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Xtreme Power Conversion NXTi 3P-3P, User & Installation Manual, Page: 16 / 36

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Xtreme Power Conversion NXTi 3P-3P User & Installation Manual Download Page 16

Xtreme Power Conversion Corporation

NXTi 3P-3P User’s Manual

Page 16

Uninterruptible Power Supply

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.

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

Summary of Contents for NXTi 3P-3P

Page 1: ...NXTi 3P 3P Online UPS 20kVA Model User Installation Manual www xpcc com 2015 Xtreme Power Conversion Corporation All rights reserved Rev 6 24 15 ...

Page 2: ...tion 4 Rear Panel View 5 Single UPS Installation 6 UPS Installation for Parallel System 7 SoftwareInstallation 8 Operations 8 ButtonOperation 8 LED Indicators and LCD Panel 9 AudibleAlarm 11 Single UPS Operation 12 ParallelOperation 14 Abbreviation Meaning in LCD Display 16 LCDSetting 17 Operating Mode Status Description 24 Fault Code 32 Warning Indicator 33 Warning Code 33 Troubleshooting 34 Stor...

Page 3: ...tilation Ensure enough space on each side for ventilation UPS has provided earthed terminal in the final installed system configuration equi potential earth bond ing 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 integr...

Page 4: ... Please refer to the following model table Model Type Model Type NXTi 20K Standard model NXTi 20KL Long run model We also offer optional parallel function for these two types by request The UPS with parallel function is called as Parallel model We have described detailed installation and operation of Parallel Model in the following chapter Unpacking and Inspection Unpack the package and check the ...

Page 5: ...Xtreme Power Conversion Corporation NXTi 3P 3P User s Manual Page 5 Uninterruptible Power Supply Rear Panel View 20K 20KL Rear Panel 20K 20KL Input Output Terminal ...

Page 6: ...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 current is less than the UPS s maximum input current Otherwise the receptacle may be burned and destroyed 2 Switch off the mains switch in the building before installation 3 Turn off all the connected devices before connecting to the UPS 4 Prepare wires based on the fo...

Page 7: ...stall the battery pack Pay highly attention to the rated battery voltage marked on the rear panel If you want to change the num bers 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 ba...

Page 8: ...S Enter Key Press this button to confirm the selection in setting menu OFF ESC Button Turn off the UPS Press and hold the button more than 0 5s to turn off the UPS Esc key Press this button to return to last menu in setting menu Test Up Button Battery test Press and hold the button more than 0 5s to test the battery while in AC mode and CVCF mode UP key Press this button to display next selection ...

Page 9: ...ply LED Indicators and LCD Panel LED Indicators There are 4 LEDs on front panel to show the UPS working status Mode 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 ...

Page 10: ...sabled 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 ...

Page 11: ...Hz input frequency Audible Alarm Description Buzzer status Muted UPS status Bypass mode Beeping once every 2 minutes Yes Battery mode Beeping once every 4 seconds Fault mode Beeping continuously Warning Overload Beeping twice every second No Low battery Beeping once every second Battery unconnected Over charge EPO enable Fan failure Over temperature Charger failure L1 IP fuse broken Battery fuse b...

Page 12: ...ss 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 Turn on the ...

Page 13: ...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 de...

Page 14: ... 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 line input breaker for dual input unit also switch off the bypass input breaker and switch off the battery breaker only available for long run model 4 Remove the cabinet cover and disconnect battery wire for standard model Then modify the jumper of JS3 ...

Page 15: ...f more detailed information is needed please contact supplier or service center for parallel operation instruc tion 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 off 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 ...

Page 16: ...it 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 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 N...

Page 17: ... CA The third line LCD Setting There are three parameters to set up the UPS Refer to following diagram Note The following order of setting code only presents when UPS is in Bypass Mode or no output mode The set ting code number will change the numbers under other modes For example when the UPS is in AC mode the to tal available setting becomes 7 only Then setting code of Bypass mode setting will b...

Page 18: ... Battery voltage calibration Y Y Y Y Y Y 14 Charger voltage adjustment Y Y Y Y Y Y 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 calibration Y Y Y 19 Output B voltage calibration Y Y Y 20 Output C voltage calibration Y Y Y Y means that this program can be set in this mode Note All parameter settings will be ...

Page 19: ...g 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 i...

Page 20: ...S 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 func tion is enabled 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 r...

