Maruson TACOMA LV Series User manual

TACOMA LV SERIES
1KVA / 2KVA / 3KVA
Online Double-Conversion UPS
User Manual
Maruson Technology Corporation | www.marusonusa.com
Tel: [phone] | Toll-free: +1.888.MARUSON (627.8766)
Technical Support: [email protected]
Hours of Operation: Monday –Friday, 9 AM to 5 PM (PT)
© 2022 Maruson Technology Corporation. All rights reserved. Any mention of third-party names and
trademarks the property of their respective holders. Use of them does not imply any affiliation with or
endorsement by them. The information contained herein is subject to change without notice. While
Maruson has made every attempt for the completeness and accuracy of the information, Maruson
assumes no responsibility, and disclaims all liability, for damages resulting from use of this information or
for any errors, omissions, or oversights.

Maruson | Tacoma 1KVA-3KVA User Manual
Table of Contents
1. SAFETY INSTRUCTIONS ...................................................................................2
2. INSTALLATION ...................................................................................................4
2.1. UNPACKING AND INSPECTION...........................................................................4
2.1.1. Unpacking..............................................................................................4
2.1.2. Handling Safety.....................................................................................5
2.2. UPS INSTALLATION .........................................................................................5
2.3. EXTERNAL BATTERY BANK (EBB) INSTALLATION ..............................................5
2.4. POWER MANAGEMENT SOFTWARE...................................................................6
3. PRODUCT INTRODUCTION...............................................................................7
3.1. OPERATION FLOW ...........................................................................................7
3.2. OPERATION MODES.........................................................................................8
3.2.1. Line Mode / Normal Mode.....................................................................9
3.2.2. Standby Mode .......................................................................................9
3.2.3. Bypass Mode.......................................................................................10
3.2.4. Battery Mode.......................................................................................10
3.2.5. Battery Test Mode...............................................................................11
3.2.6. ECO (Economy) Mode ........................................................................11
3.2.7. EPO Mode...........................................................................................12
3.2.8. Fault Mode...........................................................................................12
3.3. DISPLAY INTERFACE ......................................................................................13
3.3.1. Control Panel.......................................................................................13
3.3.2. LCD Module.........................................................................................13
3.4. CONTROL PANEL...........................................................................................14
3.5. REAR PANEL RENDERING ..............................................................................15
3.6. OUTPUT HARDWIRE (2KVA /3KVA MODELS).................................................17
3.7. COMMUNICATION PORTS ...............................................................................18
3.8. USB.............................................................................................................18
3.9. RS232 .........................................................................................................18
3.10. REMOTE NETWORK CARDS .....................................................................18
3.10.1. NMC Card........................................................................................18
3.10.2. AS400 Card.....................................................................................18
4. OPERATION ......................................................................................................19
4.1. TURN ON THE UPS WITH MAINS (AC SOURCE) ..............................................19
4.2. START THE UPS WITH BATTERY POWER (DC COLD START)............................19
4.3. CONNECT EQUIPMENT TO UPS......................................................................19
4.4. CHARGING THE BATTERIES ............................................................................20
4.5. DISCHARGE THE BATTERIES...........................................................................20
4.6. TEST THE BATTERIES ....................................................................................20
4.7. TURN OFF THE UPS WITH MAINS POWER (AC SOURCE)..................................21
4.8. TURN OFF THE UPS IN BATTERY MODE (DC SOURCE) ..................................21
4.9. MUTE THE ALARM..........................................................................................21
4.10. OPERATING WITH WARNING STATUS .........................................................21

