background image

13 

 

 

 

 

 

 

 

 

 

 

JP1 located on charger board 

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) 

6. Test the batteries 

1)    If you need to check the battery status when the UPS is running in AC mode/CVCF 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. Turn 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 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 

line  input  breaker(for  dual  input  unit,  also  switch  off  the  bypass  line  breaker).  A  few  seconds  later, 
there is no display shown on the display panel and UPS is complete off. 

8. Turn 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. 

Summary of Contents for Liebert GXT-MT+10KVA

Page 1: ......

Page 2: ...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 info...

Page 3: ...2 4 UPS INSTALLATION FOR PARALLEL SYSTEM 7 2 5 SOFTWARE INSTALLATION 8 3 OPERATIONS 9 3 1 BUTTON OPERATION 9 3 2 LED INDICATORS AND LCD PANEL 9 3 3 AUDIBLE ALARM 11 3 4 SINGLE UPS OPERATION 11 3 5 PAR...

Page 4: ...nect 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 b...

Page 5: ...ipment can reasonably be expected to cause the failure of the life support equipment or to significantly affect its safety or effectiveness is not recommended Do not use this equipment in the presence...

Page 6: ...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 1 6 Standards Safety IEC EN 62040 1 EMI Condu...

Page 7: ...s 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 on...

Page 8: ...for parallel model 5 Parallel port only available for parallel model 6 Intelligent slot 7 Power stage fan 8 External battery connector 9 Bypass Input Circuit Breaker Only available for dual input uni...

Page 9: ...x3 LB 10 10 8 8 8 NOTE 1 The cable should be able to withstand over 40A current It is recommended to use AWG 10 or thicker wire for Phase and AWG 8 or thicker wire for Neutral for safety and efficienc...

Page 10: ...ake 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 connec...

Page 11: ...8 Wiring diagram of parallel system 2 5 Software Installation For optimal computer system protection install UPS monitoring software to fully configure UPS shutdown...

Page 12: ...play next selection in setting menu Mute Down Button 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 Down key Press this button to...

Page 13: ...put and output voltage frequency battery voltage load information and internal temperature Vac input output voltage Vdc battery voltage Hz frequency load level C F temperature Load information Indicat...

Page 14: ...rotect 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 e...

Page 15: ...n 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...

Page 16: ...section 6 Test the batteries 1 If you need to check the battery status when the UPS is running in AC mode CVCF mode you could press the Test button to let the UPS do battery self test 2 Users also can...

Page 17: ...urn off the UPS If the load couldn t 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 line i...

Page 18: ...tion 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 cabl...

Page 19: ...If the bypass is abnormal you can not remove the UPS without interruption You must cut off the load and shut down the system first 2 Make sure the bypass setting is enabled in each UPS and then turn o...

Page 20: ...BD Not allowed OPN Allow CHE Check RES Reserved L1 The first line L2 The second line L3 The third line 3 7 LCD Setting 3 7 1 LCD Main Interface A Single model Press up and down key to select the displ...

Page 21: ...unit 3 7 2 LCD Setting At the main interface press and hold the up and down buttons simultaneous for more than 1 second to enter or escape from setting menu Parameter 1 Parameter 2 There are two param...

Page 22: ...ptions 18 Reserved 19 Reserved 20 Neutral loss detection Y Y Y Y Y Y 21 Battery voltage calibration Y Y Y Y Y Y 22 Charger voltage adjustment Y Y Y Y Y Y 23 L1 inverter voltage adjustment Y Y Y 24 L2...

Page 23: ...uency is not within 46 54 Hz If 60 Hz is selected in Output frequency setting UPS will transfer to battery mode when input frequency is not within 56 64 Hz Note For single unit it will have bypass out...

Page 24: ...ss mode Interface Setting Parameter 2 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 0H...

Page 25: ...ble disable Interface Setting Parameter 2 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 one condit...

Page 26: ...or example pressing OFF button in AC mode to turn into Bypass mode 16 Maximum battery discharge time setting Interface Setting Parameter 2 001 999 Set the maximum backup time from 1 min to 999 min UPS...

Page 27: ...enerated If the UPS is turned on it will transfer to battery mode When neutral is restored the alarm will NOT be muted automatically and the UPS will NOT go back to normal mode automatically Here you...

Page 28: ...ng the default value 0 Any modification should be suitable to battery specifications 23 L1 inverter voltage adjustment Interface Setting Parameter 2 The voltage range is from 9 9V to 9 9V the default...

Page 29: ...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 28 L3 output voltage calibration Inter...

Page 30: ...able AC power to output The UPS will also charge the battery at AC mode ECO mode When the input voltage frequency is within acceptable range and ECO mode is enabled UPS will bypass voltage to output f...

Page 31: ...t start failure None 29 Battery fuse broken in Battery mode None 12 High inverter voltage None 36 Parallel output current unbalance None 13 Low inverter voltage None 41 Over temperature None 14 Invert...

Page 32: ...ode 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 differen...

Page 33: ...ly by the electrical network via the Bypass Remove excess loads from UPS output After repetitive overloads the UPS is locked in the Bypass mode Connected devices are fed directly by the mains Remove e...

Page 34: ...the connection is ok and the alarm is still displaying please refer to the LCD setting section to enter the neutral loss check menu to see if the parameter3 is CHE if it is please press the Enter key...

Page 35: ...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...

Page 36: ...ortion 2 100 Linear Load 5 100 Non linear Load Transfer Time Line Battery 0 ms Inverter Bypass 0 ms When phase lock fails 4ms interruption occurs from inverter to bypass Inverter ECO 10 ms EFFICIENCY...

Page 37: ......

Reviews: