Uninterruptible Power Systems

10~20kVA

Operation Manual
A
4256-8353
All rights reserved.
The information in this document is subject to change without notice.

Publish statement
Thank you for purchasing this series UPS.
This series UPS is an intelligent, three phase in three phase out, high frequency online
UPS designed by our R&D team who is with years of designing experiences on UPS.
With excellent electrical performance, perfect intelligent monitoring and network
functions, smart appearance, complying with EMC and safety standards, This UPS has
become standard product which meets the world’s advanced level.
Read this manual carefully before installation
This manual offers technical support for equipment operator
 Contents
1 Safety............................................................................................................................................................ 2
1.1 Safety notes ....................................................................................................................................... 2
1.2 Symbols used in this guide............................................................................................................ 2
2 Main Features ............................................................................................................................................. 3
2.1 Summarization ................................................................................................................................... 3
2.2 Functions and Features .................................................................................................................. 3
3 Installation .................................................................................................................................................. 4
3.1 Unpack checking .............................................................................................................................. 4
3.2 UPS Module Outlook ........................................................................................................................ 4
3.3 PDU Module Outlook (Optional) .................................................................................................... 5
3.4 LCD control panel ............................................................................................................................. 5
3.5 Installation notes .............................................................................................................................. 5
3.6 External Protective Devices ............................................................................................................ 6
3.7 Power Cables ..................................................................................................................................... 7
3.8 Power cable connect ........................................................................................................................ 8
3.9 Battery connection .......................................................................................................................... 11
3.10 UPS Multi Module Installation ................................................................................................. 12
3.10.1 Cabinet installation ........................................................................................................... 12
3.10.2 Parallel cable installation ................................................................................................. 12
3.10.3 Requirement for the parallel system ............................................................................ 12
3.11 Computer access .......................................................................................................................... 13
4 Operation ................................................................................................................................................... 15
4.1 Operation Modes ............................................................................................................................. 15
4.2 Turn on/off UPS ............................................................................................................................... 15
4.2.1 Connecting with Utility ....................................................................................................... 15
4.2.2 Black(Cold) start procedure ............................................................................................. 16
4.2.3 Test procedure ..................................................................................................................... 16
4.2.4 Inverter Off ............................................................................................................................ 17
4.2.5 Disconnecting with Utility ................................................................................................ 17
4.2.6 Parallel setting...................................................................................................................... 17
4.3 The Display ....................................................................................................................................... 19
4.3.1 System LCD display............................................................................................................ 19
4.6 Display Messages/Troubleshooting........................................................................................... 29
4.7 Options .............................................................................................................................................. 30
Appendix 1 Specifications .......................................................................................................................... 32
Appendix 2 Problems and Solution .......................................................................................................... 33
Appendix 3 RS232 communication port definition ............................................................................... 34
Appendix 4 RS485 communication port definition ............................................................................... 35
Appendix 5 BAT_T communication port definition .............................................................................. 36
Appendix 6 Output port definition ............................................................................................................ 36
Appendix 7 MAINTAIN-AUXSWS port definition ................................................................................... 37
Appendix 8 EPO instruction ....................................................................................................................... 38
Appendix 9 BMS communication port definition (Optional) .............................................................. 39
1
 1 Safety
Important safety instructions – Save these instructions

There exists dangerous voltage and high temperature inside the UPS. During the
installation, operation and maintenance, please abide the local safety instructions and relative
laws, otherwise it will result in personnel injury or equipment damage. Safety instructions in this
manual act as a supplementary for the local safety instructions. Our company will not assume the
liability that caused by disobeying local safety instructions。

1.1 Safety notes

1． Even no connection with utility power, 220/230/240VAC voltage may still exist at UPS outlet！

2． For the sake of human being safety, please well earth the UPS before starting it .

3． Don’t open or damage battery, for the liquid spilled from the battery is strongly poisonous
and do harmful to body！

4． Please avoid short circuit between anode and cathode of battery, otherwise, it will cause
spark or fire！

5． Don’t disassemble the UPS cover, or there may be an electric shock！

6． Check if there exists high voltage before touching the battery

7． Working environment and storage way will affect the lifetime and reliability of the UPS. Avoid
the UPS from working under following environment for long time

◆ Area where the humidity and temperature is out of the specified range(temperature 0
to 40℃, relative humidity 5%-95%)

◆ Direct sunlight or location nearby heat

◆ Vibration Area with possibility to get the UPS crashed.

◆ Area with erosive gas, flammable gas, excessive dust, etc

8． Keep ventilations in good conditions otherwise the components inside the UPS will be
over-heated which may affect the life of the UPS.

1.2 Symbols used in this guide

WARNING!

Risk of electric shock

CAUTION!

Read this information to avoid equipment damage

2
 2 Main Features
2.1 Summarization
This series UPS is a kind of three-in- three-out high frequency online UPS. The products are
modularized and adopt the N+X redundancy. It can flexibly increase the number of the UPS
modules according to the load capacity which is convenient for flexible allocation and gradually
investment.
The UPS can solve most of the power supply problems, such as blackout, over-voltage,
under-voltage, voltage sudden drop, oscillating of decreasing extent, high voltage pulse, voltage
fluctuation, surge, inrush current, harmonic distortion (THD), noise interference, frequency
fluctuation, etc..
This UPS can be applied to different applications from computer device, automatic equipment,
communication system to industry equipment.