Maruson | Tacoma 1KVA-3KVA User Manual
4.11. OPERATING IN FAULT MODE.......................................................................21
4.12. CONTROLLED OUTLET GROUPS (2KVA/3KVA)...........................................22
4.13. CHANGE SETTINGS BY LCD CONTROL PANEL.............................................22
4.13.1. Changing Output Voltage................................................................23
4.13.2. Changing Output Frequency (Battery Mode) ..................................23
4.13.3. Enabling / Disabling Bypass............................................................23
4.13.4. Example of Settings Change...........................................................24
4.14. EVENT LOG AND FAULT LOG ......................................................................25
5. TROUBLESHOOTING.......................................................................................25
5.1. LCD WARNING CODE....................................................................................25
5.2. LCD FAULT CODE.........................................................................................26
5.3. ADDITIONAL TROUBLESHOOTING CONDITIONS ................................................26
6. MAINTENANCE.................................................................................................27
6.1. BATTERY MAINTENANCE................................................................................27
6.2. BATTERY REPLACEMENT ...............................................................................28
6.2.1. UPS & External Battery Banks (EBB) Battery Replacement ..............28
7. TRANSPORTION, STORAGE, AND DISPOSAL..............................................29
7.1. TRANSPORTATION .........................................................................................29
7.2. STORAGE......................................................................................................29
7.3. DISPOSAL .....................................................................................................29
8. PRODUCT SPECIFICATIONS...........................................................................29
8.1. TECHNICAL SPECIFICATIONS*.........................................................................29
8.2. EXTERNAL BATTERY BANK (EBB) SPECIFICATIONS**......................................31
8.3. STANDARDS..................................................................................................31
8.4. FCC CLASS ARADIO FREQUENCY WARNING .................................................32
8.5. CA PROPOSITION 65 WARNING .....................................................................32
9. CUSTOMER SUPPORT.....................................................................................32
10. WARRANTY...................................................................................................33
1. SAFETY INSTRUCTIONS

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CAUTION: RISK OF ELECTRIC SHOCK, FIRE, AND INJURY TO
PERSON. CAREFULLY READ THIS MANUAL BEFORE ATTEMPTING TO
UNPACK, INSTALL, OPERATE, OR SERVICE THE PRODUCT AND
ACCESSORIES AS THEY PERTAIN TO THE RISK OF FIRE, ELECTRIC
SHOCK, OR SERIOUS INJURY TO PERSONS.
Save these instructions. This manual contains important safety instructions
that must be followed to avoid fire, property damage, personal injury, or death.
The warnings, precautions, and instructions mentioned in this manual cannot
cover all possible conditions and situations that may occur. The operator must
understand that common sense and caution are factors which cannot be built
into this product, but must be supplied by the operator. Failure to heed these
warnings may affect the warranty. Do not use this equipment other than its
intended purpose. All repairs and maintenance should be performed by qualified
service personnel only.
1.1. PRE-INSTALLATION & ELECTRICAL SAFETY
•Always adhere to all national and local electrical codes.
•To reduce the risk of fire or electric shock, only install this UPS in a
temperature and humidity controlled indoor environment, free of corrosive and
conductive contaminants. Keep away from direct sunlight, heat, corrosive
gasses, dust, and water.
•For UPS with hardwired input, the connection to the branch circuit (mains)
must be performed by a licensed electrician. Always connect the UPS to a
grounded outlet.
•Strain relief (not included) is required for all input and output hardwiring.
•All openings that allow access to UPS hardwire terminals must be covered for
safety. Failure to do so may result in personal injury or equipment damage.
•Leave adequate space around all sides of the UPS and EBB for proper
ventilation.
•CAUTION: Risk of electric shock. Condensation may occur if the UPS is
moved directly from a cold to warm environment. The UPS must be
absolutely dry before being installed. Allow an acclimatization time of at least
two hours.
•A protection circuit breaker must be installed upstream and be easily
accessible. The system can be disconnected from the AC power source by
opening this circuit breaker.
•Connect the UPS to mains power source that is adequately protected against
excess currents, short circuits, and earth faults as part of the building
installation.
•The ground conductor must be grounded to earth at the service equipment, or
if supplied by a separately derived system, at the supply transformer or motor
generator set. The UPS input ground conductor must be properly bonded to
protective earth at the service panel.

