Effekta THOR 31 User manual

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 single 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, The UPS
meets the world’s advanced level.
Read this manual carefully before installation
This manual provides technical support to the operator of the equipment.

1
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 Cabinet Outlook ......................................................................................................................4
3.3 UPS module appearance........................................................................................................7
3.4 UPS Module LCD control panel.............................................................................................7
3.5 Installation notes.....................................................................................................................7
3.6 External Protective Devices...................................................................................................8
3.7 Power Cables...........................................................................................................................9
3.8 Power cable connect ..............................................................................................................9
3.9 Battery connection................................................................................................................10
3.10 Online UPS Modules Replacement ...................................................................................12
3.11 Parallel system installation ................................................................................................13
3.11.1 Cabinet installation...................................................................................................13
3.11.2 Parallel cable installation.........................................................................................13
3.11.3 Requirement for the parallel system ......................................................................13
4. Operation.................................................................................................................. 14
4.1 Operation Modes...................................................................................................................14
4.2 Turn on/off UPS.....................................................................................................................14
4.2.1 Restart procedure.......................................................................................................14
4.2.2 Test procedure ............................................................................................................15
4.2.3 Black (Cold) start procedure .....................................................................................15
4.2.4 Maintenance bypass...................................................................................................16
4.2.5 Shut down procedure.................................................................................................17
4.2.6 Startup procedure for parallel system .....................................................................17
4.3 The Display ............................................................................................................................18
4.3.1 System LCD display ...................................................................................................18
4.3.2 UPS Module LCD display...........................................................................................25
4.3.3 Monitoring module control panel..............................................................................28
4.4 Display Messages/Troubleshooting ...................................................................................29
4.5 Options...................................................................................................................................34
Appendix 1 Specifications .......................................................................................... 35
Appendix 2 Problems and Solution ........................................................................... 36
Appendix 3 RS232 communication port definition................................................... 37
Appendix 4 RS485 communication port definition................................................... 38

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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 andrelative
laws, otherwise it will result in personnel injury or equipment damage. Safetyinstructions in
this manual act as a supplementary for the local safety instructions. Our company will not
assume the liability that caused by disobeying 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

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2.1 Summarization
2. Main Features
Our UPS is a kind of three-in- single -out high frequency online UPS, it provides three
specifications: The 6-50kVA. 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
◆ 19-inch standard cabinet
1.4-meter high cabinets are provided according to the user’s requirement.
◆ Modularized design
◆ High power-density design
The height of the single module is 3U, a standard 1.4m cabinet can hold 5 pieces
modules can reach maximum as below:
30kVA cabinet: 5 x 6kVA modules
50kVA cabinet: 5 x 10kVA modules
45kVA cabinet: (3+1) x15kVA modules ( 3pcs for power upgrade + 1pcs for redundancy )
◆ N+X parallel redundancy
This series UPS adopts N+X parallel redundancy design, user can set different redundancy
according to the importance of the load. While the redundancy modules are setmore than
two, the availability of UPS system will achieve 99.999%, which may satisfy the required
reliability of the critical load connected. Through LCD display setting, you may configure the
required quantity of the redundancy unit. When the load connected is over the number of
the redundancy, the UPS will alert right away. The design of the MTBF (Meantime before
Failure) is up to 100,000 hours.
This series can set the number of redundancy modules. When the load exceeds the
redundancy setting, the UPS can still work normally and simultaneously send out
corresponding warning as long as the load doesn’t exceed the total capacity of modules.
◆ Parallel redundant control system
◆ Optimizing distributed convergence for the cabinet
◆ Separated Bypass
◆ Common Battery
◆ Configurable Battery Voltage
6-10kVA：16-20pcs
15kVA：32-40pcs

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◆ Automatic charge current adjustment according to battery capacity connected.
◆ 3-Stage intelligent charging
◆ Touch-screen Super-large LCD display (Optional)
◆ Each module with individual LCD display
◆ Remote monitoring via SNMP
◆ Optional Accessories available such as Isolation transformer, Distribution Panel, SNMP
Card, Relay Contact Board, etc..
◆ Equip with Maintenance Bypass Switch for easy maintenance purpose.
◆ Superior MTTR (Meantime to repair) & Short shutdown time in maintenance
◆ Centralized monitoring module is also available
◆ EPO function
3.1 Unpack checking
3. Installation
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 Cabinet Outlook
Front View Side View Rear View
（1）front lock （2）LCD Display （3）EPO switch （4）Rear Lock （5）Rear Lock