2.2 Functions and Features

◆Digital Control
This series UPS is controlled by Digital Signal Processor(DSP); ehance, it increases
reliability, performance, self-protection, self-diagnostics and so on.
Modular Design
◆Battery Configurable from 30 blocks to 50 blocks
The battery voltage of this series UPS can be configured at 30blocks, 32 blocks, 34 blocks, 36
blocks, 38 blocks, 40 blocks, 42 blocks, 44 blocks, 46 blocks, 48 blocks or 50 blocks according to
your convenience.
◆Charging Current is configurable
Via setting tool, the user may set the capacity of the batteries as well as reasonable charging
current as well as maximum charging current. Constant voltage mode, constant current mode or
floating mode can be switched automatically and smoothly.
Intelligent Charging Method
The series UPS adopts advanced three-stage charging method—
1st stage: high current constant current charging
to guarantee to charge back to 90%;
nd
2 -stage: Constant Voltage
In order to vitalize battery and make sure batteries are fully charged
rd
3 stage: floating mode.
With this 3-stage charging method, it extends the life of the batteries and guarantees fast charging.
LCD Display
With LCD plus LED displays, the user may easily get UPS status and its operational
parameters, such as input/output voltage, frequency & load%, battery % and ambient
temperature, etc..
Intelligent Monitoring Function
Via optional SNMP Card, you may remotely control and monitor the UPS.
EPO Function
The series UPS may be completely shut off when the EPO is pressed. EPO function(Remote
EPO) is also available in this series UPS.

3
 3 Installation
3.1 Unpack checking
1. Don’t lean the UPS when moving it out from the packaging
2. Check the appearance to see if the UPS is damaged or not during the transportation, do
not switch on the UPS if any damage found. Please contact the dealer right away.
3. Check the accessories according to the packing list and contact the dealer in case of
missing parts.

3.2 UPS Module Outlook

Front View

Rear View

Side View
(1) fixing screw hole (2) handles (3)LCD Display (4)Input Terminal (5) Battery Terminal
(6) EPO port (7) Output port (8) MAINTAIN-AUXSWS (9) fan (10) BMS (optional)
(11) Intelligent Slot (SNMP card/ Relay card) (12) RS232 port (13) RS485 (14) Output
Terminal (15) Parallel Port 1 (optional) (16) Parallel Port 2 port (optional)
4
3.3 PDU Module Outlook (Optional)

Front View

Rear View

Side View
(1)Mains Breaker (2)Bypass Breaker (3)Maintenance Breaker (4)Output Breaker (5)handles
(6) Output(to UPS Output) (7) MAINTAIN-AUXSWS(to UPS MAINTAIN-AUXSWS)
(8)Input/ Output Terminal

3.4 LCD control panel

LCD control panel introduction

（1）LED（from top to bottom: “alarm”, “bypass”, “battery”, “inverter”）（2）LCD display （3）
scroll button （4）Off button （5）On button(battery cold start switch)
Note ROTATE key ( )
“ ” button for 10 seconds to realize LCD rotate

3.5 Installation notes

◆Please place the UPS in a clean, stable environment, avoid the vibration, dust, humidity,
5
 flammable gas and liquid, corrosive objects. To avoid from high room temperature, a system of
room extractor fans is recommended to be installed. Optional air filters are available if the UPS
operates in a dusty environment.
◆The environment temperature around the UPS should keep in a range of 0℃～40℃. If the
environment temperature exceeds 40℃, the rated load capacity should be reduced by 12％ per
5℃. The max temperature can't be higher than 50℃.
◆If the UPS is dismantled under low temperature, it might be in a condensing condition.The
UPS can't be installed unless the internal and external of the equipment is fully dry. Otherwise,
there will be in danger of electric shock.
◆Batteries should be mounted in an environment where the temperature is within the required
specs. Temperature is a major factor in determining battery life and capacity. In a normal
installation, the battery temperature is maintained between 15°C and 25°C. Keep batteries away
from heat sources or main air ventilation area, etc.
WARNING!
Typical battery performance data are quoted for an operating temperature between
20°C and 25°C. Operating it above this range will reduce the battery life while
operation below this range will reduce the battery capacity.
◆Should the equipment not be installed immediately it must be stored in a room so as to
protect it against excessive humidity and or heat sources。

CAUTION!
An unused battery must be recharged every 6months. Temporarily connecting the
UPS to a suitable AC supply and activating it for the time required for recharging
the batteries are required.
◆The highest altitude that UPS may work normally with full load is 1500 meters. The load
capacity should be reduced when this UPS is installed in place whose altitude is higher than
1500 meters, shown as the following table:
（Load coefficient equals max load in high altitude place divided by nominal power of the UPS ）
Altitude（m） 1500 2000 2500 3000 3500 4000 4500 5000
Load coefficient 100% 95% 90% 85% 80% 75% 70% 65%

◆To get the UPS completely monitored by the software, you just simply connect RS232
cable to each end of the computer and the UPS respectively.

3.6 External Protective Devices

For safety reasons, it is necessary to install, external circuit breaker at the input A.C. supply
and the battery. This chapter provides guidelines for qualified installers that must have the
knowledge of local wiring practices for the equipment to be installed.
◆External Battery
The UPS and its associated batteries are protected against the effect of over-current
through a DC compatible thermo-magnetic circuit-breaker (or a set of fuses) located
close to the battery.
◆UPS Output
Any external distribution board used for load distribution shall be fitted with protective
devices that may avoid the risk of UPS overloaded.
◆Over-current
Protection device shall be installed at the distribution panel of the incoming main
supply. It may identify the power cables current capacity as well as the overload capacity
6
 of the system .

The following table shows the recommended capacity of the UPS input/output breaker.
Please choose as needed.

CAUTION!
UPS has large leakage current. It is not recommended to use circuit breakers with
leakage protection.