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•The UPS should be installed near the connected equipment for easy
accessibility. Avoid placing the product in a busy area where it can
accidentally be knocked over.
•Ensure cables to and from the UPS are placed in such a way that no one can
step on or trip over them. And never allow power supply cords to touch hot
surfaces.
•Only use a UL-, TUV-, or ETL-marked power cable to connect any equipment
to the UPS or as a mains cable to connect the UPS to AC outlet.
•Never plug the UPS into itself; it will damage the UPS. And always make sure
the plug is fully inserted.
•CAUTION: Risk of fire. Do not use an improper size power cord. Use
10AWG (for 3KVA output wire) and 12AWG (for 2KVA output wire), 75°C
copper wire and 12 lb-in torque force when connecting to terminal block.
•CAUTION: Risk of electric shock or fire. Only connect the UPS to a circuit
provided with recommended maximum branch circuit overcurrent protection
with an ampere rating in accordance with the National Electrical Code®
(NEC®), ANSI/NFPA 70, Canadian Electrical Code, Part 1, C22.1, or your
national and local electrical code:
UPS
Capacity
Branch Circuit
Breaker
Circuit Breaker
Specification
Wiring
AWG
Wiring
mm2
1000VA
15A
240V, 16A, 2-pole
12AWG
3.3
2000VA
20A
240V, 30A, 2-pole
12AWG
3.3
3000VA
30A
240V, 40A, 2-pole
10AWG
5.3
•CAUTION: Risk of electric shock. Do not hardwire equipment to the 2KVA /
3KVA output terminal while the UPS is on or running off battery power.
Always turn off power, unplug from power source, and ensure there is no
voltage present before hardwiring the UPS or any equipment.
•CAUTION: Risk of electric shock. Verify all branch circuit (mains) and low
voltage (control) circuits are de-energized and locked out before installing
cables or making connections, whether in the junction box or to the UPS.
•WARNING: Keep the product on level surfaces. The product could
become unstable and may tip over if stored or moved on an uneven surface,
which may cause personal injury, death, or product damage.
•If the mains input for your unit is hardwire, earthing connection is essential
before connecting to the building wiring terminal.
•WARNING: Do not use with high-risk activities such as nuclear, medical,
life support equipment, or aquariums, or near water or in a damp
environment. Never use this UPS with life support equipment or any
equipment where failure of this equipment can reasonably be expected to
cause the failure of the life support equipment or to significantly affect its
safety or effectiveness. Never use this UPS in the presence of a flammable
anesthetic mixture with air, oxygen, or nitrous oxide.
1.2. OPERATION

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•Do not disconnect the ground conductor cable from the UPS or the building
wiring terminals at any time as this would cancel the protective grounding of
the UPS system and all connected equipment.
•This UPS contains internal batteries and may carry live voltage even when
the UPS is disconnected from the branch circuit (mains).
•Do not unplug the input power cord while the UPS is running off AC power.
This removes the protecting grounding from the UPS.
•Ensure that no liquid or other foreign objects can enter the UPS. Never install
this UPS near water, including aquariums, or other high-risk activities.
•CAUTION: Risk of electric shock or fire. Do not use extension cords or
surge protectors to or from the UPS, and do plug the UPS input into itself. All
of these may damage the UPS, be a fire hazard, cause overload, or damage
connected equipment.
•CAUTION: Risk of suffocation, choking, physical injury, or electric
shock. Do not allow people with reduced sensory, physical, or mental
capacity, children, or pets play with or be left unattended with the packaging
material, plastic bags, battery, UPS, or other small parts.
1.3. MAINTENANCE
•CAUTION: Risk of electric shock. The UPS operates with hazardous
voltages. Maintenance, repair, or battery replacement should be carried out
only by qualified maintenance personnel only.
•CAUTION: Risk of electric shock. Even after the unit is disconnected from
the mains power supply (building wiring terminal), components inside the
UPS are still connected to the battery which have potentially dangerous.
•Before carrying out any kind of service and/or maintenance, please
disconnect the batteries. Verify that no current is present and no hazardous
voltage exists in the capacitor or BUS capacitor terminals.
•CAUTION: Risk of electric shock. The battery circuit is not isolated from the
input voltage. Hazardous voltage may occur between the battery terminals
and the ground. Verify that no voltage is present before servicing.
•WARNING: Electric energy hazard. Do not attempt to alter any battery
wiring or connectors. Attempting to alter wiring can cause serious injury.
•Only replace the fuse only with the same type and of the same amperage in
order to avoid fire hazards.
1.4. BATTERY SAFETY
•Batteries should only be serviced or replaced by qualified personnel who are
familiar with the procedures and safety precautions.
•When replacing batteries, replace with the same type and number of batteries
or battery packs. Only replace with new batteries.

