EN
USER MANUAL
3Ph/1Ph 10K~20K RACK Online UPS
Uninterruptible Power Supply System
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Please comply with all warnings and operating
instructions in this manual strictly. Save this
manual properly and read carefully the following
instructions before installing the unit. Do not
operate this unit before reading through all safety
information and operating instructions carefully.
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Table of Contents
1. SAFETY AND EMC INSTRUCTIONS..................................¡ERROR! MARCADOR NO DEFINIDO.
1.1. TRANSPORTATION AND STORAGE .............................................................. ¡ERROR! MARCADOR NO DEFINIDO.
1.2. PREPARATION .......................................................................................... ¡ERROR! MARCADOR NO DEFINIDO.
1.3. INSTALLATION .......................................................................................... ¡ERROR! MARCADOR NO DEFINIDO.
1.4. OPERATION ............................................................................................. ¡ERROR! MARCADOR NO DEFINIDO.
1.5. STANDARDS............................................................................................. ¡ERROR! MARCADOR NO DEFINIDO.
2. INSTALLATION AND OPERATION .....................................¡ERROR! MARCADOR NO DEFINIDO.
2.1. UNPACKING AND INSPECTION.................................................................... ¡ERROR! MARCADOR NO DEFINIDO.
2.2. REAR PANEL VIEW ................................................................................... ¡ERROR! MARCADOR NO DEFINIDO.
2.3. SINGLE UPS INSTALLATION ...................................................................... ¡ERROR! MARCADOR NO DEFINIDO.
2.4. UPS INSTALLATION FOR PARALLEL SYSTEM ................................................................................................. 9
2.5. SOFTWARE INSTALLATION.......................................................................................................................... 11
3. OPERATIONS .................................................................................................................................12
3.1. BUTTON OPERATION ................................................................................ ¡ERROR! MARCADOR NO DEFINIDO.
3.2. LED INDICATORS AND LCD PANEL............................................................................................................. 12
3.3. AUDIBLE ALARM........................................................................................................................................ 14
3.4. SINGLE UPS OPERATION ..........................................................................................................................14
3.5. PARALLEL OPERATION.............................................................................. ¡ERROR! MARCADOR NO DEFINIDO.
3.6. ABBREVIATION MEANING IN LCD DISPLAY ................................................. ¡ERROR! MARCADOR NO DEFINIDO.
3.7. LCD SETTING.......................................................................................... ¡ERROR! MARCADOR NO DEFINIDO.
3.8. OPERATING MODE/STATUS DESCRIPTION .................................................................................................. 24
3.9. FAULT CODE ............................................................................................................................................ 28
3.10. WARNING INDICATOR ............................................................................. ¡ERROR! MARCADOR NO DEFINIDO.
3.11.
WARNING CODE .................................................................................... ¡ERROR! MARCADOR NO DEFINIDO.
4. TROUBLE SHOOTING ........................................................¡ERROR! MARCADOR NO DEFINIDO.
5. STORAGE AND MAINTENANCE........................................¡ERROR! MARCADOR NO DEFINIDO.
5.1. STORAGE ................................................................................................ ¡ERROR! MARCADOR NO DEFINIDO.
5.2. MAINTENANCE ......................................................................................... ¡ERROR! MARCADOR NO DEFINIDO.
6. SPECIFICATIONS................................................................ ¡ERROR! MARCADOR NO DEFINIDO.
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1. Safety and EMC instructions
Please read carefully the following user manual and the safety instructions before installing the unit or using the
unit!
1.1. Transportation and Storage
Please transport the UPS system only in the original package to protect against shock and impact.
The UPS must be stored in a ventilated and dry place.
1.2. Preparation
Condensation may occur if the UPS system is moved directly from cold to warm environment. The
UPS system must be absolutely dry before being installed. Please allow at least two hours for the
UPS system to acclimate the environment.
Do not install the UPS system near water or in moist environments.
Do not install the UPS system where it would be exposed to direct sunlight or nearby heater.
Do not block ventilation holes in the UPS housing.
1.3. Installation
Do not connect appliances or devices that would overload the UPS (e.g. big motor-type equipment)
to the UPS output sockets or terminal.
Place cables in such a way that no one can step on or trip over them.
Do not block air vents in the housing of UPS. The UPS must be installed in a location with good
ventilation. Ensure enough space on each side for ventilation.
UPS has provided earthed terminal, in the final installed system configuration, equipotential earth
bonding to the external UPS battery cabinets.
The UPS can be installed only by qualified maintenance personnel.
An appropriate disconnect device as short-circuit backup protection should be provided in the
building wiring installation.
An integral single emergency switching device that prevents further supply to the load by the UPS in
any mode of operation should be provided in the building wiring installation.
Connect the earth before connecting to the building wiring terminal.
Installation and wiring must be performed in accordance with the local electrical laws and
regulations.
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1.4. Operation
Do not disconnect the earth conductor cable on the UPS or the building wiring terminals in any time
since this would cancel the protective earth of the UPS system and of all connected loads.
The UPS system features its own internal current source (batteries). The UPS output sockets or
output terminal blocks may be electrically live even if the UPS system is not connected to the
building wiring outlet.
In order to fully disconnect the UPS system, first press the “OFF” button and then disconnect the
mains.
Ensure that no liquid or other foreign objects can enter into the UPS system, otherwise guarantee
would not be accepted.
The UPS can be operated by any individuals with no previous experience.
1.5. Standards
* Safety
IEC/EN 62040-1-1
* EMI
Conducted Emission: .........................................IEC/EN 62040-2 Category C3
Radiated Emission: ............................................IEC/EN 62040-2 Category C3
*EMS
ESD: ................................................................IEC/EN 61000-4-2 Level 4
RS:.................................................................. IEC/EN 61000-4-3 Level 3
EFT: ..................................................................IEC/EN 61000-4-4 Level 4
SURGE:............................................................IEC/EN 61000-4-5 Level 4
CS:....................................................................IEC/EN 61000-4-6 Level 3
Power-frequency Magnetic field: .................... IEC/EN 61000-4-8 Level 4
Low Frequency Signals: ................................. IEC/EN 61000-2-2
Warning: This is a product for commercial and industrial application in the second
environment-installation restrictions or additional measures may be needed to
prevent disturbances.