CAUTION!
The following table shows the recommended preceding stage protection devices to
make the UPS reach the rated short-circuit current limit of 10kA and these protection
devices must comply with the IEC60947 standard.

10kVA 15kVA 20kVA

Model/ Three Three Three Three Three Three-
mode Single Single Single
single -three single -three single three
mode mode mode
modes model modes model modes model
Mains
63A 20A 20A 100A 32A 32A 125A 40A 40A
breaker
Bypass
63A 63A 20A 100A 100A 32A 125A 125A 40A
breaker
Maintenance
63A 63A 20A 100A 100A 32A 125A 125A 40A
breaker
Output
63A 63A 20A 100A 100A 32A 125A 125A 40A
breaker
Battery
32A/3Pin 63A/3Pin
breaker

CAUTION!
In same source single input mode, refer to the recommended model of the bypass
breaker for the input circuit breaker in order to avoid exceptions caused by excessive
single-phase bypass output current.

The battery breaker should be DC 250Vdc and above.

3.7 Power Cables

◆The cable design shall comply with the voltages and currents provided in this section,
Kindly follow local wiring practices and take into consideration the environmental conditions
(temperature and physical support media) .

WARNING
UPON STARTING, PLEASE ENSURE THAT YOU ARE AWARE OF THE
LOCATION AND OPERATION OF THE EXTERNAL ISOLATORS WHICH ARE
CONNECTED TO THE UPS INPUT/BYPASS SUPPLY OF THE MAINS
DISTRIBUTION PANEL.CHECK TO SEE IF THESE SUPPLIES ARE
ELECTRICALLY ISOLATED, AND POST ANY NECESSARY WARNING SIGNS
TO PREVENT ANY INADVERTENT OPERATION

7
Cable Dimension
Cable Dimension
UPS module(KVA) AC Input AC Output DC Input Grounding
(mm2) (mm2) (mm2) (mm2)
10 (3-in 3-out) 4 4 6 4
10 (3-in 1-out/1-in 1-out) 10 10 6 10
15 (3-in 3-out) 6 6 10 6
15 (3-in 1-out/1-in 1-out) 16 16 10 16
20 (3-in 3-out) 8 8 13 8
20 (3-in 1-out/1-in 1-out) 25 25 13 25

CAUTION!
Protective earth cable: Connect each cabinet to the main ground system.
For Grounding connection, follow the shortest route possible 。

WARNING!
FAILURE TO FOLLOW ADEQUATE EARTHING PROCEDURES MAY RESULT
IN ELECTROMAGNETIC INTERFERENCE OR IN HAZARDS INVOLVING
ELECTRIC SHOCK AND FIRE

3.8 Power cable connect

Once the equipment has been finally positioned and secured, connect the power cables as
described in the following procedure.
Verify the UPS is totally isolated from its external power source and also all power isolators of
the UPS are open. Check to see if they are electrically isolated, and post any necessary warning
signs to prevent their inadvertent operation .

Left: Input Ground, Mains Neutral/ Bypass Neutral, Mains L1/ Bypass L1, Mains L2/ Bypass L2
& Mains L3/ Bypass L3
Middle: Bat Positive/ Bat Neutral/Bat Negative
Right: Output Ground/Output Neutral/Output L1/Output L2/Output L3
8
 AC Input UPS Input UPS Output AC Output
Choose appropriate power cable, and pay attention to the diameter of the
connection terminal of the cable that should be greater than or equal to that of the
connection poles;

WARNING!
In the case of “split bypass” operation, make sure the cable or copper
wire between each input lines have been removed. The AC input and the
AC bypass supplies must be referenced to the same neutral point.

WARNING!
If the load equipment is not ready to accept power on the arrival of the
commissioning engineer then ensure that the system output cables are
safely isolated at their ends

CAUTION!
The earthing and neutral bonding arrangement must be in accordance
with local and national codes of practice.

Power distribution mode for I/O system

There are six ways to connect the input and output cables according to the power
distribution requirements of users:
Three-in three-out same source single input (default); three-in three-out different source dual
input; three-in single out same source single input; three-in single out different source dual input;
single in single out same source single input; single in single out different source dual input
9
 When selecting different wiring methods, modify the short connected copper bars according
to the wiring method below.
Output connected
Wiring method Input connected short copper bar
short copper bar
Three-in three-out same
source single input
4PCS copper bars short
connected input part: None
Bps-C and Vin-C;
Bps-B and Vin-B;
Bps-A and Vin-A;
Bps-N and Vin-N
Three-in three-out
different source dual
input
Remove the short
connected copper bar None
between 3PCS live wires
A/B/C;
Note to keep the short
connected copper bar of
Bps-N and Vin-N.
Three-in single out same
source single input
1PCS copper bar short
connected to bypass input
and main line A-phase
part;
1PCS copper bar short
connected to output part
Three-in single out
different source dual
input
1PCS copper bar short
connected to input bypass
part;
1PCS copper bar short
connected to output part
Single in single out
same source single
input
1PCS copper bar short
connected to bypass input
and main line input part;
1PCS copper bar short
connected to output part

Single in single out

different source dual
input
1PCS copper bar short
connected to bypass
Bps-C, Bps-B and Bps-A;
1PCS copper bar short
connected to main line
Vin-C, Vin-B and Vin-A;
1PCS copper bar short
connected to output part