5
6
7
20
21
26
22
23
24
13
17
15
14
27
25
12
32
37
38
39
11
31
36
10
30
35
9
29
34
8
16
18
19
28
40
41
42
33
43
30/50kVA Front View(internal) 30/50kVA Rear View(terminal block without cover)
30/50kVA Terminal Block of the cabinet（terminal block without cover）
（6）Main Switch of Central Monitor Unit （7）LED display of Central Monitor Unit （8）UPS
Module 1 （ 9 ） UPS Module 2 （ 10 ） UPS Module 3 （ 11 ） UPS Module 4 （ 12 ） UPS Module 5 （ 13 ）
Maintenance switch cover（14）Maintenance switch （15）Bypass Switch（16）O/P Switch （17）
Input switch（18）Battery switch （19）Terminal block for Input, output & battery（20）RS485 port
（21）RS485 port （22）RS232 port （23）OPTION port （24）SNMP port （25）Intelligent
Network port （ 26 ） Dry Contact port （ 27 ） LCD connecting port （ 28 ） Main Switch for UPS Module 1
（29）Main Switch for UPS Module 2 （30）Main Switch for UPS Module 3 （31）Main Switchfor
UPS Module 4 （32）Main Switch for UPS Module 5（33）bypass switch for power module1 （
34）bypass switch for power module 2 （35）bypass switch for power module 3 （36）bypass
switch for power module 4 （37）bypass switch for power module 5 （38）PDU input （39）
PDU Output （ 40 ） Parallel port （ 41 ） SCI Update port,REPO port （ 42 ） Cover for terminal block
（43）Surge protection device

6
27
25
12
31
35
36
37
11
30
34
10
29
33
9
28
32
8
16
18
19
38
39
40
41
45kVA Front View(internal) 45kVA Rear View(terminal block without cover)
45kVA Terminal Block of the cabinet（terminal block without cover）
（ 6 ） Main Switch of Central Monitor Unit （ 7 ） LED display of Central Monitor Unit （ 8 ） module
cover （9）UPS Module 1（10）UPS Module 2（11）UPS Module 3（12）UPS Module 4 （13）
Maintenance switch cover（14）Maintenance switch （15）Bypass Switch（16）O/P Switch （17）
Input switch（18）Battery switch （19）Terminal block for Input, output & battery（20）RS485 port
（21）RS485 port （22）RS232 port （23）OPTION port （24）SNMP port （25）Intelligent
Network port （ 26 ） Dry Contact port （ 27 ） LCD connecting port （ 28 ） Main Switch for UPS Module 1
（29）Main Switch for UPS Module 2 （30）Main Switch for UPS Module 3 （31）Main Switch
for UPS Module 4 （32）bypass switch for power module 1 （33）bypass switch for power
module 2 （34）bypass switch for power module 3 （35）bypass switch for power module 4 （36）
PDU input （37）PDU Output （38）Parallel port （39）SCI Update port,REPO port （40）
Cover for terminal block （41）Surge protection device

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3.3 UPS module appearance
Front View
Rear View
Side View
（1）handle （2）screw holes （3）module connector slot （4）fan （5）UPS Module
input switch （6）UPS Module bypass switch
3.4 UPS Module LCD control panel
LCD control panel introduction
（1）LED（from top to bottom: “alarm”, “bypass output”, “battery output”, “mains output”）
（2）LCD display （3）scroll button （4）Off button （ 5 ） On button (battery cold start switch)
3.5 Installation notes
Note: Consider for the convenience of operation and maintenance, the space in front and
back of the cabinet should be left at least 100cm and 80cm respectively when installing the
cabinet.
◆Please place the UPS in a clean, stable environment, avoid the vibration, dust, humidity,
flammable gas and liquid, corrosive. 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.

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◆The environment temperature around 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 mains and activating it for the time required for
recharging the batteries.
◆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%
◆The UPS cooling is depending on fan, so it should be kept in good air ventilation area.
There are many ventilation holes on the front and rear, so they should not be blocked by any
exotic obstacles.
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
of the system.

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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 THEMAINS
DISTRIBUTION PANEL.CHECK TO SEE IF THESE SUPPLIES ARE
ELECTRICALLY ISOLATED, AND POST ANY NECESSARY WARNING
SIGNS TO PREVENT ANY INADVERTENT OPERATION
◆For future expansion purpose, it is economical to install power cable according to
the full rating capacity initially. The diameter of cable is shown below:
UPS cabinet
Cable Dimension
AC Input
(mm2)
Bypass Input
(mm2)
AC Output
(mm2)
DC Input
(mm2)
Grounding
(mm2)
30KVA
10(50*)
50
50
70
50
45KVA
16(95*)
95
95
50
95
50KVA
25(120*)
120
120
120
120
CAUTION!
“*”The input mode of single, please refer to the recommended model
of bypass input!Avoid single phase bypass input and output current is too
large, resulting in abnormal.
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.
Open the UPS rear panel; remove the cover of terminals for wiring easily.