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2. Installation and Operation
There are two different types of online UPS: standard and long-run models. Please refer to the following model
table.
Model Type Model Type
10KR 10KR-L
15KR 15KR-L
20KR
Standard
model
20KR-L
Long-run
model
Parallel function is also available for these two types by request and related installation and operation of Parallel
function (called “Parallel model”) will be described in detail in the following chapter.
2.1. Unpacking and Inspection
Unpack the package and check the package contents. The shipping package contains:
● One UPS
● One user manual
● One monitoring software CD
● One RS-232 cable (option)
● One USB cable
● One parallel cable (only available for parallel model)
● One share current cable (only available for parallel model)
● One battery cable (only available for 10K-L)
NOTE: Before installation, please inspect the unit. Be sure that nothing inside the package is damaged during
transportation. Do not turn on the unit and notify the carrier and dealer immediately if there is any damage or
lacking of some parts. Please keep the original package in a safe place for future use.
2.2. Rear Panel View
Diagram 1: 10KR/10KR-L Rear Panel
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Diagram 2: 15KR(L)/20KR(L) Rear Panel
Diagram 3: 10KR/10KR-L Input/Output Terminal Diagram 4: 15KR(L)/20KR(L) Input/Output Terminal
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ry pack rear panel
odel)
le for parallel model)
m 3 and 4 for the details)
bypass switch
f function connector (EPO connector)
r
ith the local electric laws/regulations and the following
rs in the building are enough for the rated capacity of UPS to
t is less
tacle may be burned and destroyed.
necting to the UPS.
4) Prepare wires based on the follo
ng spe
Diagram 5: 10KR batte
1. Share current port (only available for parallel m
2. Parallel port (only availab
3. Intelligent slot
4. External battery terminal
5. Input/Output terminal (Refer to Diagra
6. External Maintenance
7. Input circuit breaker
8. Cooling fan
9. RS-232 communication port
10. USB communication port
11. Emergency power of
12. Output receptacles
13. Grounding terminal
14. Utility input terminal
15. Battery pack output circuit breake
2.3. Single UPS Installation
Installation and wiring must be performed in accordance w
instructions must be executed by professional personnel.
1) Make sure that the mains wire and breake
avoid the hazards of electric shock or fire.
NOTE: Do not use the wall receptacle as the input power source for the UPS, as its rated curren
than the UPS’s maximum input current. Otherwise the recep
2) Switch off the mains switch in the building before installation.
3) Turn off all the connected devices before con
wing table:
Wiri c (AWG)
Model
Input Output Battery Ground
10KR 8 8 8
10KR-L 8 8 8 8
15KR 6 6 6
15KR-L 6 6 6 6
20KR 6 6 6
20KR-L 6 6 6 6
NOTE 1: The cable for 10KR/10KR-L should be able to withstand over 63A current. It is recommended to
use 8AWG or thicker wire for safety and efficiency.
NOTE 2: The cable for 15KR/15KR-L should be able to withstand over 75A current. It is recommended to
use 6AWG or thicker wire for safety and efficiency.
NOTE 3: The cable for 20KR/20KR-L should be able to withstand over 100A current. It is recommended to
use 6AWG or thicker wire for safety and efficiency.
NOTE 4: The selections for color of wires should be followed by the local electrical laws and regulations.
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5) Remove the terminal block cover on the rear panel of UPS. Then connect the wires according to the
following terminal block diagrams: (Connect the earth wire first when making wire connection. Disconnect
the earth wire last when making wire disconnection!)
Terminal Block wiring diagram for 10KR/10KR-L
Terminal Block wiring diagram for 15KR(L)/20KR(L)
NOTE 1: Make sure that the wires are connected tightly with the terminals.
NOTE 2: Please install the output breaker between the output terminal and the load, and the breaker
should be qualified with leakage current protective function if necessary.
6) Put the terminal block cover back to the rear panel of the UPS.
Warning: (Only for standard model)
● Make sure that the UPS is not turned on before installation. The UPS should not be turned on during wiring
connection.
● Do not try to modify the standard model to the long-run model. Particularly, do not try to connect the
standard internal battery to the external battery. The battery type and voltage may be different. If you
connect them together, it may cause the hazard of electric shock or fire!
Warning: (Only for long-run model)
● Make sure a DC breaker or other protection device between UPS and external battery pack is installed. If not,
please install it carefully. Switch off the battery breaker before installation.
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NOTE: Set the battery pack breaker in “OFF” position and then install the battery pack.
● Pay highly attention to the rated battery voltage marked on the rear panel. If you want to change the quantity
of the battery pack, please make sure you modify the setting simultaneously. The connection with wrong
battery voltage may cause permanent damage of the UPS. Make sure the voltage of the battery pack is
correct.
● Pay highly attention to the polarity marking on external battery terminal block, and make sure the correct
battery polarity is connected. Wrong connection may cause permanent damage of the UPS.
● Make sure the protective earth ground wiring is correct. The wire current spec, color, position, connection and
conductance reliability should be checked carefully.
● Make sure the utility input & output wiring is correct. The wire current spec, color, position, connection and
conductance reliability should be checked carefully. Make sure the L/N site is correct, not reverse and
short-circuited.
2.4. UPS Installation for Parallel System
If the UPS is only available for single operation, you may skip this section to the next.
1) Install and wire the UPSs according to the section 2.3.
2) Connect the output wires of each UPS to an output breaker.
3) Connect all output breakers to a major output breaker. Then this major output breaker will directly connect to
the loads.
4) Each UPS is connected to an independent battery pack.
NOTE: The parallel system cannot use one battery pack. Otherwise, it will cause system permanent failure.
5) Refer to the following wiring diagram:
Wiring diagram of parallel system for 10KR/10KR-L
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Wiring diagram of parallel system for 15KR(L)/20KR(L)
2.5. Software Installation
For optimal computer system protection, install UPS monitoring software to fully configure UPS shutdown.
Install CD or visit the website http://www.laparaups.com/en/software.php for the latest software
version.