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•WARNING: Never dispose of batteries in a fire. The batteries may explode
when exposed to high heat or exposed to flame.
•WARNING: Do not open or mutilate batteries. Released electrolyte is
harmful to the skin and eyes, and may be toxic. If acid is spilled or spread on
the skin or eyes, flush with fresh water and contact a physician immediately.
•CAUTION: Risk of electric shock. Batteries can present a risk of electrical
shock and high short circuit current. The following precautions should always
be observed when working on batteries:
a) Remove watches, rings, or other metal objects.
b) Use tools with insulated handles.
c) Wear rubber gloves and boots.
d) Wear eye protection.
e) Do not lay tools or metal parts on top of the UPS or battery terminals.
f) Disconnect charging source prior to connecting or disconnecting battery
terminals.
g) Determine if battery is inadvertently grounded. If inadvertently grounded,
remove source from ground. Contact with any part of a grounded battery
can result in electrical shock. The likelihood of such shock can be reduced
if such grounds are removed during installation and maintenance
(applicable to equipment and remote battery supplies not having a
grounded supply circuit).
•Overcharging, overheating, or other misuse of batteries can result in
discharge of battery electrolyte. Released electrolyte is harmful to the skin
and eyes, and may be toxic.
•If the UPS is defective, disconnect the internal battery before storage,
disposal, or transportation.
•Proper disposal of batteries is required. Contact your local battery recycling
center or refer to your local codes for disposal requirements.
1.5. ADDITIONAL PRECAUTIONS
•Changes and modifications to this unit not expressly approved by Maruson
could void the warranty.
•There are no user serviceable parts inside the UPS. Never perform any
repairs or maintenance unless by an authorized service personal.
•Improper usage, operation, handling, tampering, misuse, abuse, lack of
maintenance, and/or use of the UPS or connected equipment not in
accordance with the user manual are never covered under warranty.
2. INSTALLATION
2.1. UNPACKING AND INSPECTION
2.1.1. Unpacking

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This package contains: (1) Tacoma UPS, (1) USB Communication Cable, (1)
Software CD, and (1) User Manual.
2.1.2. Handling Safety
CAUTION: Failure to follow safe lifting techniques may result in physical
injury and equipment damage. The UPS is heavy. Check product weights
listed in this manual before lifting or maneuvering. Do not attempt to lift, move, or
otherwise risk physical injury or equipment damage unless you or anyone
assisting you is physically fit and mentally clear to do. Inspect the UPS
Check for any damage that may have occurred during transportation before
installation. Notify your dealer if there is any damage to the UPS and do not turn
on the UPS. Keep all packaging in case you need it in the future.
NOTE: Do not install the UPS or EBB with its front or rear panel facing down at
any angle. Placement in such a way will seriously inhibit the unit’s internal
cooling and damage the unit, which will not covered under warranty.
2.2. UPS INSTALLATION
1) Make sure the wire / circuit breaker / sockets capacities are sufficient for the
current rating of UPS capacity rating to avoid risk of electric shock and fire
hazards.
Note: Any equipment with motors must take into consideration the in-rush
current as part of the overall UPS capacity.
WARNING: It is recommended to use a 10AWG for the 3KVA model if your
3KVA model is a hardwired input version.
2) Install the UPS in a location with at least 7.8 in (20 cm) of airflow around the
sides for adequate airflow. Do not block the UPS fans.
3) Make sure the mains switch in the building is cut off and UPS powered off
before any hardwiring (if your UPS requires hardwiring mains input).
4) Turn off all load switches first before connecting the load to the UPS.
5) Connect equipment to the UPS through the outlet sockets.
6) Allow the UPS to charge for at least 10 hours before first use to maximize
battery runtime at initial startup.
Note: The batteries will charge anytime it is plugged into an AC power source
regardless of UPS on/off status. The battery load meter indicating it is always
charging is normal for this UPS.
2.3. EXTERNAL BATTERY BANK (EBB) INSTALLATION
Connect EBBs to your UPS to increase battery runtime during extended power
outages.
1) Make sure the UPS is powered off and not plugged to an AC power source
before connecting the EBB to the UPS. Only use the EBB model designed for
your UPS model. Never modify any EBB battery connectors.