10
 CAUTION
Dual input wiring method for different sources: Main input N and bypass input N
must be short connected!

3.9 Battery connection

The UPS adopts positive and negative double battery framework, total 30(optional
32/34/36/38/40/42/44/46/48/50) pieces in series. A neutral cable is retrieved from the
joint between the cathode of the 15th (16th /17th /18 th/19 th/20th/21th/22th/23th/24th/25th) and
the anode of the 16th (17 th/18 th/19 th/20th /21 th/22 th/23 th/24 th/25 th/26 th) of the batteries.
Then the neutral cable, the battery Positive and the battery negative are connected with
the UPS respectively. The battery sets between the Battery anode and the neutral are
called positive batteries and that between neutral and cathode are called negative ones.
The user can choose the capacity and the numbers of the batteries according to their
desire. The connection is shown as following:

Note
The BAT+ of the UPS connect poles is connected to the anode of the positive battery, the
BAT- is connected to the cathode of the positive battery and the anode of the negative battery,
the BAT- is connected to the cathode of the negative battery。
Factory default setting for battery quantity is 30pcs and for battery capacity is 65AH (charger
current 6A). When connecting 32/34/36/38/40/42/44/46/48pcs or 50pcs batteries, please re-set
desired battery quantity and its capacity after UPS starts at AC mode. Charger current could be
adjusted automatically according to battery capacity selected. All related settings can be done
through LCD panel or monitoring software.

CAUTION!
Ensure correct polarity battery string series connection. i.e. inter-tier and inter
block connections are from (+) to (-)terminals.
Don’t mix batteries with different capacity or different brands, or even mix up new
and old batteries, either.

WARNING!
Ensure correct polarity of string end connections to the Battery Circuit
Breaker and from the Battery Circuit Breaker to the UPS terminals i.e. (+) to
(+) / (-) to (-) but disconnect one or more battery cell links in each tier. Do not
reconnect these links and do not close the battery circuit breaker unless
authorized by the commissioning engineer.
11
3.10 UPS Multi Module Installation
The basic installation procedure of a parallel system comprising of two or more UPS
modules is the same as that of single module system. The following sections introduce the
installation procedures specified to the parallel system.

3.10.1 Cabinet installation

Connect all the UPSes needed to be put into parallel system as below picture.

Make sure each UPS input breaker is in “off” position and there is no any output from each
UPS connected. Battery groups can be connected separately or in parallel, which means the
system itself provides both separate battery and comman battery.

WARNING!
Make sure the N、A（L1）
、B（L2）
、C（L3）lines are correct, and grouding is well
connected.

3.10.2 Parallel cable installation

Shielded and double insulated control cables available must be interconnected in a ring
configuration between UPS modules as shown below. The parallel control board is mounted on
each UPS module. The ring configuration ensures high reliability of the control.

3.10.3 Requirement for the parallel system

A group of paralleled modules behave as one large UPS system but with the advantage of
presenting higher reliability. In order to assure that all modules are equally utilized and comply
with relevant wiring rules, please follow the requirements below:

12
 1) All UPS modules must be of the same rating and be connected to the same bypass
source.
2) The outputs of all the UPS modules must be connected to a common output bus.
3) The length and specification of power cables including the bypass input cables and the
UPS output cables should be the same. This facilitates load sharing when operating in
bypass mode.

3.11 Computer access

◆One end of a RS232 communication cable connect to the computer, the other end connect to
the RS232 port on the UPS.
◆Open the software Muser4000, click “system” button.

◆A window of “Software Parameter Setting” comes out as below, COM choose according to the
UPS , baud rate choose 9600, protocol choose “HIP”, then save this setting.

◆On the main page of Muser4000, click the button of “Append”, then goes to a window of
“Append equipment”.
13
◆Put the UPS name into “Equipment Name”, and UPS’ ID address into “Equipment address”.

◆Click the button “Append”, then the connection between UPS & computer is accomplished.

Note

When powered by inverter, it is necessary to turn off the inverter before

setting the voltage and frequency level in PC.

14
 4 Operation
4.1 Operation Modes
The UPS is a double-conversion on-line UPS that may operate in the following alternative
modes：

Normal mode
The rectifier/charger derives power from the AC Mains and supplies DC power to the
inverter while floating and boosting charge the battery simultaneously. Then, the inverter
converts the DC power to AC and supplies to the load.

Battery mode (Stored Energy Mode)

If the AC mains input power fails, the inverter, which obtains power from the battery,
supplies the critical AC load. There is no power interruption to the critical load. The UPS will
automatically return to Normal Mode when AC recovers.

Bypass mode
If the inverter is out of order, or if overload occurs, the static transfer switch will be activated
to transfer the load from the inverter supply to bypass supply without interruption to the critical
load. In the event that the inverter output is not synchronized with the bypass AC source, the
static switch will perform a transfer of the load from the inverter to the bypass with power
interruption to the critical AC load. This is to avoid paralleling of unsynchronized AC sources.
This interruption is programmable but typically set to be less than an electrical cycle e.g. less
than 15ms (50Hz) or less than 13.33ms (60Hz).

ECO Mode

When the UPS is at AC Mode and the requirement to the load is not critical, the UPS can be
set at ECO mode in order to increase the efficiency of the power supplied. At ECO mode, the
UPS works at Line-interactive mode, so the UPS will transfer to bypass supply. When the AC is
out of set window, the UPS will transfer from bypass to Inverter and supplies power from the
battery, then the LCD shows all related information on the screen.

Parallel redundancy mode (system expansion)

To achieve a higher capacity and / or increase reliability, the outputs of up to four UPS
modules can be programmed to operate in parallel and the built-in parallel controller in each UPS
ensures automatic load sharing.

