Xtreme Power Conversion NXTi 3P-3P Guide

NXTi 3P-3P Online UPS
20kVA Model
User & Installaon Manual
www.xpcc.com | © 2015 Xtreme Power Conversion Corporaon. All rights reserved. (Rev 6/24/15)

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Table of Contents
Safety and EMC Instrucons.........................................................................3
Transportaon and Storage.............................................................................................................3
Preparaon......................................................................................................................................3
Installaon.......................................................................................................................................3
Standards.........................................................................................................................................4
Installaon and Operaon........................................................................... 4
Unpacking and Inspecon...............................................................................................................4
Rear Panel View...............................................................................................................................5
Single UPS Installaon.....................................................................................................................6
UPS Installaon for Parallel System.................................................................................................7
Soware Installaon........................................................................................................................8
Operaons...................................................................................................8
Buon Operaon.............................................................................................................................8
LED Indicators and LCD Panel..........................................................................................................9
Audible Alarm................................................................................................................................11
Single UPS Operaon.....................................................................................................................12
Parallel Operaon..........................................................................................................................14
Abbreviaon Meaning in LCD Display............................................................................................16
LCD Seng.....................................................................................................................................17
Operang Mode/Status Descripon.............................................................................................24
Fault Code..................................................................................................................................... 32
Warning Indicator..........................................................................................................................33
Warning Code............................................................................................................................... 33
Troubleshoong.........................................................................................34
Storage and Maintenance..........................................................................35
Storage...........................................................................................................................................35
Maintenance..................................................................................................................................35
Specicaons.............................................................................................36

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Safety and EMC Instrucons
Please read carefully the following user manual and the safety instrucons before installing the unit or using the
unit!
Transportaon and Storage
• Please transport the UPS system only in the original package to protect against shock and impact. The UPS
must be stored in the room where it is venlated and dry.
Preparaon
• Condensaon 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 venlaon holes in the UPS housing.
Installaon
• Do not connect appliances or devices which 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 locaon with good venlaon.
Ensure enough space on each side for venlaon.
• UPS has provided earthed terminal, in the nal installed system conguraon, equi-potenal earth bond-
ing to the external UPS baery cabinets.
• The UPS can be installed only by qualied maintenance personnel.
• An appropriate disconnect device as short-circuit backup protecon should be provided in the building
wiring installaon.
• An integral single emergency switching device which prevents further supply to the load by the UPS in any
mode of operaon should be provided in the building wiring installaon.
• Connect the earth before connecng to the building wiring terminal.
• Installaon and Wiring must be performed in accordance with the local electrical laws and regulaons.
Operaon
• Do not disconnect the earth conductor cable on the UPS or the building wiring terminals in any me since
this would cancel the protecve earth of the UPS system and of all connected loads.
• The UPS system features its own, internal current source (baeries). The UPS output sockets or output ter-
minal 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, rst press the “OFF” buon and then disconnect the mains
• Ensure that no liquid or other foreign objects can enter into the UPS system.
• The UPS can be operated by any individuals with no previous experience.

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Standards
* Safety
IEC/EN 62040-1
* 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 Magnec eld..............:IEC/EN 61000-4-8 Level 4
Low Frequency Signals............................:IEC/EN 61000-2-2
Warning: This is a product for commercial and industrial applicaon in the second environment-installaon re-
stricons or addional measures may be needed to prevent disturbances.
Installaon and Operaon
There are two dierent types of online UPS: standard and long-run models. Please refer to the following model
table.
Model Type Model Type
NXTi-20K Standard model NXTi-20KL Long-run model
We also oer oponal parallel funcon for these two types by request. The UPS with parallel funcon is called as
“Parallel model”. We have described detailed installaon and operaon of Parallel Model in the following chapter.
Unpacking and Inspecon
Unpack the package and check the package contents. The shipping package contains:
• One UPS
• One user manual
• One monitoring soware CD
• One RS-232 cable (opon)
• One USB cable
• One parallel cable (only available for parallel model)
• One share current cable (only available for parallel model)
NOTE: Before installaon, please inspect the unit. Be sure that nothing inside the package is damaged during
transportaon. Do not turn on the unit and nofy 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.