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3. Operations
3.1. Button Operation
Button Function
ON/Enter Button
¾ Turn on the UPS: Press and hold the button more than 0.5s to turn on the UPS.
¾ Enter Key: Press this button to confirm the selection in setting menu.
OFF/ESC Button
¾ Turn off the UPS: Press and hold the button more than 0.5s to turn off the UPS.
¾ Esc key: Press this button to return to last menu in setting menu.
Test/Up Button
¾ Battery test: Press and hold the button more than 0.5s to test the battery while in
AC mode or CVCF mode.
¾ UP key: Press this button to display next selection in setting menu.
Mute/Down Button
¾ Mute the alarm: Press and hold the button more than 0.5s to mute the buzzer.
Please refer to section 3.4.9 for details.
¾ Down key: Press this button to display previous selection in setting menu.
Test/Up +
Mute/Down Button
¾ Press and hold the two buttons simultaneous more than 1s to enter/escape the
setting menu.
* CVCF mode means converter mode.
3.2. LED Indicators and LCD Panel
LED Ind
icators:
There are 4 LEDs on front panel to show the UPS working status:
Mode LED Bypass Line Battery Fault
UPS On ● ● ● ●
No Output mode ○ ○ ○ ○
Bypass mode ● ○ ○ ○
AC mode ○ ● ○ ○
Battery mode ○ ○ ● ○
CVCF mode ○ ● ○ ○
Battery Test ● ● ● ○
ECO mode ● ● ○ ○
Fault ○ ○ ○ ●
Note: ● means LED is lighting, and ○ means LED is faded.
LCD Panel:
LCD panel
LED indicators
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Display Function
Backup time information
Indicates the backup time in pie chart.
Indicates the backup time in numbers.
H: hours, M: minutes, S: seconds
Fault information
Indicates that the warning and fault occurs.
Indicates the fault codes, and the codes are listed in details in section 3.9.
Mute operation
Indicates that the UPS alarm is disabled.
Output & Battery voltage information
Indicates the output voltage, frequency or battery voltage.
Vac: output voltage, Vdc: battery voltage, Hz: frequency
Load information
Indicates the load level by 0-25%, 26-50%, 51-75%, and 76-100%.
Indicates overload.
Indicates the load or the output is short.
Mode operation information
Indicates the UPS connects to the mains.
Indicates the battery is working.
Indicates the bypass circuit is working.
Indicates the ECO mode is enabled.
Indicates the Inverter circuit is working.
Indicates the output is working.
Battery information
Indicates the Battery capacity by 0-25%, 26-50%, 51-75%, and 76-100%.
Indicates the battery is fault.
Indicates low battery level and low battery voltage.
Input & Battery voltage information
Indicates the input voltage or frequency or battery voltage.
Vac: Input voltage, Vdc: battery voltage, Hz: input frequency
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3.3. Audible Alarm
Description
Buzzer status Muted
UPS status
Bypass mode
Beeping once every 2 minutes
Battery mode
Beeping once every 4 seconds
Fault mode
Beeping continuously
Yes
Warning
Overload
Beeping twice every second
Low battery
Battery unconnected
Over charge
EPO enable
Fan failure
Over temperature
Charger failure
L1 IP fuse broken
Battery fuse broken
Overload 3 times in 30min
IP Neutral loss
IP Phase abnormal
Converter current unbalanced
Inverter current unbalanced
Cover of maintain switch open
Different bypass situations in parallel system
Phase auto adapt failure
Beeping once every second
No
Fault
Bus start failure
Bus over
Bus under
Bus unbalance
Converter over current
Inverter soft start failure
High Inverter voltage
Low Inverter voltage
Inverter output short circuited
Negative power fault
Battery SCR short circuited
Inverter relay short circuited
Battery fuse broken in battery mode
Parallel communication failure
Parallel output current unbalanced
Over temperature
Overload
UPS Model abnormal
Continuously beeping
Yes
3.4. Single UPS Operation
1. T urn on the UPS with utility power supply (in AC mode)
1) After power supply is connected correctly, set the breaker of the battery pack at “ON” position (this step
is only available for long-run model). Then set the input breaker at “ON” position. At this time, the fan is
running and the UPS enter to power on mode for initialization, several seconds later, UPS operates in
Bypass mode and supplies power to the loads via the bypass.
The UPS is operating in Bypass mode.
NOTE: When UPS is in Bypass mode, the output voltage will directly power from utility after you switch
on the input breaker. In Bypass mode, the load is not protected by UPS. To protect your precious devices,
you should turn on the UPS. Refer to next step.
2) Press and hold the “ON” button for 0.5s to turn on the UPS and the buzzer will beep once.
3) A few seconds later, the UPS will enter to AC mode. If the utility power is abnormal, the UPS will
operate in Battery mode without interruption.
NOTE: When the UPS is running out battery, it will shut down automatically at Battery mode. When the utility
power is restored, the UPS will auto restart in AC mode.
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2. T urn on the UPS without utility power supply (in Battery mode)
1) Make sure that the breaker of the battery pack is at “ON” position (only for long-run model).
2) Press the “ON” button to set up the power supply for the UPS, UPS will enter to power on mode. After
initialization, UPS will enter to No Output mode, then press and hold the “ON” button for 0.5s to turn on
the UPS, and the buzzer will beep once.
3) A few seconds later, the UPS will be turned on and enter to Battery mode.
3. Connect devices to UPS
After the UPS is turned on, you can connect devices to the UPS.
1) Turn on the UPS first and then switch on the devices one by one, the LCD panel will display total load
level.
2) If it is necessary to connect the inductive loads such as a printer, the in-rush current should be
calculated carefully to see if it meets the capacity of the UPS, because the power consumption of this
kind of loads is too big.
3) If the UPS is overload, the buzzer will beep twice every second.
4) When the UPS is overload, please remove some loads immediately. It is recommended to have the total
loads connected to the UPS less than 80% of its nominal power capacity to prevent overload for system
safety.
5) If the overload time is over acceptable time listed in spec at AC mode, the UPS will automatically
transfer to Bypass mode. After the overload is removed, it will return to AC mode. If the overload time is
over acceptable time listed in spec at Battery mode, the UPS will become fault status. At this time, if
bypass is enabled, the UPS will power to the load via bypass. If bypass function is disabled or the input
power is not within bypass acceptable range, it will cut off output directly.
