metal objects. Use the tools with insulated handles.
Wear rubber gloves. If there is any battery electrolyte leakage or battery damage, replace
the battery, place it in the container which is resistant to sulfuric acid corrosion, and dispose
it according to local regulations. If the skin contacts with the electrolyte, rinse with water

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immediately.
 The altitude shall not exceed 1,000m. Derating for above 1,000m according to GB/T 3859.2
standard.
3.3.1 Installation environment and location
 The UPS placement area shall have good ventilation, and shall be away from water,
flammable gas, and corrosives.
 Make sure that the ground or installation platform can bear the weight of UPS, batteries,
and battery racks. The weight of batteries and battery racks shall be calculated according
to the actual usage.
 Keep the air inlet holes on the front panels, the air outlet holes of the fans on the rear cover
plates, and the air inlet holes on the sides of the boxes unobstructed.
 Keep the UPS ambient temperature between 0℃ to 40℃.
 If dismounting the UPS at low temperature for application, there might be condensed water
droplets. The UPS can only be installed for application after becoming completely dry on
the inside and outside. Otherwise, there will be a risk of electric shock.
3.3.2 Wiring
When designing the external connection cables, it is essential to consider the requirements for the
current capacity of power cables and the overload capacity of the system, the ambient temperature,
and the physical media support. The installation engineers shall refer to local relevant regulations
and standards as well as the actual situation of users for comprehensive selection. The connection
cables are generally 2-50m in length. Since the overlong cables will cause low voltage, the
dimension of the cable cross-sectional area shall be increased accordingly.
Use the terminal block mode as the connection mode for UPS input and output. The basic
requirements for wiring are as follows:
Model
Wire Dimension (mm²) Screw Dimension
Mains
Input
Bypass
Input
Battery
Input Output
Ground
Wire Screw
Screw
Hole
6KVA (1: 1) 6 6 6 6 6 M6 6
10KVA (1: 1) 10 10 10 10 6 M6 6
10KVA (3: 1) 6 10 10 10 6 M6 6
15KVA (3: 1) 8 12 12 12 10 M6 6
20KVA (3: 1) 8 16 16 16 16 M6 6
30KVA (3: 1) 10 25 25 25 16 M8 8
Note: During the wiring, make sure to respectively connect the input and output cables with the input and output
terminals firmly. There must be no poor contact. It is suggested that the ground wire diameter should be close
to the diameter of the input and output cables.

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Wiring schematic diagram for 1-phase in/1-phase out UPS:
L N L + - L N E
Input Bypass
Battery Output
Ground
wire
INPUT BYPASS BATTERY OUTPUT PE
Wiring schematic diagram for 3-phase in/1-phase out UPS:
A B C N L + - L N E
Input Bypass Battery
Output Ground
wire
INPUT BYPASS BATTE
RY
OUTPUT PE
3.3.3 Single wiring
After fully positioning the equipment, connect the power cord according to the following steps:
 Make sure that all the input power distribution switches and internal power switches of UPS
have been completely disconnected. Stick warning labels on these switches, so as to
prevent others from conducting incorrect operations to the switches.
 Remove the cover plate of the terminal block below the UPS rear panel, so as to expose
the terminal block connected with the power cable.
 Ground connection:
Connect the protective grounding cable and other necessary grounding cables to the ground
terminal of the UPS terminal block. All the UPS cabinets must be connected with the user grounding
cable.
 Mains and bypass input wiring:
 During the assembly, the bypass input cable L and the mains input cable L (1-phase
in/1-phase out UPS), or the mains input cable C (3-phase in/1-phase out UPS) have
been short-circuited on the terminal block.
 When the bypass and the mains power use the same mains input, the AC input cable
shall be connected with the UPS mains input terminal. Make sure that the bypass input
cable L and the mains input cable L (1-phase in/1-phase out UPS), or the mains input
cable C (3-phase in/1-phase out UPS) are short-circuited. Furthermore, make sure
that the live wire and the neutral wire are properly connected according to the label of
terminal block.