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Rear Panel View
20K/20KL Rear Panel
20K/20KL Input/Output Terminal

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1. RS-232 communicaon port
2. USB communicaon port
3. Emergency power o funcon connector (EPO connector)
4. Share current port (only available for parallel model)
5. Parallel port (only available for parallel model)
6. Intelligent slot
7. Power stage fan
8. External baery terminal(Only available for long-run model)
9. Bypass Input Circuit Breaker(Only available for dual input unit)
10. Input/Output terminal (Refer to Diagram 2)
11. Line Input circuit breaker
12. Maintenance bypass switch
13. Output Grounding terminal
14. Output terminal: connect to mission-crical loads
15. Line input terminal
16. Bypass input terminal(Only available for dual input)
17. Input Grounding terminal
Single UPS Installaon
Installaon and wiring must be performed in accordance with the local electric laws/regulaons and execute the
following instrucons by professional personnel.
1. Make sure the mains wire and breakers in the building are enough for the rated capacity of UPS to avoid
the hazards of electric shock or re.
NOTE: Do not use the wall receptacle as the input power source for the UPS, as its rated current is less than
the UPS’s maximum input current. Otherwise the receptacle may be burned and destroyed.
2. Switch o the mains switch in the building before installaon.
3. Turn o all the connected devices before connecng to the UPS.
4. Prepare wires based on the following table:
Model Wiring spec (AWG)
Input(Ph) Output(Ph) Neutral Baery Ground
20K 8 8 6 –6
20KL 8 8 6 6 6
NOTE 1: The cable for 20K/20KL should be able to withstand over 63A current. It is recommended to use
AWG 8 or thicker wire for Phase and AWG 6 or thicker wire for Neutral for safety and eciency.
NOTE 2: The cable for 30K/30KL should be able to withstand over 63A current. It is recommended to use
AWG 8 or thicker wire for Phase and AWG 4 or thicker wire for Neutral for safety and eciency.
NOTE 3: The selecons for color of wires should be followed by the local electrical laws and regulaons.
5. Remove the terminal block cover on the rear panel of UPS. Then connect the wires according to the fol-
lowing terminal block diagrams: (Connect the earth wire rst when making wire connecon. Disconnect
the earth wire last when making wire disconnecon!)

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Terminal Block wiring diagram of 20K/20KL
NOTE 1: Make sure that the wires are connected ghtly with the terminals.
NOTE 2: Please install the output breaker between the output terminal and the load, and the breaker
should be qualied with leakage current protecve funcon if necessary.
6. Put the terminal block cover back to the rear panel of the UPS.
Warning: (Only for standard model)
• Make sure the UPS is not turned on before installaon. The UPS should not be turned on during wiring
connecon.
• Do not try to modify the standard model to the long-run model. Parcularly, do not try to connect the
standard internal baery to the external baery. The baery type and voltage may be dierent. If you con-
nect them together, it maybe causes the hazard of electric shock or re!
Warning: (Only for long-run model)
Make sure a DC breaker or other protecon device between UPS and external baery pack is installed. If not,
please install it carefully. Switch o the baery breaker before installaon.
NOTE: Set the baery pack breaker in “OFF” posion and then install the baery pack.
• Pay highly aenon to the rated baery voltage marked on the rear panel. If you want to change the num-
bers of the baery pack, please make sure you modify the seng simultaneously. The connecon with
wrong baery voltage may cause permanent damage of the UPS. Make sure the voltage of the baery
pack is correct
• Pay highly aenon to the polarity marking on external baery terminal block, and make sure the correct
baery polarity is connected. Wrong connecon may cause permanent damage of the UPS.
• Make sure the protecve earth ground wiring is correct. The wire current spec, color, posion, connecon
and conductance reliability should be checked carefully.
• Make sure the ulity input & output wiring is correct. The wire current spec, color, posion, connecon
and conductance reliability should be checked carefully. Make sure the L/N site is correct, not reverse and
short-circuited.
UPS Installaon for Parallel System
If the UPS is only available for single operaon, you may skip this secon to the next.
1. Install and wires the UPSs according to the Single UPS Installaon secon.
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 con-
nect to the loads.
4. Each UPS is connected to an independent baery pack.