4. Charge the batteries
1) After the UPS is connected to the utility power, the charger will charge the batteries automatically
except in Battery mode or during battery self-test.
2) Suggest charging batteries at least 10 hours before use. Otherwise, the backup time may be shorter
than expected time.
3) Make sure the battery numbers setting on the control board (Please refer to the section 3.4.12 for
detailed setting) is consistent to real connection.
5. Battery mode operation
1) When the UPS is in Battery mode, the buzzer will beep according to different battery capacity. If the
battery capacity is more than 25%, the buzzer will beep once every 4 seconds; if the battery voltage
drops to the alarm level, the buzzer will beep quickly (once every sec) to remind users that the battery is
at low level and the UPS will shut down automatically soon. Users could switch off some non-critical
loads to disable the shutdown alarm and prolong the backup time. If there is no more load to be
switched off at that time, you have to shut down all loads as soon as possible to protect the devices or
save data. Otherwise, there is a risk of data loss or load failure.
2) In Battery mode, if buzzer sound annoys, users can press the Mute button to disable the buzzer.
3) The backup time of the long-run model depends on the external battery capacity.
4) The backup time may vary from different environment temperature and load type.
5) When setting backup time for 16.5 hours (default value from LCD panel), after discharging 16.5 hours,
UPS will shut down automatically to protect the battery. This battery discharge protection can be
enabled or disabled through LCD panel control. (Refer to 3.7 LCD setting section)
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6. T est the batteries
1) If you need to check the battery status when the UPS is running in AC mode/CVCF mode/ECO mode,
you could press the “Test” button to let the UPS do battery self-test.
2) Users also can set battery self-test through monitoring software.
7. T urn off the UPS with utility power supply in AC mode
1) Turn off the inverter of the UPS by pressing “OFF” button for at least 0.5s, and then the buzzer will beep
once. The UPS will turn into Bypass mode.
NOTE 1: If the UPS has been set to enable the bypass output, it will bypass voltage from utility power to
output sockets and terminal even though you have turned off the UPS (inverter).
NOTE 2: After turning off the UPS, please be aware that the UPS is working at Bypass mode and there
is risk of power loss for connected devices.
2) In Bypass mode, output voltage of the UPS is still present. In order to cut off the output, switch off the
input breaker. A few seconds later, there is no display shown on the display panel and UPS is complete
off.
8. T urn off the UPS without utility power supply in Battery mode
1) Turn off the UPS by pressing “OFF” button for at least 0.5s, and then the buzzer will beep once.
2) Then UPS will cut off power to output and there is no display shown on the display panel.
9. Mute the buzzer
1) To mute the buzzer, please press the “Mute” button for at least 0.5s. If you press it again after the
buzzer is muted, the buzzer will beep again.
2) Some warning alarms can’t be muted unless the error is fixed. Please refer to section 3.3 for the details.
10. Operation in warning status
1) When Fault LED flashes and the buzzer beeps once every second, it means that there are some
problems for UPS operation. Users can get the fault code from LCD panel. Please check the trouble
shooting table in chapter 4 for details.
2) Some warning alarms cannot be muted unless the error is fixed. Please refer to section 3.3 for details.
11. Operation in Fault mode
1) When Fault LED illuminates and the buzzer beeps continuously, it means that there is a fatal error in the
UPS. Users can get the fault code from display panel. Please check the trouble shooting table in
chapter 4 for details.
2) Please, check the loads, wiring, ventilation, utility, battery and so on after the fault occurs. Don’t try to
turn on the UPS again before solving the problems. If the problems can’t be fixed, please contact the
distributor or service people immediately.
3) For emergency case, please cut off the connection from utility, external battery and output immediately
to avoid more risk or danger.
12. Operation of changing battery numbers
1) This operation is only available for professional or qualified technicians.
2) Turn off the UPS. If the load could not be cut off, you should remove the cover of maintenance bypass
switch on the rear panel and turn the maintenance switch to “BPS” position first.
3) Switch off the input breaker, and switch off the battery breaker (only available for long-run model).
4) Remove the cabinet, and then modify the jumper on the control board to set the battery numbers (refer
to NOTE below). Then disconnect battery wire for standard model and modify the battery pack carefully.
After complete the changes, put the cabinet back.
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NOTE: JS3 setting on the control board: please shorts the Pin1 & Pin2 for 18 pcs batteries; shorts the Pin3 &
Pin4 19 pcs batteries; and shorts the Pin5 & Pin6 for 20 pcs batteries.
5) Switch on the input breaker and the UPS will enter Bypass mode. If the UPS is in maintenance Bypass
mode, turn the maintenance switch to “UPS” position and then turn on the UPS.
3.5. Parallel Operation
1. Parallel system connection
First of all, please make sure all UPSs are parallel model and have the same configuration.
1) Turn on each UPS to AC mode respectively (Refer to section 3.4. (1). Then, measure the output voltage of
each UPS to check if the voltage difference between actual output and setting value is less than 1.5V
(typical 1V) with multimeter. If the difference is more than 1.5V, please calibrate the voltage by configuring
inverter voltage adjustment (Refer to Program 15, section 3.7.) in LCD setting. If voltage difference
remains more than 1.5V after calibration, please contact your local distributor or service centre for help.
2) Calibrate the output voltage measurement by configuring output voltage calibration (Refer to Program 16,
section 3.7.) in LCD setting to make sure the error between real output voltage and detected value of UPS
is less than 1V.
3) Turn off each UPS (Refer to section 3.4.(7). Then, follow the wiring procedure in section 2.4.
4) Remove the cover of parallel share current cable port on the UPS, connect each UPS one by one with the
parallel cable and share current cable and then screw the cover back.
5) Turn on the parallel system with utility power supply (in AC mode)
a) Turn on the input breaker of each UPS. After all UPSs enter to bypass mode, measure the voltage
difference between the output of each UPS with a multimeter. If the voltage difference is less than 1V,
it means all connections are correct. If the difference is more than 1V, recheck if the wirings are
connected correctly.
b) Turn on the output breaker of each UPS
c) Turn on each UPS in turns, after a while, the UPSs will enter to AC mode synchronously and then, the
parallel system installation is complete.