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2) Remove the two screws over the Battery Connector Plate. Save the Plate in
case you no longer need an EBB later on.
3) Connect the EBB Battery Connector to the UPS Battery Connector. Make
sure to align the correct colors on the EBB Battery Connector to the UPS
Battery Connector.
4) Secure in place with the two screws from the UPS Battery Connector Plate.
5) Connect equipment to the UPS outlet sockets.
6) Connect the input power cord of UPS to mains and turn the UPS ON. No
setting changes are required, the UPS will automatically detect the EBB.
WARNING: Check the battery voltage rating marked on the rear panel before
replacing any batteries. Using the wrong battery voltage may cause
permanent damage of the UPS.
WARNING: Pay special attention to the polarity marking on external battery
terminal block, and make sure the correct battery polarity is connected.
WARNING: Using the wrong battery connector may cause permanent
damage of the UPS and/or EBB. Only use the supplied external battery cable
to connect the EBB and UPS. Third-party EBBs and EBBs not specifically
made for your UPS will void all warranties.
•If there isn’t any specified external battery cable, please prepare the external
battery cable that should be able to carry the current of >42A for 3KVA model,
and >28A for 1KVA & 2KVA models. The cross-section area should be
greater than 10 mm² for 3KVA, and greater than 4 mm² for 1KVA & 2KVA
models. The battery wire color is recommended as following:
＋
GND
－
Red wire
Yellow/Green wire
Black wire
a) Connect the GND pole of external battery cable to the earth point of
battery pack. Connect the Positive (+) pole of external battery cable to
the Positive polarity of battery pack. Connect the Negative (-) pole of
external battery cable to the Negative polarity of battery pack.
Note: Always connect the ground wire first for safety!
b) Connect the external battery cable plug to the external battery terminal
block on the rear panel of UPS.
c) Check the wiring and voltage of the battery pack. Make sure the polarity
and voltage are correct, and the wires are fastened.
•A maximum of 3 external battery banks can be connected in parallel to the
UPS. Do not add more than 3 or your UPS will underperform and possibly
damage the UPS or battery banks.
Note: Never connect or disconnect EBBs when the UPS is running on battery
power.
2.4. POWER MANAGEMENT SOFTWARE

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The included power management software is compatible with select server and
computer operating systems to monitor and control your UPS system. To use the
software:
1) Connect the USB cable that came with the UPS to the UPS and your
computer. If using a RS232 cable, please lock the secure screw both on UPS
and PC after connection.
2) Install the CD that came with your UPS. The software serial number is the
serial number printed on the CD; it is not the serial number listed on the UPS
product label.
3) Follow the on-screen instructions to complete setup. In some cases,
restarting your operating system may be required after installation to use.
3. PRODUCT INTRODUCTION
The Maruson Tacoma is a high performance online double-conversion UPS
providing protection from common power disturbances while delivering pure sine
wave output and zero transfer time in Line Mode for critical equipment. This UPS
will protect connected equipment from brief utility blackouts, brownouts, sags,
surges, line noise, and other minor utility power fluctuations. Advanced battery
management will monitor internal batteries to increase battery service life, help
charge the battery based on battery capacity conditions, and sends a helpful
warning before the end of battery lifecycle so you know when it is time to
replace.
3.1. OPERATION FLOW
1) The UPS receives power from the mains power supply (AC) to go through a
surge suppressor and EMI/RFI filter.
2) Power then travels either to the rectifier to convert the power from AC (mains
power supply) to DC (battery power) or bypasses the rectifier to deliver
power directly to connected equipment through the static bypass switch.
Note: When the UPS is operating in bypass, the power path does not protect
connected equipment from power disturbances such as power failure, surge,
and sags.
3) When the power travels through the rectifier, the power converts from AC to
DC and then travels to the battery charger to charge the batteries while
simultaneously directly providing power from the rectifier to inverter to
convert DC to AC power.
4) Power routed through the inverter or static bypass switch then gets filtered
by the EMI/RFI filter to minimize EMI (electromagnetic interference) and RFI
(radio frequency interference) that came from the mains power to protect
connected equipment.
5) In the event the mains input is abnormal, the controller will stop the AC/DC
rectifier and switch over to DC/DC to supply battery power to the inverter
(AC/DC) until AC power returns to normal.