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NOTE: The parallel system cannot use one baery pack. Otherwise, it will cause system permanent failure.
5. Refer to the following wiring diagram:
Wiring diagram of parallel system for 20K/20KL
Soware Installaon
For opmal computer system protecon, install UPS monitoring soware to fully congure UPS shutdown.
Operaons
Buon Operaon
Buon Funcon
ON/Enter Buon • Turn on the UPS: Press and hold the buon more than 0.5s to turn on the UPS.
• Enter Key: Press this buon to conrm the selecon in seng menu.
OFF/ESC Buon • Turn o the UPS: Press and hold the buon more than 0.5s to turn o the UPS.
• Esc key: Press this buon to return to last menu in seng menu.
Test/Up Buon
• Baery test: Press and hold the buon more than 0.5s to test the baery while in
AC mode and CVCF* mode.
• UP key: Press this buon to display next selecon in seng menu.
Mute/Down Buon • Mute the alarm: Press and hold the buon more than 0.5s to mute the buzzer.
• Down key: Press this buon to display previous selecon in seng menu.
Test/Up + Mute/Down
Buon
• Press and hold the two buons simultaneous more than 1s to enter/escape the
seng menu.
* CVCF means Constant Voltage and Constant Frequency.

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LED Indicators and LCD Panel
LED Indicators
There are 4 LEDs on front panel to show the UPS working status:
Mode Bypass Line Baery Fault
UPS On ● ● ● ●
No Output mode ○ ○ ○ ○
Bypass mode ● ○ ○ ○
AC mode ○ ● ○ ○
Baery mode ○ ○ ● ○
CVCF mode ○ ● ○ ○
Baery Test ● ● ● ○
ECO mode ● ● ○ ○
Fault ○ ○ ○ ●
Note: ● means LED is lighng, and ○ means LED is faded.
LCD Panel

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Display Funcon
Backup me informaon
Indicates the baery discharge me in numbers
H: hours, M: minutes, S: seconds
Fault informaon
Indicates that the warning and fault occurs.
Indicates the fault codes
Mute operaon
Indicates that the UPS alarm is disabled.
Output & Baery voltage informaon
Indicates the output voltage, frequency or baery voltage. Vac: output voltage, Vdc:
baery voltage, Hz: frequency
Load informaon
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 operaon informaon
Indicates the UPS connects to the mains.
Indicates the baery 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.
Baery informaon

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Indicates the Baery capacity by 0-25%, 26-50%, 51-75%, and 76-100%.
Indicates the baery is not connected.
Indicates low baery level and low baery voltage.
Input & Baery voltage informaon
Indicates the input voltage or frequency or baery voltage. Vac: Input voltage, Vdc:
baery voltage, Hz: input frequency
Audible Alarm
Descripon Buzzer status Muted
UPS status
Bypass mode Beeping once every 2 minutes
YesBaery mode Beeping once every 4 seconds
Fault mode Beeping connuously
Warning
Overload Beeping twice every second
No
Low baery
Beeping once every second
Baery unconnected
Over charge
EPO enable
Fan failure
Over temperature
Charger failure
L1 IP fuse broken
Baery fuse broken
Overload 3 mes in 30min
IP Neutral loss
IP phase abnormal
Converter Current unbalance
Inverter Current unbalance
Cover of maintain switch is open
Phase auto adapt failure
Fault

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Bus start failure
Beeping connuously Yes
Bus over
Bus under
Bus unbalance
Converter over current
Inverter so start failure
High Inverter voltage
Low Inverter voltage
Inverter output short circuited
Negave power fault
Baery SCR short circuited
Inverter relay short circuited
Baery fuse broken in baery mode
Parallel communicaon failure
Parallel output current unbalance
Single UPS Operaon
Turn on the UPS with ulity power supply (in AC mode)
1. Aer power supply is connected correctly, set the breaker of the baery pack at “ON” posion (the step
only available for long-run model). Then set the line input breaker at “ON” posion(for dual input unit,
also set the bypass input breaker at “ON”). At this me the fan is running and the UPS enter to power on
mode for inializaon, several seconds later, UPS operates in Bypass mode and supplies power to the
loads via the bypass.
NOTE: When UPS is in Bypass mode, the output voltage will directly power from ulity aer 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” buon 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 ulity power is abnormal, the UPS will operate
in Baery mode without interrupon.
NOTE: When the UPS is running out baery, it will shut down automacally at Baery mode. When the
ulity power is restored, the UPS will auto restart in AC mode.
Turn on the UPS without ulity power supply (in Baery mode)
1. Make sure that the breaker of the baery pack is at “ON” posion (only for long-run model).
2. Press the “ON” buon to set up the power supply for the UPS, UPS will enter to power on mode. Aer
inializaon UPS will enter to No Output mode, then Press and hold the “ON” buon 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 Baery mode.
Connect devices to UPS
Aer the UPS is turned on, you can connect devices to the UPS.
1. Turn on the UPS rst 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 inducve 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 consumpon 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