5) Turn on the parallel system without utility power supply (in Battery mode).
a) Turn on the battery breaker (only available in long-run model) and output breaker of each UPS.
NOTE: 1.The output breaker of each UPS should be turned on when turning on the parallel system
without utility power supply. Otherwise, the parallel system cannot be operated.
NOTE: 2.It is not allowed to share one battery pack for long-run UPSs in parallel system. Each UPS
should be connected to its own battery pack.
b) Turn on any UPS. A few seconds later, the UPS will enter to battery mode.
c) Then turn on another UPS. A few seconds later, the UPS will enter to battery mode and add to the
parallel system.
d) If you have the third UPS, follow the same procedure as c). Then the parallel system is complete.
If you need more detailed information, please contact your supplier or service center for parallel
operation instruction.
2. Add one new unit into the parallel system
1) You cannot add one new unit into the parallel system when the whole system is running. You must cut
off the load and shutdown the system.
2) Make sure all the UPS are parallel models and follow the wiring in section 2.4.
3) Install the new parallel system refers to the previous section.
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3. Remove one unit from the parallel system
There are two methods to remove one unit from the parallel system:
Method 1
:
1) Press the “OFF” key twice and each time should last for more than 0.5s. Then, the UPS will enter bypass
mode or no output mode without output.
2) Turn off the output breaker of this unit, and then turn off the input breaker of this unit.
3) After it shuts down, you can turn off the battery breaker (for long-run model). Remove the parallel cable and
share current cable. Then, remove the unit from the parallel system.
Method 2
:
1) If the bypass is abnormal, you cannot remove the UPS without interruption. You must cut off load and shut
down the system.
2) Make sure that bypass setting is enabled in each UPS and then turn off the running system. All UPSs will
transfer to bypass mode. Remove all the maintenance bypass covers and set the maintenance switches
from “UPS” to “BPS”. Turn off all the input breakers and battery breakers in parallel system.
3) Turn off the output breaker and remove the parallel cable and share current cable from the UPSs that you
want to remove. Then, remove UPSs from the parallel system.
4) Turn on the input breaker of the remaining UPSs and the system will transfer to bypass mode. Set the
maintenance switches from “BPS” to “UPS and put the maintenance bypass covers back.
5) Turn on the remaining UPSs by following section 3.5.(1)
Warning: (Only for the parallel system)
● Before turning on the parallel system to activate inverter, make sure that all unit’s maintenance switch at
the same position.
● When parallel system is turned on to work through inverter, please do not operate the maintenance switch
of any unit.
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LA-ON31-RACK
3.6. Abbreviation Meaning in LCD Display
Abbreviation Display content Meaning
ENA
Enable
DIS
Disable
ATO
Auto
BAT
Battery
NCF
Normal mode (not CVCF mode)
CF
CVCF mode
SUB
Subtract
ADD
Add
ON
On
OFF
Off
FBD
Not allowed
OPN
Allow
RES
Reserved
N.L.
Neutral line loss
CHE
Check
OP.V
Output Voltage
PAR
Parallel, 001 means the first UPS
3.7. LCD Setting
There are three parameters to set up the UPS. Refer to following diagram.
Parameter 1: It is for program alternatives. There
are 14 programs to set up. Refer to below table.
Parameter 2 and parameter 3 are the setting
options or values for each program.
Note: The following order of setting code only presents when UPS is in Bypass Mode or no-output mode. The
setting code number will change its number under other modes. For example, when the UPS is in AC mode, the
total available settings are only 6. Then, setting code of “Bypass mode setting” will become 01, “Battery backup
time setting” will become 02, and so on.
Parameter 1
Parameter 2 Parameter 3
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Programs available list for parameter 1:
Code Description
Bypass/
No-output mode
AC
Mode
ECO
Mode
CVCF
Mode
Battery
Mode
Battery
Test
01
Output voltage
Y*
02
Output frequency
Y
03
Voltage range for bypass
Y
04
Frequency range for bypass
Y
05
ECO mode enable/disable
Y
06
Voltage range for ECO mode
Y
07
ECO mode frequency range setting
Y
08
Bypass mode setting
Y Y
09
Battery backup time setting
Y Y Y Y Y Y
10
Programmable output setting
11
Shutdown point f/programmable output
These functions are not supported by the Rack model
12 Reserved/Neutral Loss **
13 Battery voltage adjustment Y Y Y Y Y Y
14 Charger voltage adjustment Y Y Y Y Y Y
15 Inverter voltage adjustment Y Y Y
16 Output voltage calibration Y Y Y
17 Phase auto adapt enable/disable*** Y
*Y (Yes) means that this program can be set in this mode.
**It is only available to operate when a loss of neutral line is detected. Otherwise, it will display “
” in program
setting menu.
***This function can get UPS input phase sequence more flexible. If it is enabled, UPS can adapt several kind of
phase order even it works like single phase UPS. If it is disabled, UPS can only work under standard input phase
sequence between L1/L2/L3. For more details about LCD setting, please refer to program 17 below.
Note: All parameter settings will be saved only when UPS shuts down normally with internal or external battery
connection. (Normal UPS shutdown means turning off input breaker in bypass/no output mode)
z 01: Output voltage
Interface Setting
Parameter 3: Output voltage
You may choose the following output voltage in parameter 3:
208: Presents output voltage is 208Vac
220: Presents output voltage is 220Vac
230: Presents output voltage is 230Vac
240: Presents output voltage is 240Vac
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z 02: Output frequency
Interface Setting
60 Hz, CVCF mode
50 Hz, Normal mode
ATO
Parameter 2: Output Frequency
Setting the output frequency. You may choose following three
options in parameter 2:
50.0Hz: The output frequency is setting for 50.0Hz.
60.0Hz: The output frequency is setting for 60.0Hz.
ATO: If selected, output frequency will be decided according to the
latest normal utility frequency. If it is from 46Hz to 54Hz, the output
frequency will be 50.0Hz. If it is from 56Hz to 64Hz, the output
frequency will be 60.0Hz. ATO is default setting.