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Figure 1 - System Block Diagram
3.2. OPERATION MODES
Different string codes will display on the LCD module depending on the
conditions the UPS detects. Only one normal operating code or fault code will be
displayed at a time. Warnings though, can appear with several warnings
displayed onscreen even if under normal operating modes. And the normal
operating mode string and the warning string will cycle through on screen. Once
one fault has come forth, all previous warnings will not display again.
STRING
CODE
DESCRIPTION
LINE
Line Mode / Normal: UPS is operating normally and supplying power to
connected equipment.
STbY
Standby / No Output Mode:UPS is powered but not supplying power to the
sockets or connected equipment.
bYPA
Bypass Mode:An overload or fault has been detected, or command was
received, and UPS has transferred the load to utility power, bypassing the normal
route. Connected equipment is powered but is not protected by the UPS. Audible
alert will beep every 2 minutes in this mode.
bATT
Battery Mode:Utility power failure has occurred and connected equipment is
now powered by battery power. Audible alert will beep every 4 seconds in this
mode.
TEST
Battery Test Mode:UPS is testing battery conditions.

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ECO
ECO Mode:UPS is operating on economy mode. Connected equipment is
powered by utility power but will not be protected by the UPS.
3.2.1. Line Mode / Normal Mode
Line Mode is the standard operating mode for your UPS offering the highest
level of protection. In Line Mode, the mains input is rectified/converted by the
AC/DC section and then inverted to stable output by DC/AC section. If a power
disturbance occurs outside the operational range, the UPS will automatically
switch over to Battery Mode and maintain sine wave output without interruption.
In Line Mode, the LCD main menu will display utility power, battery level, UPS
output, and the load level. The “LINE” status indicates the UPS is working in Line
Mode. This is the recommended mode to operate the UPS in.
Figure 2 - Line Mode
3.2.2. Standby Mode
“STbY” code indicates the UPS is on Standby Mode. The UPS will be in Standby
Mode when first connected to a mains power source. In Standby Mode, the UPS
is receiving mains power to charge internal batteries, but is not supplying power
to connected equipment and will not supply battery backup (since outlets are not
activated).
To turn on the UPS completely while in Standby Mode, press the ON button for 2
seconds and wait while it completes initial testing (approximately 15 seconds).
To turn the UPS off from Standby Mode, simply unplug from the mains power
source and wait while the UPS completes shut off before it completely powers
off.

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Figure 3 - Standby Mode
3.2.3. Bypass Mode
In Bypass Mode, power is directly routed from the mains power to connected
equipment, bypassing internal converters and without regulation. If the controller
detects the mains is abnormal, it will shut off the output to protect the load.
The “bYPA” code status and beep once every 2 minutes indicates the UPS is
working Bypass Mode. Information about the utility power, the battery level, the
UPS output and the load level will be displayed.
Note: If mains power fails while in Bypass Mode, the UPS will not switch over to
Battery Mode. Connected equipment will not have battery backup protection in
this mode, or be protected from power surge and sags.
Figure 4 - Bypass Mode
3.2.4. Battery Mode
In Battery Mode, power to connected equipment is supplied by battery power
(DC/DC) to the inverter (DC/AC) if mains power fails. When the mains input
recovers, the UPS will then automatically transfer to Line Mode.
The “bATT” code and alarm beep every 4 seconds indicating the UPS is in
Battery Mode. If the “ON” button on the front panel is pressed while in this mode
for more than 1 second, the alarm will temporarily mute. Press the “ON” button

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once again for more than 1 second to resume the alarm function. In this mode,
information about battery level, UPS output, and load level will display.
This UPS also has cold start function to start the UPS without a mains power
source and supply power to connected equipment from the reserve battery
power if batteries have enough capacity to do so. To start the UPS without mains
power, press the ON button for the UPS for 2 seconds. The UPS will power on in
Standby Mode before automatically switching over to Battery Mode after a brief
startup test. In Battery Mode, the input voltage will display the battery voltage
level and Battery Capacity bar will slowly deplete while in Battery Mode. There
are no audible alerts if the UPS is cold started to Battery Mode.
Note: It is recommended to use AC mains power whenever available to
maximize battery lifespan.
Figure 5 - Battery Mode
3.2.5. Battery Test Mode
In this mode, the UPS will stop the AC/DC section and discharge the battery
briefly while mains input is normal. If the UPS detects a battery error, it will
transfer back to Line Mode immediately, and a warning will display to determine
whether the batteries need to be replaced.
Enter Battery Test Mode while in Line Mode or ECO Mode by pressing the ON
button for 1 second or through the power management software. The LCD
module in Battery Test Mode will display the same as the Battery Mode with the
exception of a “TEST” code indicating the UPS is working in Battery Test Mode.
3.2.6. ECO (Economy) Mode
ECO (Economy) Mode, also known as high efficiency mode or active standby
mode, is the most energy efficient operating mode with the downside of the
inverter being on standby rather than online to instantly switch over to battery
power in case of a power disruption. Mains power in this mode bypasses the
double-conversion (AC/DC and DC/AC) function and the UPS will have a
transfer time of less than 10ms (whereas in Line Mode there is zero transfer