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loads connected to the UPS less than 80% of its nominal power capacity to prevent overload for system
safety.
5. If the overload me is over acceptable me listed in spec at AC mode, the UPS will automacally transfer
to Bypass mode. Aer the overload is removed, it will return to AC mode. If the overload me is over ac-
ceptable me listed in spec at Baery mode, the UPS will become fault status. At this me, if bypass is
enabled, the UPS will power to the load via bypass. If bypass funcon is disabled or the input power is not
within bypass acceptable range, it will cut o output directly.
Charge the baeries
1. Aer the UPS is connected to the ulity power, the charger will charge the baeries automacally except
in Baery mode or during baery self-test.
2. Suggest to charge baeries at least 10 hours before use. Otherwise, the backup me may be shorter than
expected me.
3. Make sure the baery numbers seng on the control board is consistent to real connecon.
Baery mode operaon
1. When the UPS is in Baery mode, the buzzer will beep according to dierent baery capacity. If the bat-
tery capacity is more than 25%, the buzzer will beep once every 4 seconds; If the baery voltage drops to
the alarm level, the buzzer will beep quickly (once every sec) to remind users that the baery is at low level
and the UPS will shut down automacally soon. Users could switch o some non-crical loads to disable
the shutdown alarm and prolong the backup me. If there is no more load to be switched o at that me,
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 Baery mode, if buzzer sound annoys, users can press the Mute buon to disable the buzzer.
3. The backup me of the long-run model depends on the external baery capacity.
4. The backup me may vary from dierent environment temperature and load type.
5. When seng backup me for 16.5 hours (default value from LCD panel), aer discharging 16.5 hours, UPS
will shut down automacally to protect the baery. This baery discharge protecon can be enabled or
disabled through LCD panel control.
Test the baeries
1. If you need to check the baery status when the UPS is running in AC mode/CVCF mode, you could press
the “Test” buon to let the UPS do baery self-test.
2. Users also can set baery self-test through monitoring soware.
Turn o the UPS with ulity power supply in AC mode
1. Turn o the inverter of the UPS by pressing “OFF” buon 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 ulity power to
output terminal even though you have turned o the UPS (inverter).
NOTE 2: Aer turning o 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 sll present. In order to cut o the output, switch o the line
input breaker(for dual input unit, also switch o the bypass line breaker). A few seconds later, there is no
display shown on the display panel and UPS is complete o.
Turn o the UPS without ulity power supply in Baery mode
1. Turn o the UPS by pressing “OFF” buon for at least 0.5s, and then the buzzer will beep once.
2. Then UPS will cut o power to output and there is no display shown on the display panel.

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Mute the buzzer
1. To mute the buzzer, please press the “Mute” buon for at least 0.5s. If you press it again aer the buzzer
is muted, the buzzer will beep again.
2. Some warning alarms can’t be muted unless the error is xed.
Operaon in warning status
1. When Fault LED ashes and the buzzer beeps once every second, it means that there are some problems
for UPS operaon. Users can get the warning indicator from LCD panel. Please check the trouble shoong
table for details.
2. Some warning alarms can’t be muted unless the error is xed.
Operaon in Fault mode
1. When Fault LED illuminates and the buzzer beeps connuously, it means that there is a fatal error in the
UPS. Users can get the fault code from display panel. Please check the trouble shoong table for details.
2. Please check the loads, wiring, venlaon, ulity, baery and so on aer the fault occurs. Don’t try to turn
on the UPS again before solving the problems. If the problems can’t be xed, please contact the distributor
or service people immediately.
3. For emergency case, please cut o the connecon from ulity, external baery, and output immediately
to avoid more risk or danger.
Operaon of changing baery numbers
1. This operaon is only available for professional or qualied technicians.
2. Turn o the UPS. If the load couldn’t be cut o, you should remove the cover of maintenance bypass
switch on the rear panel and turn the maintenance switch to “BPS” posion rst.
3. Switch o the line input breaker (for dual input unit, also switch o the bypass input breaker), and switch
o the baery breaker (only available for long-run model).
4. Remove the cabinet cover, and disconnect baery wire for standard model. Then modify the jumper of JS3
on the control board to set the baery numbers as following table.
Baery Number in
series
J3
pin1 & pin2 pin3 & pin4 Pin5 & pin6 pin7 & pin8
18 1 0 0 X
19 0 1 0 X
20 0 0 1 X
5. Modify the baery pack for the seng number carefully. Aer complete it, put the cover back, switch on
the baery breaker for long-run model.
6. Switch on the line input breaker (for dual input unit, also switch on the bypass input breaker) and the UPS
will enter Bypass mode. If the UPS is in maintenance Bypass mode, turn the maintenance switch to “UPS”
posion and then turn on the UPS.
Parallel Operaon
Parallel system inial startup
First of all, please make sure all of the UPSs are parallel models and have the same conguraon.
1. Turn on each UPS to AC mode respecvely (Refer to secon 3-4(1)). Then, measure the inverter output
voltage of each phase for each UPS to check if the inverter voltage dierence between actual output and
seng value is less than 1.5V (typical 1V) with mulmeter. If the dierence is more than 1.5V, please cali-
brate the voltage by conguring inverter voltage adjustment in LCD seng. If voltage dierence remains
more than 1.5V aer calibraon, please contact your local distributor or service center for help.