4.2 Turn on/off UPS

4.2.1 Connecting with Utility

CAUTION!
MAKE SURE GROUNDING IS PROPERLY DONE!
◆ Set the Battery Breaker to the “ON” position according to the user’s manual.

◆ Switch ON UPS input switch.

15
 CAUTION
Check to see if the load is safely connected with the output of the UPS. If the
load is not ready to receive power from the UPS, make sure that it is safely
isolated from the UPS output terminals
The internal fan of the UPS starts spinning, the UPS is performing
self-diagnostics until buzzer beeps twice to show the UPS is normal. Then, the
UPS goes to bypass supply, Utility LED and Bypass LED turn Green, the inverter
is starting up now. When the inverter is checked “normal”, the UPS goes to
working mode and the load is supplied by the inverter now.
No matter the UPS is operated normally or not, the LCD display will indicate
current status. The top lines display the UPS operational status and the bottom
lines indicate alarm conditions when they occur.

4.2.2 Black(Cold) start procedure

CAUTION!
Follow these procedures when the input AC Utility Failure, but battery is normal

◆ Turn on the battery switch.

The battery will feed the Auxiliary power board.
◆ Trigger the cold start buttons of the modules respectively as the position 5 of the above
drawing.
When battery normal, rectifier starts operation, 30s later, inverter starts and
operates, INV and output light up.

CAUTION!
Wait f or approximately 30 seconds before you press the black start key

4.2.3 Test procedure

CAUTION!
The UPS is operating normally.It may take 60 seconds to boost up
the system and perform self-test completely.
◆ Switch off the MAINS to simulate utility failure, the rectifier will turn off and the battery
should feed the inverter without interruption. At this time, the LEDs of battery should be turned
on.

◆ Switch on the MAINS to simulate utility recovery, the rectifier will restart automatically
after 20 seconds and the inverter will supply to the load. It is suggested to use Dummy loads
for testing. The UPS can be loaded up to its maximum capacity during load test。
16
4.2.4 Inverter Off
When the Utility is normal, press “Off” button for approx. 1 sec until beep sounds, the inverter
LED will extinguish, the bypass LED on, then the UPS turns to bypass supply.

When the UPS is on battery mode or without AC, press “Off” button for approx. 1 sec until
beep sounds, the output of the UPS is off, fan stop spinning.After 60 seconds, all the LED on the
LCD display extinguish.

4.2.5 Disconnecting with Utility

CAUTION!
This procedure should be followed to completely shut down the UPS and the
LOAD. After all power switches, isolators and circuit breakers are opened,
there will be no output.

◆After the inverter is off, turn the Utility and battery breakers to “OFF”, then the
LCD display will extinguish completely and fan stops spinning in 60 seconds.
If there are external battery packs connected, please also turn the battery
breaker to “OFF”.

WARNING!
Wait for about 5 minutes for the internal D.C. bus bar capacitors to be
completely discharged.

4.2.6 Parallel setting

◆Connect the UPS with computer. Power on the UPS.
◆ Open Muser4000 software, after connecting with the UPS successfully, click
“System”->“User Set”

17
 ◆Click ‘Set” at “User Set” window;

◆At the window of “Data Set”, click “Work Mode”,, choose “Parallel” for the value, then
click “Set” as shown in below picture. If the UPS sounds a “beep”, that means the setting is
correct.

◆At the window of “Data Set”, click “Ups ID”, write a value for the parallel UPS ID at the
right side, such as “1”, then click “Set” as shown in below picture. If the UPS sounds a “beep”,
that means the setting is correct.

18
 CAUTION
After changing the parallel system ID, the connection between
Muser4000 and equipment might be interrupted. If it occurs, please
re-connect in accordance with the instruction described before.

CAUTION
Parallel cable cannot be connected when setting the parallel parameters.
◆After setting the UPSes needed to be paralleled, power off all the UPSes. Connect all the
UPSes according to “parallel cable installation”, and then power on the UPSes.

4.3 The Display

4.3.1 System LCD display

Overview of the operating panel of the UPS

（1）LED indicator （2）LCD Display （3）scroll button： enter to next item （4）OFF button
（5）ON button
Note: The operation will be available when all the above buttons are pressed and kept for 1s.

19
Introduction

The display provides more functions than those described in this manual.

CAUTION!
The setting of most parameter cannot be set when the UPS is in
inverter mode.

Main Page: default display

Date and time UPS status

UPS work mode

Bypass data

Display item
Process diagram

Input data Output data

Battery data ID number

Temperature
Event and fault

Data : Press key for short time to select Data page, the Data page displays input
data and output data

INPUT : Press Off key for short time to enter Data, the first page is mains input and
bypass input data.

20
OUTPUT : press key for short time to move to the second page, the second page of Data is
Output data.

OUTPUT : press key for short time to move to the third page, the third page of data is
Battery data.

21
LOAD : press key for short time to move to the fourth page, the fourth page of data is Load data.

INSIDE: press key for short time to move to the fifth page, the fifth page of data is Inside data.

22
INFO : Press key for long time to exit Data, and press key for short time move to Info, this
page displays the version of the LCD/LED, DSP and the UPS type.

SETTING-User : press key for short time to move to the setting page, then press OFF key
to enter setting-user page. Press key to change item, press OFF key
to enter item and press key to change value, press OFF key
confirm the setting.

23
 Test Now : Press OFF key to enter test now item, press to select test value and press
OFF to confirm. The Battery manual test command can test battery discharge for 10s,
10min and to EOD.

Maintenance : Press + OFF key to enter maintenance and display a password window,
press change the number and press OFF to select the value, the password is “1121”.