Parameter 3: Frequency mode
Setting output frequency at CVCF mode or not CVCF mode. You
may choose following two options in parameter 3:
CF: Setting UPS to CVCF mode. If selected, the output frequency will
be fixed at 50Hz or 60Hz according to setting in parameter 2. The
input frequency could be from 46Hz to 64Hz.
NCF: Setting UPS to normal mode (not CVCF mode). If selected, the
output frequency will synchronize with the input frequency within
46~54 Hz at 50Hz or within 56~64 Hz at 60Hz according to setting in
parameter 2. If 50 Hz selected in parameter 2, UPS will transfer to
battery mode when input frequency is not within 46~54 Hz. If 60Hz
selected in parameter 2, UPS will transfer to battery mode when input
frequency is not within 56~64 Hz.
*If Parameter 2 is ATO, the Parameter 3 will show the current
frequency.
Note: For single unit, it will have bypass output for a couple of seconds after the unit is powered on.
Therefore, to avoid damage on connected devices, it is strongly suggested to add an additional
Output relay board for CVCF application.
z 03: Voltage range for bypass
Interface Setting
Parameter 2: Set the acceptable low voltage for bypass. Setting
range is from 110V to 209V and the default value is 110V.
Parameter 3: Set the acceptable high voltage for bypass. Setting
range is from 231V to 276V and the default value is 264V.
04: Frequency range for bypass
Interface Setting
Parameter 2: Set the acceptable low frequency for bypass.
50 Hz system: Setting range is from 46.0Hz to 49.0Hz.
60 Hz system: Setting range is from 56.0Hz to 59.0Hz.
The default value is 46.0Hz/56.0Hz.
Parameter 3: Set the acceptable high frequency for bypass.
50 Hz: Setting range is from 51.0Hz to 54.0 Hz.
60 Hz: Setting range is from 61.0Hz to 64.0Hz.
The default value is 54.0Hz/64.0Hz.
z 05: ECO mode enable/disable
Interface Setting
Parameter 3: Enable or disable ECO function. You may choose
following two options:
DIS: disable ECO function
ENA: enable ECO function
If ECO function is disabled, voltage range and frequency range for
ECO mode still can be set, but it is meaningless unless the ECO
function is enabled.
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z 06: Voltage range for ECO mode
Interface
Setting
Parameter 2: Low voltage point in ECO mode. The setting range is
from 5% to 10% of the nominal voltage.
Parameter 3: High voltage point in ECO mode. The setting range is
from 5% to 10% of the nominal voltage.
z 07: Frequency range for ECO mode
Interface Setting
Parameter 2: Set low voltage point for ECO mode.
50 Hz system: Setting range is from 46.0Hz to 48.0Hz.
60 Hz system: Setting range is from 56.0Hz to 58.0Hz.
The default value is 48.0Hz/58.0Hz.
Parameter 3: Set high voltage point for ECO mode.
50 Hz: Setting range is from 52.0Hz to 54.0 Hz.
60 Hz: Setting range is from 62.0Hz to 64.0Hz.
The default value is 52.0Hz/62.0Hz.
z 08: Bypass mode setting
Interface Setting
Parameter 2:
OPN: Bypass allowed. When selected, UPS will run at Bypass mode
depending on bypass enabled/disabled setting.
FBD: Bypass not allowed. When selected, it’s not allowed for running
in Bypass mode under any situations.
Parameter 3:
ENA: Bypass enabled. When selected, Bypass mode is activated.
DIS: Bypass disabled. When selected, automatic bypass is
acceptable, but manual bypass is not allowed. Manual bypass
means users manually operate UPS for Bypass mode. For example,
pressing OFF button in AC mode to turn into Bypass mode.
z 09: Battery backup time setting
Interface Setting
Parameter 3:
000~999: Set the maximum backup time from 0min to 999min. UPS
will shut down to protect battery after backup time arrives. The
default value is 990min.
DIS: Disable battery discharge protection and backup time will
depend on battery capacity.
z 10: Programmable output setting
Interface Setting
THIS FUNCTION IS NOT SUPPORTED BY THE RACK MODEL
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z 11: Shutdown point for programmable output
Interface Setting
THIS FUNCTION IS NOT SUPPORTED BY THE RACK MODEL
z 12: Reserved/Neutral Line Loss
Interface Setting
When input neutral line is correctly detected, “
” will be
displayed in parameter 2 and parameter 3.
When a loss of input Neutral line is detected, this program will
become “input Neutral line detecting” menu. It will display “
” in
parameter 2 and “
” in parameter 3. When it occurs, please
re-connect the input Neutral line well. Then, press the “Enter” key to
activate input Neutral line detecting. If it’s connected well and
correctly detected, it will show “
” in parameter 2 and parameter
3 when entering the setting menu next time
z 13: Battery voltage adjustment
Interface Setting
Parameter 2: Select “Add” or “Sub” function to adjust battery voltage
to real figure.
Parameter 3: the voltage range is from 0V to 9.9V, the default value
is 0V.
z 14: Charger voltage adjustment
Interface Setting
Parameter 2: you may choose Add or Sub to adjust charger voltage
Parameter 3: the voltage range is from 0V to 9.9V, the default value
is 0V.
NOTE:
*Before making voltage adjustment, be sure to disconnect all
batteries first to get the accurate charger voltage.
*We strongly suggest using the default value (0). Any modification
should be suitable to battery specifications.
z 15: Inverter voltage adjustment
Interface Setting
Parameter 2: you may choose Add or Sub to adjust inverter voltage
Parameter 3: the voltage range is from 0V to 9.9V, the default value
is 0V.
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z 16: Output voltage calibration
Interface Setting
Parameter 2: it always shows OP.V as output voltage.
Parameter 3: it shows the internal measurement value of the output
voltage and you can calibrate it by pressing Up or Down according to
the measurement fro an external voltage-meter. The calibration
result will be effective by pressing Enter. The calibration range is
limited within ±9V. This function is normally used for parallel
operation.
z 17: Phase auto adapt enable/disable
Interface Setting
Parameter 2: it always shows PH.A as phase auto adapt function.