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 The bypass refers to the short-circuit wire that shall be used for disconnecting the
mains power and bypass on the terminal block when the mains power uses duplex
mains input, which is the short-circuit wire of the bypass input cable L and the mains
input cable L (1-phase in/1-phase out UPS), or the mains input cable C (3-phase
in/1-phase out UPS). The bypass input cable N and the mains input cable N shall be
short-circuited before connecting with the mains terminal N of the terminal block. The
bypass live wire and the mains live wire shall be connected according to the label of
the terminal block.
 Output cable connection:
Connect output cables between UPS output terminals and important loads.
If loads are not ready to receive the power supply when commissioning engineers arrive at the
scene, please properly handle the safety insulation on the end of the system output cable.
 External battery connection:
Please refer to the Chapter 4.5 in the EN50091-1 standard for battery connection.
The battery cabinets must have separate ground connection.
Connect battery cables between the (battery input +/-) battery terminals and the battery switches
of UPS. When connecting the cables between battery terminals and battery switches, connect
from the switch end first. Pay attention to the polarity of battery cables.
 Reinstall all the protective cover plates.
3.4 Parallel UPS units
3.4.1 Redundancy introduction
N+X parallel redundancy is the most reliable power supply structure at present. N stands for the
minimum number of UPS required for total load. X stands for the number of redundant UPS, which is
the number of UPS failure that the system can bear all at once. The larger the X is, the more reliable
the system will be. N+X parallel redundancy is the best mode for the applications requiring extremely
high reliability.
3.4.2 Parallel units installation
The function of parallel operation is an optional function of UPS. Users can purchase the
components with the function of parallel operation (including parallel cards and parallel cables) by
themselves, and then contact customer service staff to install the components on the UPS.
Connect signal cables for parallel UPS units
Each UPS has 2 parallel cable ports (one is DB15male socket, and the other is DB15 female socket)
used for connecting two parallel cables. Two parallel cables play the role of redundancy. Keep the
cable paralleled as far as possible, so as to reduce the external interference on the parallel cables.
Take two parallel UPS units as an example. The wiring schematic diagram is shown as follows.

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Connect power cables for parallel UPS units
After fully positioning the equipment, use the input and output cable of the parallel system to
respectively connect the input ends of each UPS together, and the output ends of each UPS
together. The wiring schematic diagram is shown as follows.
If using separate bypass connection, disconnect the short-circuit wire of the bypass input cable L and
the mains input cable L (1-phase in/1-phase out UPS), or the mains input cable C (3-phase
in/1-phase out UPS) inside the terminal block of each UPS. Furthermore, respectively connect the
mains input ends of each UPS together, and the bypass input ends of each UPS together. Pay
attention to confirm whether the live wire and the neutral wire are connected in a correct way.
The cable connection of the battery is the same as that of the single unit. Each UPS has
independent battery pack. UPS cannot share battery packs.
Caution
All of the UPS bypass shall be connected in the same way for power distribution in the parallel
system. The power line between the input end and the AC distribution connecting point of each UPS
shall be as long as that between the output end and the load connecting point. Make sure that the
input and output impedance of each UPS is consistent with each other, so as to achieve the
current-sharing effect of the paralleled UPS.
DB15公座 DB15母座
UPS1
DB15公座 DB15母座
UPS2
DB15 Male Socket DB15 Female Socket
DB15 Female Socket
DB15 Male Socket
Load AC Input

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4 Operation Instructions
4.1 Panel instructions
4.1.1 Display panel
Keys Descriptions
+ ON
+ OFF
+ MUTE
4.1.2 LED indicators
REC: Rectification Indicator
INV: Inverter Indicator OUTPUT: Output Indicator
BYP: Bypass Indicator BAT: Battery Indicator