24
Maintenance-System : press OFF key to enter item and confirm value, press change value.
Operating mode : Normal, Parallel, ECO
V_Output Grade : 220/230/240
F_Output Grade : 50 and 60
F_mode : CVCF and Non-CVCF
Test type : 10s, 10min and EOD
Test Cycle : 1~30 days
Equipment ID : Device address is 1~15, it is the MODBUS device address used for RS232
& RS485 communication ports. ①Press to set the address 1~15. When
battery temperature sensor is open, choose 1~10 & 13~15; If it’s parallel
mode and device address <= parallel quantity, device address= parallel ID.
②Press “ON” to exit the device address setting and save the device
address setting value and parallel ID setting. (Note: Under single UPS mode,
until this device address setting save and exit, single UPS setting is done.)
Temp. Sensor SW : ON or OFF. OFF means turn off the sensor switch, ON means turn on
the sensor switch, send query command to sensor with address 11,12
every second.

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Maintenance-Bypass : press OFF key to enter item and confirm value, press change value.
Upper Limit : 5%, 10%, 15%, 20%, 25%
Lower Limit : -10%, -20%, -30%, -45%
F_Range : 1%, 2%, 4%, 5%, 10%

Maintenance-Battery : press OFF key to enter item and confirm value, press change value.
Number : 16/18/20 PCS Total (Note: there are 8/9/10pcs for each “+” string and “-“ string)
Capacity : 7~2000Ah
Boost charge : Enable or disable
Group : 1~8
V-Boost : 2.30~2.40, step is 0.01V
V-Float : 2.20~2.29, step is 0.01V
V-EOD :1.75V or 1.80V
I-Maxcharge : 1~10A

26
Maintenance-Parallel : This item can be selected after the work mode is set to parallel. Press OFF
key to enter item and confirm value, press change value.

ID : 1~4. UPS ID.

Number : 1~4, UPS parallel max number
Redu. Num : 1~3, redundancy UPS number

Record : Displays event records and fault records

Record-Event : Press to select Up or Down or Delete. Press OFF key to confirm.

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Record-Fault : Press to select Up or Down or Delete. Press OFF key to confirm.

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 4.6 Display Messages/Troubleshooting
This section lists the event and alarm messages that the UPS might display. The messages
are listed in alphabetical order. This section is listed with each alarm message to help you
troubleshoot problems .
Display messages
Operational Status and Mode(s)
LED
item Content Displayed
alarm Bps output Bat. output Mains output
1 Initialized Extinguish Extinguish Extinguish Extinguish
2 Standby Mode Extinguish Extinguish X Extinguish
3 No Output Extinguish Extinguish X Extinguish
4 Bypass Mode Extinguish Light X Extinguish
5 Utility Mode Extinguish Extinguish X Light
6 Battery Mode Extinguish Extinguish Light Extinguish
7 Battery Self-diagnostics Extinguish Extinguish Light Extinguish
8 Inverter is starting up Extinguish X X Extinguish
9 ECO Mode Extinguish X X X
10 EPO Mode Light Extinguish X Extinguish
11 Maintenance Bypass Mode Extinguish Extinguish Extinguish Extinguish
12 Fault Mode Light X X X

Note “X”shows that it will determined by other conditions.

Alarm Information

Event log UPS Alarm Warning Buzzer LED

1 Rectifier Fault Beep continuously Fault LED lit
Inverter fault(Including Inverter
2 Beep continuously Fault LED lit
bridge is shorted)
3 Inverter Thyristor short Beep continuously Fault LED lit
4 Inverter Thyristor broken Beep continuously Fault LED lit
5 Bypass Thyristor short Beep continuously Fault LED lit
6 Bypass Thyristor broken Beep continuously Fault LED lit
7 Fuse broken Beep continuously Fault LED lit
8 Parallel relay fault Beep continuously Fault LED lit
9 Fan fault Beep continuously Fault LED lit
10 Reserve Beep continuously Fault LED lit
11 Auxiliary power fault Beep continuously Fault LED lit
12 Initializtion fault Beep continuously Fault LED lit
13 P-Battery Charger fault Beep continuously Fault LED lit
14 N-Battery Charger fault Beep continuously Fault LED lit
15 DC Bus over voltage Beep continuously Fault LED lit

29
 16 DC Bus below voltage Beep continuously Fault LED lit
17 DC bus unbalance Beep continuously Fault LED lit
18 Soft start failed Beep continuously Fault LED lit
19 Rectifier Over Temperature Twice per second Fault LED lit
20 Inverter Over temperature Twice per second Fault LED lit
21 Input neutral loss Twice per second Fault LED lit
22 Battery reverse Twice per second Fault LED lit
23 Cable connection error Twice per second Fault LED lit
24 CAN comm. Fault Twice per second Fault LED lit
25 Parallel load sharing fault Twice per second Fault LED lit
26 Battery over voltage Once per second Fault LED blinking
27 Mains Site Wiring Fault Once per second Fault LED blinking
28 Bypass Site Wiring Fault Once per second Fault LED blinking
29 Output Short-circuit Once per second Fault LED blinking
30 Rectifier over current Once per second Fault LED blinking
31 Bypass over current Once per second BPS LED blinking
32 Overload Once per second INV or BPS LED blinking
33 No battery Once per second Battery LED blinking
34 Battery under voltage Once per second Battery LED blinking
35 Battery low pre-warning Once per second Battery LED blinking
36 Internal Communication Error Once per 2 seconds Fault LED blinking
37 DC component over limit. Once per 2 seconds INV LED blinking
38 Parallel Overload Once per 2 seconds INV LED blinking
39 Mains volt. Abnormal Once per 2 seconds Battery LED lit
40 Mains freq. abnormal Once per 2 seconds Battery LED lit
41 Bypass Not Available BPS LED blinking
42 Bypass unable to trace BPS LED blinking
43 Inverter on invalid
44 Reserve
45 inverter not on
46 Output switch not ON Once per 3 seconds

4.7 Options
SNMP card: internal SNMP / external SNMP optional

◆ Loosen the 2 torque screws (on each side of the card).