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Warning！
In separate bypass connection, the power distribution copper strip between
bypass input and AC input must be removed.
The AC input and bypass input must be connected to the same neutral.
Choose appropriate power cable.（Refer to the table above）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!
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
Connect the safety earth and any necessary bonding earth cables to the
copper earth screw located on the floor of the equipment below the power
connections. All cabinets in the UPS must be grounded properly.
CAUTION!
The earthing and neutral bonding arrangement must be in accordance with
local and national codes of practice.
3.9 Battery connection
6kVA/10kVA modules(30-50kVA) :the UPS adopts positive and negative double battery
framework, total 16(optional 18/20) in series. A neutral cable is retrieved from the joint between
the cathode of the 8th (9 th/10th) and the anode of the 9th (10th /11 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.
15kVA modules(45kVA) :the UPS adopts positive and negative double battery framework,
total 32(optional 34/36/38/40) in series. A neutral cable is retrieved from the joint between the
cathode of the 16th (17th/18 th/19 th/20th) and the anode of the 17th (18 th/19 th/20th /21 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:
6kVA/10kVA modules

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15kVA module
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.
6kVA/10kVA modules(30-50kVA) :Factory default setting for battery quantity is 16pcs and for
battery capacity is 40AH (charger current 6A). Connecting 18pcs or 20pcs 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. (Also charger current is
selectable). Please refer to “LCD display”
15kVA modules(45kVA) :Factory default setting for battery quantity is 32pcs and for battery
capacity is 40AH (charger current 6A). Connecting 34pcs or 36/38/40pcs 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. (Also charger current is selectable).
Please refer to “LCD display”
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.

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3.10 Online UPS Modules Replacement
For the UPS, modules must be inserted to make a complete UPS system.
The replacement of UPS module is very simple and can be operated online. The control
system of the UPS can detect the inserted or removed module(s) automatically. The user may
operate easily by following the steps mentioned below.
◆NOTE: The UPS module is rather heavy, please move it by two people!
◆Insert module
（1） Remove decorated panel;
（2） Put the UPS module in the cabinet module slot. Push the module along the slot into
the cabinet until the module is inserted properly.
（3） Fix the module with screws (M5) at the positioning screw holes;
（4） Open input switch at modules’ rear panel, and bypass switches accordingly.
(From bottom to top, the order is 1-5 or 10)
（ 5 ） After the modules start up , the system will detect the modules inserted
automatically, and parallel up the modules into whole system.
◆Remove UPS module
Remove the coronal screws on the left side of the module to stop the module
running completely and remove the module after fan stop spinning.
WARNING!
（1）The coronal screw at left side of the module controls the operation of the module. Only after
the screw is tightened, the module can start running. When insert new module, make sure the
screw is tightened properly.
（2）When insert the module under battery mode, please press “ON” button at modules LCD panel
until the module starts.

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3.11 Parallel system installation
The basic installation procedure of a parallel system comprising two or more UPS is the same
as that of single. The following sections introduce the installation procedures specified to the
parallel system.
3.11.1 Cabinet installation
Connect all the UPS 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 common battery. )
WARNING!
Make sure the N,A（L1）,B（L2）,C（L3）lines are correct, and
grounding is well connected.
3.11.2 Parallel cable installation
Remove connectors on the parallel port, and connect parallel cables as shown below.
Shielded and double insulated control cables available must be interconnected in a ring
configuration among UPS modules as shown below. The parallel control board is mounted on
each UPS. The ring configuration ensures high reliability of the control.
3.11.3 Requirement for the parallel system
A parallel system behaves as a large UPS but with the advantage of presenting higher
reliability. In order to assure that all UPS are equally utilized and comply with relevant wiring rules,
please follow the requirements below:
1) All UPS must be of the same rating and be connected to the same source.
2) Bypass input and AC input of main road must be connected to the same Neutral
3) The outputs of all the single UPS must be connected to a common output bus.
4) 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.

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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).
◆Maintenance mode (Manual Bypass)
A manual bypass switch is available to ensure continuity of supply to the critical load when
the UPS is out of order or in repair. This manual bypass switch is fitted for all UPS modules and
bears for equivalent rated load.
◆Redundancy mode
Based on different demands, The UPS can be set as N+X redundancy mode to increase
the reliability to the load connected.
4.2 Turn on/off UPS
4.2.1 Restart procedure
CAUTION!
MAKE SURE GROUNDING IS PROPERLY DONE!
◆ Set the Battery Breaker to the “ON” position according to the user’s manual.
◆ Open the front and rear doors of the UPS to access to the main power switches.
During this procedure the output terminals will become alive.
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
◆ Check the status of the power switch of the monitoring module. Default is set at “ON”.