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The indicator status description is shown in the table below.
Indicator
No. Function Description
① Rectification Indicator
(green)
Light on: The rectifier is running.
Light off: The rectifier is out of operation.
② Inverter Indicator
(green)
Light on: The inverter is turned on.
Light off: The inverter is out of operation.
Blink: The inverter is in standby mode.
③ Output Indicator
(green)
Light on: UPS has bypass/inverter output.
Light off: UPS has no output.
④ Bypass Indicator
(yellow)
Light on: UPS is powered by the bypass.
Light off: UPS is not powered by the bypass.
⑤ Battery Indicator
(yellow)
Light on: UPS is working in battery mode.
Light off: UPS is working in non-battery mode.
Blink: The battery voltage is low.
4.1.3 LCD screen
LCD panel view
The LCD display can be divided into 3 areas from top to bottom, which are “graphic display area”,
“numerical display and function setting area”, and “power level and operating mode display area”.
 Graphic display area:
 The load figures represent the load capacity. Each square represents the capacity of 25%.
 The fan icon will present rotating status without any corresponding meaning; the overload
icon will show up without any corresponding meaning.
 If pressing the mute button in battery mode or in fault and alarm mode, the buzzer icon will
blink. This icon will not show up under other circumstances.
 The fault icon will be lit up and blink in fault or alarm mode. This icon will not show up under
other circumstances.
 Numerical display and function setting area:
 The output information shows up. If operating left and right buttons, the input, battery, output,
load, alarm and fault codes will display successively (the fault codes are on the left, while
the alarm codes are on the right, please refer to the Chapter 5 “5.5 Fault Mode” for the
specific fault and alarm information).

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 Press the setting button in standby mode, so as to enter the function setting status for
manual bypass setting, output voltage setting, output frequency setting, physical address
setting, UPS self-inspection function (p) setting (fault elimination function), etc.
 Power level and operating mode display area:
 This display area mainly displays the power level of the UPS within 10s after startup;
 This display area mainly displays the operating mode of the UPS 10s after startup. For
instance, STdby (standby mode), BYPS (bypass mode), LINE (mains mode), BAT (battery
mode), and FAULT (fault mode).
4.1.4 Keys
It is hereby explained that the UPS key operation is divided into two types, so as to prevent incorrect
operations: ①“LONG PRESS”, only be effective after pressing for 2s and above; ②“SHORT
PRESS”, only be effective after pressing for 0.5s and above.
 Startup Key Combination ( + )
If pressing the startup key combination for 0.5s and above, UPS will turn on.
 Shutdown Key Combination ( + )
If pressing the shutdown key combination for 0.5s and above, UPS will turn off.
 System Mute Key Combination ( + )
If long pressing for 2s and above in battery mode or fault and alarm modes, UPS will be mute.
 Setting Key ( )
Press to enter the function setting status.
 Left Page-turning Key ( )
Execute the left page-turning operation by short pressing the key in the main interface and the
setting interface.
 Right Page-turning Key ( )
Execute the right page-turning operation by short pressing the key in the main interface and
the setting interface.
4.2 Panel operation
4.2.1 Panel parameter query
Successively query input, battery, output, load, alarm, and fault codes by short pressing the left key
or right key .
 Output: Display UPS output voltage and output frequency. As shown in the figure below, the
output voltage is 220V, and the output frequency is 50.0Hz.

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 Load: Display the values of “active power” and “apparent power” at this moment. As shown in
the figure below, the load capacity is 8.0kW/10.0kVA.
 Input: Display input voltage and input frequency. As shown in the figure below, the input voltage
is 220V, and the input frequency is 50.0Hz.
 Battery: Display battery voltage as well as parallel master and slave unit. As shown in the figure
below, the battery voltage is displayed on the left, while the master and slave unit are displayed
on the right (1 represents the master unit, while 2 represents the slave unit).
4.2.2 Function settings
Note:
 The function setting interface provides the setting and query functions of UPS parameters and
status. UPS output parameters or operating mode might be affected after setting. Please
operate carefully!
 Set Data or Status Query: When entering the setting interface, the data or status showing up for
the first time stands for the current setting. Take the output voltage setting and query as an
example. When entering the OPU setting interface, if “220V” shows up on the right side, it
indicates that the output voltage is set at 220V at present; if setting the output voltage at 230V,
“230V” will show up on the right side when entering the OPU setting interface again.
 UPS parameter (output voltage, frequency, and address) setting needs to be conducted in
standby mode. After the setting, the set parameters can only come into effect under normal
shutdown.