Page 21: ...cted automatic bypass is accept able but manual bypass is not allowed Manual bypass means us ers manually operate UPS for Bypass mode For example pressing OFF button in AC mode to turn into Bypass mode 09 Battery backup time setting Interface Setting Parameter 3 000 999 Set the maximum discharge time from 0 min to 999 min UPS will shut down to protect battery if the discharge time arrives before t...

Page 22: ...automatically Here you must mute the alarm and make the UPS go back to normal mode manually The operation is Firstly enter this menu and press the Enter key to make the CHE flash Secondly press the Enter key again to activate the neutral detection check If neutral is detected the alarm will be muted and the UPS will go back to normal mode If neutral is not detected the UPS will continue alarming a...

Page 23: ...present inverter B voltage 17 Inverter C voltage adjustment Interface Setting Parameter 2 you may choose Add or Sub to adjust inverter C volt age Parameter 3 the voltage range is from 0V to 9 9V the default value is 0V It will display number 2 under Add or Sub to represent inverter C voltage 17 Inverter C voltage adjustment Interface Setting Parameter 2 it always shows OP V as output voltage Param...

Page 24: ...put C voltage and you can calibrate it by pressing Up or Down ac cording to the measurement from 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 par allel operation It will display number 1 under OP U to represent the output B volt age Operating Mode Status Description Following table...

Page 25: ...S is powered on it will enter into this mode for a few seconds as ini tializing the CPU and system LCD display No output mode Description When L1 is out of acceptable range or bypass is disabled or forbidden UPS will enter into no output mode if powering on or turning off the UPS It means the UPS has no output Alarm beeps every two minutes LCD display ...

Page 26: ...i 3P 3P User s Manual Page 26 Uninterruptible Power Supply AC mode 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 LCD display ...

Page 27: ...tion NXTi 3P 3P User s Manual Page 27 Uninterruptible Power Supply ECO mode Description When the input voltage is within voltage regulation range and ECO mode is enabled UPS will bypass voltage to output for energy saving LCD display ...

Page 28: ... s Manual Page 28 Uninterruptible Power Supply CVCF mode Description When the output frequency is set to CF the inverter will output constant fre quency 50 Hz or 60 Hz At this mode the UPS will have no bypass output but still charge battery LCD display ...

Page 29: ... 3P User s Manual Page 29 Uninterruptible Power Supply Battery mode Description When the input voltage frequency is beyond the acceptable range or power fail ure UPS will backup power from battery and alarm will beep every 4 seconds LCD display ...

Page 30: ...Ti 3P 3P User s Manual Page 30 Uninterruptible Power Supply Bypass mode 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 LCD display ...

Page 31: ... between I P and inverter icons will blink to remind users This operation is used to check the bat tery status LCD display Warning status Description If some errors occur in the UPS but it is still running normally it will show one more screen to represent the warning situation In the warning screen the icon will be flashing and it can show up to 3 error codes and each code indicates one error You...

Page 32: ...r over current None 24 Inverter relay short circuited None 11 Inverter soft start failure None 29 Battery fuse broken in Battery mode None 12 High inverter voltage None 31 Parallel communication failure None 13 Low inverter voltage None 36 Parallel output current unbal ance None 14 Inverter A output line to neutral short circuited 41 Over temperature None 15 Inverter B output line to neutral short...

Page 33: ...econd Warning Code Warning code Warning event Warning code Warning event 01 Battery unconnected 10 L1 IP fuse broken 02 IP Neutral loss 11 L2 IP fuse broken 04 IP phase abnormal 12 L3 IP fuse broken 05 Bypass phase abnormal 21 Line situations are different in parallel system 07 Over charge 22 Bypass situations are different in parallel system 08 Low battery 33 Locked in bypass after overload 3 tim...

Page 34: ...S output 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 automati cally Remove excess loads from UPS output ...

Page 35: ...o 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 su...

Page 36: ...ECO mode 90 online mode BATTERY Battery quantity and type 40 12V 9AH No internal batteries Charger amps 2A 4A PHYSICAL Input output Hardwired UPS dimensions 250 x 815 x 826 mm 250 x 592 x 826 mm W x D x H 9 8 x 32 0 x 32 5 in 9 8 x 23 3 x 32 5 in UPS weight 164 kg 362 lbs 40 kg 88 lbs ENVIRONMENT Temperature 0 40 C 32 104 F Humidity 0 95 non condensing Audible noise 60dBA at 1 meter Altitude 3 500...

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