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2. Calibrate the output voltage measurement by conguring output voltage calibraon in LCD seng to make
sure the dierence between real output voltage and detected value of UPS is less than 1V.
3. Turn o each UPS.
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 in AC mode
a. Turn on the input breaker of each UPS. Aer all UPSs enter to bypass mode, measure the voltage
dierence between the output line1 of each UPS with mulmeter. If the voltage dierence is less
than 1V, it means all connecons are correct. If the dierence is more than 1V, recheck if the wir-
ings are connected correctly.
b. Turn on the output breaker of each UPS.
c. Turn on each UPS in turns. Aer a while, the UPSs will enter to AC mode synchronously and then,
the parallel system is completed.
6. Turn on the parallel system in Baery mode
a. Turn on the baery breaker (only available in long-run model) and output breaker of each UPS.
NOTE: It’s not allowed to share one baery pack for long-run UPSs in parallel system. Each UPS
should be connected to its baery pack.
b. Turn on any one UPS. A few seconds later, the UPS will enter to baery mode.
c. Then turn on another UPS. A few seconds later, the UPS will enter to baery mode and add to the
parallel system.
d. If you have the third UPS, follow the same procedure of c). Then the parallel system is complete.
If more detailed informaon is needed, please contact supplier or service center for parallel operaon instruc-
on.
Add one new unit into the parallel system
1. You cannot add one new unit into the parallel system when whole system is running. You must cut o the
load and shutdown the system.
2. Make sure all of the UPS are the parallel models.
3. Install the new parallel system refers to the previous secon.
Remove one unit from the parallel system
There are two methods to remove one unit from the parallel system:
First method:
1. Press the “OFF” key twice and each me should be lasted for more than 0.5s. Then, the UPS will enter into
bypass mode or no output mode without output.
2. Turn o the output breaker of this unit, and then turn o the input breaker of this unit.
3. Aer it shuts down, you can turn o the baery breaker (for long-run model) and remove the parallel and
share current cables. And then remove the unit from the parallel system.
Second method:
1. If the bypass is abnormal, you can not remove the UPS without interrupon. You must cut o the load and
shut down the system rst.
2. Make sure the bypass seng is enabled in each UPS and then turn o 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 o all the input breakers and baery breakers in parallel system.
3. Turn o the output breaker and remove the parallel cable and share current cable of the UPS which you
want to remove. Then, remove it from parallel system.
4. Turn on the input breaker of the remaining UPS and the system will transfer to Bypass mode. Set the main-
tenance switches from “BPS” to “UPS and put the maintenance bypass covers back.
5. Turn on the remaining UPS according to the previous secon.

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Warning: (Only for the parallel system)
• Before turning on the parallel system to acvate inverter, make sure that all unit’s maintenance switch at
the same posion.
• When parallel system is turned on to work through inverter, please do not operate the maintenance switch
of any unit.
Abbreviaon Meaning in LCD Display
Abbreviaon Display content Meaning
ENA Enable
DIS Disable
ATO Auto
BAT Baery
NCF Normal mode (not CVCF mode)
CF CVCF mode
SUB Subtract
ADD Add
ON On
OFF O
FBD Not allowed
OPN Allow
RES Reserved
N.L Neutral line loss

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CHE Check
O P.V Output voltage
PAR Parallel, 001 means the rst UPS
AN The rst phase
BN The second phase
CN The third phase
AB The rst line
BC The second line
CA The third line
LCD Seng
There are three parameters to set up the UPS. Refer to following diagram.
Note: The following order of seng code only presents when UPS is in Bypass Mode or no-output mode. The set-
ng code number will change the numbers under other modes. For example, when the UPS is in AC mode, the to-
tal available seng becomes 7 only. Then, seng code of “Bypass mode seng” will become 01, “Baery backup
me seng” will become 02, and so on.