◆ Carefully pull out the card. Reverse the procedure for re-installation

The slot called SNMP supports the MEGAtec protocol. We advise that NetAgent II-3 port is
also a tool to remotely monitor and manage any UPS system

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 NetAgent II-3Ports supports the Modem Dial-in (PPP) function to enable the remote control
via the internet when the network is unavailable.
In addition to the features of a standard NetAgent Mini, NetAgent II has the option to add
NetFeeler Lite to detect temperature, humidity, smoke and security sensors. Thus, making
NetAgent II a versatile management tool. NetAgent II also supports multiple languages and is
setup for web-based auto language detection.

Typical topology of the UPS Network Management

Relay card
A 10-pin terminal is supported to offer the signals of Bypass, Utility Failure, Inverter On,
Battery Low, UPS fault, UPS Alarm, and UPS Shutdown.
The relay communication card contains six dry contact outputs and one dry input. The inputs
and outputs are factory programmed according to functions listed in the table

Table: Relay Contacts (communication card)

Port Function
1 Utility Failure
2 Battery Low
3 Battery Low
4 On Bypass
Output
5 UPS Fault
6 Inverter On
7 Main’s voltage abnormal
8 COM
9 ON
Input
10 OFF

CAUTION!
The output contacts numbers for a second relay board installed will be 1 to 7.
Contacts are NO (normally open) type.

Available at no charge in any of Overview of the relay card

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 Appendix 1 Specifications
MODEL 10kVA 15kVA 20kVA
Capacity (VA/Watts) 10k/10k 15k/15k 20k/20k
INPUT
380/400/415Vac,(3Ph+N+PE)
Nominal voltage
220/230/240Vac,(L+N+PE)
Operating voltage range 208~478Vac
Operating frequency range 40Hz-70Hz
Power factor ≥0.99
Harmonic distortion (THDi) 3% (100% non-linear load)
Max. voltage:220V: +25%(optional +10%,+15%,+20% ) ;
230V: +20%(optional +10%,+15% ) ;
Bypass voltage range
240V: +15%(optional +10%)
Min. voltage: -45% (optional -20%,-30%)
Bypass Frequency range Frequency protection range: ±10%
Generator input Support
OUTPUT
380/400/415Vac,(3Ph+N+PE)
Rated voltage
220/230/240Vac,(L+N+PE)
Voltage regulation ±1%
Power factor 1.0
Output Line Mode ±1%/±2%/±4%/±5%/±10% of the rated frequency(optional)
frequency Bat. Mode (50/60±0.2%)Hz
Crest factor 3:1
Harmonic distortion ≤2% with linear load
(THD) ≤5% with non-linear load
Efficiency UP to 94.5% UP to 95.0%
BATTERY
±180/192/204/216/228/240/252/264/276/288/300Vdc
Battery voltage
(30/32/34/36/38/40/42/44/46/48/50pcs optional)
Charge Current(A)
(charge current can be
Max. current 18A Max. current 20A
set according to battery
capacity installed)
SYSTEM FEATURES
Transfer time Utility to Battery : 0ms; Utility to bypass: 0ms
Load≤110%: last 60min, ≤125%: last 10min, ≤150%: last 1min, ≥
Line Mode
150% turn to bypass mode immediately
Overload Load≤110%: last 10min, ≤125%: last 1min, ≤150%: last 5S, ≥
Bat. Mode
150% shut down UPS immediately
Bypass Mode Breaker( Load < 125%, long-term operation)
Short circuit Hold Whole System
RS232, RS485, Parallel, Intelligent Slot(SNMP card/ Relay
Communication interface card(optional)), BMS (optional),EPO port, Output port,
MAINTAIN-AUXSWS
ENVIRONMENTAL
Operating temperature 0℃～40℃
32
Storage temperature -25℃～55℃
Humidity range 0～95% (non-condensing)
Altitude < 1500m
Noise level <55dB <58dB
PHYSICAL
Dimension D×W×H (mm) 443x131(3U)x580 mm
Net weight (kg) 29 31 32
STANDARDS
Safety IEC/EN62040-1,IEC/EN60950-1
IEC/EN62040-2,IEC61000-4-2,IEC61000-4-3,IEC61000-4-4,IEC6100
EMC
0-4-5,IEC61000-4-6,IEC61000-4-8

Appendix 2 Problems and Solution

In case the UPS cannot work normally, it might be wrong in installation, wiring or operation.
Please check these aspects first. If all these aspects are checked without any problem, please
consult with local agent right away and provide below information.
（1） Product model name and serial number.
（2） Try to describe the fault with more details, such as LCD display info, LED lights status, etc.
Read the user manual carefully, it can help a lot for using this UPS in the right way. Some FAQ
(frequently asked questions) may help you to troubleshoot your problem easily.