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time). Power conditioning will also be off if set to ECO Mode. This mode is not
recommended for loads that require zero transfer time function.
In ECO Mode, LCD will display “ECO”.
3.2.7. EPO Mode
EPO (Emergency Power Off) Mode is a safety feature used to remotely shut
down the UPS in emergency conditions (e.g., fire or other response requiring
rapid building evacuation).
When the EPO switch is activated by removing the EPO Tab, the UPS
immediately cuts off power to connected equipment and turns off the rectifier and
inverter. The battery charger also stops charging the batteries. The UPS control
circuit will remain active if there is a mains power source supplied to the input
power (e.g., wall outlet). A “EPO” status code will appear on the LCD while in
this mode.
You will not be able to operate the UPS normally or completely shut off the UPS
from the control panel until the EPO status is deactivated by reinserting the EPO
Tab.
To restart the UPS after triggering EPO Mode:
1) Ensure the cause of requiring EPO Mode has been resolved.
2) Reinsert the EPO Tab.
3) Press the ON button for 2 seconds before releasing. UPS will start up
normally after it completes diagnostics.
3.2.8. Fault Mode
If the UPS detects internal failure and the inverter needs to halt, it will go into
Fault Mode and a warning symbol will flash on-screen and emit an audible alert.
In Fault Mode, the equipment has a risk of power loss due to the output power
coming from bypass.
In Fault Mode, such as Bus Fault, the corresponding fault string will flash on-
screen to indicate the operating mode of the UPS and the LCD background light
will be red. For example, “SHOR” will be shown when the load or the UPS output
is short. The LCD module is shown in the following diagram. Refer to the
Troubleshooting section for further information.

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Figure 6 - Fault Mode
3.3. DISPLAY INTERFACE
3.3.1. Control Panel
Figure 7 –Control Panel
3.3.2. LCD Module
ICON
FUNCTION
ICON
FUNCTION
INPUT INFORMATION
OUTPUT INFORMATION
Input Measurements: Indicates
input voltage/frequency values,
which are displayed alternately.
Output Measurements:
Indicates output
voltage/frequency values, which
are displayed alternately.
Mains Power: Indicates input
power is supplied by the mains
power.
Sockets: Refers to the output
sockets.
It indicates the number of the
input supplied from the mains.
It indicates the Number of the
output connected with load.
BATTERY INFORMATION
LOAD INFORMATION

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Battery Capacity: Every grid
represents a capacity of 20%.
The UPS is always charging the
battery and using battery power
while plugged into a mains power
source when conditions are
normal. It is normal to see the
battery grid indicating it is
charging in normal conditions.
UPS Load Capacity: Every grid
represents a capacity level of
20%.
MODE / FAULT / WARNING INFORMATION
MISCELLANEOUS
Supplement information
indicating operating mode, Fault
error codes, or Warning error
codes.
Settings: Indicates the UPS is
in Setting Mode.
It indicates the UPS is in Fault
Mode or has detected a
warning.
3.4. CONTROL PANEL
BUTTON
FUNCTION
ON
Turn ON UPS system: Press the ON button for 2 seconds before releasing.
You will hear a beep and UPS will cycle through a brief startup test before
supplying power to the sockets.
When the UPS is in Standby Mode, it is not supplying power to the outlets.
Press the ON button while in Standby Mode to change to Line Mode or ECO
Mode to activate outlets. To change the UPS to either UPS / Line Mode or
ECO Mode, go to the Settings section of this manual.
Mute audible alarm: While in Battery Mode, press the ON button for 1
second to temporarily disable audible alerts. Once mains power is restored,
audible alerts will be reset to enabled.
Cold start: To start the UPS in Battery Mode during a power failure, press
and hold the ON button for 2 seconds before releasing. The UPS will cycle
through a brief startup test before supplying power to the sockets.
Conduct battery test: While the UPS is in Line Mode or ECO Mode, press
the ON button for 2 seconds to run a battery test. Only available while in
either of these two modes.
OFF
Change to Standby Mode or Bypass Mode: When mains power is normal,
the UPS system switches to Standby / No Output or Bypass Mode by
pressing the OFF button and the inverter is off. At this moment, if Bypass is
enabled, then the output sockets are supplied with voltage via the bypass if
the mains power is available.
Deactivate acoustic alarm: By pressing this button the audible alarm can be
disabled in Bypass Mode.
Mute audible alarm: While in Bypass Mode, press the OFF button for 1
second to temporarily disable audible alerts.
Turn OFF UPS output: Press the OFF button for 3 seconds. You will hear a
beep before the UPS transfers to Standby / No Output Mode. The UPS will
still charge the batteries as long as it is plugged into an mains power supply,
but will not supply power to connected equipment. The UPS can be
unplugged and placed in storage at this point.

