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. 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, 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 0.5 sec, and then the buzzer will
beep once. The UPS will turn into Bypass mode.
Note: If the UPS has been set to enable the Bypass output, it will Bypass voltage from utility power to
output sockets and terminal even though you have turned off the UPS (inverter).
Note: After turning off the UPS, please be aware that the UPS is working at Bypass mode and there is
risk of power loss for connected devices.
2) In Bypass mode, output voltage of the UPS is still present. In order to cut off the output, switch off the
input breaker. A few seconds later, there is no display shown on the display panel and UPS is completely
switched 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 0.5 sec and then the buzzer will beep once.
2) 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 0.5 sec. If you press it again after the
buzzer is muted, the buzzer will beep again.
2) Some warning alarms can’t be muted unless the error is fixed. Please refer to section 3-3 for the details.
10. Operation in warning status
1) When Fault LED flashes and the buzzer beeps once every second, it means that there are some problems
for UPS operation. Users can get the fault code from LCD panel. Please check the trouble shooting table
in chapter 4 for details.
11. Operation in Fault mode
1) When Fault LED illuminates and the buzzer beeps continuously, it means that there is a fatal error in the
UPS. Users can get the fault code from display panel. Please check the trouble shooting table in section
4 for details.
2) Please check the loads, wiring, ventilation, utility, battery and so on after the fault occurs. Don’t try to
turn on the UPS again before solving the problems. If the problems can’t be fixed, please contact the
distributor or service people immediately.
3) In emergencies, cut off the connections from utility, external battery and output immediately to avoid
more risk or danger.
12. Operation of changing battery numbers
1) This operation is only available for professional or qualified technicians.
2) Turn off the UPS. If the load 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 input breaker, and switch off the battery breaker (only available for long-run model), or
disconnect battery wire for standard model.
4) Remove the cabinet cover, and then modify the jumpers (JP1, JS3) on the control board to set the battery
numbers as following table:
Battery Number
JP1
JS3
pin1 & pin2
pin3 & pin4
pin5 & pin6
pin7 & pin8
16
X
X
0
0
0
17
X
X
1
1
0
18
X
X
0
0
1
19
X
X
1
0
1
20
X
X
1
1
1
Note: 1 = connect with jumper; 0 = no jumper; x = the pins are for other functions.
5) Modify the battery pack for the setting number carefully. After completing, put the cover back and switch
on the battery breaker for long-run model.
6) Switch on the input breaker and the UPS will enter Bypass mode. If the UPS is in maintenance Bypass
mode, turn the maintenance switch to ‘UPS’ position and then turn on the UPS.
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