15
Turn ON the power switch of the monitoring module, so that the UPS system can
communicate normally through the monitoring unit. When hot-swap this monitoring unit, the
power switch must be OFF.
◆ Turn ON output breaker.
◆ Turn ON the input and bypass switches of all UPS modules, which locate at the
modules’ rear panels.
When AC MAINS input voltage within the range, And the rectifiers of the UPS will be
started up in 30 seconds, then the inverter is started completely. When the output breaker is
“ON”, the inverter LED lights up.
4.2.2 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.
4.2.3 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.

16
◆ Turn on the Output switch
◆ 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 and battery LED on
CAUTION!
Wait for approximately 30 seconds before you press the black start key
4.2.4 Maintenance bypass
To supply the load via Mains, you may simply active the internal mechanical bypass switch.
CAUTION!
The load is not protected by the UPS when the internal mechanical bypass
system is active and the power is not conditioned.
Switch to mechanical bypass
CAUTION!
If the UPS is running normally and can be controlled through the display, carry
out steps 1 to 6; otherwise, jump to Step 5.
◆ Open the cover of maintenance switch, the UPS turns to bypass mode
automatically.
◆ Turn on MAINTANCE breaker;
◆ Switch OFF BATTERY breaker;
◆ Switch OFF the MAINS breakers of all modules;
◆ Switch OFF the BYPASS breakers of all modules;
◆ Switch OFF the OUTPUT breaker;
At this time the bypass source will supply to the load through the Maintenance breaker.
Switch to normal operation (from mechanical bypass)
CAUTION!
Never attempt to switch the UPS back to normal operation until you have
verified that there are no internal UPS faults
◆ Open the front and rear doors of the UPS to be easily access to the main power
switches
◆ Turn ON the OUTPUT breaker;
◆ Turn ON the BYPASS breakers of all modules;
◆ Turn ON the MAINS breakers of all modules;
The UPS powers from the static bypass instead of the maintenance bypass, then
the bypass LED will light up;
◆ Switch OFF the maintenance bypass breaker, then the output is supplied by the
bypass of the modules;
◆ Put on the maintenance switch cover;

17
The rectifier will operate normally after 30 seconds. If the inverter works normally, the
system will be transferred from bypass mode to normal mode.
4.2.5 Shut down procedure
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.
◆ Press the INVERTER OFF button on the right side of the operator control
panel for about two seconds;
◆ The Inverter LED will be extinguished and audible alarm comes
simultaneously;
◆ Switch OFF the BATTERY breaker;
◆ Open the UPS door to easily access to the main power switch;
◆ Switch OFF the MAINS breakers of all modules.
◆ Switch OFF the BYPASS breakers of all modules.
◆ Switch OFF the OUTPUT power switch. The UPS shuts down;
◆ To completely isolate the UPS from AC Mains, all input switches of Utility
shall be completely off, which includes the ones for rectifier and bypass;
◆ The primary input distribution panel, which is often located far away from the
UPS area, so a label should be posted to advise service personnel that the
UPS circuit is under maintenance.
WARNING!
Wait for about 5 minutes for the internal D.C. bus bar capacitors to be
completely discharged.
4.2.6 Startup procedure for parallel system
◆ Connect parallel cable, input/output cable, battery cable.
◆ Measure the positive and negative battery pack voltage. Battery breaker is opened
temporarily.
◆ Check if the power switch of monitoring module is closed. The default is closed.
◆ Close the output switch of power distribution unit at the front door.
◆ According to the startup procedure for single unit, set the operation mode of each
UPS: single mode is changed to parallel mode; set the parallel number for each UPS;
up to 4 units can be parallel; set the ID of each cabinet, the ID of each unit must be
different.
◆ Close the breakers of all the power module. Close the external input switch and start
from mains.
◆ After start from mains, check the LCD interface of each UPS to see if the ID, VA is
the same with the actual values.
◆ Close the external battery breaker of each UPS. Check if the charging current
displayed in LCD is normal.
Note!
The UPS cannot be parallel until each single unit is normal.

18
4.3 The Display
4.3.1 System LCD display
Introduction
Overview of the operating panel of the UPS
CAUTION!
The display provides more functions than those
described in this manual.
4.3.1.1 Home page 1, show the UPS operating flow chart, and there are the data entrance of
input, output, battery.
30kVA