Parameter 3: Enable or disable phase auto adapt function. You may
choose following two options:
DIS: Disable phase auto adapt function. Then, the UPS only can
accept the phase order which L2 delay L1 120º, L3 delay L2 120º.
ENA: Enable phase auto adapt function. Then, the UPS can accept
either inputs of L1, L2, L3 in the same phase or the phase order
which L2 delay L1 120º, L3 delay L2 120ºor L2 delay L1 240º, L3
delay L2 240º.
3.8. Operating Mode/Status Description
The following table shows LCD display for operating modes and status.
(1) If the UPS is in normal operation, it will show four screens one by one, that represent 3 phase input voltage
(L1, L2, L3) and frequency in turns.
(2) If parallel UPS systems are successfully set up, it will show one more screen with “PAR” in parameter 2 and
assigned number in parameter 3 as below parallel screen diagram. The master UPS will be default assigned
as “001” and slave UPSs will be assigned as either “002” or “003”. The assigned numbers may be changed
dynamically in the operation;
Parallel screen Warning screen
(3) If some errors occur in the UPS, it will show one more screen to represent the warning situation. In the
warning screen, it can show up to 3 error codes and each code indicates one error. You can find the meaning
of each error code in the warning code table.
Operating mode/status
Description When UPS is powered on, it will enter into this mode for a few seconds for
initializing the CPU and system.
UPS Power On
LCD Display
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Operating mode/status
Description When L1 is out of acceptable range or bypass is disable (or forbidden), UPS
will enter into no-output mode if powering on or turning off the UPS. It means
that the UPS has no output. Alarm beeps every two minutes.
No-output mode
LCD Display
Description When the input voltage is within acceptable range, UPS will provide pure and
stable AC power to output. The UPS will also charge the battery at AC mode.
AC mode
LCD display
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Operating mode/status
Description When the input voltage is within voltage regulation range and ECO mode is
enabled, UPS will bypass voltage to output for energy saving.
ECO mode
LCD display
Description When input frequency is within 46~64Hz, the UPS can be set at a constant
output frequency 50Hz or 60Hz. The UPS will still charge battery in this mode.
CVCF mode
LCD display
Description When the input voltage is beyond the acceptable range or power failure, UPS
will backup power from battery and alarm will beep every 4 seconds.
Battery mode
LCD display
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Operating mode/status
Description When input voltage is within acceptable range and bypass is enabled, turn off
the UPS and it will enter Bypass mode. Alarm beeps every two minutes.
Bypass mode
LCD display
Description When UPS is in AC mode or CVCF mode, press “Test” key for more than
0.5s. Then the UPS will beep once and start “Battery Test”. The line between
I/P and inverter icons will blink to remind users. This operation is used to
check the battery status.
Battery Test
LCD display
Description When a has fault happened, it will display fault messages in LCD panel.
Fault status
LCD display
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3.9. Fault Code
Fault
code
Fault event Icon Fault
code
Fault event Icon
01 Bus start failure None 1A Negative power fault None
02 Bus over None 21 Battery SCR short circuited None
03 Bus under None 24 Inverter relay short circuited None
04 Bus unbalanced None 29 Battery fuse broken in batt. mode None
06 Converter over current None 31 Parallel communication failure None
11 Inverter soft start failure None 36 Parallel output current unbalance None
12 High Inverter voltage None 41 Over temperature None
13 Low Inverter voltage None 43 Overload
14 Inverter output short circuited
46 Incorrect UPS setting None
3.10. Warning Indicator
Warning Icon (flashing) Alarm
Battery low
Beeping every second
Overload
Beeping twice every second
Battery unconnected
Beeping every second
Over charge
Beeping every second
EPO enable
Beeping every second
Fan failure/Over temperature
Beeping every second
Charger failure
Beeping every second
I/P fuse broken
Beeping every second
Overload 3 times in 30min
Beeping every second
3.11. Warning Code
Warning code Warning Event Warning code Warning Event
01 Battery unconnected 10 L1 IP fuse broken
02 IP Neutral loss or IP L2/L3
fuse broken
21 Line loss situation is different in parallel
system
04 IP phase abnormal 22 Bypass loss situation is different in parallel
system
07 Over charge 33 Locked in bypass after overload 3 times in
30 min
08 Low battery 34 Converter current unbalanced
09 Overload 35 Battery fuse broken
0A Fan failure 36 Inverter inter-current unbalanced
0B EPO enable 3A Cover of maintain switch is open
0D Over temperature 3B Phase auto adapt failure
0E Charger failure 3C Utility extremely unbalanced
3D Bypass unstable
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4. Trouble Shooting
If the UPS system does not operate correctly, please solve the problem by using the table below.
Symptom Possible cause Remedy
No indication and alarm in the front
display panel even though the mains is
normal.
The AC input power is not
connected well.
Check if input cable firmly
connected to the mains.
The icon and the warning code
flash on LCD display and alarm
beeps every second.
EPO function is enabled.
Set the circuit in closed position
to disable EPO function.
The icon and flash on
LCD display and alarm beeps every
second.
The external or internal battery
is incorrectly connected.
Check if all batteries are
connected well.
UPS is overload.
Remove excess loads from UPS
output.
UPS is overloaded. Devices
connected to the UPS are fed
directly by the electrical network
via the Bypass.
Remove excess loads from UPS
output.
The icon and flash on
LCD display and alarm beeps twice
every second.
After repetitive overloads, the
UPS is locked in the Bypass
mode. Connected devices are
fed directly by the mains.
Remove excess loads from UPS
output first. Then shut down the
UPS and restart it.
Fault code is shown as 43. The icon
lights on LCD display and
alarm beeps continuously.
UPS is overload too long and
becomes fault. Then UPS shut
down automatically.
Remove excess loads from UPS
output and restart it.
Fault code is shown as 14, the icon
lights on LCD display, and
alarm beeps continuously.
The UPS shut down
automatically because short
circuit occurs on the UPS
output.
Check output wiring and if
connected devices are in short
circuit status.