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Select
While the UPS system is in Standby / No Output or Bypass Mode, you may
change the settings of the UPS. To change the UPS settings, hold the Select
button until a tool icon flashes on screen. Press Select to cycle through the
output voltage, frequency, bypass disable/enable, and ECO or Normal Mode.
Confirm your selection by pressing Enter.
Enter
If the UPS system is Standby / No Output or Bypass Mode, confirm settings
selection by pressing Enter button.
The LCD screen will automatically dim after 30 seconds of inactivity. Press any
button for the LCD to illuminate.
Note: The “ ” symbol is the OFF button. The ON button is left of the OFF
button.
3.5. REAR PANEL RENDERING
Figure 8 - TAC-LV1K (1KVA)

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Figure 9 - TAC-LV2K (2KVA)
Figure 10 - TAC-LV3K (3KVA)

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Features
Function
EPO Tab
EPO (Emergency Power Off) Tab is a safety feature to instantly cut off
power from the UPS inverter to prevent transfer to internal bypass.
To activate EPO, pull the safety tab for 1 second. If the trigger that caused
EPO to activate is no longer present, reinsert the EPO Tab into the UPS to
return the UPS to normal operations.
Option to connect to an EPO switch for single access point for instant
power-off in emergency situations.
USB Port
Connect to a compatible server or computer for communication,
monitoring, and control of the UPS.
RS232 Port
Serial communication port to communicate with the UPS. Required
connection to enable/disable and change Controlled Outlet Groups (2KVA
and 3KVA) settings.
Cooling Fan
Runs at different speeds to keep internal components cool.
Input Line
Input power cord or terminal input for connection from input circuit branch
(mains).
Breaker
Protects UPS from output overload. If this trips, remove some equipment
load from the UPS and allow the UPS to cool. Reset the breaker and turn
on the UPS and connected equipment.
Intelligent Slot
Add an optional communication card to remotely monitor, control, and
communicate with the UPS.
Battery
Connector
Add an optional external battery bank (EBB) for additional battery runtime
during power outages. Connect up to 3 EBBs.
Fuse
3KVA model only. Protects the connected equipment from electrical surge.
Replace with the same type fuse if blown or your connected equipment will
not be protected.
Output Socket
These sockets provide pure sine wave AC power output when running on
battery power. In a power outage or severe brownout, these outlets will be
powered by battery.
2KVA and 3KVA models have programmable outlet groups to prioritize
battery backup for mission critical equipment. The settings for the
programmable outlet groups can be set through the software.
Terminal Output
Connect equipment to UPS by hardwire connection.
3.6. OUTPUT HARDWIRE (2KVA / 3KVA MODELS)
1) Power off the UPS and disconnect from AC power source.
2) Remove the screws over the terminal outlet cover and set aside with the
cover plate.
3) Connect the ground wire to the appropriate ground terminal before
connecting remaining terminals.
CAUTION: Risk of electric shock. Hardwiring should only be performed by
a qualified electrician.
CAUTION: Risk of electric shock. The ground terminal should always be
connected prior to any other terminal cables.
4) Ensure all connections are secure before reinstalling the terminal cover plate
and screws.