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16 programs available list for parameter 1:
Code Descripon Bypass / No
Output mode
AC
mode
ECO
mode
CVCF
mode
Baery
mode
Baery
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 Frequency range for ECO mode Y
08 Bypass mode seng Y Y
09 Maximum baery discharge me
seng Y YYYYY
10 Reserved Reserved for future opons
11 Reserved Reserved for future opons
12 Neutral loss detecon Y YYYYY
13 Baery voltage calibraon Y YYYYY
14 Charger voltage adjustment Y YYYYY
15 Inverter A voltage adjustment Y Y Y
16 Inverter B voltage adjustment Y Y Y
17 Inverter C voltage adjustment Y Y Y
18 Output A voltage calibraon Y Y Y
19 Output B voltage calibraon Y Y Y
20 Output C voltage calibraon Y Y Y
*Y means that this program can be set in this mode.
Note: All parameter sengs will be saved only when UPS shuts down normally with internal or external baery
connecon. (Normal UPS shutdown means turning o input breaker in bypass/no output mode).
01: Output voltage
Interface Seng
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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02: Output frequency
Interface Seng
60 Hz, CVCF mode
50 Hz, Normal mode
ATO
Parameter 2: Output Frequency
Seng the output frequency. You may choose following three op-
ons in parameter 2:
50.0Hz: The output frequency is seng for 50.0Hz.
60.0Hz: The output frequency is seng for 60.0Hz.
ATO: If selected, output frequency will be decided according to the
latest normal ulity frequency. If it is from 46Hz to 54Hz, the out-
put frequency will be 50.0Hz. If it is from 56Hz to 64Hz, the output
frequency will be 60.0Hz. ATO is default seng.
Parameter 3: Frequency mode
Seng output frequency at CVCF mode or not CVCF mode. You may
choose following two opons in parameter 3:
CF: Seng UPS to CVCF mode. If selected, the output frequency will
be xed at 50Hz or 60Hz according to seng in parameter 2.
The input frequency could be from 46Hz to 64Hz.
NCF: Seng 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 seng in
parameter 2. If 50 Hz selected in parameter 2, UPS will transfer to
baery mode when input frequency is not within 46~54 Hz. If 60Hz
selected in parameter 2, UPS will transfer to baery mode when
input frequency is not within 56~64 Hz.
*If Parameter 2 is ATO, the Parameter 3 will show the current fre-
quency.
Note: For single unit, it will have bypass output for a couple of seconds aer the unit is powered on. Therefore,
to avoid damage on connected devices, it’s strongly suggested to add an addional Output relay board for CVCF
applicaon.
03: Voltage range for bypass
Interface Seng
Parameter 2: Set the acceptable low voltage for bypass. Seng
range is from 110V to 209V and the default value is 110V.
Parameter 3: Set the acceptable high voltage for bypass. Seng
range is from 231V to 276V and the default value is 264V.

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04: Frequency range for bypass
Interface Seng
Parameter 2: Set the acceptable low frequency for bypass.
50 Hz system: Seng range is from 46.0Hz to 49.0Hz.
60 Hz system: Seng 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: Seng range is from 51.0Hz to 54.0 Hz.
60 Hz: Seng range is from 61.0Hz to 64.0Hz.
The default value is 54.0Hz/64.0Hz.
05: ECO mode enable/disable
Interface Seng
Parameter 3: Enable or disable ECO funcon. You may choose fol-
lowing two opons:
DIS: disable ECO funcon
ENA: enable ECO funcon
If ECO funcon is disabled, voltage range and frequency range for
ECO mode sll can be set, but it is meaningless unless the ECO func-
on is enabled.
06: Voltage range for ECO mode
Interface Seng
Parameter 2: Low voltage point in ECO mode. The seng range is
from -5% to -10% of the nominal voltage.
Parameter 3: High voltage point in ECO mode. The seng range is
from +5% to +10% of the nominal voltage.
07: Frequency range for ECO mode
Interface Seng
Parameter 2: Set low voltage point for ECO mode.
50 Hz system: Seng range is from 46.0Hz to 48.0Hz.
60 Hz system: Seng 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: Seng range is from 52.0Hz to 54.0 Hz.
60 Hz: Seng range is from 62.0Hz to 64.0Hz.
The default value is 52.0Hz/62.0Hz.