Fault code is shown as 1, 2, 3, 4, 6, 11,
12, 13, 1A, 21, 24, 29, 35, 36, 41 or 46
on LCD display and alarm beeps
continuously.
A UPS internal fault has
occurred. There are two
possible results:
1. The load is still supplied, but
directly from AC power via
bypass.
2. The load is no longer
supplied by power.
Contact your dealer
Batteries are not fully charged
Charge the batteries for at least
7 hours and then check
capacity. If the problem still
persists, consult your dealer.
Battery backup time is shorter than
nominal value
Batteries defect
Contact your dealer to replace
the battery.
The icon and flash on LCD
display and alarm beeps every second.
Fan is locked or not working; or
the UPS temperature is too
high.
Check fans and notify dealer.
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5. Storage and Maintenance
5.1. Storage
Before storing, charge the UPS at least 7 hours. Store the UPS covered and upright in a cool, dry location.
During storage, recharge the battery in accordance with the following table:
Storage Temperature Recharge Frequency Charging Duration
-25°C - 40°C Every 3 months 1-2 hours
40°C - 45°C Every 2 months 1-2 hours
5.2. Maintenance
The UPS system operates with hazardous voltages. Repairs may be carried out only by qualified
maintenance personnel.
Even after the unit is disconnected from the mains, components inside the UPS system are still
connected to the battery packs which are potentially dangerous.
Before carrying out any kind of service and/or maintenance, disconnect the batteries and verify that no
current is present and no hazardous voltage exists in the terminals of high capability capacitor such as
BUS-capacitors.
Only persons are adequately familiar with batteries and with the required precautionary measures may
replace batteries and supervise operations. Unauthorized persons must be kept well away from the
batteries.
Verify that no voltage between the battery terminals and the ground is present before maintenance or
repair. In this product, the battery circuit is not isolated from the input voltage. Hazardous voltages may
occur between the battery terminals and the ground.
Batteries may cause electric shock and have a high short-circuit current. Please remove all
wristwatches, rings and other metal personal objects before maintenance or repair, and only use tools
with insulated grips and handles for maintaining or repairing.
When replace the batteries, install the same number and same type of batteries.
Do not attempt to dispose of batteries by burning them. This could cause battery explosion. The
batteries must be rightly deposed according to local regulation.
Do not open or destroy batteries. Escaping electrolyte can cause injury to the skin and eyes. It may be
toxic.
Please replace the fuse only with the same type and amperage in order to avoid fire hazards.
Do not disassemble the UPS system.
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6. Specifications
MODEL LA-ON31-10KR (L) LA-ON31-15KR (L) LA-ON31-20KR (L)
CAPACITY*
10000VA / 8000W 15000VA / 12000W 20000VA / 16000W
INPUT
Low Line Loss 110 VAC (L-N) ± 3 % at 50% Load; 176 VAC (L-N) ± 3 % at 100% Load
Low Line Comeback Low Line Loss Voltage + 10V
High Line Loss 300 VAC (L-N) ± 3 %
Voltage
Range
High Line Comeback High Line Loss Voltage - 10V
Frequency Range 46Hz ~ 54 Hz @ 50Hz system 56Hz ~ 64 Hz @ 60Hz system
Phase Three phase with ground
Power Factor
≧ 0.99 at 100% Load
OUTPUT
Output voltage 208/220/230/240VAC
AC Voltage Regulation ± 1%
Frequency Range
(Synchronized Range)
46Hz ~ 54 Hz @ 50Hz system 56Hz ~ 64 Hz @ 60Hz system
Frequency Range (Batt. Mode) 50 Hz ± 0.1 Hz or 60Hz ± 0.1 Hz
AC mode
100%~110%: 10min、110%~130%: 1min、>130% : 1sec
Overload
Battery mode
100%~110%: 30sec、110%~130%: 10sec、>130% : 1sec
Current Crest Ratio 3:1 max
Harmonic Distortion
≦2% @ 100% Linear Load; ≦5% @ 100% Non-linear Load
Line ↔ Battery
0 ms
Inverter ↔ Bypass
0 ms
Transfer
Time
Inverter ↔ ECO
<10 ms
EFFICIENCY
AC mode > 89%
Battery Mode > 86% > 88% > 87%
BATTERY
Type & Numbers 12 V / 9 Ah x 20 12 V / 9 Ah x 40
Recharge Time 9 hours recover to 90% capacity
Charging Current 1 A ± 10% (max.) 2 A ± 10% (max.)
Standard
Model
Charging Voltage 14.4 V ± 1%
Type Depending on applications
Numbers 18 - 20
Charging Current 4 A ± 10% (max.)
Long-run
Model
Charging Voltage 14.4 V ± 1%
PHYSICAL
Dimension,
DXWXH (mm)
UPS: 668 x 438 x 133 (3U)
Battery pack: 580 x 438 x 133 (3U)
UPS: 668 x 438 x 266 (6U)
Battery pack: 580 x 438 x 133 (3U) x 2 pcs
Outline
Net Weight (kgs)
UPS: 22
Battery Pack: 63
UPS: 45
Battery Pack: 63 x 2 pcs
Dimension,
DXWXH(mm)
UPS: 870 x 580 x 250
Battery pack: 870 x 580 x 250
UPS: 870 x 580 x 381
Battery pack: 870 x 580 x 250 x 2 pcs
Packaging
Net Weight (kgs)
UPS: 26
Battery Pack: 67
UPS: 50
Battery Pack: 67 x 2 pcs
ENVIRONMENT
Operation Temperature 0 ~ 40°C (the battery life will down when > 25°C)
Operation Humidity <95 % and non-condensing
Operation Altitude** <1000m
Acoustic Noise Level Less than 58dB @ 1 Meter Less than 60dB @ 1 Meter
MANAGEMENT
Smart RS-232 or USB Supports Windows® 2000/2003/XP/Vista/2008, Windows® 7, Linux, Unix, and MAC
Optional SNMP Power management from SNMP manager and web browser
* Derate capacity to 60% of capacity in CVCF mode and to 90% when the output voltage is adjusted to 208VAC.
**If the UPS is installed or used in a place where the altitude is over 1000m, the output power must be derated 1% per 100m.
***Product specifications are subject to change without further notice.
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