No. Problem Possible reason Solution

Input power supply is not Measure if the UPS input
Utility is connected but connected; voltage/frequency is within the
the UPS cannot be Input voltage low; window.
1 powered ON. The input switch of the UPS is Check if UPS input is switched
not switched on. on
Utility normal but Utility The input breakers of the UPS
Switch on the input breaker;
LED does not light on, are not switched on;
2 Make sure the input cable is
and the UPS operates at input cable is not well
well connected.
battery mode connected
The UPS does not indicate Output cable does not well Make sure the output cable is
any failure, but output do connected; well connected;
3 not have voltage Output breaker do not switch on Switch on the output breaker.
If the UPS operates at battery
Utility voltage exceeds UPS mode, please pay attention to
4 Utility LED is flashing
input range. the remaining backup time
needed for your system.
Switch on the battery breaker.
Battery breaker does not switch If batteries are damaged,
Battery LED is flashing on, or batteries are damaged, need to replace whole group
but or battery is reversely batteries, Connect the battery
5
no charge voltage and connected. cables correctly;
current Battery number and capacity Go to LCD setting of the
are not set correctly. battery number and capacity,
set the correct data.
Buzzer beeps every 0.5
seconds and LCD Overload Remove some load
6
display “output overload”
Make sure the load is not in
Buzzer long beeps, LCD The UPS output is in short
7 short circuit, and then restart
display “29”fault code circuit
the UPS.
33
 Set the UPS working mode to
The UPS is set to ECO mode,
The UPS only works on UPS type(non-parallel) or to
8 or the transfer times to bypass
bypass mode reset the times of transferring
mode are limited.
to bypass or re-start the UPS
Battery switch is not properly Close the battery switch:
closed: Change the fuse:
Battery fuse is not open: Recharge the battery:
9 Cannot Black start Or Battery low: Power ON the UPS with AC to
Battery quantity set wrong; set the battery quantity
Power breaker in the rear panel &quantity;
not switch ON. Switch on the power breaker.
Buzzer beeps
continuously and LCD Consult with your local agent
10 UPS is out of order
indicates 1,3,5,9,15, etc for repair
fault codes

Appendix 3 RS232 communication port definition

Definition of Male port：

Connection between PC RS232 port and UPS RS232 port

PC RS232 port UPS RS232 port

Pin 2 Pin 2 UPS send,PC receive
Pin 3 Pin 3 PC send,UPS receive
Pin 5 Pin 5 ground

Available function of RS232

◆ Monitor UPS power status.

◆ Monitor UPS alarm info.
◆ Monitor UPS running parameters.
◆ Timing off/on setting.
RS-232 communication data format

Baud rate ---------- 9600bps

Byte length ---------- 8bit
End bit ---------- 1bit
Parity check ---------none

CAUTION!
RS232 and RS485 interface cannot be used at the same time, you
can only use one of them at one time.
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 Appendix 4 RS485 communication port definition
Definition of port：

Connection between the Device’s RS485 port and UPS RS485 port.

device(RJ45) UPS(RJ45) Description

Pin 1/5 Pin 1/5 485+ “A”

Pin 2/4 Pin 2/4 485 - “B”

Pin7 Pin7 +12Vdc

Pin8 Pin8 GND

Available function of RS485

◆ Monitor UPS power status.

◆ Monitor UPS alarm info.

◆ Monitor UPS running parameters.

◆ Timing off/on setting.

◆Battery environment temperature monitoring.

◆Charging voltage modulation depending on batteries temperature

Communication data format

Baud rate ---------- 9600bps

Byte length ---------- 8bit

End bit ---------- 1bit

Parity check ---------none

CAUTION!

RS232 and RS485 interface cannot be used at the same time, you
can only use one of them at one time.

RS485 port pin7 is 12Vdc!

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 Appendix 5 BAT_T communication port definition
Definition of port：

Connection between the Temperature senator RJ45 port and UPS RJ45 port.

Temperature senator（RJ45) UPS BAT_T（RJ45） Description

Pin 1/5 Pin 1/5 TX
Pin 2/4 Pin 2/4 RX
Pin 7 Pin 7 12V
Pin 8 Pin 8 GND

Available function of BAT_T

◆Battery environment temperature monitoring.
◆Charging voltage modulation depending on batteries’ temperature.

Appendix 6 Output port definition

Definition of port：
Connection diagram：

Function description:
Connect to the Output port on external PDU module (optional), UPS will detect the Output beaker
status(ON/OFF) in PDU module to control the inverter output in parallel mode.
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 Appendix 7 MAINTAIN-AUXSWS port definition

Definition of port：
Connection diagram：

Function description:
Connect to the MAINTAIN-AUXSWS port on external PDU module (optional), UPS will turn off
inverter and transfer to inner BYPASS when it detects the Maintenance Breaker is activated.

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 Appendix 8 EPO instruction

Definition of port：
Connection diagram：

Connection between the button and UPS EPO port.

Button UPS EPO Description

Pin 1 Pin 1 EPO

Pin 2 Pin 2 GND

◆A remote emergency stop switch (Dry contact signal and “normally open” - not provided) can be
installed in a remote location and connection through simple wires to the EPO connector.

◆The remote switch can be connected to several UPS’s in a parallel architecture allowing the user to
stops all units at once.

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 Appendix 9 BMS communication port definition (Optional)

Definition of port：

Connection between the Lithium battery BMS equipment RJ45 port and UPS BMS RJ45 port.

Lithium battery BMS (RJ45) UPS BMS RJ45 Description

Pin 1 5V
Pin 2 5V
Pin 3 Pin 3 485+ “A”
Pin 4 Pin 4 485+ “A”
Pin 5 Pin 5 485 - “B”
Pin 6 Pin 6 485 - “B”
Pin 7 Pin 7 GND
Pin 8 Pin 8 GND

Available function of RS485

◆ Monitor the current operation parameters of battery box (battery capacity and backup time).

39